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Bimetallic Sites for Catalysis: From Binuclear Metal Sites to Bimetallic Nanoclusters and Nanoparticles
Chemical Reviews ( IF 51.4 ) Pub Date : 2023-03-27 , DOI: 10.1021/acs.chemrev.2c00733
Lichen Liu 1 , Avelino Corma 2
Affiliation  

Heterogeneous bimetallic catalysts have broad applications in industrial processes, but achieving a fundamental understanding on the nature of the active sites in bimetallic catalysts at the atomic and molecular level is very challenging due to the structural complexity of the bimetallic catalysts. Comparing the structural features and the catalytic performances of different bimetallic entities will favor the formation of a unified understanding of the structure–reactivity relationships in heterogeneous bimetallic catalysts and thereby facilitate the upgrading of the current bimetallic catalysts. In this review, we will discuss the geometric and electronic structures of three representative types of bimetallic catalysts (bimetallic binuclear sites, bimetallic nanoclusters, and nanoparticles) and then summarize the synthesis methodologies and characterization techniques for different bimetallic entities, with emphasis on the recent progress made in the past decade. The catalytic applications of supported bimetallic binuclear sites, bimetallic nanoclusters, and nanoparticles for a series of important reactions are discussed. Finally, we will discuss the future research directions of catalysis based on supported bimetallic catalysts and, more generally, the prospective developments of heterogeneous catalysis in both fundamental research and practical applications.

中文翻译:

用于催化的双金属位点:从双核金属位点到双金属纳米团簇和纳米粒子

多相双金属催化剂在工业过程中具有广泛的应用,但由于双金属催化剂的结构复杂,在原子和分子水平上对双金属催化剂中活性位点的性质进行基本了解非常具有挑战性。比较不同双金属实体的结构特征和催化性能将有助于形成对多相双金属催化剂结构-反应性关系的统一认识,从而促进现有双金属催化剂的升级。在这篇综述中,我们将讨论三种具有代表性的双金属催化剂(双金属双核位点、双金属纳米团簇、和纳米粒子),然后总结了不同双金属实体的合成方法和表征技术,重点是过去十年取得的最新进展。讨论了负载型双金属双核位点、双金属纳米团簇和纳米粒子在一系列重要反应中的催化应用。最后,我们将讨论基于负载型双金属催化剂的催化的未来研究方向,更广泛地说,是多相催化在基础研究和实际应用方面的未来发展。讨论了一系列重要反应的纳米粒子。最后,我们将讨论基于负载型双金属催化剂的催化的未来研究方向,更广泛地说,是多相催化在基础研究和实际应用方面的未来发展。讨论了一系列重要反应的纳米粒子。最后,我们将讨论基于负载型双金属催化剂的催化的未来研究方向,更广泛地说,是多相催化在基础研究和实际应用方面的未来发展。
更新日期:2023-03-27
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