On the use of NiO as sintering additive for BaCe0.9Y0.1O3-α

被引：57

作者：

Costa, R. ^{[1
]}

Gruenbaum, N. ^{[2
]}

Berger, M. -H. ^{[1
]}

Dessemond, L. ^{[2
]}

Thorel, A. ^{[1
]}

机构：

[1] CNRS, Ctr Mat, UMR 7633, F-91003 Evry, France

[2] CNRS, Lab Electrochim & Physicochim Mat & Interfaces, Grp Grenoble, INP,UJF,UMR 5631, F-38402 St Martin Dheres, France

来源：

SOLID STATE IONICS | 2009年 / 180卷 / 11-13期

关键词：

Proton conductor; Perovskite; Sintering; BaCeO3; NiO; DOPED BARIUM CERATE; NEUTRON POWDER DIFFRACTION; CHEMICAL-STABILITY; PHASE-TRANSITIONS; FUEL-CELL; ELECTRICAL-CONDUCTIVITY; PROTONIC CONDUCTORS; BACEO3; NONSTOICHIOMETRY; PEROVSKITES;

D O I：

10.1016/j.ssi.2009.02.018

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 effect of nickel oxide addition on the densification behaviour and electrical conductivity of BaCe0.9Y0.1O3-alpha (BCY10) is investigated. Small addition (4 mol%) of this sintering aid reduces the sintering temperature by 200 degrees C and promotes the densification. 95% of the theoretical density was reached after sintering at 1250 degrees C for 10 h in air. Addition of NiO has no detrimental effect on the total conductivity of BCY10 in wet hydrogen. Nevertheless, the activation energy of the recorded blocking effect is higher than that of the bulk contribution, indicating different electrical properties between grains and internal interfaces in pure and NiO doped BCY10. (c) 2009 Elsevier B.V. All rights reserved.

引用

页码：891 / 895

页数：5

共 37 条

[1] Electrochemical properties of BaCe0.8Gd0.2O3 electrolyte films deposited on Ni-BaCe0.8Gd0.2O3 substrates [J].