Paper Title:
Electrospinning Processing and Microstructural Characterization of Ce0.78Gd0.2Sr0.02O2-δ Fiber for a Composite Anode
  Abstract

Fabrication of a fiber anode with a mixture of the Gd2O3 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.

  Info
Periodical
Advanced Materials Research (Volumes 287-290)
Chapter
Hydrogen and Fuel Cell Science, Engineering & Technology
Edited by
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
Pages
2489-2493
DOI
10.4028/www.scientific.net/AMR.287-290.2489
Citation
C. C. Chou, C. F. Huang, F. Mangasa Simanjuntak, Y. Y. Wu, "Electrospinning Processing and Microstructural Characterization of Ce0.78Gd0.2Sr0.02O2-δ Fiber for a Composite Anode", Advanced Materials Research, Vols. 287-290, pp. 2489-2493, 2011
Online since
July 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Wei Tao Bao, Yin Zhu Jiang, Guang Yan Zhu, Jian Feng Gao, Guang Yao Meng
Abstract:Dense YSZ thin film with a thickness from 2 to 15 µm on porous Ni-YSZ anode support was fabricated by a novel powder coating process. The...
435
Authors: Go Hiramatsu, Yoshihiro Hirata, Soichiro Sameshima, Naoki Matsunaga
Abstract:Gd-doped ceria electrolyte (Ce0.8Gd0.2O1.9, GDC, 700 μm thick), 30 vol% Ni-GDC cermet anode and perovskite cathode La0.6Sr0.4CoO3 (LSC) or...
985
Authors: Xin Hui Zhang, Jie Zhang, Chao Yuan, Er Jun Liang
Chapter 7: Hydrogen and Fuel Cell
Abstract:Ceramic systems of template explains and demonstrates how to prepare your camera-ready Ceramic systems of Bi2O3 and La-doped SrTiO3 (LST)...
3325
Authors: Hong Lv, Yi Ping Tang, Ke Ao Hu
Chapter 7: Hydrogen and Fuel Cell
Abstract:Subscript textAn anode material of Ce sub>1-xFexO sub>2-δ (x=0.1, 0.2) for the oxidation of dry methane has...
1473