Development of Enhanced Corrosion Resistant Carbon Supports for Pt/C Catalysts for the Oxygen Electroreduction Reaction | Sciact - CRIS-система Института катализа

Development of Enhanced Corrosion Resistant Carbon Supports for Pt/C Catalysts for the Oxygen Electroreduction Reaction Тезисы доклада

Конференция

20th World Hydrogen Energy Conference (WHEC2014)
15-20 июн. 2014 , Gwangju

Сборник

20th World Hydrogen Energy Conference, S. Korea, June 15-20, 2014
Сборник, 2014. РИНЦ

Вых. Данные

Год: 2014, Том: 1, Страницы: 683-688 Страниц : 6

Ключевые слова

Carbon supports; Fuel cells; Platinum

Авторы

Golovin V. ^1,2 , Gribov E.N. ^1,2 , Okunev A.G. ^1,2 , Simonov P.A. ^1,2 , Voropaev I.N. ¹ , Kuznetsov A.N. ¹

Организации

1	Boreskov Institute of Catalysis SB RAS
2	Novosibirsk National Research University

A sharp increase in the cathode potential (up to 1.4 V. vs. RHE) due to the simultaneous presence of oxygen (air) and hydrogen in the anode side is the main degradation cause of Pt/C catalysts for polymer electrolyte fuel cells (PEMFC) using as a power source for cars. This potential is much higher than the carbon oxidation potential, so the corrosion resistance of a carbon support is an important parameters of the PEMFC effective operation. In this paper, the stability of commercial carbon supports was improved by modifying the surface under different conditions. A series of the 50 % Pt/C catalysts were synthesized and their stabilities (electrochemical surface area of Pt) were investigated using "start-stop cycling" in an electrochemical cell at 1.0-1.5 vs. RHE potentials with a sweep rate of 0.5 V/s for 60,000 cycles. Commercial 40%Pt/Vulcan XC- 72 and catalysts were selected for a comparison. It is shown that the support carbonization with propane-butane mixture at 750°C increases, while the activation in air with subsequent treatment at 800°C lowers the corrosion resistance of Pt/C catalysts.

Golovin V. , Gribov E.N. , Okunev A.G. , Simonov P.A. , Voropaev I.N. , Kuznetsov A.N.
Development of Enhanced Corrosion Resistant Carbon Supports for Pt/C Catalysts for the Oxygen Electroreduction Reaction
В сборнике 20th World Hydrogen Energy Conference, S. Korea, June 15-20, 2014. 2014. – C.683-688. Scopus РИНЦ OpenAlex

Scopus:	2-s2.0-84924915526
РИНЦ:	24042378
OpenAlex:	W1671989420

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