Photoelectrochemical Hydrogen Peroxide Production from Water on a WO<sub>3</sub>/BiVO<sub>4</sub> Photoanode and from O<sub>2</sub> on an Au Cathode Without External Bias

Chemistry - An Asian Journal - Tập 12 Số 10 - Trang 1111-1119 - 2017
Kojiro Fuku1, Yuta Miyase2,1, Yugo Miseki1, Takashi Funaki1, Takahiro Gunji2,1, Kazuhiro Sayama2,1
1Research Center for Photovoltaics (RCPV), National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565 Japan
2Department of Pure and Applied Chemistry, Tokyo University of Science, 2641 Yamasaki, Noda, Chiba, 278-8514 Japan

Tóm tắt

Abstract

The photoelectrochemical production and degradation properties of hydrogen peroxide (H2O2) were investigated on a WO3/BiVO4 photoanode in an aqueous electrolyte of hydrogen carbonate (HCO3−). High concentrations of HCO3− species rather than CO32− species inhibited the oxidative degradation of H2O2 on the WO3/BiVO4 photoanode, resulting in effective oxidative H2O2 generation and accumulation from water (H2O). Moreover, the Au cathode facilitated two‐electron reduction of oxygen (O2), resulting in reductive H2O2 production with high current efficiency. Combining the WO3/BiVO4 photoanode with a HCO3− electrolyte and an Au cathode also produced a clean and promising design for a photoelectrode system specializing in H2O2 production (ηanode(H2O2)≈50 %, ηcathode(H2O2)≈90 %) even without applied voltage between the photoanode and cathode under simulated solar light through a two‐photon process; this achieved effective H2O2 production when using an Au‐supported porous BiVO4 photocatalyst sheet.

Từ khóa


Tài liệu tham khảo

10.1038/238037a0

10.1038/414625a

10.1039/B800489G

10.1038/440295a

10.1039/c0cc00589d

10.1002/asia.201100984

10.1002/anie.201301652

10.1002/ange.201301652

10.1039/b718644d

10.1039/b310428a

10.1016/j.electacta.2008.08.058

10.1039/c2cc30713h

10.1016/j.ijhydene.2013.08.114

10.1038/ncomms5775

10.1126/science.1246913

10.1038/ncomms12012

10.1038/srep02681

10.1039/c2ee02929d

10.1021/jp209909b

10.1038/am.2013.42

10.1002/cssc.201403463

10.1038/nchem.2194

10.1039/C6CC01605G

10.1002/slct.201601469

10.1039/b303160h

10.1021/ja205699d

10.1039/c3cc48220k

10.1021/ja960177m

10.2166/wst.2000.0312

10.1039/C4RA00874J

10.1016/j.jphotochem.2015.06.011

10.1021/ja102651g

10.1039/c3ee42815j

10.1021/jp312795f

10.1002/anie.201407938

10.1002/ange.201407938

10.1039/C5EE00748H

10.1002/anie.201502396

10.1002/ange.201502396

10.1039/C5TA02446C

10.1021/acscatal.6b02367

10.1021/jacs.6b05806

10.1039/C5CY01845E

10.1016/j.apcatb.2016.03.004

10.1039/C6RA06814F

10.1021/acsenergylett.6b00415

10.1016/j.bbabio.2015.08.012

10.1002/celc.201600317

10.1021/acscatal.6b01187

10.1016/j.jcat.2016.10.028

10.1038/ncomms11470

10.1002/anie.201606734

10.1002/ange.201606734

10.1038/nphoton.2012.265

10.1021/jz4013257

10.1021/ja405550k

10.1002/anie.201108738

10.1002/ange.201108738

10.1039/C5CP07389H

10.1021/ja9927467

10.1002/1521-3773(20020603)41:11<1922::AID-ANIE1922>3.0.CO;2-T

10.1002/1521-3757(20020603)114:11<2002::AID-ANGE2002>3.0.CO;2-H

10.1149/1.3005555

10.1021/ic1007389

10.1016/j.jpowsour.2015.09.094

10.1021/jacs.5b09015

10.1039/C6TA07997K

10.1021/nl500037x

Thông tin
Thông tin xuất bản

Chemistry - An Asian Journal

Tập 12 Số 10

1111-1119

Thông tin tác giả