Electrocatalytic Activity and Stability of M-Fe Catalysts Synthesized by Polymer Complex Method for PEFC Cathode

Handle URI:
http://hdl.handle.net/10754/555772
Title:
Electrocatalytic Activity and Stability of M-Fe Catalysts Synthesized by Polymer Complex Method for PEFC Cathode
Authors:
Ou, Yiwei; Kumagai, Hiromu; Yin, Fengxiang; Okada, Saori; Hatasawa, Haruna; Morioka, Hiroyuki; Takanabe, Kazuhiro ( 0000-0001-5374-9451 ) ; Kubota, Jun; Domen, Kazunari
Abstract:
The polymerized complex (PC) method was used to synthesize highly dispersed iron-based catalysts for the oxygen reduction reaction (ORR). The catalysts were prepared with an addition of 1,10-phenanthroline (Phen) and transition metals (M), such as Ta, Ti, and W, in an attempt to enhance the ORR activity and durability of the catalysts. The composition and properties of the catalysts were characterized by thermogravimetric analysis, X-ray diffraction, and X-ray photoelectron spectroscopy. The catalyst components, after extensive dissolution in a strong acid solution, were characterized by inductively coupled plasma mass spectroscopy and ultraviolet-visible spectroscopy. It was found that the Ti-Fe catalyst showed improved ORR performance, and the Ta-Fe catalyst showed enhanced stability towards ORR in acidic solution. The catalytic activity and stability for ORR was observed by adding Ti or Ta into the catalyst formulation, suggesting that the interaction between added hetero-ions (Ti and Ta) and ionic Fe active sites was beneficial for the ORR. A single-cell test with the synthesized catalyst in the cathode initially generated a high power density, but the low stability remains an issue to be solved.
KAUST Department:
KAUST Catalysis Center (KCC)
Citation:
Electrocatalytic Activity and Stability of M-Fe Catalysts Synthesized by Polymer Complex Method for PEFC Cathode 2011, 158 (12):B1491 Journal of The Electrochemical Society
Journal:
Journal of The Electrochemical Society
Issue Date:
1-Nov-2011
DOI:
10.1149/2.034112jes
Type:
Article
ISSN:
00134651
Additional Links:
http://jes.ecsdl.org/cgi/doi/10.1149/2.034112jes
Appears in Collections:
Articles; KAUST Catalysis Center (KCC); KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorOu, Yiweien
dc.contributor.authorKumagai, Hiromuen
dc.contributor.authorYin, Fengxiangen
dc.contributor.authorOkada, Saorien
dc.contributor.authorHatasawa, Harunaen
dc.contributor.authorMorioka, Hiroyukien
dc.contributor.authorTakanabe, Kazuhiroen
dc.contributor.authorKubota, Junen
dc.contributor.authorDomen, Kazunarien
dc.date.accessioned2015-05-26T07:45:38Zen
dc.date.available2015-05-26T07:45:38Zen
dc.date.issued2011-11-01en
dc.identifier.citationElectrocatalytic Activity and Stability of M-Fe Catalysts Synthesized by Polymer Complex Method for PEFC Cathode 2011, 158 (12):B1491 Journal of The Electrochemical Societyen
dc.identifier.issn00134651en
dc.identifier.doi10.1149/2.034112jesen
dc.identifier.urihttp://hdl.handle.net/10754/555772en
dc.description.abstractThe polymerized complex (PC) method was used to synthesize highly dispersed iron-based catalysts for the oxygen reduction reaction (ORR). The catalysts were prepared with an addition of 1,10-phenanthroline (Phen) and transition metals (M), such as Ta, Ti, and W, in an attempt to enhance the ORR activity and durability of the catalysts. The composition and properties of the catalysts were characterized by thermogravimetric analysis, X-ray diffraction, and X-ray photoelectron spectroscopy. The catalyst components, after extensive dissolution in a strong acid solution, were characterized by inductively coupled plasma mass spectroscopy and ultraviolet-visible spectroscopy. It was found that the Ti-Fe catalyst showed improved ORR performance, and the Ta-Fe catalyst showed enhanced stability towards ORR in acidic solution. The catalytic activity and stability for ORR was observed by adding Ti or Ta into the catalyst formulation, suggesting that the interaction between added hetero-ions (Ti and Ta) and ionic Fe active sites was beneficial for the ORR. A single-cell test with the synthesized catalyst in the cathode initially generated a high power density, but the low stability remains an issue to be solved.en
dc.relation.urlhttp://jes.ecsdl.org/cgi/doi/10.1149/2.034112jesen
dc.rightsArchived with thanks to Journal of The Electrochemical Society ©2011 ECS - The Electrochemical Societyen
dc.titleElectrocatalytic Activity and Stability of M-Fe Catalysts Synthesized by Polymer Complex Method for PEFC Cathodeen
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.identifier.journalJournal of The Electrochemical Societyen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Chemical System Engineering, The University of Tokyo, Tokyo 300-1514, Japanen
dc.contributor.institutionToppan Technical Research Institute, Toppan Printing Co., Ltd., Saitama, 345-8508, Japanen
kaust.authorTakanabe, Kazuhiroen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.