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https://hdl.handle.net/2115/86973

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

英語

2022-08-29

Nature Portfolio

Nature communications

13(1)

5065

The oxidative dehydrogenation of propane using CO2 is a promising technique for high-yield propylene production and CO2 utilization. Here the authors report a unique catalyst material and design concept based on high-entropy intermetallics for this challenging chemistry. 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 degrees 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.

学術雑誌論文

Version of Record

2041-1723