High-entropy intermetallics on ceria as efficient catalysts for the oxidative dehydrogenation of propane using CO2

Feilong Xing, Jiamin Ma, Ken-ichi Shimizu and Shinya Furukawa ()
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Feilong Xing: Hokkaido University
Jiamin Ma: Hokkaido University
Ken-ichi Shimizu: Hokkaido University
Shinya Furukawa: Hokkaido University

Nature Communications, 2022, vol. 13, issue 1, 1-10

Abstract: Abstract The oxidative dehydrogenation of propane using CO2 (CO2-ODP) is a promising technique for high-yield propylene production and CO2 utilization. The development of a highly efficient catalyst for CO2-ODP is of great interest and benefit to the chemical industry as well as net zero emissions. Here, we report a unique catalyst material and design concept based on high-entropy intermetallics for this challenging chemistry. A senary (PtCoNi)(SnInGa) catalyst supported on CeO2 with a PtSn intermetallic structure exhibits a considerably higher catalytic activity, C3H6 selectivity, long-term stability, and CO2 utilization efficiency at 600 °C than previously reported. Multi-metallization of the Pt and Sn sites by Co/Ni and In/Ga, respectively, greatly enhances propylene selectivity, CO2 activation ability, thermal stability, and regenerable ability. The results obtained in this study can promote carbon-neutralization of industrial processes for light alkane conversion.

Date: 2022
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DOI: 10.1038/s41467-022-32842-8

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