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首页> 外文期刊>Coordination chemistry reviews >Toward solar fuels: Water splitting with sunlight and 'rust'?
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Toward solar fuels: Water splitting with sunlight and 'rust'?

机译：迈向太阳能：水被阳光和“铁锈”分解？

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摘要

Iron(Ⅲ)oxide in the form of hematite is, in many respects, an attractive material for the photocatalytic production of molecular oxygen from water. Especially over the past six years, several developments have advanced the performance of water oxidation cells based on this material. Nevertheless, the best versions of these photoelectrodes produce only about a fifth of the maximum photocurrent (and dioxygen) theoretically obtainable, while operating at photovoltages also well short of the theoretical maximum. Here we describe the factors limiting the performance of hematite as a photo-catalyst and outline approaches that have been, or might be, tried to overcome them. These factors include low hole mobility, bulk charge recombination, surface charge recombination, slow water oxidation kinetics, and poor light absorption. Whether hematite will soon become a practical photo-catalyst for water oxidation is uncertain. But, the schemes developed and the lessons learned will likely prove transferrable to other candidate photocatalyst materials.
机译：在许多方面，赤铁矿形式的三氧化二铁是一种有吸引力的材料，可以从水中光催化生产分子氧。特别是在过去的六年中，基于这种材料的水氧化电池的性能得到了一些发展。然而，这些光电极的最佳版本仅产生理论上可获得的最大光电流（和双氧）的大约五分之一，而在光电压下的工作电压也远低于理论最大值。在这里，我们描述了限制赤铁矿作为光催化剂性能的因素，并概述了已经尝试或可能尝试克服的方法。这些因素包括低空穴迁移率，本体电荷复合，表面电荷复合，缓慢的水氧化动力学和不良的光吸收。赤铁矿能否很快成为水氧化的实用光催化剂尚不确定。但是，所开发的方案和所汲取的经验教训可能会证明可转移至其他候选光催化剂材料。

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  • 来源
    《Coordination chemistry reviews》 |2012年第22期|p.2521-2529|共9页
  • 作者

    Michael J. Katz; Shannon C. Riha; Nak Cheon Jeong; Alex B.F. Martinson; Omar K. Farha; Joseph T. Hupp;

  • 作者单位

    Argonne-Northwestern Solar Energy Research (ANSER) Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA,Dept. of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA;

    Argonne-Northwestern Solar Energy Research (ANSER) Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA,Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA;

    Argonne-Northwestern Solar Energy Research (ANSER) Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA,Dept. of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA;

    Argonne-Northwestern Solar Energy Research (ANSER) Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA,Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA;

    Argonne-Northwestern Solar Energy Research (ANSER) Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA,Dept. of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA;

    Argonne-Northwestern Solar Energy Research (ANSER) Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA,Dept. of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA,Chemical Science and Engineering Division, Argonne National Laboratory, Argonne, IL 60439, USA,Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    hematite; solar fuels; alternative energy;

    机译：赤铁矿太阳能;可替代能源;

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