Studying Reaction Mechanisms in Solution Using a Distributed Electron Microscopy Method.
ACS Nano
; 15(6): 10296-10308, 2021 06 22.
Article
em En
| MEDLINE
| ID: mdl-34077193
ABSTRACT
Electron microscopy (EM) of materials undergoing chemical reactions provides knowledge of the underlying mechanisms. However, the mechanisms are often complex and cannot be fully resolved using a single method. Here, we present a distributed electron microscopy method for studying complex reactions. The method combines information from multiple stages of the reaction and from multiple EM methods, including liquid phase EM (LP-EM), cryogenic EM (cryo-EM), and cryo-electron tomography (cryo-ET). We demonstrate this method by studying the desilication mechanism of zeolite crystals. Collectively, our data reveal that the reaction proceeds via a two-step anisotropic etching process and that the defects in curved surfaces and between the subunits in the crystal control the desilication kinetics by directing mass transport.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Tomografia com Microscopia Eletrônica
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article