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Advanced solid-state NMR spectroscopy and its applications in zeolite chemistry
Progress in Nuclear Magnetic Resonance Spectroscopy ( IF 7.3 ) Pub Date : 2023-11-22 , DOI: 10.1016/j.pnmrs.2023.11.001
Mingji Zheng 1 , Yueying Chu 2 , Qiang Wang 2 , Yongxiang Wang 1 , Jun Xu 2 , Feng Deng 2
Affiliation  

Solid-state NMR spectroscopy (ssNMR) can provide details about the structure, host–guest/guest–guest interactions and dynamic behavior of materials at atomic length scales. A crucial use of ssNMR is for the characterization of zeolite catalysts that are extensively employed in industrial catalytic processes. This review aims to spotlight the recent advancements in ssNMR spectroscopy and its application to zeolite chemistry. We first review the current ssNMR methods and techniques that are relevant to characterize zeolite catalysts, including advanced multinuclear and multidimensional experiments, NMR techniques and hyperpolarization methods. Of these, the methodology development on half-integer quadrupolar nuclei is emphasized, which represent about two-thirds of stable NMR-active nuclei and are widely present in catalytic materials. Subsequently, we introduce the recent progress in understanding zeolite chemistry with the aid of these ssNMR methods and techniques, with a specific focus on the investigation of zeolite framework structures, zeolite crystallization mechanisms, surface active/acidic sites, host–guest/guest–guest interactions, and catalytic reaction mechanisms.

中文翻译:


先进的固态核磁共振波谱及其在沸石化学中的应用



固态核磁共振波谱 (ssNMR) 可以提供有关原子长度尺度上材料的结构、主客体/客体相互作用和动态行为的详细信息。 ssNMR 的一个重要用途是表征工业催化过程中广泛使用的沸石催化剂。本综述旨在重点介绍 ssNMR 光谱学的最新进展及其在沸石化学中的应用。我们首先回顾了当前与沸石催化剂表征相关的单链核磁共振方法和技术,包括先进的多核和多维实验、核磁共振技术和超极化方法。其中,半整数四极核的方法开发受到重视,半整数四极核约占稳定核磁共振活性核的三分之二,广泛存在于催化材料中。随后,我们介绍了借助这些 ssNMR 方法和技术了解沸石化学的最新进展,特别关注沸石骨架结构、沸石结晶机制、表面活性/酸性位点、主客体/客体-客体的研究相互作用和催化反应机制。
更新日期:2023-11-22
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