物理化学学报2017，Vol.33Issue(2)：270-282,13.DOI:10.3866/PKU.WHXB201611022
固体酸催化剂结构与催化反应机理的核磁共振研究
Solid-State NMR Characterization of the Structure and Catalytic Reaction Mechanism of Solid Acid Catalysts
摘要
Abstract
Solid acid catalysts have been widely used in advanced petrochemical processes because of their environmental friendliness,high product selectivity,and easy product separation.Solid-state nuclear magnetic resonance (NMR) spectroscopy is a well-established tool for structure determination and dynamic study of various functional materials.In this review,we focus mainly on our research using solid-state NMR to characterize the acid properties and elucidate the catalytic reaction mechanism of solid acid catalysts.The acid strength of solid acids can be quantitatively measured from the chemical shifts of adsorbed probe molecules such as pyridine,acetone,trialkylphosphine oxides,and trimethylphosphine.The spatial proximity and synergetic effect of various acid sites on solid acid catalysts can be ascertained by two-dimensional (2D) double-quantum magic angle spinning (DQ MAS) NMR spectroscopy.Additionally,in situ solid-state NMR spectroscopy can be used to explore heterogeneous catalytic reaction mechanisms by monitoring the evolution of the reactants,intermediates,and products.关键词
固体核磁共振/酸表征/固体酸催化剂/催化反应机理/主客体相互作用Key words
Solid-state NMR/Acidity characterization/Solid acid catalyst/Reaction mechanism/Host-guest interaction分类
化学化工引用本文复制引用
李申慧,李静,郑安民,邓风..固体酸催化剂结构与催化反应机理的核磁共振研究[J].物理化学学报,2017,33(2):270-282,13.基金项目
The project was supported by the National Natural Science Foundation of China (21210005,21221064,21373265).国家自然科学基金(21210005,21221064,21373265)资助项目 （21210005,21221064,21373265）
