Two-Dimensional Molybdenum Carbide (MXene) as an Efficient Electrocatalyst for Hydrogen Evolution
Abstract
The hydrogen evolution reaction (HER) is an important energy conversion process that underpins many clean energy technologies including water splitting. Herein, we report for the first time the application of two-dimensional (2D) layered transition metal carbides, MXenes, as electrocatalysts for the HER. Our computational screening study of 2D layered M 2 XT x (M = metal; X = (C, N); and T x = surface functional groups) predicts Mo 2 CT x to be an active catalyst candidate for the HER. We synthesized both Mo 2 CT x and Ti 2 CT x MXenes, and in agreement with our theoretical predictions, Mo 2 CT x was found to exhibit far higher HER activity than Ti 2 CT x . Theory suggests that the basal planes of Mo 2 CT x are catalytically active toward the HER, unlike in the case of widely studied MoS 2, in which only the edge sites of the 2H phase are active. This work paves the way for the development of novel 2D layered materials that can be applied in a multitude of other clean energy reactions for a sustainable energy future.
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Low valence state titanium might play a key role in HER behavior.
“indicating the low state valence titaniummight play a key role in HER behavior [6, 36–38]”
From Hybrid MXene/reduced graphene oxide aerogel microspheres for hydrogen evolution reaction (2021) · cites this paper as [6]
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- Authors
- Seh, Z. W., Fredrickson, K. D., Anasori, B., Kibsgaard, J., Strickler, A. L., Lukatskaya, M. R., Gogotsi, Y., Jaramillo, T. F., & Vojvodic, A.
- Affiliations
- Agency for Science, Technology and Research (SG)
- SLAC National Accelerator Laboratory (US)
- Drexel University (US)
- Stanford University (US)
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
- Corresponding author
- Gogotsi, Yury
- Jaramillo, Thomas F.
- ORCID
- Venue
- ACS Energy Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-08-24
- Volume
- 1
- Issue
- 3
- Pages
- 589-594
- ISSN
- 2380-8195 (ISSN-L)
- OpenAlex
- W2497894926
- Cited by
- 1,482
- References
- 10
- Citations by year
- 2026: 94 · 2025: 148 · 2024: 166 · 2023: 195 · 2022: 203 · 2021: 167 · 2020: 181 · 2019: 158 · 2018: 109 · 2017: 53 · 2016: 8
- FWCI
- 29.62
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- ACS Energy Letters (publishedVersion)
- Funders
- Basic Energy Sciences
- Office of Science
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
- Physical Sciences › Materials Science › Materials Chemistry › MXene and MAX Phase Materials
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
- Keywords
- MXene, molybdenum carbide, Mo2CTx, hydrogen evolution reaction, electrocatalysts, two-dimensional layered materials, transition metal carbides, Ti2CTx, computational screening, water splitting, surface functional groups
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