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Electrospun fabrication of nanofibers as high-performance cathodes of solid oxide fuel cells

Parbey, Joseph ; Xu, Min ; Lei, Jialong ; Espinoza-Andaluz, Mayken LU ; Li, Tingshuai and Andersson, Martin LU (2020) In Ceramics International 46(5). p.6969-6972
Abstract

The oxygen reduction reaction (ORR) activity can strongly affect the performance of solid oxide fuel cells (SOFCs). To improve the electron transfer and enhance active sites for reactions in cathode, La0.8Sr0.2MnO3 mixed with Y2O3-stabilized ZrO2 (LSM/YSZ) nanofibers were co-fabricated by the electrospinning method. The fibers were well characterized and the electrochemical properties were evaluated by preparing a symmetrical sample with yttria-stabilized Zirconia (YSZ) pellet as electrolyte. The electrochemical impedance spectra reveal that appropriate grinding time can benefit an improved electrical conductivity and this nanostructure also has a porosity of up to 50%,... (More)

The oxygen reduction reaction (ORR) activity can strongly affect the performance of solid oxide fuel cells (SOFCs). To improve the electron transfer and enhance active sites for reactions in cathode, La0.8Sr0.2MnO3 mixed with Y2O3-stabilized ZrO2 (LSM/YSZ) nanofibers were co-fabricated by the electrospinning method. The fibers were well characterized and the electrochemical properties were evaluated by preparing a symmetrical sample with yttria-stabilized Zirconia (YSZ) pellet as electrolyte. The electrochemical impedance spectra reveal that appropriate grinding time can benefit an improved electrical conductivity and this nanostructure also has a porosity of up to 50%, which is expected to reduce the resistance of mass transfer and enhance the electron and ion transportation.

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cathode, Electrospinning, Impedance spectra, Solid oxide fuel cells
in
Ceramics International
volume
46
issue
5
pages
4 pages
publisher
Elsevier
external identifiers
  • scopus:85075838983
ISSN
0272-8842
DOI
10.1016/j.ceramint.2019.11.099
language
English
LU publication?
yes
id
d6d3c156-a615-4a92-99b8-1ccd7b10f053
date added to LUP
2019-12-12 06:16:10
date last changed
2022-04-18 19:22:58
@article{d6d3c156-a615-4a92-99b8-1ccd7b10f053,
  abstract     = {{<p>The oxygen reduction reaction (ORR) activity can strongly affect the performance of solid oxide fuel cells (SOFCs). To improve the electron transfer and enhance active sites for reactions in cathode, La<sub>0.8</sub>Sr<sub>0.2</sub>MnO<sub>3</sub> mixed with Y<sub>2</sub>O<sub>3</sub>-stabilized ZrO<sub>2</sub> (LSM/YSZ) nanofibers were co-fabricated by the electrospinning method. The fibers were well characterized and the electrochemical properties were evaluated by preparing a symmetrical sample with yttria-stabilized Zirconia (YSZ) pellet as electrolyte. The electrochemical impedance spectra reveal that appropriate grinding time can benefit an improved electrical conductivity and this nanostructure also has a porosity of up to 50%, which is expected to reduce the resistance of mass transfer and enhance the electron and ion transportation.</p>}},
  author       = {{Parbey, Joseph and Xu, Min and Lei, Jialong and Espinoza-Andaluz, Mayken and Li, Tingshuai and Andersson, Martin}},
  issn         = {{0272-8842}},
  keywords     = {{Cathode; Electrospinning; Impedance spectra; Solid oxide fuel cells}},
  language     = {{eng}},
  number       = {{5}},
  pages        = {{6969--6972}},
  publisher    = {{Elsevier}},
  series       = {{Ceramics International}},
  title        = {{Electrospun fabrication of nanofibers as high-performance cathodes of solid oxide fuel cells}},
  url          = {{http://dx.doi.org/10.1016/j.ceramint.2019.11.099}},
  doi          = {{10.1016/j.ceramint.2019.11.099}},
  volume       = {{46}},
  year         = {{2020}},
}