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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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Carbon Control: What America’s New Climate Change Offensive Looks Like

Carbon Control: What America’s New Climate Change Offensive Looks Like | Messenger for mother Earth | Scoop.it
UPDATE: On June 23, the U.S. Supreme Court effectively upheld the Environmental Protection Agency's authority, under the Clean Air Act, to regulate carbon and
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#U2, Bono partner with #Monsanto to biowreck African farms with #GMO's #morons

#U2, Bono partner with #Monsanto to biowreck African farms with #GMO's #morons | Messenger for mother Earth | Scoop.it
by Rady Ananda – Activist Post At the G8 Summit held two weeks ago at Camp David, President Obama met with private industry and African heads of state to launch the New Alliance for Food Security and Nutrition, a euphemism for monocultured,...
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97 percent of #Australia #renewables investment dries up #coal #Abbott #corruption #climate

97 percent of #Australia #renewables investment dries up #coal #Abbott #corruption #climate | Messenger for mother Earth | Scoop.it
We're told “clean” energy is a viable and cost effective. But cut the government subsidies, and 97 percent of investors vanish (in Australia it's collapsed from $2.6b annually to $80m). The truth is that renewables are almost ...
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#Climate Failure: U.S. Passes Saudi Arabia As World's Largest Oil producer

#Climate Failure: U.S. Passes Saudi Arabia As World's Largest Oil producer | Messenger for mother Earth | Scoop.it
Is President Obama's “all of the above” energy policy a success? Or a climate failure? A report issued recently by Bank of America declared the United States has now surpassed Saudi Arabia as the world's largest oil producer ...
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#Climate Change Already Having Profound Impacts on Lakes in #Europe - National Geographic

#Climate Change Already Having Profound Impacts on Lakes in #Europe - National Geographic | Messenger for mother Earth | Scoop.it
National Geographic
Climate Change Already Having Profound Impacts on Lakes in Europe
National Geographic
For perspective on how climate change is affecting lakes, those of us here in the U.S.
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Planet’s Hottest June On Record Follows Hottest May #NOAA #science #climate

Planet’s Hottest June On Record Follows Hottest May #NOAA #science #climate | Messenger for mother Earth | Scoop.it
Last month was the warmest June since records began being kept in 1880, the National Oceanic and Atmospheric Administration (NOAA) reported Monday. That follows the warmest May on record.
Land and sea surface temperature percentiles in June 2014.
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#moron Senator: #Climate Change is Fake Because Mars is Warming Too #LOL

Earlier this month, Kentucky State Senator Brandon Smith (R-Hazard) argued that climate change on Earth is impossible because Mars is warming up and "we all agree" that Mars and Earth have...
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#Kauai needs more cash to defend #GMO, #pesticide law #Hawaii

#Kauai needs more cash to defend #GMO, #pesticide law #Hawaii | Messenger for mother Earth | Scoop.it
Kauai needs more cash to defend GMO, pesticide law
Sacramento Bee
LIHUE, Hawaii -- Kauai's county attorney has asked the county council for more money to defend a new law regulating genetically engineered crops and pesticides.
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how corporations win? Spending more money than the good people!

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#FF #rhinos 50 million years on Earth....Disappearing in 6?! #extinction #greed

#FF #rhinos 50 million years on Earth....Disappearing in 6?! #extinction #greed | Messenger for mother Earth | Scoop.it
If the current rate of poaching continues, rhinos in the wild will be extinct by 2020. That is just 6 years away! According to Will Travers, chief executive of the Born Free Foundation, "There will...
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#Australia repeals carbon tax, scientists freak out #coal #greed #oligarchy takes over #FF

#Australia repeals carbon tax, scientists freak out #coal #greed #oligarchy takes over #FF | Messenger for mother Earth | Scoop.it
The cartoonish stereotype of Australia of yesteryear featured a rough-headed bloke in an Akubra hat wrangling crocodiles. That image has finally been scrubbed from our collective memories – only to be replaced with something worse.
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#FF Conclusive Link Between #GMO's and #Cancer | #Brainwash #video

Abby Martin goes over the publication of a study on how genetically modified foods (GMOs) affect living organisms, as well as the pushback the study received...
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#Climate Scientists See 'Very Rapid Declines' in Annual #NOAA Report #FF

#Climate Scientists See 'Very Rapid Declines' in Annual #NOAA Report #FF | Messenger for mother Earth | Scoop.it
NBCNews.com Climate Scientists See 'Very Rapid Declines' in Annual NOAA Report NBCNews.com Leading climate scientists on Thursday issued their annual physical of Earth, comparing the planet in 2013 to a patient that's only getting worse and...
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Forest fires in #Canada confirm predictions of ‘unprecedented’ wildfire activity #climate

Forest fires in #Canada confirm predictions of ‘unprecedented’ wildfire activity #climate | Messenger for mother Earth | Scoop.it
Originally published at Climate Central
For the past few weeks, dry and warm weather have fueled large forest fires across Canada’s remote Northwest Territories.
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#Germany claims first place as the US misses a spot in the top 10 most energy efficient major economies

#Germany claims first place as the US misses a spot in the top 10 most energy efficient major economies | Messenger for mother Earth | Scoop.it
A German wind farm. Creative Commons: Chris Zielecki, 2013
Germany is currently ranked as the most energy efficient major economy in the world according to a report from the American Council for an Energy-Efficient Economy.
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#Germany, #UK and #Poland top dirty 30 list of #EU #coal-fired power stations #climate

#Germany, #UK and #Poland top dirty 30 list of #EU #coal-fired power stations #climate | Messenger for mother Earth | Scoop.it
Environmental study highlights health affects from pollution, with Germany coming top, and the UK third in total coal consumption The UK and Germany lead a list of the EUs most polluting coal-fired power stations compiled by environmental...
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Steam from the sun: New sponge-like material converts 85% of #solar energy into steam

Steam from the sun: New sponge-like material converts 85% of #solar energy into steam | Messenger for mother Earth | Scoop.it

A new material structure developed at MIT generates steam by soaking up the sun. The structure — a layer of graphite flakes and an underlying carbon foam — is a porous, insulating material structure that floats on water. When sunlight hits the structure’s surface, it creates a hotspot in the graphite, drawing water up through the material’s pores, where it evaporates as steam. The brighter the light, the more steam is generated.

 

The new material is able to convert 85 percent of incoming solar energy into steam — a significant improvement over recent approaches to solar-powered steam generation. What’s more, the setup loses very little heat in the process, and can produce steam at relatively low solar intensity. This would mean that, if scaled up, the setup would likely not require complex, costly systems to highly concentrate sunlight.

 

Hadi Ghasemi, a postdoc in MIT’s Department of Mechanical Engineering, says the spongelike structure can be made from relatively inexpensive materials — a particular advantage for a variety of compact, steam-powered applications.

 

“Steam is important for desalination, hygiene systems, and sterilization,” says Ghasemi, who led the development of the structure. “Especially in remote areas where the sun is the only source of energy, if you can generate steam with solar energy, it would be very useful.”

 

Ghasemi and mechanical engineering department head Gang Chen, along with five others at MIT, report on the details of the new steam-generating structure in the journal Nature Communications.

 

Today, solar-powered steam generation involves vast fields of mirrors or lenses that concentrate incoming sunlight, heating large volumes of liquid to high enough temperatures to produce steam. However, these complex systems can experience significant heat loss, leading to inefficient steam generation.

 

Recently, scientists have explored ways to improve the efficiency of solar-thermal harvesting by developing new solar receivers and by working with nanofluids. The latter approach involves mixing water with nanoparticles that heat up quickly when exposed to sunlight, vaporizing the surrounding water molecules as steam. But initiating this reaction requires very intense solar energy — about 1,000 times that of an average sunny day.

 

By contrast, the MIT approach generates steam at a solar intensity about 10 times that of a sunny day — the lowest optical concentration reported thus far. The implication, the researchers say, is that steam-generating applications can function with lower sunlight concentration and less-expensive tracking systems.  


Via Dr. Stefan Gruenwald
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#Punk pioneer Patti Smith joins chorus of voices standing up for the #Arctic

#Punk pioneer Patti Smith joins chorus of voices standing up for the #Arctic | Messenger for mother Earth | Scoop.it
The “Godmother of Punk,” influential American musician, poet, writer and artist Patti Smith has pledged her support for the protection and preservation of the Arctic, adding her name to academic, political, artistic and activist luminaries from...
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Major Study: #Monsanto #GMO Corn Can Cause Damage to Liver and Kidneys, and Severe Hormonal Disruption

Major Study: #Monsanto #GMO Corn Can Cause Damage to Liver and Kidneys, and Severe Hormonal Disruption | Messenger for mother Earth | Scoop.it
Key study has passed through three peer reviews.
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#Wind declared cheapest energy source in #Denmark #renewables

#Wind declared cheapest energy source in #Denmark #renewables | Messenger for mother Earth | Scoop.it
Onshore wind is now the cheapest form of energy in Denmark, according to new analysis.
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Exclusive: First 5 Minutes Of #Food Documentary #GMO OMG its so healthy.

Exclusive: First 5 Minutes Of #Food Documentary #GMO OMG its so healthy. | Messenger for mother Earth | Scoop.it
nation.lk - The Nation Newspaper Exclusive: First 5 Minutes Of Food Documentary 'GMO OMG' Indie Wire (blog) Is food that has been genetically modified to withstand adverse weather conditions and insects, or to yield a greater crop, healthy for...
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Firestorm Erupts Over Transgenic Rice Study in Chinese Children #NWO #science #china

Firestorm Erupts Over Transgenic Rice Study in Chinese Children #NWO #science #china | Messenger for mother Earth | Scoop.it
Four-year-old trial, published last month, triggers outrage in Chinese media
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Mother Nature Goes Absolutely INSANE With A Sudden Hail Storm In #Russia #FF #climate

Mother Nature Goes Absolutely INSANE With A Sudden Hail Storm In #Russia #FF #climate | Messenger for mother Earth | Scoop.it
Beach-goers in Russia were surprised with a sudden hail storm when Mother Nature went absolutely insane.
The post Mother Nature Goes Absolutely INSANE With A Sudden Hail Storm In Russia appeared first on Banoosh.
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Mysterious Siberian Crater Found at "End of the World" May Portend #Methane #Climate Catastrophe

Mysterious Siberian Crater Found at "End of the World" May Portend #Methane #Climate Catastrophe | Messenger for mother Earth | Scoop.it

A mysterious crater almost the size of a football field discovered in a remote part of Siberia's Yamal peninsula known as the end of the world may have profound implications about the stability of Arctic methane  and catastrophic climate change.

 

"The striking puncture in the earth is believed to be up to 80 metres wide but its depth is not estimated yet. A scientific team has been sent to investigate the hole and is due to arrive at the scene on Wednesday.

 

The cause of its sudden appearance in Yamal - its name means the 'end of the world' in the far north of Siberia - is not yet known, though one scientific claim is that global warming may be to blame."

 

Russian experts have ruled out speculation that meteorite impact might have caused the crater. The crater was certainly not caused by a meteorite because it has no central crater but instead has a deep hole. Meteorite impacts have far too much energy to leave an open hole. (Note: I studied meteoritics for my first year of graduate school.)  Likewise any other extraterrestrial source would have far too much energy to leave an open hole. The impact site would be filled with ejecta.

 

It doesn't appear to be a sink hole because the hole is surrounded by a rim of ejected material. Genarally, sink holes don't have elevated rims because they are produced by collapse of surface material into a preexisting covered hole. The ejecta appears to have been produced by an explosion. This crater formed in one of Siberia's largest natural gas producing regions. Permafrost in this area is melting in response to the rapid warming of the Arctic.

 

The most likely cause of this crater is a methane explosion. See the update at at the end for a discussion that this crater was caused by the melting and collapse of an ice dome called a pingo. An Australian expert on Arctic landforms suggested pingo collapse created this crater, but Russian experts have not yet commented on his hypothesis.

 

Click headline to read more, view pix and graphic map of methane levels and watch video clip--


Via Chuck Sherwood, Senior Associate, TeleDimensions, Inc
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Thx to #moron #Abbott #Australia becomes first country to ban price on carbon #FF

Thx to #moron #Abbott #Australia becomes first country to ban price on carbon #FF | Messenger for mother Earth | Scoop.it
Australia became the first country to ban a price on carbon with the government’s repeal of the tax on the country’s biggest polluters.
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#FF New Trend: #Climate Optimists Say Climate Change Won't Be So Bad #fools #morons

#FF New Trend: #Climate Optimists Say Climate Change Won't Be So Bad #fools #morons | Messenger for mother Earth | Scoop.it
Don't worry, big guy; climate optimists say you'll be fine on a warming planet. We all have that crazy uncle who shows up at family reunions, trying to convince us that climate change isn't real and Barack Obama was born in ...
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#Australia's #renewables energy industry grinds to a halt #morons #Abbott

#Australia's #renewables energy industry grinds to a halt #morons #Abbott | Messenger for mother Earth | Scoop.it
Australia's investment in renewable energy all but dried up in the first half of 2014 amid uncertainty fuelled by the government's latest review of the mandatory target.
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