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Hydrogen


— Environment

U.S. Navy looking at obtaining fuel from seawater

By - September 26, 2012 3 Pictures
Tell someone that you’ve invented a car that runs on water and they're liable to report you for fraud. That hasn’t stopped scientists and engineers at the U.S.. Naval Research Laboratory (NRL) who want to run warships on seawater - or at least, to turn seawater into jet fuel. This may sound like they’ve been standing too close to the ether again, but the idea is to extract carbon dioxide and hydrogen from seawater and then convert these into jet fuel by a gas-to-liquids process. If this proves practical, American naval vessels could refuel themselves at sea. Read More
— Environment

New nanocrystals let solar panels generate electricity ... and hydrogen gas

By - August 28, 2012 2 Pictures
At first glance, photovoltaic solar panels are brilliant. They’re self-contained, need no fuel and so long as the sun is shining, they make lots of lovely electricity. The trouble is, they’re expensive to make, batteries are poor storage systems for cloudy days, and the panels have a very short service life. Now, Dr. Mikhail Zamkov of Ohio's Bowling Green State University and his team have used synthetic nanocrystals to make solar panels more durable as well as capable of producing hydrogen gas. Read More
— Science

Nanosheet catalyst brings a hydrogen economy one step closer to reality

By - July 27, 2012 3 Pictures
Harnessing the power of hydrogen gas presents one of the most promising options available for obtaining a large-scale sustainable energy solution. However, there are numerous and significant challenges present in the production of pure hydrogen, one of the most prominent of which is the high costs associated with the use of rare and expensive chemical elements such as platinum. Accordingly, the team at the Brookhaven National Laboratory set out to create a catalyst with high activity and low costs, that could facilitate the production of hydrogen as a high-density, clean energy source. Read More
— Environment

Street sweeper tests real-world feasibility of hydrogen-powered vehicles

By - March 13, 2012 5 Pictures
For the past couple of years, a street cleaning vehicle has been washing, brushing and vacuuming the streets of Basel in northwest Switzerland. While there’s nothing unusual about that, what is noteworthy is that the vehicle, known as the CityCat H2, is powered completely by hydrogen. The street sweeper is part of a project to practically test the feasibility of hydrogen-powered vehicles under real-world conditions and the results from the trial indicate that, although hydrogen-powered vehicles can save energy, are environmentally friendly, and technically feasible, the prices of fuel cells, pressurized storage tanks and electric drives must all drop significantly before such vehicles are cost-effective. Read More
— Science

Solar energy-harvesting “nanotrees” could produce hydrogen fuel on a mass scale

By - March 8, 2012 2 Pictures
While hydrogen is considered a “clean” fuel because the only waste product it generates is water, the conventional way to produce it relies on electricity, which is usually produced through the burning of fossil fuels. Researchers at the University of California, San Diego (UCSD), have now developed a “3D branched nanowire array” that they claim could cheaply and cleanly deliver hydrogen fuel on a mass scale. Read More
— Environment

HyperSolar harnesses sunlight to produce cleaner-than-clean hydrogen fuel

By - January 26, 2012 1 Picture
HyperSolar claims it is developing a zero carbon method of producing hydrogen gas from wastewater by harnessing solar energy. Hydrogen gas is a clean source of fuel in that, theoretically at least, the only waste product is water. But hydrogen gas does not occur naturally on Earth, and requires energy to create. Typically that energy comes from traditional, carbon dioxide-emitting sources, rendering hydrogen fuel rather less environmentally friendly than it has the potential to be. HyperSolar's work may mean truly clean, renewable hydrogen fuel could be a commercial reality sooner than we might have imagined. Read More
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