TY - JOUR
T1 - Investigation of proton conduction in La1-xBa1+xGaO4-x/2 and La1-xSr2+xGaO5-x/2
AU - Schonberger, F
AU - Kendrick, E
AU - Islam, MS
AU - Slater, PR
PY - 2005
Y1 - 2005
N2 - In this paper we report an investigation of proton conduction in two gallate systems, La1−xBa1+xGaO4−x/2 and La1−xSr2+xGaO5−x/2, containing tetrahedral Ga. Measurements in dry atmospheres show that both systems exhibit a p-type contribution to the conductivity, while a comparison between dry and wet atmospheres shows evidence for proton conduction. The La1−xBa1+xGaO4−x/2 system shows the highest proton conductivities, with conductivities reported being significantly higher (≈ 1 × 10− 4 S cm− 1 at 500 °C for x = 0.2) than those for other structures containing tetrahedral ions, e.g. LaPO4. Replacement of La by Pr in this system leads to an increase in the electronic contribution to the conductivity.
AB - In this paper we report an investigation of proton conduction in two gallate systems, La1−xBa1+xGaO4−x/2 and La1−xSr2+xGaO5−x/2, containing tetrahedral Ga. Measurements in dry atmospheres show that both systems exhibit a p-type contribution to the conductivity, while a comparison between dry and wet atmospheres shows evidence for proton conduction. The La1−xBa1+xGaO4−x/2 system shows the highest proton conductivities, with conductivities reported being significantly higher (≈ 1 × 10− 4 S cm− 1 at 500 °C for x = 0.2) than those for other structures containing tetrahedral ions, e.g. LaPO4. Replacement of La by Pr in this system leads to an increase in the electronic contribution to the conductivity.
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000234473600021&KeyUID=WOS:000234473600021
U2 - 10.1016/j.ssi.2005.09.028
DO - 10.1016/j.ssi.2005.09.028
M3 - Article
SN - 0167-2738
VL - 176
SP - 2951
EP - 2953
JO - Solid State Ionics
JF - Solid State Ionics
IS - 39-40
ER -