Significance of an anion effect in the selective oxidation of Ce3+ to Ce4+ over a porous WO3 photoanode
Journal Article
·
· Electrochimica Acta
- National Inst. of Advanced Industrial Science and Technology (AIST), Tsukuba (Japan). Advanced Functional Material Team. Research Center for Photovoltaics (PCPV)
- Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Division
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.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0012704
- OSTI ID:
- 1504378
- Alternate ID(s):
- OSTI ID: 1508175
- Report Number(s):
- BNL-211493-2019-JAAM
- Journal Information:
- Electrochimica Acta, Vol. 307; ISSN 0013-4686
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 5 works
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