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The use of nickel-molybdenum compounds of zinc turns water into hydrogen "artificial leaves"

According to foreign media reports, the scientists have developed the first practical artificial leaf, the leaf can turn light and water into hydrogen and oxygen energy. The leaves to simulate the process of photosynthesis in green plants turn water and sunlight into energy, this scientific research is a milestone on the production of sustainable energy. The research report published in the latest of a "chemical research" (Accounts of Chemical Research) magazine.

New equipment use cheap materials unlike early equipment which is made of expensive materials, and low-cost engineering and manufacturing processes. Daniel · G. Nocera who in charge of the research team, said: "One of the most important is to split water into hydrogen and oxygen." This artificial leaf has a sun collector which folded in between two films, the two films will generate oxygen and hydrogen. Immersed in a bottle of water in the sunlight, it will bubble up and release hydrogen, can be used in fuel cells to generate electricity. The self-sufficiency of the device can be made of electricity and fuel, it is very attractive for remote areas and developing countries. Nocera pointed out, the artificial leaves fulfilled the idea of ​​a famous Italian chemist, in 1912, predicted that scientists will one day reveal the plant esoteric secret.

The beginning of the design is to rely on some precious metals, such as platinum, also rely on some of the manufacturing process, which makes the high cost of artificial leaves. In order to make these devices can be more widely used, Nocera use the less expensive nickel-molybdenum compounds of zinc replacing the platinum catalyst. Cobalt thin film in the other surface of the blade will generate oxygen. Nocera pointed out that all of these materials are abundant on earth, unlike the rare and expensive platinum, and precious metal oxide and semiconductor materials used are others. He said: "By mid-century, there will be approximately 6 billion non-traditional users bring huge growth in energy demand, Therefore, one goal of this study is to provide solar to poor areas, artificial leaves invention will give the global community provide a most direct way to move towards a sustainable energy future. "

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