Development of Flowerlike Ce1-xZrxO2-d-Dispersed Paper-Structured Catalyst for Direct-Biogas SOFC

Phuc Hoan Tu, Mio Sakamoto, Kanzunari Sasaki, Yusuke Shiratori

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

Abstract

Ce0.5Zr0.5O2-d (CZ) with a high specific surface area and high oxygen storage capacity (OSC) was synthesized by a two-step hydrothermal process to obtain a flowerlike geometry, which can prevent the sintering of Ni under a reducing atmosphere. Durability tests on the prepared paper-structured catalysts (PSCs) for dry reforming of methane (DRM) at 750 C revealed that for both cases with and without CZ dispersion (Ni/CZ-PSC and Ni-PSC, respectively), the methane conversions were stable with degradation rates of 3.70% and 15.2% kh-1, respectively. After the one-week DRM test, the weights of the deposited carbon were 0.2 and 3.4 times those of the PSCs for Ni/CZ-PSC and Ni-PSC, respectively. Ni sintering and its detachment from the ceramic fiber that occurred in the Ni-PSC was solved by the dispersion of CZ (Ni/CZ-PSC) due to its unique morphology and high OSC.

Original languageEnglish
Title of host publication17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
PublisherIOP Publishing Ltd.
Pages1963-1970
Number of pages8
Edition1
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 2021
Event17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021 - Stockholm, Sweden
Duration: Jul 18 2021Jul 23 2021

Publication series

NameECS Transactions
Number1
Volume103
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
Country/TerritorySweden
CityStockholm
Period7/18/217/23/21

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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