化学
催化作用
光系统II
钌
分解水
光化学
异喹啉
环境友好型
人工光合作用
氧气
太阳能燃料
光催化
光合作用
有机化学
生态学
生物化学
生物
作者
Lele Duan,Fernando Bozoglián,Sukanta Mandal,Beverly Stewart,Timofei Privalov,Antoni Llobet,Licheng Sun
出处
期刊:Nature Chemistry
[Springer Nature]
日期:2012-03-25
卷期号:4 (5): 418-423
被引量:1158
摘要
Across chemical disciplines, an interest in developing artificial water splitting to O(2) and H(2), driven by sunlight, has been motivated by the need for practical and environmentally friendly power generation without the consumption of fossil fuels. The central issue in light-driven water splitting is the efficiency of the water oxidation, which in the best-known catalysts falls short of the desired level by approximately two orders of magnitude. Here, we show that it is possible to close that 'two orders of magnitude' gap with a rationally designed molecular catalyst [Ru(bda)(isoq)(2)] (H(2)bda = 2,2'-bipyridine-6,6'-dicarboxylic acid; isoq = isoquinoline). This speeds up the water oxidation to an unprecedentedly high reaction rate with a turnover frequency of >300 s(-1). This value is, for the first time, moderately comparable with the reaction rate of 100-400 s(-1) of the oxygen-evolving complex of photosystem II in vivo.
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