What does this research mean for the field?

Ar+ ion beam irradiation induces Te vacancies in monolayer 2H-MoTe2, triggering switchable room-temperature ferroelectricity that reversibly modulates and significantly enhances hydrogen evolution reaction (HER) catalytic activity. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.ESTABLISHES_NEW_DIRECTION.

What question did this study set out to answer?

This research aims to explore how ion beam irradiation affects ferroelectric properties and enhances hydrogen evolution reaction in 2H-MoTe2.

May 18, 2026ACS Applied Materials & Interfaces0 citations

Reversible Hydrogen Evolution Reaction Modulation in Monolayer 2H-MoTe2 via Ferroelectric Switch

Switchable Local Ferroelectric Order Enables Reversible HER Modulation in Irradiated 2H-MoTe 2

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Authors

MLM K Li BLBo Liu CTChongyang Tang

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Overview

Randomized trial demonstrates reversible modulation of hydrogen evolution reaction in monolayer 2H-MoTe2, suggesting a new approach for enhanced electrocatalytic performance.

Key Points

This research aims to explore how ion beam irradiation affects ferroelectric properties and enhances hydrogen evolution reaction in 2H-MoTe2.
Ion beam irradiation induced Te vacancies in monolayer 2H-MoTe2.
Used polarization-resolved SHG microscopy and SS-PFM for characterization.
Conducted polarity-dependent LSV to evaluate HER activity adjustments.
Hydrogen evolution reaction overpotential decreased with positive poling, while negative poling increased it, establishing a causal link between polarization state and HER.
Optimized hydrogen adsorption free energy improved from 1.86 eV to −0.27 eV following irradiation.
Demonstrated reversible 180° polarization switching with measurable phase hysteresis and amplitude butterfly loops.

Cite This Study

Li et al. (2026) studied this question.

synapsesocial.com/papers/6a0aad5c5ba8ef6d83b70cd6 https://doi.org/10.1021/acsami.6c05046

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May 18, 2026ACS Applied Materials & Interfaces0 citations

Reversible Hydrogen Evolution Reaction Modulation in Monolayer 2H-MoTe2 via Ferroelectric Switch

Switchable Local Ferroelectric Order Enables Reversible HER Modulation in Irradiated 2H-MoTe 2

View Full Paper

Ask AI

Bookmark

Authors

MLM K Li BLBo Liu CTChongyang Tang

Discussion

Member takes

Overview

Randomized trial demonstrates reversible modulation of hydrogen evolution reaction in monolayer 2H-MoTe2, suggesting a new approach for enhanced electrocatalytic performance.

Key Points

This research aims to explore how ion beam irradiation affects ferroelectric properties and enhances hydrogen evolution reaction in 2H-MoTe2.
Ion beam irradiation induced Te vacancies in monolayer 2H-MoTe2.
Used polarization-resolved SHG microscopy and SS-PFM for characterization.
Conducted polarity-dependent LSV to evaluate HER activity adjustments.
Hydrogen evolution reaction overpotential decreased with positive poling, while negative poling increased it, establishing a causal link between polarization state and HER.
Optimized hydrogen adsorption free energy improved from 1.86 eV to −0.27 eV following irradiation.
Demonstrated reversible 180° polarization switching with measurable phase hysteresis and amplitude butterfly loops.

Cite This Study

Li et al. (2026) studied this question.

synapsesocial.com/papers/6a0aad5c5ba8ef6d83b70cd6 https://doi.org/10.1021/acsami.6c05046

View Full Paper

Ask AI

Bookmark