Preface:Special topic on Precise Catalysis Science and Technology

• 作者: Wenjie Shen
• 来源期刊: 中国科学：化学（英文版）
• 年，卷（期）: 2021,（7）
• 所属期刊栏目: EDITORIAL
• 页码范围: 1063-1064
• 页数: 2页
• 语种: 英文

摘要

Nanoparticles,clusters and single-atoms constitute the major types of metal catalysts.The size variation of metal species,known as size effect in heterogeneous catalysts,not only changed the geometric and electronic structure of metal atoms,but also altered their anchoring strength with the immobilizing supports,showing distinctively varied activ-ities.A gradual accumulation of large amounts of experi-mental data and theoretical calculations has unambitiously verified that the size of the metal species played a crucial role in determining the catalytic performance with respect to the geometric and electronic structures of active sites.However,it remains challenging to identify the intrinsic activity of the nanoparticles,clusters and single-atoms.The precise control of metal dispersion,coordination environment,and the me-tal-support electronic structure would provide quantitative description of the catalytic mechanisms of metal nano-particles,clusters,and single-atoms.Among them,metal clusters,containing few to tens or hundreds of atoms,are characterized by the exact formula and crystallographically structures,enabling to tailor the active sites and correlate the structure-reactivity relationship at atomic accuracy.Sig-nificant progress has been made in this field thanks to the advanced synthesis technique in atomic control of the clus-ters and their surroundings.The observed unique catalytic properties were linked to the atomic configurations of the specific cluster,which governed the adsorption and activa-tion of the reacting molecules.