In situ reaction monitoring in heterogeneous catalysts by a benchtop NMR spectrometer

被引：16
|
作者：
Leutzsch, Markus [1 ]
Sederman, Andrew J. [1 ]
Gladden, Lynn F. [1 ]
Mantle, Michael D. [1 ]
机构：
[1] Dept Chem Engn & Biotechnol, Philippa Fawcett Dr, Cambridge CB3 0AS, England
来源：
MAGNETIC RESONANCE IMAGING | 2019年 / 56卷
基金：
英国工程与自然科学研究理事会;
关键词：
Heterogeneous catalysis; Benchtop NMR; Reaction kinetics; Porous materials; NMR relaxometry; NUCLEAR-MAGNETIC-RESONANCE; RELAXATION; CONVERSION; DIFFUSION; HYDROGENATION; SPECTROSCOPY; LIQUIDS; SYSTEM; PHASE; WATER;
D O I：
10.1016/j.mri.2018.09.006
中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
Understanding the reactivity and mass transport properties of porous heterogenous catalysts is important for the development of new materials. Whereas MRI has previously been used to correlate chemical kinetics and hydrodynamics under operando conditions, this paper demonstrates that a modem benchtop NMR spectrometer is a suitable alternative to obtain diverse reaction information in porous heterogeneous catalyst materials on a smaller scale. Besides information about the chemical conversion within the pores, it can also be used to study changes of surface interaction by T-1/T-2 NMR relaxometry techniques and changes in mass transport by PFG NMR from a single chemical reaction.
引用
收藏
页码：138 / 143
页数：6
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