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A Wet Way to Better Burning? New catalyst uses energy in sunlight to generate hydrogen gas, a carbon-free fuel

A Wet Way to Better Burning? New catalyst uses energy in sunlight to generate hydrogen gas, a carbon-free fuel | Messenger for mother Earth | Scoop.it
Technology is always looking for ways to make it easier to be green. Now, researchers in New York state report creating a new long-lived catalyst that uses the energy in sunlight to generate hydrogen gas, a carbon-free fuel. With further improvements, the advance could lead to systems that use sunlight to split water molecules, generating a fuel that can power cars and trucks without emitting any greenhouse gases.

 

The idea of using sunlight to convert water into a fuel may sound fanciful. But plants do it: They capture photons of sunlight and use that energy to split water molecules into their constituents of hydrogen and oxygen ions. Pairs of hydrogen ions are then knitted together with a pair of electrons (swiped from the oxygen ions) to make hydrogen molecules (H2).

 

Researchers have actually mimicked this same reaction for many years, but the catalysts they use to do so have been either too expensive or too quick to break down. So the search has been on for cheaper, more rugged catalysts.

 

In the current study, reported online today in Science, researchers at the University of Rochester led by chemists Richard Eisenberg and Todd Krauss coated cadmium selenide nanoparticles with short organic chainlike molecules, abbreviated DHLA. This coating of DHLA chains allowed the nanoparticles to dissolve in water. And the individual chains were so short that they allowed the catalyst's nickel ions—also in the solution—to nuzzle close enough to the nanoparticles to grab the electrons and knit H2 molecules together. The Rochester team found that the catalysts were not only fast actors, knitting as many as 7000 H2 molecules every hour, but kept doing so for weeks on end without falling apart—a major advance over other H2-knitting catalysts.

 

Daniel DuBois, a chemist and hydrogen catalyst designer recently retired from the Pacific Northwest National Laboratory in Richland, Washington, calls the new work "a very nice contribution to the area" and says he's particularly impressed with the catalyst's durability. Even so, the new light harvester-catalyst combo isn't quite ready for the real world. For their current experiment, the Rochester researchers didn't actually split water molecules to generate their hydrogen ions. Rather, they added vitamin C, which readily gives up hydrogen, to their solution. So the Rochester group still needs to show that their H2-making compounds will carry out the same reaction using water. If they do, they may give plants a run for their money in green technology.


Via Dr. Stefan Gruenwald
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The only thing we are worried about is nano particles, bc they can create cancer.

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Worst Case #Climate Change (2008 TED Talk) #video #extinction

In February 2008 I gave a talk at TED in Monterey CA. It was a TED-U talk for about 20 minutes. That talk was recorded but never posted online. The idea was ...
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#FF #Antarctic ice shelves #melting 70% faster, study shows #climate #extinction

#FF #Antarctic ice shelves #melting 70% faster, study shows #climate #extinction | Messenger for mother Earth | Scoop.it
The frozen fringes of western Antarctica have been melting 70% faster in the last decade, raising concern that an important buttress keeping land-based ice sheets from flowing to the sea could collapse or vanish in coming decades, a new study shows.
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#FF #Antarctic ice shelf thinning speeds up #melting #climate #methane

#FF #Antarctic ice shelf thinning speeds up #melting #climate #methane | Messenger for mother Earth | Scoop.it
Eighteen years of satellite data reveal an acceleration in the thinning of many of Antarctica's floating ice shelves.

Via Wildcat2030
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Widely Used #Monsanto #Herbicide Linked to #Cancer

Widely Used #Monsanto #Herbicide Linked to #Cancer | Messenger for mother Earth | Scoop.it
The World Health Organization's research arm declares glyphosate a probable carcinogen. What's the evidence?
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#deceit #disinfo #Fossil fuel firms are still bankrolling #climate denial lobby groups

#deceit #disinfo #Fossil fuel firms are still bankrolling #climate denial lobby groups | Messenger for mother Earth | Scoop.it
BP has withdrawn support to Alec, a group known for misrepresenting climate science, but appearances can be deceptive.
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So #Monsanto #Roundup “probably” causes #cancer. This means what, exactly?

So #Monsanto #Roundup “probably” causes #cancer. This means what, exactly? | Messenger for mother Earth | Scoop.it
If your circle of friends and acquaintances is anything like mine, you’ve already heard by now that the World Health Organization just classified glyphosate — the active ingredient in the herbicide Roundup — as a probable carcinogen.
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Naomi #Klein: Let's kick oil while the price is down #climate & predatory #US #capitalism

Naomi #Klein: Let's kick oil while the price is down #climate & predatory #US #capitalism | Messenger for mother Earth | Scoop.it
Climate change should be a catalyst for a major change, but we're not treating it as a real emergency. Naomi Klein believes that capitalism is at war with the climate, but she says sometimes it gives us a gift – the sudden drop in oil prices.
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African #elephants could be extinct in wild within decades say experts #extinction

African #elephants could be extinct in wild within decades say experts #extinction | Messenger for mother Earth | Scoop.it
The Africa Elephant Summit being held in Botswana hears of alarming drop in numbers due to poaching African elephants could be extinct in the wild within a few decades, experts warned at a major conservation summit in Botswana that highlighted an...
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#US biggest #climate skeptic receives money from ‘eco-friendly’ #BP – report

#US biggest #climate skeptic receives money from ‘eco-friendly’ #BP – report | Messenger for mother Earth | Scoop.it
One of America’s most powerful opponents of climate change regulation, Senator Jim Inhofe, has been receiving campaign money traced back to oil giant BP, including chief executive Bob Dudley.
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#toxic #Shell oil drilling in #Arctic set to get US government permission #extinction

#toxic #Shell oil drilling in #Arctic set to get US government permission #extinction | Messenger for mother Earth | Scoop.it
Controversial decision expected from US interior secretary likely to spark protests from campaigners against Anglo-Dutch exploration in seas off Alaska The US government is expected this week to give the go-ahead to a controversial plan by Shell to...
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#FDA says #GMO bruise-resistant apples and potatoes are safe to eat. Based on what longterm results?

The FDA said this week that new varieties of genetically modified fruits and vegetables are safe for consumption, The New York Times reports. The safety review covered six varieties of potatoes...
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#Megadrought Risk Growing For United States, #Climate Models Show #science

#Megadrought Risk Growing For United States, #Climate Models Show #science | Messenger for mother Earth | Scoop.it
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#Climate change drove #Australia's record hot year, report finds

#Climate change drove #Australia's record hot year, report finds | Messenger for mother Earth | Scoop.it
Australia's hottest year on record would not have happened without climate change, according to a new report.
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#FF #Monsanto's Dream': Pro-#GMO DARK Act Comes to Congress #greenpeace #TTIP #Avaaz

#FF #Monsanto's Dream': Pro-#GMO DARK Act Comes to Congress #greenpeace #TTIP #Avaaz | Messenger for mother Earth | Scoop.it
The battle over genetically modified organisms, or GMOs, reached the U.S. capital on Wednesday when news broke that Kansas Republican Rep. Mike Pompeo will reintroduce a bill that blocks states from requiring GMO labeling.
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Deep Concerns as #Climate Influences Gulf Stream Flow

Deep Concerns as #Climate Influences Gulf Stream Flow | Messenger for mother Earth | Scoop.it
By Tim Radford, Climate News Network
Ocean scientists find evidence of an increasing slowdown in the Atlantic’s “invisible river” that could seriously affect weather and sea levels in the U.S.
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The real villains in #Australia's #renewables debacle? Three big energy companies | John Hewson

The real villains in #Australia's #renewables debacle? Three big energy companies | John Hewson | Messenger for mother Earth | Scoop.it
Extensive ‘advice’ from AGL, Energy Australia and Origin on the Renewable Energy Target has been a disaster – except for the companies’ profits Industry minister Ian Macfarlane would not have believed his luck when the clean energy council (CEC)...
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Industry experts say 70% #renewables possible across globe within 15 years

Industry experts say 70% #renewables possible across globe within 15 years | Messenger for mother Earth | Scoop.it
A global research initiative has concluded more than half of global energy participants believe that the electricity system can be 70% renewable by 2030.
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#Glyphosate "Probably" Carcinogenic to Humans’ Latest #WHO Assessment #Monsanto

#Glyphosate "Probably" Carcinogenic to Humans’ Latest #WHO Assessment #Monsanto | Messenger for mother Earth | Scoop.it
RT @GMWatch: Glyphosate ‘Probably Carcinogenic to Humans’ Latest WHO Assessment - background and Context http://t.co/yo4mh1dQBz #gmo
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Monsanto’s Roundup Responsible for Skyrocketing Rates of Celiac Disease, Gluten Intolerance and Other Wheat-Related Illnesses? | Food Democracy Now

Monsanto's Roundup Responsible for Skyrocketing Rates of Celiac Disease, Gluten In.. #GMOs #RightToKnow #GMO /fd http://t.co/WK219t4VHW
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#GMO #food pushers turn out to be the ones who are 'anti-science'

#GMO #food pushers turn out to be the ones who are 'anti-science' | Messenger for mother Earth | Scoop.it
GMO food pushers turn out to be the ones who are 'anti-science'

Via Ellen Diane
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Ellen Diane's curator insight, March 23, 1:22 PM

Let them eat corn!

Stuart Smith's curator insight, March 24, 6:11 PM

Interesting observation on who is supporting GM foods, Stuart

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#pollution 37,000 million litres of sewage flows into rivers daily #India

#pollution 37,000 million litres of sewage flows into rivers daily #India | Messenger for mother Earth | Scoop.it
Events around World Water Day, which is marked every year on March 22, may remind everyone about the implications of dwindling water reserves due to population pressure and pollution but the message is, somehow, lost in absence of adequate action...
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Top #China weather expert warns on #climate change

Top #China weather expert warns on #climate change | Messenger for mother Earth | Scoop.it
China's top weather official has issued a stark warning on climate change, saying that rising temperatures could have "huge impacts" on the world's most populous country, state media reported Sunday.
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#Paris Weighs Drastic Measures to Cope With #Smog : air #pollution

#Paris Weighs Drastic Measures to Cope With #Smog : air #pollution | Messenger for mother Earth | Scoop.it
Paris in the spring is lovely -- except when you can't breathe. Continue reading →
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Habitat fragmentation and its lasting impact on Earth’s ecosystems #science #forests

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Carbon pollution the cause of mass #extinction events #archeology #science #fossil fuels

Carbon pollution the cause of mass #extinction events #archeology #science #fossil fuels | Messenger for mother Earth | Scoop.it
A mass extinction is an event in the fossil record, a fossilised disaster if you like, in which a massive, globally widespread and geologically rapid loss of species occurred from numerous environm...
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