Stable anchoring of single rhodium atoms by indium in zeolite alkane dehydrogenation catalysts

• DOI: 10.1126/science.adk5195
• Publication Date: 2024-02-29T19:01:18Z
• Authors: Lei Zeng; Kang Cheng; Fanfei Sun; Qiyuan Fan; Laiyang Li; Qinghong Zhang; Yao Wei; Wei Zhou; Jincan Kang; Qiuyue Zhang; Mingshu Chen; Qiunan Liu; Liqiang Zhang; Jianyu Huang; Jun Cheng; Zheng Jiang; Gang Fu; Ye Wang
• Keywords: Propane; Alkane

Maintaining the stability of single-atom catalysts in high-temperature reactions remains extremely challenging because migration metal atoms under these conditions. We present a strategy for designing stable by harnessing second to anchor noble atom inside zeolite channels. A rhodium-indium cluster catalyst is formed silicalite-1 through situ indium during alkane dehydrogenation. This demonstrates exceptional against coke formation 5500 hours continuous pure propane dehydrogenation with 99% propylene selectivity and conversions close thermodynamic equilibrium value at 550°C. Our also operated stably 600°C, offering >60% >95%.