Preparation and Electrocatalytic Properties of Perovskite Type Oxides CaVO3 for Oxygen Reduction Reaction

被引：4

作者：

Chen Feng-Ying ^{[1
,2
]}

Xiao Li ^{[1
]}

Yang Cui-Xia ^{[1
]}

Zhuang Lin ^{[1
]}

机构：

[1] Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China

[2] Shangluo Univ, Shaanxi Key Lab Comprehens Utilizat Tailings Reso, Coll Chem Engn & Modern Mat, Shangluo 726000, Shaanxi, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 2015年 / 31卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Perovskite; Sol-gel method; Oxygen reduction reaction; ALKALINE ELECTROLYTE; CATALYTIC-ACTIVITY; OXIDATION; COMBUSTION;

D O I：

10.3866/PKU.WHXB201510162

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：

The precursor powder of CaVO3 was prepared by sol-gel method using vanadium pentoxide, calcium nitrate, citric acid, and oxalic acid as raw materials. The target product CaVO3 was obtained by calcining the precursor powder in argon atmosphere at 1000 degrees C. In order to determine the appropriate calcination temperature, thermal stability of the precursor powder was tested. The target product CaVO3 was characterized by Fourier transform infrared (FTIR) spectrometry, thermogravimetry (TG), X-ray diffraction (XRD), and conductivity. In addition, the properties for oxygen reduction reaction (ORR) were also investigated, and the results showed that the electron transfer number of ORR on the modified electrode was 1.5-1.7, which indicating that ORR was a two-electron process.

引用

页码：2310 / 2315

页数：6

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