Surface characterization of LaNiO3/Ni-PVC composite

被引：11

作者：

González, M

Elizalde, MP

Baños, L

Poillerat, G

Dávila, MM

机构：

[1] Univ Autonoma Puebla, Fac Ciencias Quim, Puebla 72571, Mexico

[2] Univ Autonoma Puebla, Ctr Quim, Puebla, Mexico

[3] Univ Nacl Autonoma Mexico, Inst Invest Mat, Mexico City 04510, DF, Mexico

[4] Univ Strasbourg 1, Fac Chim, URA CNRS 405, Lab Electrochim & Chim Phys Corps Solide, F-67000 Strasbourg, France

来源：

ELECTROCHIMICA ACTA | 1999年 / 45卷 / 4-5期

关键词：

perovskite anodes; LaNiO3/Ni-PVC composite; oxygen evolution; electrocatalysis; voltammetric characterization;

D O I：

10.1016/S0013-4686(99)00253-4

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The perovskite LaNiO3 was prepared by the sol-gel method. Electrodes of LaNiO3/Ni-PVC were obtained by painting a conductive Ni-PVC composite substrate with a suspension of the LaNiO3 powder in an ethanol-tetrahydrofuran mixture. They were characterized by scanning electron microscopy (SEM), X-ray powder diffraction (XRD) and energy dispersive spectroscopy (EDS). The study of the electrochemical response of this composite was performed in alkaline solutions by cyclic voltammetry, open circuit potential and by voltammetric charges. The state of the surface and the contribution of the Ni-PVC substrate in the electrochemical behavior of LaNiO3 were studied for the same electrode after prolonged repetitive potential cycling and oxygen evolution. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：741 / 750

页数：10

共 21 条

[1] INNER AND OUTER ACTIVE SURFACE OF RUO2 ELECTRODES [J].