DFT study of ionic liquids adsorption on circumcoronene shaped graphene

Abstract

Carbon materials have a range of properties such as high electrical conductivity, high specific surface area, and mechanical flexibility are relevant for electrochemical applications. Carbon materials are utilised in energy conversion-and-storage devices along with electrolytes of complementary properties. In this work, we study the interaction of highly concentrated electrolytes (ionic liquids) at a model carbon surface (circumcoronene) using density functional theory methods. Our results indicate the decisive role of the dispersion interactions that noticeably strengthen the circumcoronene-ion interaction. Also, we focus on the adsorption of halide anions as the electrolytes containing these ions are promising for practical use in supercapacitors and solar cells.

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• The electric double layer has a life of its own
• Simulations of room temperature ionic liquids: From polarizable to coarse-grained force fields
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Cited by in corpus (1)

• Graphene-ionic liquid interfacial potential drop from DFT-MD simulations