Issue 98, 2015
From the journal:

RSC Advances

Inhibition and promotion of electrochemical reactions by graphene in organic coatings†

A. U. Chaudhry,*a   Vikas Mittalb  and  Brajendra Mishraa  

* Corresponding authors

a Metallurgical & Materials Engineering, Colorado School of Mines, CO, USA
E-mail: cusman@mines.edu
Tel: +1-303-273-3893

b Department of Chemical Engineering, The Petroleum Institute, Abu Dhabi, UAE

Abstract

Time-dependent electrochemical properties of graphene nanoplatelets (GP) and self-crosslinked polyvinyl butyral (PVB) composites are discussed. Electrochemical experiments in chloride medium revealed that GP offers short-term excellent protection from the physico-chemical mechanisms operating within the barrier. For longer periods of time, corrosion promotion was discovered due to induced porosity and electrochemical mechanisms related to excellent electrical conductivity and higher position in the galvanic series. This research has helped to understand the misleading anti-corrosion properties associated with graphene-polymer composite coatings.

Graphical abstract: Inhibition and promotion of electrochemical reactions by graphene in organic coatings

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Article information

DOI
https://doi.org/10.1039/C5RA12988E
Article type
Communication
Submitted
03 Jul 2015
Accepted
16 Sep 2015
First published
16 Sep 2015

RSC Adv., 2015,5, 80365-80368

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Inhibition and promotion of electrochemical reactions by graphene in organic coatings

A. U. Chaudhry, V. Mittal and B. Mishra, RSC Adv., 2015, 5, 80365 DOI: 10.1039/C5RA12988E

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