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The composite electrolyte with an insulation Sm2O3 and semiconductor NiO for advanced fuel cells

Liu, Liang; Liu, Yanyan; Li, Lingyao; Wu, Yan; Singh, Manish LU and Zhu, Bin (2018) In International Journal of Hydrogen Energy
Abstract

Novel Sm2O3−NiO composite was prepared as the functional electrolyte for the first time. The total electrical conductivity of Sm2O3−NiO is 0.38 S cm−1 in H2/air condition at 550 °C. High performance, e.g. 718 mW cm−2, was achieved using Sm2O3−NiO composite as an electrolyte of solid oxide fuel cells operated at 550 °C. The electrical properties and electrochemical performance are strongly depended on Sm2O3 and NiO constituent phase of the compositions. Notably, surprisingly high ionic conductivity and fuel cell performance are achieved using the composite system constituting with insulating Sm2O3... (More)

Novel Sm2O3−NiO composite was prepared as the functional electrolyte for the first time. The total electrical conductivity of Sm2O3−NiO is 0.38 S cm−1 in H2/air condition at 550 °C. High performance, e.g. 718 mW cm−2, was achieved using Sm2O3−NiO composite as an electrolyte of solid oxide fuel cells operated at 550 °C. The electrical properties and electrochemical performance are strongly depended on Sm2O3 and NiO constituent phase of the compositions. Notably, surprisingly high ionic conductivity and fuel cell performance are achieved using the composite system constituting with insulating Sm2O3 and intrinsic p-type conductive NiO with a low conductivity of 4 × 10−3 S cm−1. The interfacial ionic conduction between two phases is a dominating factor giving rise to significantly enhanced proton conduction. Fuel cell performance and further ionic conduction mechanisms are under investigation.

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author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
Composite electrolyte, Interfacial ionic conduction, Proton conduction, Semiconductor-ionic fuel cells, SmO−NiO
in
International Journal of Hydrogen Energy
publisher
Elsevier
external identifiers
  • scopus:85046168913
ISSN
0360-3199
DOI
10.1016/j.ijhydene.2018.03.184
language
English
LU publication?
yes
id
e41f535e-1209-4740-b94b-56ba057411ef
date added to LUP
2018-05-16 14:03:37
date last changed
2018-05-29 10:31:48
@article{e41f535e-1209-4740-b94b-56ba057411ef,
  abstract     = {<p>Novel Sm<sub>2</sub>O<sub>3</sub>−NiO composite was prepared as the functional electrolyte for the first time. The total electrical conductivity of Sm<sub>2</sub>O<sub>3</sub>−NiO is 0.38 S cm<sup>−1</sup> in H<sub>2</sub>/air condition at 550 °C. High performance, e.g. 718 mW cm<sup>−2</sup>, was achieved using Sm<sub>2</sub>O<sub>3</sub>−NiO composite as an electrolyte of solid oxide fuel cells operated at 550 °C. The electrical properties and electrochemical performance are strongly depended on Sm<sub>2</sub>O<sub>3</sub> and NiO constituent phase of the compositions. Notably, surprisingly high ionic conductivity and fuel cell performance are achieved using the composite system constituting with insulating Sm<sub>2</sub>O<sub>3</sub> and intrinsic p-type conductive NiO with a low conductivity of 4 × 10<sup>−3</sup> S cm<sup>−1</sup>. The interfacial ionic conduction between two phases is a dominating factor giving rise to significantly enhanced proton conduction. Fuel cell performance and further ionic conduction mechanisms are under investigation.</p>},
  author       = {Liu, Liang and Liu, Yanyan and Li, Lingyao and Wu, Yan and Singh, Manish and Zhu, Bin},
  issn         = {0360-3199},
  keyword      = {Composite electrolyte,Interfacial ionic conduction,Proton conduction,Semiconductor-ionic fuel cells,SmO−NiO},
  language     = {eng},
  month        = {04},
  publisher    = {Elsevier},
  series       = {International Journal of Hydrogen Energy},
  title        = {The composite electrolyte with an insulation Sm<sub>2</sub>O<sub>3</sub> and semiconductor NiO for advanced fuel cells},
  url          = {http://dx.doi.org/10.1016/j.ijhydene.2018.03.184},
  year         = {2018},
}