Nuclear Spin Relaxation and Diffusion Studies of Adsorption and Dynamics at the Catalyst-Liquid Interface
Repository URI
Repository DOI
Change log
Authors
Abstract
The rational design of active materials for liquid-phase heterogeneous catalytic processes requires a detailed understanding of interactions occurring at the solid-liquid interface. The elucidation of such dynamics is of particular relevance to the study and development of solvated green chemical reaction processes, such as the production of chemicals and fuels from biomass. Nuclear spin relaxation time measurements have recently emerged as a novel tool for probing surface dynamics within such systems; herein, we detail the state-of-the-art of such measurements, and extend our current understanding of how such characteristics may be interpreted in terms of formal surface interaction phenomena.
Initially, a simple protocol is developed to illustrate the sensitivity of longitudinal nuclear spin relaxation to hydrogen-bond-mediated adsorption interactions occurring between a prototypical polar liquid (methanol) and a range of common mesoporous catalyst support materials (