Discovery of Alloy Catalysts Beyond Pd for Selective Hydrogenation of Reformate via First‐Principle Screening with Consideration of H‐Coverage

作者：Jiayi Wang, Haoxiang Xu, Yihao Zhang, Jianguo Wu, Haowen Ma, Xuecheng Zhan, Jiqin Zhu, Daojian Cheng · 发表于：Angewandte Chemie International Edition · 年份：2024 · DOI：10.1002/anie.202317592 · 被引用次数：8 · 研究领域：Catalysis and Hydrodesulfurization Studies、Catalysts for Methane Reforming、Hydrogen Storage and Materials

Abstract The highly selective hydrogenation to remove olefins is a significant refining approach for the reformate. Herein, a library of transition metal for reformate hydrogenation is tested experimentally to validate the predictive level of catalytic activity from our theoretical framework, which combines ab initio calculations and microkinetic modeling, with consideration of surface H‐coverage effect on hydrogenation kinetics. The favorable H coverage of specific alloy surface under relevant hydrogenation condition, is found to be determined by its corresponding alloy composition. Besides, olefin hydrogenation rate is determined as a function of two descriptors, i.e. H coverage and binding energies of atomic hydrogen, paving the way to computationally screen on metal component in the periodic table. Evaluation of 172 bimetallic alloys based on the activity volcano map, as well as benzene hydrogenation rate, identifies prospective superior candidates and experimentally confirms that Zn 3 Ir 1 outperforms pure Pd catalysts for the selective hydrogenation refining of reformate. The insights into H‐coverage‐related microkinetic modelling have enabled us to both theoretically understand experimental findings and identify novel catalysts, thus, bridging the gap between first‐principle simulations and industrial applications. This work provides useful guidance for experimental catalyst design, which can be easily extended to other hydrogenation reaction.