Structure and solvation of confined water and water-ethanol clusters within microporous Brønsted acids and their effects on ethanol dehydration catalysis.
Journal
Chemical science
ISSN: 2041-6520
Titre abrégé: Chem Sci
Pays: England
ID NLM: 101545951
Informations de publication
Date de publication:
21 Jul 2020
21 Jul 2020
Historique:
received:
07
05
2020
accepted:
18
06
2020
entrez:
30
11
2020
pubmed:
1
12
2020
medline:
1
12
2020
Statut:
epublish
Résumé
Aqueous-phase reactions within microporous Brønsted acids occur at active centers comprised of water-reactant-clustered hydronium ions, solvated within extended hydrogen-bonded water networks that tend to stabilize reactive intermediates and transition states differently. The effects of these diverse clustered and networked structures were disentangled here by measuring turnover rates of gas-phase ethanol dehydration to diethyl ether (DEE) on H-form zeolites as water pressure was increased to the point of intrapore condensation, causing protons to become solvated in larger clusters that subsequently become solvated by extended hydrogen-bonded water networks, according to
Identifiants
pubmed: 33250979
doi: 10.1039/d0sc02589e
pii: d0sc02589e
pmc: PMC7690318
doi:
Types de publication
Journal Article
Langues
eng
Pagination
7102-7122Informations de copyright
This journal is © The Royal Society of Chemistry 2020.
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