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Enhanced Oxidative Hydrogen Peroxide Production on Conducting Glass Anodes Modified with Metal Oxides
Author(s) -
Fuku Kojiro,
Miyase Yuta,
Miseki Yugo,
Gunji Takahiro,
Sayama Kazuhiro
Publication year - 2016
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201601469
Subject(s) - hydrogen peroxide , anode , substrate (aquarium) , bismuth vanadate , inorganic chemistry , oxide , materials science , cathode , metal , aqueous solution , chemistry , chemical engineering , nuclear chemistry , catalysis , electrode , photocatalysis , metallurgy , organic chemistry , oceanography , engineering , geology
Surface modification of conductive oxide glass (F‐SnO 2 : FTO) anode substrates using 10 oxides was investigated for efficiently producing oxidative hydrogen peroxide (H 2 O 2 ) from water with hydrogen (H 2 ) production at a Pt cathode. Bismuth vanadate (BiVO 4 ) or titanium oxide modification significantly facilitated oxidative H 2 O 2 production in an aqueous solution of bicarbonate (HCO 3 − ) on the anode substrate in the dark. The BiVO 4 ‐supported FTO anode (BiVO 4 /FTO) achieved not only approximately twice the H 2 O 2 generation performance compared with a bare FTO substrate but also high H 2 O 2 accumulation, and the maximum selectivity (η(H 2 O 2 )) and accumulation reached ca . 35 % and 5 mM, respectively.