Graphene-based electrocatalysts: Hydrogen evolution reactions and overall water splitting

Meena Nemiwal, Tian C. Zhang, Dinesh Kumar

Research output: Contribution to journalReview articlepeer-review

86 Scopus citations


Recently, carbon-based materials (e.g., graphene, carbon nanotubes, carbon quantum dots) have been used as electrocatalysts to catalyze the reactions such as hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and oxygen reduction reaction (ORR). Among them, graphene has attracted attention as an electrocatalyst, and its electrocatalytic performances have been improved by doping with metals and non-metals, surface and defect engineering, and hybrid development. In this perspective, the present paper reviewed the recent advances (2018 onwards) on the progress of graphene-based electrocatalysts for HER and overall water splitting (OWS). It is emphasizing strategies for optimizing electrocatalytic properties followed by challenges and future outlook. This review will provide the essential ideas and strategies that can help design graphene-based electrocatalysts of high performance that can be implemented for sustainable energy application.

Original languageEnglish (US)
Pages (from-to)21401-21418
Number of pages18
JournalInternational Journal of Hydrogen Energy
Issue number41
StatePublished - Jun 15 2021


  • Electrocatalysts
  • Graphene
  • Hydrogen evolution reaction
  • Overall water splitting

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology


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