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The Artificial Leaf

SprMorn 添加于 2012/5/24 16:05:40  2070次阅读 | 1次推荐 | 0个评论

To convert the energy of sunlight into chemical energy, the leaf splits water via the photosynthetic process to produce molecular oxygen and hydrogen, which is in a form of separated protons and electrons. The primary steps of natural photosynthesis involve the absorption of sunlight and its conversion into spatially separated electron–hole pairs. The holes of this wireless current are captured by the oxygen evolving complex (OEC) of photosystem II (PSII) to oxidize water to oxygen. The electrons and protons produced as a byproduct of the OEC reaction are captured by ferrodoxin of photosystem I. With the aid of ferrodoxin–NADP+ reductase, they are used to produce hydrogen in the form of NADPH. For a synthetic material to realize the solar energy conversion function of the leaf, the light-absorbing material must capture a solar photon to generate a wireless current that is harnessed by catalysts, which drive the four electron/hole fuel-forming water-splitting reaction under benign conditions and under 1 su...

作 者:Daniel G. Nocera*
期刊名称: American Chemical Society
期卷页: 第卷 第期 ~页
学科领域:化学科学 » 无机化学 » 无机合成和制备化学
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原文链接:http://pubs.acs.org/doi/abs/10.1021/ar2003013
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相关报道: http://paper.sciencenet.cn/htmlpaper/201252416114852624331.shtm
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