Electrochemical exfoliation of graphite using aqueous ammonium hydrogen carbonate solution and the ability of the exfoliated product as a hydrogen production electrocatalyst support

Electrochemical exfoliation of graphite has attracted much attention as a practical mass production of two-dimensional graphene-like materials. There is an increasing desire to find new and improved methods to create unique exfoliated products with excellent functionality. We used aqueous ammonium h...

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Bibliographic Details
Published in:Heliyon 2024-12, Vol.10 (23), p.e40751, Article e40751
Main Authors: Maekawa, Ryuichi, Kajiwara, Hirooki, Washiyama, Yuto, Nishikawa, Yasushi, Kuwamura, Naoto, Okura, Toshinori, Nishina, Yuta, Hashimoto, Hideki
Format: Article
Language:English
Subjects:
Carbon materials
Nanocomposites
Oxidation
Online Access:Get full text
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Summary:Electrochemical exfoliation of graphite has attracted much attention as a practical mass production of two-dimensional graphene-like materials. There is an increasing desire to find new and improved methods to create unique exfoliated products with excellent functionality. We used aqueous ammonium hydrogen carbonate solution as a new electrolyte for anodic oxidative exfoliation of graphite. The exfoliated product has a porous two-dimensional structure, and it can be dispersed in water for over five years. The oxidized and defected porous surface serves as an ideal support for molecular metal complexes, effectively functioning as heterogeneous electrocatalysts for hydrogen production.
ISSN:2405-8440
2405-8440
DOI:10.1016/j.heliyon.2024.e40751