Change search
ReferencesLink to record
Permanent link

Direct link
Direct preparation of CE0.8SM0.2O1.9 powders oxidized with H2O2 for low temperature SOFCS application
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology.
Show others and affiliations
2005 (English)In: Proceedings of the 3rd International Conference on Fuel Cell Science, Engineering, and Technology, ASME Press, 2005, 295-298 p.Conference paper (Refereed)
Abstract [en]

A novel method was developed to prepare fine doped ceria (DCO) powders directly. Ceria doped with 20 mol. % of samarium (Ce0.8Sm 0.2O1.9, SDC) was prepared by in-situ oxidization of hydroxide precipitates with H2O2 in the solutions. The resultant powder desiccated at 85°C overnight was characterized by X-ray diffraction (XRD), thermogravimetry /differential thermal analysis (TG/DTA), and transmission electron microscopy (TEM). The XRD pattern showed that the as-dried SDC powder is single phase with a cubic fluorite structure like that of pure CeO2. An anodesupported SOFC was also fabricated based on SDC and 20wt % (62mol. %Li2CO3-38 mol. %K2CO 3) composite electrolyte, LiNiO2 as cathode and NiO as anode, by cold pressing. Using hydrogen as the fuel and air as the oxidant, the I-V and I-P characteristics exhibit excellent performances and the maximum power densities are about 696, 469, 377 and 240 mWcm-2 at 650, 600, 550 and 500°C, respectively.

Place, publisher, year, edition, pages
ASME Press, 2005. 295-298 p.
Keyword [en]
Composite electrolyte, H2O2, Low temperature solid oxide fuel cells (LTSOFCs), Oxidization, Samarium doped ceria (SDC)
National Category
Energy Engineering
URN: urn:nbn:se:kth:diva-156577ISI: 000243400200041ScopusID: 2-s2.0-27744487359ISBN: 0791837645OAI: diva2:767227
3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005, 23 May 2005 through 25 May 2005, Ypsilanti, MI, United States

QC 20141201

Available from: 2014-12-01 Created: 2014-12-01 Last updated: 2014-12-01Bibliographically approved

Open Access in DiVA

No full text


Search in DiVA

By author/editor
Zhu, Bin
By organisation
Chemical Engineering and Technology
Energy Engineering

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 26 hits
ReferencesLink to record
Permanent link

Direct link