Electrophoretic deposition of YSZ thin-film electrolyte for SOFCs utilizing electrostatic-steric stabilized suspensions obtained via high energy ball milling

Zou, Yuan, Zhou, Wei, Sunarso, Jaka, Liang, Fengli and Shao, Zongping (2011) Electrophoretic deposition of YSZ thin-film electrolyte for SOFCs utilizing electrostatic-steric stabilized suspensions obtained via high energy ball milling. International Journal of Hydrogen Energy, 36 15: 9195-9204. doi:10.1016/j.ijhydene.2011.04.187


Author Zou, Yuan
Zhou, Wei
Sunarso, Jaka
Liang, Fengli
Shao, Zongping
Title Electrophoretic deposition of YSZ thin-film electrolyte for SOFCs utilizing electrostatic-steric stabilized suspensions obtained via high energy ball milling
Journal name International Journal of Hydrogen Energy   Check publisher's open access policy
ISSN 0360-3199
1879-3487
Publication date 2011-07
Sub-type Article (original research)
DOI 10.1016/j.ijhydene.2011.04.187
Volume 36
Issue 15
Start page 9195
End page 9204
Total pages 10
Place of publication Oxford, United Kingdom
Publisher Elsevier
Collection year 2012
Language eng
Formatted abstract
This manuscript describes a facile alternative route to make thin-film yttria-stabilized zirconia (YSZ) electrolyte by liquid-phase assisted electrophoretic deposition utilizing electrostatic-steric stabilized YSZ suspension followed by sintering. Very fine YSZ particles in ball-milled suspension facilitate their sustained dispersion through electrostatic mechanism as evidenced by their higher zeta potentials. Binder addition into the ballmilled suspension is also demonstrated to contribute complementary steric hindrance effects on suspension stability. As the consequence, the film quality and sinterability improve in the sequence of film made from non ball-milled suspension, film made from ball-milled suspension and film made from ball-milled suspension with binder addition. The specific deposition mechanisms pertaining to each suspension are also postulated and discussed below. A very thin dense electrolyte layer of ~10 µm can be achieved via electrophoretic deposition route utilizing ball-milled suspension and binder addition. This in turn, makes the electrolyte resistance a more negligible part of the overall cell resistance. Further on, we also tested the performance of SOFC utilizing as-formed 10 µm YSZ electrolyte i.e. YSZ-NiOjYSZjLSM (La0.8Sr0.2MnO3-δ), whereby a maximum power density of ~850 mW cm–2 at 850 ºC was demonstrated.
Keyword Solid oxide fuel cell
Electrolyte
Electrophoretic deposition
Suspension
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2012 Collection
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 14 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 14 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Sun, 28 Aug 2011, 01:49:18 EST by System User on behalf of School of Chemical Engineering