Efficient Electrocatalysts for Hydrogen Evolution Reaction Using Heteroatom-Doped MXene Nanosheet

Mahider Asmare Tekalgne, Ha Huu Do, Tuan Van Nguyen, Quyet Van Le, Jusung An, Sung Hyun Hong, Sang Hyun Ahn, Heemin Kang, Jong Seung Kim, Soo Young Kim

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

It is crucial to develop a low-cost hybrid electrocatalysts for hydrogen production. Due to their layered structure and strong electrical conductivity, MXene-based materials have been lately used more and more in energy storage devices. Herein, heteroatom- (boron and sulfur-) doped MXene (B, S-Ti3C2Tx) nanosheets are developed as efficient electrocatalysts for the hydrogen evolution reaction (HER). The synthesized B, S-Ti3C2Tx has a large surface area and exhibits excellent electrocatalytic activity in acidic media. The prepared B, S-2-Ti3C2Tx catalyst exhibits a low overpotential of -110 mV vs. reversible hydrogen electrode for the HER and a low Tafel slope of ∼54 mV dec-1. Furthermore, B, S-2-Ti3C2Tx shows a double-layer capacitance of 1.05 mF/cm2 and maintains a steady catalytic activity for the HER for over 1000 cycles.

Original languageEnglish
Article number8980888
JournalInternational Journal of Energy Research
Volume2023
DOIs
Publication statusPublished - 2023

Bibliographical note

Publisher Copyright:
© 2023 Mahider Asmare Tekalgne et al.

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

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