Activity of oxygen reduction reaction on small amount of amorphous CeO(x) promoted Pt cathode for fuel cell application
Identifikátory výsledku
Kód výsledku v 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>
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Activity of oxygen reduction reaction on small amount of amorphous CeO(x) promoted Pt cathode for fuel cell application
Popis výsledku v původním jazyce
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
Název v anglickém jazyce
Activity of oxygen reduction reaction on small amount of amorphous CeO(x) promoted Pt cathode for fuel cell application
Popis výsledku anglicky
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
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
BM - Fyzika pevných látek a magnetismus
OECD FORD obor
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Návaznosti výsledku
Projekt
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Návaznosti
Z - Vyzkumny zamer (s odkazem do CEZ)
Ostatní
Rok uplatnění
2011
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Electrochimica Acta
ISSN
0013-4686
e-ISSN
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Svazek periodika
56
Číslo periodika v rámci svazku
11
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
10
Strana od-do
3874-3883
Kód UT WoS článku
000290692700017
EID výsledku v databázi Scopus
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