Neil Young Jams With The Heartbreakers Stephen Stills At Light Up The

first_img Twitter News Neil Young Joined By The Heartbreakers Onstage neil-young-jams-heartbreakers-stephen-stills-light-blues-2018 Facebook Neil Young Jams With The Heartbreakers, Stephen Stills At Light Up The Blues 2018 Email Young brought some special guests out during his set at the annual benefit concert for Autism SpeaksBrian HaackGRAMMYs Apr 23, 2018 – 5:33 pm At the fifth annual Light Up The Blues concert special for Autism Speaks, GRAMMY-winning singer/songwriter and folk rock icon Neil Young came prepared with a few special surprises on tap.Following a rousing performance of the piano ballad “Birds” from After The Goldrush, Young informed the gathered crowd that he planned to bring his “brother” up on stage. Moments later, out walked Stephen Stills. Prior to joining up with David Crosby and Graham Nash to form Crosby Stills and Nash, Stills worked closely with Young as co-founding members of Buffalo Springfield.After the pair played a brief, tight set incorporating such favorites as “Long May You Run,” “For What It’s Worth” and “Mr. Soul,” the duo became a trio as Patti Smith walked onstage to join them for “People Have The Power.”Prior to joining Young for his own surprise performance, Stills brought out a few unexpected guests of his own during a previous set, as Mike Campbell, Benmont Tench and Steve Ferrone of the Heartbreakers took the stage together for the first time since the passing of their onetime band leader Tom Petty. Together with Stills, the band treated the audience to a rendition of “I Won’t Back Down,” that served as an impromptu tribute to their fallen friend.Light Up The Blues was originally founded by Stills and his wife Kristen as a fund-raising effort to benefit Autism research. Since its inception, the concert has traditionally featured strong lineups of classic musicians, actors and stand-up comedians. Jack Black has hosted the event for all five iterations.Catching Up On Music News Powered By The Recording Academy Just Got Easier. Have A Google Home Device? “Talk To GRAMMYs”Read morelast_img read more

5 Things To Do In Wilmington On Saturday March 23 2019

first_imgWILMINGTON, MA — Below are 5 things to do in Wilmington on Saturday, March 23, 2019:#1) God Given Talent Show At Villanova HallThe Parish of the Transfiguration’s Youth Group will be hosting a God Given Talent Show from 6:30pm to 8:30pm at Villanova Hall. Tickets are $5 each and there will be some great raffle prizes. Refreshments will be served and Smile Train donations will be accepted. Proceeds will benefit the Faith Formation and Outreach programs.#2) Train & Toy Show To Shriners AuditoriumThe largest train and toy show in the Northeast is coming to town.Greenberg’s Train & Toy Show stops at the Shriners Auditorium (99 Fordham Road) in Wilmington on Saturday, March 23, 2019, from 10am to 4pm, and Sunday, March 24, 2019, from 10am to 4pm.The event features:100+ exhibitors from across the country350+ tables of trains for saleHuge operating modular train layoutsFree modeling seminars and clinicsFree test track and door prize drawingsAccording to the event’s website: “Since 1976, Greenberg’s Train & Toy Show has been the largest traveling model train and toy show to serve the northeastern United States…. Our shows offer free workshops on a variety of topics as well as demonstrations. Our shows also attract dealers from across the country that carry rare and hard to find items not offered in local hobby shops. If you’re interested in the hobby, you won’t find a better place for model railroading than Greenberg’s Train & Toy Show!  Our shows are designed to promote toy trains to even the youngest enthusiast… Any child who comes to the show is admitted FREE!  We want every child to have the opportunity to experience the wonderful world of model trains!”Adult admission costs $10 on Saturday and $9 on Sunday. Children 11 and under are FREE. Parking is FREE. Tickets can be purchased online HERE.#3) Wilmington Middle School Drama Club’s “Seussical The Musical”The Wilmington Middle School Drama Club presents its spring musical, “Seussicial The Musical” on Thursday, March 21, 2019 (7pm); Friday, March 22, 2019 (7pm); and Saturday, March 23, 2019 (1pm) in the Wilmington Middle School Auditorium. Come enjoy the story of Horton and some of our favorite Dr. Seuss characters. Tickets are available at the door. Tickets cost $10 for adults and $7 for students (12 and under).#4) Comedy Show To Benefit Shawsheen Tech SeniorsThe Dollie Tremblay Community Fund has organized a comedy show at the Billerica Elks (14 Webb Brook Road, Billerica). Doors open at 6:30pm. The show begins at 7:30pm.The evening will feature four hilarious comedians, including Wilmington’s Steve Bjork, Jason Merrill, Maya Manion, and Mike Hanley.Tickets cost $20. Tables are 10 are available. To purchase tickets, contact Joe at 978-663-3461 or Marie at 978-479-2668. Bring your own snacks and cash for the raffle table. Cash bar.Proceeds to benefit the David M. Dutile “Tools for Students” Scholarships awarded to graduates of the Shawsheen Tech Class of 2019.#5) Dick’s Sporting Goods Shop Event For Wilmington Little League FamiliesDick’s Sporting Goods is offering Wilmington Little League families 20% off throughout the store on Saturday, March 23, 2019 and Sunday, March 24, 2019.  This coupon is valid at the store’s Davners, Saugus, and Salem, NH locations.Like Wilmington Apple on Facebook. Follow Wilmington Apple on Twitter. Follow Wilmington Apple on Instagram. Subscribe to Wilmington Apple’s daily email newsletter HERE. Got a comment, question, photo, press release, or news tip? Email wilmingtonapple@gmail.com.Share this:TwitterFacebookLike this:Like Loading… Related5 Things To Do In Wilmington On Tuesday, August 20, 2019In “5 Things To Do Today”SAVE THE DATE: Huge Train Show Coming To Shriners Auditorium On November 23-24In “Community”5 Things To Do In Wilmington On Saturday, August 3, 2019In “5 Things To Do Today”last_img read more

Netflix alternative Tubi TV begins global expansion

first_img See it Disney Plus: Preorders, launch dates, prices, movies and shows to expect Apple TV Plus: Everything to know about Apple’s planned streaming service 10 best free movie streaming services: Netflix alternatives for 2019 10 best free movie and TV streaming services Amazon Google Netflix Samsung Apple Apple See It Apple 2019 movies to geek out over Best Buy Preview • Apple TV 4K: New $179 Apple streamer adds HDR, better gaming Aug 31 • iPhone 11, Apple Watch 5 and more: The final rumors • Mentioned Above Apple TV 4K (32GB) See It See It Crutchfield Aug 31 • Verizon vs AT&T vs T-Mobile vs Sprint: Choose the best 5G carrier Apple TV 4K TV and Movies Media Streamers Mobile Apps Mobile Australia is the first of many global launches for Tubi. Tubi Netflix alternative Tubi has announced its expansion to Australia. The US-based video streaming service will launch in Australia on Sunday and will be free and ad-supported. There’s going to be 7,000 movies and TV series at launch, Tubi said Thursday. Headquartered in San Francisco, Tubi joins the streaming services already available in Australia including Netflix, Stan and Foxtel Now. Disney Plus and Apple TV Plus are set to launch down under later this year, too.At launch, Tubi will have movies and series like The Blair Witch Project, Kickboxer and Stranger Than Fiction. It said “many more titles” will be added later, including The Grudge, Dirty Dancing, Reservoir Dogs and Saw. It already claims the largest free streaming selection in Australia, but aims to hit 15,000 titles.Australia is “the first of many launch initiatives to advance our global footprint,” said Tubi CEO Farhad Massoudi.Customers can use a Telstra TV, Tubi.TV, Samsung smart TVs, Google Chromecast, Apple TV, Amazon Fire TV, phones, tablets and gaming consoles to access the service.In June, Tubi announced that it passed 20 million monthly active users in the US. Stateside, it offers 15,000 movies and TV shows including content across Lionsgate, Warner Bros, NBCUniversal, MGM and Paramount.center_img CNET may get a commission from retail offers. 2:38 $179 Aug 31 • Your phone screen is gross. Here’s how to clean it 77 Photos Read more on streaming services reading • Netflix alternative Tubi TV begins global expansion Tags Share your voice Review • Apple TV 4K review: The best TV streamer keeps getting better $169 See All $179 Comment 1 Now playing: Watch this: $179 Aug 31 • Apple iPhone 11 launches Sept. 10, Disney Plus in big demandlast_img read more

Mexico Brutal cartels fight over conflictfree gold revenues

first_img Heroin traffickers linked to the abduction and disappearance of 43 students a year ago are battling over millions of dollars paid by Canadian mining giant Goldcorp to a village in Mexicos southern gold belt, leading to a wave of murders.As a signatory to a Conflict-Free Gold Standard drawn up by the World Gold Council industry group, Goldcorp commits to extracting the precious metal in a manner that does not fuel unlawful armed conflict or contribute to serious human rights abuses. But residents of Carrizalillo in the impoverished state of Guerrero say the some $3m (£2m) a year in rent paid by Goldcorp for their land, which the mine is built on, is fuelling a bloody feud between two rival cartels. Village authorities say the company is not doing all it can to protect them.Juan Jesus Canaan, an activist who explores clandestine graves in search of missing people, said the presence of Los Filos mine and the wealth generated by it brings crime and drug addiction. Gold brings bonanza but it also brings other things with it. It brings crime, drug addiction, a lot of things. The villages economy, from this place and others, revolves around the mine, Canaan said.Some homes in Carrizalillo are scarred with bullet holes and broken windows after a series of assaults in the past year, some involving dozens of masked men firing automatic weapons. Authorities describe a struggle between two gangs – Guerreros Unidos and Los Rojos – over the mineral wealth that has split Carrizalillo into two factions, fanning chaos. The Guerreros Unidos gang is the primary suspect in the disappearance and apparent murder of 43 students last year, a case which has drawn international attention and fierce criticism of President Enrique Pena Nietos government.Carrizalillo villagers describe systematic extortion by both cartels. Each side accuses the other of supporting a rival cartel with the alleged backing of different state and federal security forces. At least 26 people have been killed since the feud escalated in mid-2014. Still, villagers welcome the wealth generated by the mine and have negotiated to maximize their benefits. Protests closed the mine for a month last year until Goldcorp agreed to more generous terms.Landholders say that under the May 2014 deal, Goldcorp pays the equivalent of 4oz of gold per hectare in rent to 175 landholders and a communal land fund – an estimated $3m a year at todays prices, which is a small fortune for a village of around 1,000. Goldcorp recognises that its Los Filos is operating in a conflict-affected or high-risk area, but federal police commissioner Enrique Galindo said that Goldcorp has not raised any alarms with police over potential risk at the mine.This mine in particular, I have spoken to the director and the chief of security of the mine. They did not report any risk situations. Those who present them is the community, due to the things we have explained.But the business, the mine, as an income generating area, has not presented, at least not to us as we have not been required, as being in a situation of risk, Galindo said.Some Carrizalillo villagers say they want Goldcorp to fund police and military checkpoints and patrols along the short stretch of road between the heavily guarded mine and the unprotected village, but Goldcorp says it is doing as much as it can.Goldcorps gold mining activities have been certified as conflict-free. Under the standard, companies operating in conflict zones must use their influence to avoid abuses by security forces and make them protect local populations. Closelast_img read more

Man killed in Coxs Bazar gunfight

first_img.An accused of a rape case was killed in a reported gunfight with members of Rapid Action Battalion (RAB) in Kurushkul area of Sadar upazila of Cox’s Bazar early Tuesday, reports news agency UNB.The deceased was identified as Selim, 22.He was accused in several cases including a rape case filed in connection with a violating 3-year-old girl in the upazila on 23 August.Major Ruhul Amin, commanding officer of RAB-7, said that a team of RAB arrested Selim from Natun Fishery Ghat area adjacent to airport on Monday evening.Later, the team conducted a drive along with Selim in Kurushkul area around 2:00 am to arrest his associates and recover arms.When the team reached the spot, his associates opened fire on the elite force, prompting them to retaliate that triggered a gun fight.At one stage, Selim was caught in the line of fire and died on the spot while his associates managed to flee the scene.The law enforcers recovered a foreign pistol and a one-shooter gun.last_img read more

Quader insists constitution stipulates polltime govt formula

first_imgAwami League general secretary Obaidul Quader addresses a programme of distributing warm cloths among the destitute at party`s headquarters at Bangabandhu Avenue in the capital. Photo: Focus BanglaIn response to BNP’s allegation that the prime minister’s remark regarding constitutional provision for a poll-time government is misleading, ruling Bangladesh Awami League (AL) general secretary Obaidul Quader on Monday insisted that the constitution stipulates the formula of the election-time government.“Everything is in the constitution. BNP itself is in confusion over the election-time government,” Quader told a programme in front of the party’s headquarters at Bangabandhu Avenue in the capital.The party organised the programme to distribute warm clothes among the destitute.The ruling party general secretary emphatically said his party would not go beyond constitutional provision with regard to the formation of the election-time government.“I’m clearly stating that we’ll not be able to go beyond the constitution.”The AL leader alleged that his party’s rival Bangladesh Nationalist Party (BNP) is not giving any “clear position on the next general elections”.“BNP hasn’t given any framework of election-time government as yet. It can give an outline as to what it wants. AL had expected that BNP will give at least a framework of poll-time government.”Also the road transport and bridges minister, Quader said BNP is time and again referring to the controversial 5 January 2014 elections.“There is nothing wrong with democracy here. It’s rather BNP’s political mistake. And that’s why, the issue of uncontested election of MPs comes.”The AL leader claimed that the BNP is in a deep despair.“No matter whatever the prime minister says, BNP’s stand is like a proverb: Faults are thick where love is thin [you find everything wrong with a person whom you do not like].”In a televised address to the nation marking the completion of her government’s four years in office after the controversial 5 January 2014 national elections, AL president and PM Sheikh Hasina on 12 January said an election-time government would be formed as per the constitution which would provide “all-out cooperation” to the election commission to conduct the election.The next day, the BNP said Hasina’s remark about the election-time government is misleading as there is no provision in the current constitution to form such an administration.last_img

Indias lowcaste workers create Mumbai chaos

first_imgMany businesses in the Indian financial hub of Mumbai closed on Wednesday as protesters from a low-caste community blocked traffic and shopping malls and staged sit-ins on railway lines after clashes with right-wing Hindus.The call for a general strike across the western state of Maharashtra led to largely peaceful protests, but life in many parts of Mumbai was disrupted with Dalits pelting buses with stones and deflating tires in some areas. Railway lines and some major roads leading into the city were blocked.The Dalits, who rank at the bottom in India’s ancient caste hierarchy, called the strike in protest against attacks from right-wing groups in the city of Pune on Monday. The strike shut businesses and schools in Mumbai and other cities across the state.“The government didn’t arrest the perpetrators of violence in Pune. Hindu group members were beating Dalits and the police were just watching from afar,” said protester Sandeep Kamble. “We are demanding the arrest of the culprits.”The protest came a day after thousands of Dalits hurled stones and caused traffic disruption across Mumbai. Dalits have been ostracized by upper-caste Hindus for centuries for jobs they deemed as impure, such as garbage pickers and tannery workers.Those protests followed celebrations by Dalits in Pune, 150 km (95 miles) from Mumbai, on the 200th anniversary of a battle they won, fighting alongside British colonial forces, against an upper-caste ruler. Those celebrations were disrupted by right wing Hindu groups and a 28-year-old man was killed in the clashes, according to the state government.In parts of the Mumbai suburb of Thane, officials banned the assembly of crowds, small or large, to control protesters, who disrupted road and rail services during the morning rush hour.Schools were closed in some cities and internet service was down in places to restrict social media access and the spread of rumors.Fleet taxis, along with cab hailing services like Uber and Ola, were also largely off the roads in Mumbai on Wednesday. Several offices asked employees to work from home.last_img read more

Fire destroys 2 Jashore jute mill godowns

first_imgA fire broke out at two godowns of a jute mill in Chengunia area of Abhaynagar upazila on Thursday afternoon, reports UNB.The fire began from an electric short circuit around 2:30pm at a warehouse of Roman Jute Mill in the area, said Wadud Hossain, assistant director of Jashore fire services and civil defence.The fire soon spread to a nearby yarn godown, he said.Around 3-4 maunds of raw jute and 40 tonnes of yarn were gutted in the fire, claimed Mohammad Ali Kasari, the owner of the mill.On information, two firefighting units from Abhaynagar and Jashore rushed to the spot and brought the flame under control after 45 minutes’ effort, said Wadud.The loss incurred due to the fire could not be known immediately.last_img read more

India expels first group of Rohingya refugees

first_imgSahidullah, a man from the Rohingya community, holds his son on his lap as he speaks with Reuters inside his shack at a camp on the outskirts of Jammu on 5 October 2018. Photo: ReutersHours after Indian TV channels flashed that the country was deporting seven Rohingya Muslims to Myanmar, Sahidullah said he received a call from his nephew: “Uncle, please get us out of here. They will send us back too.”Sahidullah, a Rohingya living in the far north of India after fleeing what he called persecution in Buddhist-majority Myanmar in 2010, said his relative, Sadiur Rahman, 40, was lodged in one of several detention centres for illegal immigrants in the distant northeastern state of Assam.Rahman, he said, had been incarcerated with his brother and eight other relatives since being caught in 2012 at a railway station as they fled to India via Bangladesh. Sahidullah had taken the same route two years earlier, but like many others had escaped detection.He said Rahman made the phone call when he was taken out for a routine medical checkup on 3 October, the day when India moved the seven Rohingya men out of a similar detention centre and took them to the border.They were handed to the Myanmar authorities the next day, the first ever such deportations of Rohingya here, spreading panic among an estimated 40,000 refugees who have fled to India from its neighbour.About 16,500 of the refugees, including Sahidullah, have been issued identity cards by the United Nations High Commissioner for Refugees (UNHCR) that it says helps them “prevent harassment, arbitrary arrests, detention and deportation”.India says it does not recognise the cards and has rejected the UN’s stand that deporting the Rohingya violates the principle of refoulement – sending back refugees to a place where they face danger.”Anyone who has entered the country without a valid legal permit is considered illegal,” said A. Bharat Bhushan Babu, a spokesman for the Ministry of Home Affairs. “As per the law, anyone illegal will have to be sent back. As per law they will be repatriated.”In recent days, Reuters interviewed dozens of Rohingya in two settlements, one in the northern city of Jammu and a smaller one in the capital, Delhi, and found communities who feel they are being increasingly vilified.Many now fear prime minister Narendra Modi’s Hindu nationalist government is about to act on its stated position – that it wants to deport all Rohingya Muslims from the country. With a general election due by next May, they worry that targeting them will be a populist tactic used by Modi and his allies.Hatred GrowingSahidullah – who like many Rohingya goes by only one name – is not just worried about his detained relatives but also his family living in a mainly Hindu region of India’s only Muslim-dominated state, Jammu & Kashmir, in the country’s northern tip.The restive Himalayan state that borders Pakistan and is home to Muslim separatists battling Indian rule, has the biggest population of Rohingya in the country with around 7,000 people scattered in various makeshift settlements, largely in the Jammu region.”We came to India because people told us things were better here, there’s more work and one could move freely unlike back home,” said Sahidullah, who works as a cleaner at a car showroom in Jammu city to support his aging amnesiac mother, wife and four children.”All that’s true and we are thankful to India for letting us live here. But hatred against us is growing,” he told Reuters as he sat on a colourful linen sheet laid on the floor of his self-made wood and plastic-sheet house built on a rented plot of land.Mohammed Arfaat, a 24-year-old Rohingya youth leader in Jammu, said that locals often accuse them of having links with militants without any proof.”They want us out of here and that has got our families worried,” said Arfaat, switching between English and Hindi as nearly a dozen community elders seated around him on the rough concrete floor of a Rohingya house started leaving for Friday prayers. “Everybody here is aware of the deportation and is afraid.”Indian authorities said that the repatriation of the seven was a routine procedure and that it sends all illegal foreigners back home.But the UNHCR voiced deep concern on Friday about the safety and security of those expelled, saying they had been denied access to legal counsel and a chance to have their asylum claims assessed.”Current conditions in Myanmar’s Rakhine state are not conducive for safe, dignified and sustainable return of stateless Rohingya refugees,” said UNHCR spokesman Andrej Mahecic.Most Rohingya used to live in Rakhine.In August last year, attacks by Rohingya fighters on security posts in Rakhine led to a bloody military crackdown that caused around 700,000 Rohingya to flee across the border to Bangladesh.The United Nations has accused Myanmar of acting against the Rohingya with “genocidal intent,” a charge Myanmar refutes, saying its military did not use excessive force and was reacting to militant attacks.Increasingly UglyThe atmosphere facing the Rohingya in India has been getting increasingly ugly.Jammu’s Chamber of Commerce & Industry last year threatened to launch an “identify and kill movement” against the settlers, which it said pushed the government into taking the issue of Rohingya more seriously.The chamber’s president, Rakesh Gupta, told Reuters on Friday that there was nothing new in taking the law into one’s hands if “someone becomes a threat to our security, to the nation’s security, and the security forces don’t tackle them”.In some of the more virulent parts of India’s media, the Rohingya are not only accused of being terrorists but also of trafficking in drugs and humans, and of having the money to elbow out local businesses.The Pioneer newspaper, which supports Modi’s ruling Bharatiya Janata Party (BJP), said in an editorial on Saturday that “the Rohingya are a problem”, declaring that those that are radicalised Islamist extremists need to be dealt with ruthlessly and the rest are economic migrants that India cannot afford to help.India, which considers itself a victim of Islamist militancy and is trying to boost economic ties with Myanmar to counter China, said late last year that it shared Myanmar’s concern about “extremist violence” by Rohingya militants.India’s home ministry has told the Supreme Court that it had reports from security agencies and other authentic sources “indicating linkages of some of the unauthorised Rohingya immigrants with Pakistan-based terror organisations and similar organisations operating in other countries”.”It’s definitely an election issue,” said Kavinder Gupta, a BJP legislator in Jammu & Kashmir and former deputy chief minister of the state.”It’s our decision to throw them out keeping in mind the security situation of the state,” he told Reuters on the sidelines of a campaign meeting for municipal elections. “We have made the home ministry aware of the need to send them back to their country.”Senior Jammu police officials said on condition of anonymity that they had identified all Rohingya in the area in preparation for their eventual deportation. They added they had not found any link of Rohingya with militants.Around 600 km (370 miles) south of Jammu, residents of a makeshift refugee camp in Delhi’s Shaheen Bagh also said they fear deportation.”We don’t want to leave India. Where will we go?” said Mohammed Harun, a 47-year-old Rohingya elder in Delhi. “There are refugees from other countries in India too. Why are we being targeted? Why do they send us to jail? It is only because we are Muslims. They don’t do this to the other refugees.”last_img read more

Patrick Kolkhorst Unveil Controversial Bathroom Bill

first_imgTexas lawmakers unveiled plans today to ban transgender people from using the restroom of their choice. The controversial “bathroom bill” is a top priority for some GOP leaders.State Senator Lois Kolkhorst formally sponsored the bill, officially known as SB 6. She announced details at a press conference at the State Capitol, while Lieutenant Governor Dan Patrick, a major supporter, looked on.“Every Texan has the right to personal privacy, and these penalties protect all Texans equally,” Kolkhorst said.The bill would also apply changing rooms and locker rooms. It would penalize school districts that let transgender individuals use the facilities of their choice. And it would bar local governments from adopting their own ordinances.Patrick has made the bill a top goal for the session, but House Speaker Joe Straus says it’s not a priority.“Governor Abbott has also been largely silent on the matter but generally is pretty sensitive to business interests,” says Brandon Rottinghaus, who teaches political science at the University of Houston. “And if it’s the case that this has the potential to hurt Texas’ bottom line, then I could imagine Abbott being against it.”The Texas Association of Business estimates that anti-LGBT legislation could cost the Texas economy $8.5 billion and 185,000 jobs. 00:00 /01:08 To embed this piece of audio in your site, please use this code: Listen X Sharelast_img read more

Scientists achieve perfect efficiency for watersplitting halfreaction

first_imgUnder visible light illumination, the nanoscale photocatalysts perform the water-splitting reduction half-reaction with 100% efficiency. Credit: Lilac Amirav, Technion-Israel Institue of Technology The researchers, Philip Kalisman, Yifat Nakibli, and Lilac Amirav at the Technion-Israel Institute of Technology in Haifa, Israel, have published a paper on the perfect efficiency for the water reduction half-reaction in a recent issue of Nano Letters.”I strongly believe that the search for clean and renewable energy sources is crucial,” Amirav told Phys.org. “With the looming energy crisis on one hand, and environmental aspects, mainly global warming, on the other, I think this is our duty to try and amend the problem for the next generation. “Our work shows that it is possible to obtain a perfect 100% photon-to-hydrogen production efficiency, under visible light illumination, for the photocatalytic water splitting reduction half-reaction. These results shatter the previous benchmarks for all systems, and leave little to no room for improvement for this particular half-reaction. With a stable system and a turnover frequency of 360,000 moles of hydrogen per hour per mole of catalyst, the potential here is real.”When an H2O molecule splits apart, the three atoms don’t simply separate from each other. The full reaction requires two H2O molecules to begin with, and then proceeds by two separate half-reactions. In the oxidation half-reaction, four individual hydrogen atoms are produced along with an O2 molecule (which is discarded). In the reduction half-reaction, the four hydrogen atoms are paired up into two H2 molecules by adding electrons, which produces the useful form of hydrogen: H2 gas. (Left) Transmission electron microscope images of the nanorod photocatalysts with (a) one and (b) two platinum tips. (Right) A comparison of the efficiencies shows the advantage of using a single platinum tip. Credit: Kalisman, et al. ©2016 American Chemical Society Journal information: Nano Letters (Phys.org)—Splitting water is a two-step process, and in a new study, researchers have performed one of these steps (reduction) with 100% efficiency. The results shatter the previous record of 60% for hydrogen production with visible light, and emphasize that future research should focus on the other step (oxidation) in order to realize practical overall water splitting. The main application of splitting water into its components of oxygen and hydrogen is that the hydrogen can then be used to deliver energy to fuel cells for powering vehicles and electronic devices. Explore further In the new study, the researchers showed that the reduction half-reaction can be achieved with perfect efficiency on specially designed 50-nm-long nanorods placed in a water-based solution under visible light illumination. The light supplies the energy required to drive the reaction forward, with the nanorods acting as photocatalysts by absorbing the photons and in turn releasing electrons needed for the reaction. Citation: Scientists achieve perfect efficiency for water-splitting half-reaction (2016, February 26) retrieved 18 August 2019 from https://phys.org/news/2016-02-scientists-efficiency-water-splitting-half-reaction.html Clean energy from water © 2016 Phys.org The 100% efficiency refers to the photon-to-hydrogen conversion efficiency, and it means that virtually all of the photons that reach the photocatalyst generate an electron, and every two electrons produce one H2 molecule. At 100% yield, the half-reaction produces about 100 H2 molecules per second (or one every 10 milliseconds) on each nanorod, and a typical sample contains about 600 trillion nanorods.One of the keys to achieving the perfect efficiency was identifying the bottleneck of the process, which was the need to quickly separate the electrons and holes (the vacant places in the semiconductor left after the electrons leave), and remove the holes from the photocatalyst. To improve the charge separation, the researchers redesigned the nanorods to have just one platinum catalyst instead of two. The researchers found that the efficiency increased from 58.5% with two platinum catalysts to 100% with only one.Going forward, the researchers plan to further improve the system. The current demonstration requires a very high pH, but such strong basic conditions are not always ideal in practice. Another concern is that the cadmium sulfide (CdS) used in the nanorod becomes corroded under prolonged light exposure in pure water. The researchers are already addressing these challenges with the goal to realize practical solar-to-fuel technology in the future.”We hope to implement our design rules, experience and accumulated insights for the construction of a system capable of overall water splitting and genuine solar-to-fuel energy conversion,” Amirav said. “The photocatalytic hydrogen generation presented here is not yet genuine solar-to-fuel energy conversion, as hole scavengers are still required. CdS is unfortunately not suitable for overall water splitting since prolonged irradiation of its suspensions leads to photocorrosion. We have recently demonstrated some breakthrough on this direction as well. The addition of a second co-catalyst, such as IrO2 or Ru, which can scavenge the holes from the semiconductor and mediate their transfer to water, affords CdS-based structures the desired photochemical stability. I believe this is an important milestone.” More information: Philip Kalisman, et al. “Perfect Photon-to-Hydrogen Conversion Efficiency.” Nano Letters. DOI: 10.1021/acs.nanolett.5b04813 This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more