Electrospinning processing and microstructural characterization of Ce 0.78Gd0.2Sr0.02O2-δ fiber for a composite anode

Chen Chia Chou, Chun Feng Huang, Mangasa S. Firman, Ying Ying Wu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Fabrication of a fiber anode with a mixture of the Gd2O 3 and SrO co-doped ceria fibers and the Ni nano-catalyzer by using electrospinning and impregnated process were carried out for application in an intermediate temperature fuel cell (ITFC). Experimental results demonstrate that a uniform co-doped ceria fiber of 100 nm diameter could be spun at the concentration of PVP approximately 11.32 wt.% and electric field of 20 kV. The anodic films were prepared via a nickel wet dipping process and sintered at different temperatures. The micrograph of the anode sintered at 1200°C for1hr has a well defined microstructure in terms of electrolyte area covered with nickel and the triple phase boundary (TPB) between electrolyte, electrode and gas phase. Fiber anode exhibits low polarization resistance and high exchange current density due to formation of the reticular nano-fiber structure. Accordingly, using a new concept of combination of the nano-ceramic fiber and the Ni nano-particle for increasing the catalytic properties of anode is successfully proved, it is found that nano-fiber substituting to powder in anode could decrease the processing temperature of cell and maintain the porous structure of anode to increase the amount of TPB and restrain formation of agglomerates of nickel particles.

Original languageEnglish
Title of host publicationApplications of Engineering Materials
Pages2489-2493
Number of pages5
DOIs
Publication statusPublished - 2011 Aug 12
Externally publishedYes
Event2011 International Conference on Advanced Engineering Materials and Technology, AEMT 2011 - Sanya, China
Duration: 2011 Jul 292011 Jul 31

Publication series

NameAdvanced Materials Research
Volume287-290
ISSN (Print)1022-6680

Other

Other2011 International Conference on Advanced Engineering Materials and Technology, AEMT 2011
CountryChina
CitySanya
Period11/7/2911/7/31

Keywords

  • Anode
  • Electrospinning
  • Fiber
  • Fuel cell

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Chou, C. C., Huang, C. F., Firman, M. S., & Wu, Y. Y. (2011). Electrospinning processing and microstructural characterization of Ce 0.78Gd0.2Sr0.02O2-δ fiber for a composite anode. In Applications of Engineering Materials (pp. 2489-2493). (Advanced Materials Research; Vol. 287-290). https://doi.org/10.4028/www.scientific.net/AMR.287-290.2489