Electrochemical Collisions of Individual Graphene Oxide Sheets: An Analytical and Fundamental Study

Overview

Journal ChemElectroChem

Specialty Chemistry

Date 2020 Jan 31

PMID 31998598

Citations 5

Authors

Christophe Renault

Serge G Lemay

Affiliations

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Abstract

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.

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