Impact of the atmosphere composition in the process of synthesis on the morphology and electrochemical performance of Pt/C electrocatalysts

被引：10

作者：

Alekseenko, Anastasia A. ^{[1
]}

Guterman, Vladimir E. ^{[1
]}

Tabachkova, Natalia Yu ^{[2
]}

Safronenko, Olga I. ^{[1
]}

机构：

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

[2] Natl Univ Sci & Technol MISIS, Leninsky Prospekt 4, Moscow 119049, Russia

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2017年 / 21卷 / 10期

基金：

俄罗斯科学基金会;

关键词：

Pt/C synthesis; CO adsorption; Size effect; Catalyst durability; Catalyst activity in ORR; OXYGEN REDUCTION REACTION; MEMBRANE-FUEL-CELLS; PLATINUM; CATALYSTS; CATHODE; STABILITY; ELECTROOXIDATION; NANOPARTICLES; DEGRADATION; DURABILITY;

D O I：

10.1007/s10008-017-3581-8

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The influence of the atmosphere composition (CO, Ar, air), in which wet synthesis of Pt/C electrocatalyst was carried out, on the structural and morphological characteristics, and electrochemical behavior of electrocatalysts have been studied. For comparison, commercial Pt/C electrocatalysts with the same platinum loading were also studied. It has been shown that the adsorption of CO molecules on the surface of the growing platinum nuclei leads to the decrease in the average size of the nanoparticles and the narrowing of the size distribution in the Pt/C. Homemade electrocatalysts, with the values of electrochemically active surface area being from 94 to 139 m(2) g(-1) (Pt), prove to be in no way inferior to their commercial counterparts in oxygen reduction reaction mass activity. Durability of the homemade Pt/C samples in accelerated stress tests exceeds durability of the commercial ones.

引用

页码：2899 / 2907

页数：9

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