Macroporous Inverse Opal-like MoxC with Incorporated Mo Vacancies for Significantly Enhanced Hydrogen Evolution

Feng Li, Xianglong Zhao, Javeed Mahmood, Mahmut Sait Okyay, Sun Min Jung, Ishfaq Ahmad, Seok Jin Kim, Gao Feng Han, Noejung Park, Jong Beom Baek

Research output: Contribution to journalArticlepeer-review

105 Scopus citations

Abstract

The hydrogen evolution reaction (HER) is one of the most important pathways for producing pure and clean hydrogen. Although platinum (Pt) is the most efficient HER electrocatalyst, its practical application is significantly hindered by high-cost and scarcity. In this work, an MoxC with incorporated Mo vacancies and macroporous inverse opal-like (IOL) structure (MoxC-IOL) was synthesized and studied as a low-cost efficient HER electrocatalyst. The macroporous IOL structure was controllably fabricated using a facile-hard template strategy. As a result of the combined benefits of the Mo vacancies and structural advantages, including appropriate hydrogen binding energy, large exposed surface, robust IOL structure and fast mass/charge transport, the synthesized MoxC-IOL exhibited significantly enhanced HER electrocatalytic performance with good stability, with performance comparable or superior to Pt wire in both acidic and alkaline solutions.
Original languageEnglish (US)
Pages (from-to)7527-7533
Number of pages7
JournalACS Nano
Volume11
Issue number7
DOIs
StatePublished - Jul 25 2017
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-09-23

ASJC Scopus subject areas

  • General Physics and Astronomy
  • General Materials Science
  • General Engineering

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