Solar hydrogen production with nanostructured metal oxides
Solar hydrogen production with nanostructured metal oxides
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DOI：
10.1039/b718969a
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发表时间：
2008-05-28
影响因子：
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通讯作者：
Schoonman, Joop
中科院分区：
文献类型：
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作者：
van de Krol, Roe;Liang, Yongqi;Schoonman, Joop
将太阳能直接转化为氢代表了光伏太阳能电池的一种有吸引力但具有挑战性的替代方案。几种金属氧化物半导体能够在光照下将水分解为氢和氧，但效率仍然（太）低。光电化学装置的水裂解，其主要瓶颈，和各种设备的概念的操作原理将进行审查。材料性能起着关键作用，界面层和掺杂剂的使用的优点和缺陷将进行讨论。将特别关注在合成具有高纵横比的纳米结构金属氧化物（如纳米线阵列）方面取得的最新进展，这为开发用于太阳能水分解的高效光活性材料提供了新的机会。
The direct conversion of solar energy into hydrogen represents an attractive but challenging alternative for photo-voltaic solar cells. Several metal oxide semiconductors are able to split water into hydrogen and oxygen upon illumination, but the efficiencies are still (too) low. The operating principles of photo-electrochemical devices for water splitting, their main bottlenecks, and the various device concepts will be reviewed. Materials properties play a key role, and the advantages and pitfalls of the use of interfacial layers and dopants will be discussed. Special attention will be given to recent progress made in the synthesis of nanostructured metal oxides with high aspect ratios, such as nanowire arrays, which offers new opportunities to develop efficient photo-active materials for solar water splitting.