Activity and Stability of Pt/C and Pt-Cu/C Electrocatalysts

被引：37

作者：

Guterman, V. E. ^{[1
]}

Belenov, S. V. ^{[1
]}

Alekseenko, A. A. ^{[1
]}

Lin, Rui ^{[2
]}

Tabachkova, N. Yu. ^{[3
]}

Safronenko, O. I. ^{[1
]}

机构：

[1] Southern Fed Univ, Chem Fac, 7 Zorge St, Rostov Na Donu 344090, Russia

[2] Tongji Univ, Clean Energy Automot Engn Ctr, Shanghai 201804, Peoples R China

[3] Natl Univ Sci & Technol, MISIS, 4 Leninskiy Ave, Moscow, Russia

来源：

ELECTROCATALYSIS | 2018年 / 9卷 / 05期

基金：

俄罗斯科学基金会;

关键词：

Pt/C activity; Electrocatalyst stability; Core-shell nanoparticles; Platinumalloy; Size effect; Fuel cell; OXYGEN REDUCTION REACTION; FUEL-CELL CATALYSTS; PARTICLE-SIZE; CORE-SHELL; NANOPARTICLE ELECTROCATALYSTS; DEGRADATION MECHANISMS; CRYSTALLITE SIZE; SURFACE-AREA; PLATINUM; PERFORMANCE;

D O I：

10.1007/s12678-017-0451-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Stability in the course of exploitation and catalytic activity in reactions, taking place on the electrodes, are the most important characteristics of electrocatalysts that determine their application in fuel cells. Relationship of the electrochemical behavior of Pt/C catalysts with their morphology is studied in this article. Negative linear correlation between stability and catalytic activity of Pt/C in the reaction of oxygen electroreduction (ORR) has been established. The procedure for choosing electrocatalysts with the optimal ratio of activity and stability has been proposed. Having used CuxPt/C catalysts as an example, we have shown that bimetallic electrocatalysts, prepared by sequential deposition of copper and platinum, can demonstrate significantly higher activity and stability, compared to Pt/C electrocatalysts.

引用

页码：550 / 562

页数：13

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