Electrochemical Collisions of Individual Graphene Oxide Sheets: An Analytical and Fundamental Study.
graphene oxide
impact electrochemistry
migration
single-entity electrochemistry
size characterization
Journal
ChemElectroChem
ISSN: 2196-0216
Titre abrégé: ChemElectroChem
Pays: Germany
ID NLM: 101679112
Informations de publication
Date de publication:
02 Jan 2020
02 Jan 2020
Historique:
received:
27
09
2019
revised:
25
11
2019
entrez:
31
1
2020
pubmed:
31
1
2020
medline:
31
1
2020
Statut:
ppublish
Résumé
We propose an analytical method based on electrochemical collisions to detect individual graphene oxide (GO) sheets in an aqueous suspension. The collision rate is found to exhibit a complex dependence on redox mediator and supporting electrolyte concentrations. The analysis of multiple collision events in conjunction with numerical simulations allows quantitative information to be extracted, such as the molar concentration of GO sheets in suspension and an estimate of the size of individual sheets. We also evidence by numerical simulation the existence of edge effects on a 2D blocking object.
Identifiants
pubmed: 31998598
doi: 10.1002/celc.201901606
pii: CELC201901606
pmc: PMC6973065
doi:
Types de publication
Journal Article
Langues
eng
Pagination
69-73Informations de copyright
© 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.
Déclaration de conflit d'intérêts
The authors declare no conflict of interest.
Références
Anal Chem. 2018 Nov 6;90(21):12923-12929
pubmed: 30284818
Chem Rev. 2012 Nov 14;112(11):6027-53
pubmed: 22889102
J Am Chem Soc. 2004 Jul 14;126(27):8360-1
pubmed: 15237976
J Phys Chem B. 2013 Apr 25;117(16):4371-80
pubmed: 23092206
Proc Natl Acad Sci U S A. 2015 Apr 28;112(17):5303-8
pubmed: 25870261
ACS Nano. 2015 Aug 25;9(8):8520-9
pubmed: 26190513
J Am Chem Soc. 2015 Jul 8;137(26):8376-9
pubmed: 26108405
J Am Chem Soc. 2014 Apr 2;136(13):4849-52
pubmed: 24641496
Chem Commun (Camb). 2014 Aug 4;50(60):8197-200
pubmed: 24927153
J Am Chem Soc. 2013 Apr 24;135(16):5994-7
pubmed: 23590646
Chem Soc Rev. 2010 Jan;39(1):228-40
pubmed: 20023850
Langmuir. 2015 Oct 27;31(42):11734-9
pubmed: 26474107
Nano Lett. 2008 Dec;8(12):4283-7
pubmed: 19367929