Molecular Covalent Functionalization of Graphene and Its Derivatives: An Effective Strategy to Boost Electrocatalytic HER
Shivani, Xuan Thang Cao, Pavel Kopel, Subodh Kumar
TL;DR
This paper reviews how covalent functionalization of graphene improves its electrocatalytic performance for hydrogen production.
Contribution
The paper provides the first comprehensive review on molecular covalent functionalization of graphene for HER electrocatalysis.
Findings
Covalent functionalization enhances graphene's electronic structure and surface properties for better HER performance.
Synergistic effects between graphene support, linkers, and functional molecules improve electrocatalytic activity.
Key characteristics like conductivity and stability are critical for effective HER electrocatalysts.
Abstract
Graphene-based electrocatalysts have been developed, and they exhibited enhanced activity due to their superior electronic conductivity. The robustness of such graphene materials can be further enhanced by altering their chemical and physical properties using different techniques. Molecular covalent functionalization is one of the effective strategies to alter the chemical composition, electronic structure, surface area, as well as dispersibility of graphene materials. Despite the significant literature on its contribution to improving the electrocatalytic activity for the hydrogen evolution reaction (HER), there is no review article available. Therefore, we have tried to fill this void by examining recent developments in the field of molecular covalent functionalized graphene and its derivatives for water electrolysis. We have also thoroughly discussed the role of individual components…
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Taxonomy
TopicsElectrochemical Analysis and Applications · Molecular Junctions and Nanostructures · Conducting polymers and applications