Xing Feilong, Ma Jiamin, Shimizu Ken-Ichi, Furukawa Shinya
Institute for Catalysis, Hokkaido University, N21, W10, Sapporo, 001-0021, Japan.
Japan Science and Technology Agency, PRESTO, Chiyodaku, Tokyo, 102-0076, Japan.
Nat Commun. 2022 Aug 29;13(1):5065. doi: 10.1038/s41467-022-32842-8.
The oxidative dehydrogenation of propane using CO (CO-ODP) is a promising technique for high-yield propylene production and CO utilization. The development of a highly efficient catalyst for CO-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 CeO with a PtSn intermetallic structure exhibits a considerably higher catalytic activity, CH selectivity, long-term stability, and CO 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, CO activation ability, thermal stability, and regenerable ability. The results obtained in this study can promote carbon-neutralization of industrial processes for light alkane conversion.
利用一氧化碳进行丙烷氧化脱氢（CO-ODP）是一种很有前景的高产丙烯生产和一氧化碳利用技术。开发用于CO-ODP的高效催化剂对化学工业以及净零排放具有重大意义且益处良多。在此，我们报告了一种基于高熵金属间化合物的独特催化剂材料和设计理念，用于应对这一具有挑战性的化学反应。负载在CeO上的具有PtSn金属间结构的六元（PtCoNi）(SnInGa)催化剂在600°C时表现出比先前报道的更高的催化活性、CH选择性、长期稳定性和CO利用效率。分别通过Co/Ni和In/Ga对Pt和Sn位点进行多金属化，极大地提高了丙烯选择性、CO活化能力、热稳定性和可再生能力。本研究获得的结果可促进轻质烷烃转化工业过程的碳中和。
