• 文献标题:   Graphene based electrodes for hydrogen fuel cells: A comprehensive review
  • 文献类型:   Review
  • 作  者:   DWIVEDI S
  • 作者关键词:   graphene, graphene oxide, hydrogen storage, fuel cell, energy storage
  • 出版物名称:   INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • ISSN:   0360-3199 EI 1879-3487
  • 通讯作者地址:  
  • 被引频次:   6
  • DOI:   10.1016/j.ijhydene.2022.02.051 EA NOV 2022
  • 出版年:   2022

▎ 摘  要

Today, the world is facing a great challenge to keep the environment as much clean and green as possible. Hydrogen fuel cells are envisaged for greener environment minimizing dependence on conventional natural energy resources. In this perspective, graphene-enhanced electrode materials can be the best bet for hydrogen storage for improving the performance of fuel cell applications. Graphene is fundamentally composed of single layer of graphite that consists of sp2- bonded carbon atoms forming a honeycomb or hexagonal type of lattice structure. Gra-phene provides a potential solid matrix for high capacity hydrogen storage. Loading of atomic hydrogen on graphene produces hydrogenated graphene modifying phonon and electronic properties. Multilayered graphene is more suitable than single-layered graphene for hydrogenation. On loading with hydrogen atoms, spa C-H bonds are developed on the basal plane of single-layer graphene. Hydrogen can be adsorbed on graphene either by physisorption (employing weak van der Waals forces) or by chemisorption (by chemical bonding i.e. ionic or covalent bonds with carbon atoms). In this work, a comprehensive review of the prominent reported works is presented on graphene enhanced electrode materials for hydrogen fuel cell applications. Various configurational attachment sites over graphene are discussed from a theoretical standpoint. Moreover, the review article has attempted to cover broader work on graphene enhanced electrode materials by presenting year-wise critical description of published research from 2016 to 2021. (c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.