Development of highly efficient composite electrodes, CuFe2O4-La(Sr)Fe(Mn)O3, for High-Temperature Co-Electrolysis of CO2-Steam

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

3 被引用数 (Scopus)

抄録

La0.6Sr0.4Fe0.8Mn0.2O3-δ(LSFM) perovskite cathode has an advantage in product control for solid oxide electrolysis cell, while it limited by its insufficient electrolysis current density. To improve its electrochemical performance, we developed a highly efficient composite cathode by mixing LSFM with CuFe2O4 spinel. In this study, CO2/H2O co-electrolysis were investigated using CuFe2O4, LSFM and their composites as cathodes on LaGaO3- based electrolyte. It was found that mixing LSFM and CuFe2O4 was effective for a significant increase in the electrolysis current density in co-electrolysis. Compared to the individual LSFM (0.60 A/cm2) and CuFe2O4 (1.00 A/cm2) cathode, a promising electrolysis current density of 1.43 A/cm2 was achieved at 1.6 V and 800oC with excellent Coulombic efficiency (> 95% of theoretical value), remarkable operation stability and reversibility in co-electrolysis. In addition, a homogeneous and uniform surface morphology with a well-distributed porous structure was observed on the LSFM-CuFe2O4 composite layer after the operation.

本文言語英語
ホスト出版物のタイトル17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
出版社IOP Publishing Ltd.
ページ561-567
ページ数7
1
ISBN(電子版)9781607685395
DOI
出版ステータス出版済み - 2021
イベント17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021 - Stockholm, スウェーデン
継続期間: 7月 18 20217月 23 2021

出版物シリーズ

名前ECS Transactions
番号1
103
ISSN(印刷版)1938-6737
ISSN(電子版)1938-5862

会議

会議17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
国/地域スウェーデン
CityStockholm
Period7/18/217/23/21

!!!All Science Journal Classification (ASJC) codes

  • 工学一般

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