Fast oxygen ion migration in Cu-In-oxide bulk and its utilization for effective CO2conversion at lower temperature

Jun Ichiro Makiura, Takuma Higo, Yutaro Kurosawa, Kota Murakami, Shuhei Ogo, Hideaki Tsuneki, Yasushi Hashimoto, Yasushi Sato, Yasushi Sekine

研究成果: Article査読

抄録

Efficient activation of CO2at low temperature was achieved by reverse water-gas shiftviachemical looping (RWGS-CL) by virtue of fast oxygen ion migration in a Cu-In structured oxide, even at lower temperatures. Results show that a novel Cu-In2O3structured oxide can show a remarkably higher CO2splitting rate than ever reported. Various analyses revealed that RWGS-CL on Cu-In2O3is derived from redox between Cu-In2O3and Cu-In alloy. Key factors for high CO2splitting rate were fast migration of oxide ions in the alloy and the preferential oxidation of the interface of alloy-In2O3in the bulk of the particles. The findings reported herein can open up new avenues to achieve effective CO2conversion at lower temperatures.

本文言語English
ページ(範囲)2108-2113
ページ数6
ジャーナルChemical Science
12
6
DOI
出版ステータスPublished - 2021 2 14

ASJC Scopus subject areas

  • Chemistry(all)

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