Photoelectrochemical Reaction for the Efficient Production of Hydrogen and High-Value-Added Oxidation Reagents

被引：54

作者：

Fuku, Kojiro ^{[1
]}

Wang, Nini ^{[1
]}

Miseki, Yugo ^{[1
]}

Funaki, Takashi ^{[1
]}

Sayama, Kazuhiro ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Energy Technol Res Inst, Tsukuba, Ibaraki 3058565, Japan

来源：

CHEMSUSCHEM | 2015年 / 8卷 / 09期

关键词：

oxidation reagents; hydrogen; tandem reactions; water splitting; WO3; photoelectrodes; SENSITIZED SOLAR-CELLS; VISIBLE-LIGHT; WATER OXIDATION; BIVO4; PHOTOANODES; FUEL-CELL; WO3; NANOPARTICLES; ELECTROLYTES; PEROXIDE; FILMS;

D O I：

10.1002/cssc.201403463

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A porous and thick photoelectrode of WO3 in the monoclinic phase was prepared to realize the recovery of H-2 and high-value-added oxidation reagents with efficient solar energy conversion. The WO3 photoelectrode enabled the efficient production and accumulation of O-2, S2O82-, Ce4+, and IO4- as oxidation products. Most notably, S2O82-, which possesses the highest oxidizability among all the peroxides, was generated with high applied bias photon-to-current efficiency (2.2%) and faraday efficiency (approximate to 100%) upon irradiation from the back side of the photoelectrode. The design of a tandem photoelectrode system combining a dye-sensitized solar cell (DSSC) was also challenged for the realization of this photoelectrode system without external bias. A high solar energy conversion efficiency (5.2%) was achieved in the tandem system comprising the WO3 photoelectrode connected to two DSSCs with a near-IR-utilizing dye in series for the production of H-2 and S2O82-.

引用

页码：1593 / 1600

页数：8

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