Heterostructured nanocatalysts to boost the hydrogen evolution reaction in neutral electrolyte

Yeji Park, Minki Jun, Taehyun Kwon, Jin Young Kim, Kwangyeol Lee

Research output: Contribution to journalReview articlepeer-review

3 Citations (Scopus)


Water electrolysis under neutral conditions is key to the practical production of H2 as a renewable energy source because of the minimized corrosion of the water electrolyzer and the direct use of seawater. However, the intrinsically slow kinetics of electrocatalytic water splitting in neutral conditions remains a formidable hurdle to the wide adoption of neutral water splitting technology. Ingenious and revolutionary design concepts for catalysts are thus in great demand to address this issue. Here, we systematically review the current development of HER catalysts in neutral media by categorizing them into three subgroups to address the issues associated with the elementary steps, respectively, of the HER mechanism. We also present the recent efforts to use nanocatalysts in practical water electrolyzers with neutral electrolytes or seawater. Finally, we discuss the present limitations and provide future research directions to guide the development of highly active and stable HER catalysts in neutral media.

Original languageEnglish
Article number100499
JournalChem Catalysis
Issue number2
Publication statusPublished - 2023 Feb 16

Bibliographical note

Publisher Copyright:
© 2022 Elsevier Inc.


  • SDG7: Affordable and clean energy
  • electrocatalyst
  • hydrogen evolution reaction (HER)
  • hydrogen production
  • nanocatalyst
  • neutral HER
  • water splitting

ASJC Scopus subject areas

  • Chemistry (miscellaneous)
  • Physical and Theoretical Chemistry
  • Organic Chemistry


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