Activity of oxygen reduction reaction on small amount of amorphous CeO(x) promoted Pt cathode for fuel cell application

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10108234" target="_blank" >RIV/00216208:11320/11:10108234 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.electacta.2011.02.034" target="_blank" >http://dx.doi.org/10.1016/j.electacta.2011.02.034</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.electacta.2011.02.034" target="_blank" >10.1016/j.electacta.2011.02.034</a>

Result language

angličtina

Original language name

Activity of oxygen reduction reaction on small amount of amorphous CeO(x) promoted Pt cathode for fuel cell application

Original language description

Pt on ceria (CeO(x)) particles supported on carbon black (CB) were synthesized using the combined process of hot precipitation and impregnation methods. During 30 cycles of cyclic voltammetry pre-treatment in the potential ranging from -0.2 to 1.3 V (V vs. Ag/AgCl), it was observed that a small amount of CeO(x), which consisted of the interface region between Pt and CeO(x), remained on Pt particles. Other free CeO(x) particles were dissolved into H(2)SO(4) aqueous solution. To develop the Pt-CeO(x)/CB catalyst, the surface chemical states, the net chemical composition, morphology and electrochemical behavior in H(2)SO(4) aqueous solution were characterized. Our microanalysis and electrochemical analysis indicate that the active CeO(2) with high specific surface area provides the continuous amorphous cerium oxide (Ce(3+), Ce(4+)) layer with pores on the surface of Pt particles. It is concluded that the amorphous cerium oxide layer on Pt inhibits the oxidation of Pt surface and contribut

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Electrochimica Acta

ISSN

0013-4686

e-ISSN

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Volume of the periodical

56

Issue of the periodical within the volume

11

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

3874-3883

UT code for WoS article

000290692700017

EID of the result in the Scopus database

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