Early-d-metal Janus MXenes as near-thermoneutral hydrogen evolution electrocatalysts: role of anion identity and d-band asymmetry

January 1, 2026RSC AdvancesOpen Access

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Key Points

This research aims to explore alternatives to platinum-based catalysts for the hydrogen evolution reaction using Janus MXenes.
Analyzed the hydrogen evolution reaction performance of early-d-metal Janus MXenes.
Examined the role of anion identity and d-band asymmetry in catalytic efficiency.
Evaluated materials for cost-effective and efficient electrocatalysis.
Janus MXenes demonstrated effective electrocatalytic activity for hydrogen evolution.
The identity of anions significantly influenced the performance of these materials.
D-band asymmetry was identified as a crucial factor in enhancing catalytic activity.

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Investigates hydrogen evolution using Janus MXenes, highlighting the impact of anion identity.

Identifying earth-abundant alternatives to platinum for the hydrogen evolution reaction (HER) remains a central challenge in electrocatalysis.

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Dutta et al. (2026) studied this question.

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