Atomic Dislocations and Bond Rupture Govern Dissolution Enhancement under Acoustic Stimulation.
acoustic stimulation
activation energy
atomic bond rupture
mineral dissolution
molecular dynamics simulations
Journal
ACS applied materials & interfaces
ISSN: 1944-8252
Titre abrégé: ACS Appl Mater Interfaces
Pays: United States
ID NLM: 101504991
Informations de publication
Date de publication:
09 Dec 2020
09 Dec 2020
Historique:
pubmed:
2
12
2020
medline:
2
12
2020
entrez:
1
12
2020
Statut:
ppublish
Résumé
By focusing the power of sound, acoustic stimulation (i.e., often referred to as sonication) enables numerous "green chemistry" pathways to enhance chemical reaction rates, for instance, of mineral dissolution in aqueous environments. However, a clear understanding of the atomistic mechanism(s) by which acoustic stimulation promotes mineral dissolution remains unclear. Herein, by combining nanoscale observations of dissolving surface topographies using vertical scanning interferometry, quantifications of mineral dissolution rates via analysis of solution compositions using inductively coupled plasma optical emission spectrometry, and classical molecular dynamics simulations, we reveal how acoustic stimulation induces dissolution enhancement. Across a wide range of minerals (Mohs hardness ranging from 3 to 7, surface energy ranging from 0.3 to 7.3 J/m
Identifiants
pubmed: 33258375
doi: 10.1021/acsami.0c16424
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM