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Title: Significance of an anion effect in the selective oxidation of Ce 3+ to Ce 4+ over a porous WO 3 photoanode

Abstract

We report the oxidation of Ce 3+ to Ce 4+ using a porous WO 3 photoanode and a Pt cathode with excellent Faradaic efficiency (FE (Ce 4+)) of up to 98% under solar simulated light in an aqueous electrolyte solution containing a high concentration of SO 4 2- anions. The competing side oxidative reactions such as S 2O 8 2- and O 2 production were found to be suppressed in the presence of Ce 3+. The Ce 4+ yield (YI (Ce 4+)) from Ce 3+ reached up to 95%. Also, a noble-metal-free biomass-derived inexpensive electrode was found to be an efficient replacement of the Pt cathode.

Authors:
 [1];  [1];  [2];  [2];  [1]
  1. National Inst. of Advanced Industrial Science and Technology (AIST), Tsukuba (Japan). Advanced Functional Material Team. Research Center for Photovoltaics (PCPV)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Division
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1504378
Alternate Identifier(s):
OSTI ID: 1508175
Report Number(s):
BNL-211493-2019-JAAM
Journal ID: ISSN 0013-4686
Grant/Contract Number:  
SC0012704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Electrochimica Acta
Additional Journal Information:
Journal Name: Electrochimica Acta; Journal ID: ISSN 0013-4686
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; electrochemistry; photocatalysis; photooxidation; anion effect; biomass

Citation Formats

Takasugi, Soichi, Miseki, Yugo, Sasaki, Kotaro, Fujita, Etsuko, and Sayama, Kazuhiro. Significance of an anion effect in the selective oxidation of Ce3+ to Ce4+ over a porous WO3 photoanode. United States: N. p., 2019. Web. doi:10.1016/j.electacta.2019.03.178.
Takasugi, Soichi, Miseki, Yugo, Sasaki, Kotaro, Fujita, Etsuko, & Sayama, Kazuhiro. Significance of an anion effect in the selective oxidation of Ce3+ to Ce4+ over a porous WO3 photoanode. United States. doi:10.1016/j.electacta.2019.03.178.
Takasugi, Soichi, Miseki, Yugo, Sasaki, Kotaro, Fujita, Etsuko, and Sayama, Kazuhiro. Thu . "Significance of an anion effect in the selective oxidation of Ce3+ to Ce4+ over a porous WO3 photoanode". United States. doi:10.1016/j.electacta.2019.03.178.
@article{osti_1504378,
title = {Significance of an anion effect in the selective oxidation of Ce3+ to Ce4+ over a porous WO3 photoanode},
author = {Takasugi, Soichi and Miseki, Yugo and Sasaki, Kotaro and Fujita, Etsuko and Sayama, Kazuhiro},
abstractNote = {We report the oxidation of Ce3+ to Ce4+ using a porous WO3 photoanode and a Pt cathode with excellent Faradaic efficiency (FE (Ce4+)) of up to 98% under solar simulated light in an aqueous electrolyte solution containing a high concentration of SO42- anions. The competing side oxidative reactions such as S2O82- and O2 production were found to be suppressed in the presence of Ce3+. The Ce4+ yield (YI (Ce4+)) from Ce3+ reached up to 95%. Also, a noble-metal-free biomass-derived inexpensive electrode was found to be an efficient replacement of the Pt cathode.},
doi = {10.1016/j.electacta.2019.03.178},
journal = {Electrochimica Acta},
issn = {0013-4686},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on March 28, 2020
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