Solar hydrogen generation from seawater with a modified BiVO4 photoanode
Solar hydrogen generation from seawater with a modified BiVO4 photoanode
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DOI：
10.1039/c1ee01812d
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发表时间：
2011-10-01
影响因子：
32.5
通讯作者：
Zou, Zhigang
中科院分区：
文献类型：
--
作者：
Luo, Wenjun;Yang, Zaisan;Zou, Zhigang
氢气是一种非常有前途的未来能源载体。太阳能和海水是地球上最丰富的可再生能源和最丰富的自然资源，利用太阳能和海水制氢具有很大的吸引力。迄今为止，还没有关于在可见光照射下海水分裂中具有高入射光子转换效率（IPCE）的稳定光电极的报道。在这里，我们报告了一个有效的和稳定的系统，用于海水分裂的多金属氧化物BiVO 4的基础上修改。结果表明，在1. 0 V-RHE条件下，改性BiVO 4在1000 W·m ~（-2）AM太阳光下的光电流密度为2.16 mA·cm ~（-2），在440-480 nm可见光区的IPCE最高。
Hydrogen is a very promising candidate as a future energy carrier. It is attractive to produce hydrogen from solar energy and seawater, the most abundant renewable energy source and the most abundant natural resource on the earth. To date, there is no report on a stable photoelectrode with a high incident photon conversion efficiency (IPCE) in seawater splitting under irradiation by visible light. Herein, we report an efficient and stable system for seawater splitting based on a multi-metal oxide BiVO4 after modification. The results indicated that modified BiVO4 had a photocurrent density of 2.16 mA cm(-2) at 1.0 V-RHE in natural seawater under AM 1.5G sunlight (1000 W m(-2)) and exhibited the highest IPCE at 1.0 V-RHE in the visible light region of 440-480 nm among all known oxide photoanodes.