Oxidative Dehydrogenation of Ethane Combined with CO2 Splitting via Chemical Looping on In2O3 Modified with Ni–Cu Alloy

IF 11.3 1区化学 Q1 CHEMISTRY, PHYSICAL

ACS Catalysis Pub Date : 2025-03-26 DOI:10.1021/acscatal.4c07737

Kosuke Watanabe, Takuma Higo, Koki Saegusa, Sakura Matsumoto, Hiroshi Sampei, Yuki Isono, Akira Shimojuku, Hideki Furusawa, Yasushi Sekine

引用次数: 0

Abstract

Modified In₂O₃ has the potential to be a better oxygen storage material due to its readily reducible surface and abundant bulk lattice oxygen released with a marked valence change from In³⁺ to In⁰. This work describes that In₂O₃ modified with a Ni–Cu alloy supports a chemical looping system consisting of oxidative dehydrogenation of ethane and CO₂ splitting at the low temperature of 873 K with a large oxygen capacity (>4 wt %). This reaction system is achieved through dynamic changes between Ni–Cu binary alloy and Ni–Cu–In ternary alloy associated with the redox of indium species. Meticulous material screening, characterization, and theoretical calculations have revealed that the Ni–Cu alloy promotes the redox of In₂O₃ by activating ethane and by incorporating reduced indium species.

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来源期刊

ACS Catalysis CHEMISTRY, PHYSICAL-

CiteScore

20.80

自引率

6.20%

发文量

1253

审稿时长

1.5 months

期刊介绍： ACS Catalysis is an esteemed journal that publishes original research in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. It offers broad coverage across diverse areas such as life sciences, organometallics and synthesis, photochemistry and electrochemistry, drug discovery and synthesis, materials science, environmental protection, polymer discovery and synthesis, and energy and fuels. The scope of the journal is to showcase innovative work in various aspects of catalysis. This includes new reactions and novel synthetic approaches utilizing known catalysts, the discovery or modification of new catalysts, elucidation of catalytic mechanisms through cutting-edge investigations, practical enhancements of existing processes, as well as conceptual advances in the field. Contributions to ACS Catalysis can encompass both experimental and theoretical research focused on catalytic molecules, macromolecules, and materials that exhibit catalytic turnover.