Imperial College London
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Professor Stephen Skinner

Faculty of Engineering, Department of Materials

CeresPower/RAEng Research Chair in Electrochemical Devices
 
 
 
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Contact

 

+44 (0)20 7594 6782s.skinner

 
 
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Location

 

206GoldsmithSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Bayliss:2014:10.1039/C4EE00734D,
author = {Bayliss, RD and Cook, SN and Fearn, S and Kilner, JA and Greaves, C and Skinner, SJ},
doi = {10.1039/C4EE00734D},
journal = {Energy and Environmental Science},
pages = {2999--3005},
title = {On the oxide ion conductivity of potassium doped strontium silicates},
url = {http://dx.doi.org/10.1039/C4EE00734D},
volume = {7},
year = {2014}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Recent reports of remarkably high oxygen ion conductivity in a new family of layered strontium silicates have questioned the rationale for materials design in solid electrolytes. Here, we present a re-investigation of the crystal structure, microstructure, total conductivity and perform the first direct investigation of oxygen ion diffusivity of a nominal Sr0.8K0.2Si0.5Ge0.5O2.9 composition. The results show very low levels of oxide ion conductivity, which do not correlate with total electrical conductivity. Furthermore, sub-micron elemental mapping reveals a previously unreported inhomogeneous chemical composition. The absence of evidence for secondary phases in the diffraction data suggests that the additional phases are amorphous in nature.
AU  - Bayliss,RD
AU  - Cook,SN
AU  - Fearn,S
AU  - Kilner,JA
AU  - Greaves,C
AU  - Skinner,SJ
DO  - 10.1039/C4EE00734D
EP  - 3005
PY  - 2014///
SN  - 1754-5692
SP  - 2999
TI  - On the oxide ion conductivity of potassium doped strontium silicates
T2  - Energy and Environmental Science
UR  - http://dx.doi.org/10.1039/C4EE00734D
UR  - https://pubs.rsc.org/en/content/articlelanding/2014/EE/C4EE00734D
UR  - http://hdl.handle.net/10044/1/15696
VL  - 7
ER  -
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