Charge Regulation at a Nanoporous Two-Dimensional Interface.
Journal
ACS omega
ISSN: 2470-1343
Titre abrégé: ACS Omega
Pays: United States
ID NLM: 101691658
Informations de publication
Date de publication:
02 Feb 2021
02 Feb 2021
Historique:
received:
17
08
2020
accepted:
31
12
2020
entrez:
8
2
2021
pubmed:
9
2
2021
medline:
9
2
2021
Statut:
epublish
Résumé
In this work, we have studied the pH-dependent surface charge nature of nanoporous graphene. This has been investigated by membrane potential and by streaming current measurements, both with varying pH. We observed a lowering of the membrane potential with decreasing pH for a fixed concentration gradient of potassium chloride (KCl) in the Donnan dominated regime. Interestingly, the potential reverses its sign close to pH 4. The fitted value of effective fixed ion concentration (
Identifiants
pubmed: 33553867
doi: 10.1021/acsomega.0c03958
pmc: PMC7859941
doi:
Types de publication
Journal Article
Langues
eng
Pagination
2487-2493Informations de copyright
© 2021 The Authors. Published by American Chemical Society.
Déclaration de conflit d'intérêts
The authors declare no competing financial interest.
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