Synthesis of sr2mgmoo6 by atmosphere-controlled calcination method and characterization for solid oxide fuel cells

Masahiro Kinoshita, Kyota Hara, Tomohiro Onozawa, Kiyoto Shin-Mura, Yu Otani, Seiya Ogawa, Eiki Niwa, Takuya Hashimoto, Kazuya Sasaki

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

1 Citation (Scopus)

Abstract

Sr2MgMoO6 is a B-site ordered double perovskite and a mixed ionic and electronic conductor in a reducing atmosphere at the anode. Owing to its high tolerance to carbon deposition and sulfur poisoning, it has been under investigation as a promising anode material for hydrocarbon-fueled solid oxide fuel cells. The powder synthesis process reported in previous studies is confusing and requires the use of expensive chemicals. In this study, a simple solid-state reaction method to synthesize high-purity Sr2MgMoO6 powder, based on conventional chemicals, is investigated. SrCO3 or Sr(NO3)2, MgO, and MoO3 were used as starting materials. Atmosphere-controlled calcinations using 5% H2/Ar and O2 as flow gases were alternatively performed at the proper sintering temperature (1000 and 1100°C). The successfully synthesized powder comprises a high-purity Sr2MgMoO6 phase. The reaction process was determined by analyzing the X-ray diffraction data at room and high temperatures. Crystal stability at high temperature in the reducing atmosphere was also evaluated; Sr2MgMoO6 is stable in 5% H2/Ar reducing atmosphere even at temperatures as high as 1300°C.

Original languageEnglish
Title of host publicationAdvances in Solid Oxide Fuel Cells and Electronic Ceramics II - A Collection of Papers Presented at the 40th International Conference on Advanced Ceramics and Composites, ICACC 2016
EditorsKiyoshi Shimamura, Mihails Kusnezoff, Narottam P. Bansal
PublisherAmerican Ceramic Society
Pages87-97
Number of pages11
Edition3
ISBN (Print)9781119040439
Publication statusPublished - 2017
Externally publishedYes
Event13th International Symposium on Solid Oxide Fuel Cells: Materials, Science, and Technology and Crystalline Materials for Electrical, Optical and Medical Applications Symposium, SOFC 2016 - 40th International Conference on Advanced Ceramics and Composites, ICACC 2016 - Daytona Beach, United States
Duration: Jan 24 2016Jan 29 2016

Publication series

NameCeramic Engineering and Science Proceedings
Number3
Volume37
ISSN (Print)0196-6219

Conference

Conference13th International Symposium on Solid Oxide Fuel Cells: Materials, Science, and Technology and Crystalline Materials for Electrical, Optical and Medical Applications Symposium, SOFC 2016 - 40th International Conference on Advanced Ceramics and Composites, ICACC 2016
CountryUnited States
CityDaytona Beach
Period1/24/161/29/16

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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