Tantalum (oxy)nitride based photoanodes for solardriven water oxidation
Tantalum (oxy)nitride based photoanodes for solardriven water oxidation
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用于太阳能驱动水氧化的钽（氧）氮化物光阳极
DOI：
10.1039/c5ta07057k
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Hui-Ming Cheng
中科院分区：
文献类型：
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作者：
Chao Zhen;Runze Chen;Lianzhou Wang;Gang Liu;Hui-Ming Cheng
光电化学（PEC）分解水是一种非常有前途的制氢方法。为了实现实际应用所需的10%的太阳能到氢气（STH）的转换效率，PEC水裂解中当前的中心任务是开发用于PEC电池中的高效光电极，特别是用于水氧化的光电阳极。钽（氧）氮化物的带隙范围从2.5到1.9 eV，对应于理论STH效率从9.3%到20.9%变化，被认为是一类有吸引力的光吸附剂，用于PEC水氧化的光阳极，并吸引了最近的研究关注。本文综述了氮化钽光阳极的研究进展。特别感兴趣的是氮化（氧）钽薄膜的合成方法以及提高这些薄膜作为光阳极的光电转换效率和稳定性的重要方法。最后讨论了氮化钽基光阳极的发展趋势。
Photoelectrochemical (PEC) water splitting is a very promising process to produce hydrogen as a clean energy carrier. To achieve 10% solar to hydrogen (STH) conversion efficiency required for practical applications, the current central task in PEC water splitting is the development of efficient photoelectrodes, particularly photoanodes for water oxidation, used in PEC cells. Tantalum (oxy)nitrides with bandgaps ranging from 2.5 to 1.9 eV, corresponding to theoretical STH efficiencies varying from 9.3% to 20.9%, are considered a class of attractive light adsorbers for use in photoanodes for PEC water oxidation and have attracted much recent research attention. In this review, the recent development of tantalum (oxy)nitride photoanodes is summarized. Special interest is focused on the synthesis methods of tantalum (oxy)nitride films and important approaches for improving PEC conversion efficiency and stability of these films as photoanodes. The future trends of tantalum (oxy)nitride based photoanodes are also discussed.