Vacancy-engineered catalysts for water electrolysis

Songa Choi, Yeji Park, Heesu Yang, Haneul Jin, Gracita M. Tomboc, Kwangyeol Lee

Research output: Contribution to journalReview articlepeer-review

28 Citations (Scopus)


The development of electrochemical energy conversion and storage technologies is pivotal to the full-fledged utilization of renewable energy sources. The successful commercial application of water electrolysis to produce hydrogen gas, in particular, requires highly active electrocatalysts that can operate for prolonged periods. However, the high activity and high durability of electrocatalysts are often mutually exclusive. Recent studies have demonstrated that vacancy engineering might effectively modulate the electronic structures of catalysts, which can lead to high catalytic activity. Furthermore, it has been shown that vacancies are closely related to catalyst stability under operational conditions. To understand the benefits of vacancies in the catalyst structures, we discuss the recent advances in the development of vacancy-engineered catalysts for water electrolysis. In addition, we discuss the present limitations in this nascent field and provide directions for valuable future research.

Original languageEnglish
Pages (from-to)1500-1513
Number of pages14
Issue number9
Publication statusPublished - 2020 Mar 7

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics


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