Scientists have developed a new and effective method for producing hydrogen fuel from sunlight and water. Researchers at the Swiss Federal Institute of Technology in Lausanne, Michael Greiger, developed hydrogen used to produce fuel, such as water through solar energy. To do this, they either use photoelectrochemical cells that directly decompose water into hydrogen and oxygen when exposed to sunlight, or they combine cells that generate electricity with electrolytic cells that separate water molecules. Through the use of a technology, the students of the post-doctoral students of Glengrave, Jingshan Luo and his colleagues are able to obtain impressive performance.
Their device converts each pair of perovskite-type absorbers to 12.3% hydrogen diffused by the sun's energy and can eliminate the need for compounds that are obtained from common materials such as those used in conventional car batteries. Hydrogen fuels used for the production of rare earth metals. This high efficiency provides a fierce competition for converting solar energy and other technologies, the researchers said. "Whether it is a perovskite used in batteries and electrodes composed of nickel, iron catalysts is demanding, on the earth, and it is also a cheap resource," Luo said.
"However, our working electrode is as expensive as a platinum-based model," Luo added. On the other hand, the conversion of solar energy into hydrogen makes it possible to store, which solves one of the biggest drawbacks of renewable energy generation that faces it, using it when it is generated. “Once you have hydrogen and store it in a bottle, you can use it to do whatever you want, as long as you want,” said Glechel. This gas can be burned in boilers or engines, releasing only water vapor. It can also be passed to fuel cells to generate electricity demand, the researchers said. They hope to achieve a conversion efficiency of 12.3% and will soon be higher.

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