Improved Proton Conductivity in Spark-Plasma Sintered Dense Ceramic BaZr0.5In0.5O3-delta
Artikel i vetenskaplig tidskrift, 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.

bazr0.9y0.1o2.95

transport-properties

hydrogen

doped bazro3

oxides

chemical-stability

conductors

baceo3

Författare

Istaq Ahmed

Chalmers, Kemi- och bioteknik, Oorganisk miljökemi

FRANCIS GACHAO KINYANJUI

Chalmers, Kemi- och bioteknik, Oorganisk miljökemi

Patrick Steegstra

Göteborgs universitet

Z. J. Shen

Stockholms universitet

Sten Eriksson

Chalmers, Kemi- och bioteknik, Oorganisk miljökemi

M. Nygren

Stockholms universitet

Electrochemical and Solid-State Letters

1099-0062 (ISSN)

Vol. 13 B130-B134

Ämneskategorier

Materialteknik

Kemi

DOI

10.1149/1.3482016