Improved Proton Conductivity in Spark-Plasma Sintered Dense Ceramic BaZr0.5In0.5O3-delta
Journal article, 2010

Spark-plasma sintering method was used to prepare dense proton conducting perovskite oxide BaZr0.5In0.5O3-delta. Analysis of X-ray powder diffraction data showed that the sample adopt the cubic crystal structure having the space group Pm3m. Thermogravimetric analysis of prehydrated samples showed significant mass losses beyond 300 degrees C due to loss of protons as water vapor. Scanning electron microscope images show that the grain size of the spark-plasma sintered dense sample was smaller than that of solid-state sintered porous sample. The highest total proton conductivity (2 X 10(-3) S cm(-1) at 450 degrees C) was found for dense spark-plasma sintered sample under wet H-2 than the samples prepared by other routes.

conductors

hydrogen

doped bazro3

transport-properties

bazr0.9y0.1o2.95

oxides

baceo3

chemical-stability

Author

Istaq Ahmed

Chalmers, Chemical and Biological Engineering, Environmental Inorganic Chemistry

FRANCIS GACHAO KINYANJUI

Chalmers, Chemical and Biological Engineering, Environmental Inorganic Chemistry

Patrick Steegstra

University of Gothenburg

Z. J. Shen

Stockholm University

Sten Eriksson

Chalmers, Chemical and Biological Engineering, Environmental Inorganic Chemistry

M. Nygren

Stockholm University

Electrochemical and Solid-State Letters

1099-0062 (ISSN)

Vol. 13 11 B130-B134

Subject Categories

Materials Engineering

Chemical Sciences

DOI

10.1149/1.3482016

More information

Latest update

3/1/2018 7