Efficient oxidative hydrogen peroxide production and accumulation in photoelectrochemical water splitting using a tungsten trioxide/bismuth vanadate photoanode

被引：238

作者：

Fuku, Kojiro ^{[1
]}

Sayama, Kazuhiro ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Ctr Photovolta RCPV, Cent 5,1-1-1 Higashi, Tsukuba, Ibaraki 3058565, Japan

来源：

CHEMICAL COMMUNICATIONS | 2016年 / 52卷 / 31期

关键词：

VISIBLE-LIGHT; WO3/BIVO4; COMPOSITE; OXYGEN; H2O2; PEROXYMONOCARBONATE; NANOSTRUCTURES; PHOTOCATALYSTS; NANOPARTICLES; ELECTROLYTES; ENHANCEMENT;

D O I：

10.1039/c6cc01605g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An aqueous solution of hydrogen carbonate (HCO3-) facilitated oxidative hydrogen peroxide (H2O2) production fromwater on a WO3/BiVO4 photoanode with the simultaneous production of hydrogen (H-2) on a Pt cathode even at an applied voltage far lower than the theoretical electrolysis voltage (+1.77 V vs. RHE) under simulated solar light. The unprecedentedly efficient simultaneous production and accumulation of H2O2 and H-2 was achieved in 2.0 M KHCO3 at low temperature, and the maximum selectivity, accumulated concentration and turnover number (TON) of H2O2 generated reached ca. 54%, more than 2 mM and 108, respectively.

引用

页码：5406 / 5409

页数：4

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