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Hydrogen

— Science

Solar-powered hydrogen generation using two of the most abundant elements on Earth

By - June 23, 2015 1 Picture

One potential clean energy future requires an economical, efficient, and relatively simple way to generate copious amounts of hydrogen for use in fuel-cells and hydrogen-powered vehicles. Often achieved by using electricity to split water molecules into hydrogen and oxygen, the ideal method would be to mine hydrogen from water using electricity generated directly from sunlight without the addition of any external power source. Hematite – the mineral form of iron – used in conjunction with silicon has shown some promise in this area, but low conversion efficiencies have slowed research. Now scientists have discovered a way to make great improvements, giving hope to using two of the most abundant elements on earth to efficiently produce hydrogen.

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— Environment

Audi just created diesel fuel from air and water

By - April 26, 2015 7 Pictures
Audi is looking to fuel the future without fossil fuels. One of the company's pilot plants in Germany has just produced the first batches of a synthetic diesel made using only water and air. The company's pilot plant, which is operated by German startup Sunfire, produced its first batches of the "e-diesel" this month. German Federal Minister of Education and Research Johanna Wanka put a few liters of the fuel in her work car, an Audi A8, to commemorate the accomplishment. Read More
— Science

Researchers produce hydrogen quickly and cheaply using plant waste

By - April 9, 2015 1 Picture
Hydrogen is the ideal gas for use in low-emissions combustion engine or fuel cell-powered vehicles, due to its almost non-existent greenhouse gas emissions. Production costs, however, are higher compared to gasoline and around 95 percent of it is currently produced, somewhat counter-intuitively, from fossil fuels. Now researchers at Virginia Tech claim to have created a method to produce hydrogen fuel using a biological technique that is not only cheaper and faster, but also produces hydrogen of a much higher quality ... and all from the leftover stalks, cobs, and husks of corn. Read More
— Space

Blue Origin's BE-3 engine cleared for flight

By - April 8, 2015 4 Pictures
Blue Origin has taken a step closer to lifting into space by announcing that its BE‑3 rocket engine has completed acceptance testing, opening the door to its first flight. The first new hydrogen engine to be developed in the US in over a decade, the BE-3 is part of Blue Origin's program to develop a completely reusable launch system. Read More
— Space

Mars may have had more water than the Arctic Ocean

By - March 9, 2015 2 Pictures
In Edgar Rice Burroughs's Barsoom novels, Earthman John Carter's adventures took place on the dry beds of Mar's ancient oceans. Now NASA scientist's say that may not be so far fetched. Though they haven't found signs of any thoats, they have estimated that Mars may once have had enough water to form a vast ocean surrounding its north pole of which only plains remain. Read More
— Automotive

Top 10 green concept cars of 2014

By - December 30, 2014 70 Pictures
Not only was 2014 a great year for sports concepts, it was a great year for green cars. Environmentally friendly production cars like the Toyota Mirai fuel cell vehicle and Volkswagen Golf GTE made their debuts and numerous concepts provided a window into a cleaner commuting future, showcasing technologies that will get us from point A to point B without so much impact on the rest of the alphabet. Here are our favorite green concept cars from the year. Read More
— Space

Rosetta sheds light on origin of Earth's oceans

By - December 11, 2014 5 Pictures
The oceans are a mystery in more ways than one, but you might not expect the answers to come from a pack of electronics and a comet. But that's what the European Space Agency (ESA) says about the unmanned Rosetta probe orbiting comet 67P/Churyumov–Gerasimenko. Though 67P is making its first visit to the inner Solar System and won't come closer to the Earth than hundreds of millions of miles, it is throwing new light on one of the fundamental questions in Earth's history: Where did the oceans come from? Read More
— Environment

Record efficiency for converting solar energy to hydrogen without rare metals

By - December 8, 2014 2 Pictures
Using solar energy to split water into its component parts, thereby allowing the solar energy to be stored as hydrogen fuel, generally involves one of two methods: using photoelectrochemical cells to directly split the water, or using solar cells to produce electricity to power an electrolyzer that separates the water molecules. One problem associated with the latter method is that it currently relies on rare metals. But now scientists from Ecole Polytechnique Federale de Lausanne (EPFL) in Switzerland have managed to do so using common materials, and have achieved a record solar energy to hydrogen conversion efficiency in the process. Read More

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