All-vanadium redox photoelectrochemical cell: An approach to store solar energy
All-vanadium redox photoelectrochemical cell: An approach to store solar energy
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DOI：
10.1016/j.elecom.2014.05.018
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发表时间：
2014-08-01
影响因子：
5.4
通讯作者：
Liu, Fuqiang
中科院分区：
文献类型：
--
作者：
Wei, Zi;Liu, Dong;Liu, Fuqiang
本工作研制了一种高效的全钒光电化学蓄电池。该电池利用了钒氧化还原对的快速电化学动力学的优势，VO 2 + VO 2+和V3+/V2+，并出现作为一个有前途的替代光制氢从水。连续光充电25小时显示的VO 2+转化率为0.0042 μ mol/h和法拉第效率为95%，没有外部电压偏置。在350 nm光下的入射光子-电流效率（IPCE）计算为类似于12%。(C)2014爱思唯尔有限公司版权所有。
A highly-efficient all-vanadium photoelectrochemical storage cell has been demonstrated in this work. This storage cell takes advantage of fast electrochemical kinetics of vanadium redox couples of VO2+VO2+ and V3+/V2+, and appears as a promising alternative to photoproduction of hydrogen from water. Continuous photocharging for 25 h revealed a VO2+ conversion rate of 0.0042 mu mol/h and Faradaic efficiency of 95% without external voltage bias. The incident photon-to-current efficiency (IPCE) at 350 nm light was calculated to be similar to 12%. (C) 2014 Elsevier B.V. All rights reserved.