Unraveling the capacitive effect in the vacancy-heterostructure WTe2/MoTe2 for hydrogen evolution reaction by the grand canonical potential kinetics

Wugang Wang; Soonho Kwon; Lai Xu; William A. Goddard

doi:10.1016/j.ijhydene.2022.06.150

Unraveling the capacitive effect in the vacancy-heterostructure WTe₂/MoTe₂ for hydrogen evolution reaction by the grand canonical potential kinetics

Wugang Wang
, Soonho Kwon
, Lai Xu
, William A. Goddard

Research output: Contribution to journal › Article › peer-review

Abstract

Heterostructure shows superior catalytic performance since it inherits the catalytic properties of the components, and has the advantages of van der Waals interaction. Herein, we build a vacancy-van der Waals heterostructure with MoTe₂ and WTe₂ which forms a capacitor tuning performance, playing an important role in the energy barrier balance of the catalytic reaction. By using the grand canonical reaction kinetics (GCP-K) to explore the electrocatalytic, we predict the Tafel slope of the HER reaction is 81.31 mV/dec through changing applied potential.

Original language	English
Pages (from-to)	28448-28461
Number of pages	14
Journal	International Journal of Hydrogen Energy
Volume	47
Issue number	66
DOIs	https://doi.org/10.1016/j.ijhydene.2022.06.150
Publication status	Published - 1 Aug 2022
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Differential capacitance
Grand canonical potential kinetics(GCP-K)
Transition metal dichalcogenides
Vacancy-heterostructure

Access to Document

10.1016/j.ijhydene.2022.06.150

Cite this

@article{3120093a8e8344e38c13967b5212cfe1,

title = "Unraveling the capacitive effect in the vacancy-heterostructure WTe2/MoTe2 for hydrogen evolution reaction by the grand canonical potential kinetics",

abstract = "Heterostructure shows superior catalytic performance since it inherits the catalytic properties of the components, and has the advantages of van der Waals interaction. Herein, we build a vacancy-van der Waals heterostructure with MoTe2 and WTe2 which forms a capacitor tuning performance, playing an important role in the energy barrier balance of the catalytic reaction. By using the grand canonical reaction kinetics (GCP-K) to explore the electrocatalytic, we predict the Tafel slope of the HER reaction is 81.31 mV/dec through changing applied potential.",

keywords = "Differential capacitance, Grand canonical potential kinetics(GCP-K), Transition metal dichalcogenides, Vacancy-heterostructure",

author = "Wugang Wang and Soonho Kwon and Lai Xu and Goddard, \{William A.\}",

note = "Publisher Copyright: {\textcopyright} 2022 Hydrogen Energy Publications LLC",

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doi = "10.1016/j.ijhydene.2022.06.150",

language = "English",

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AU - Wang, Wugang

AU - Kwon, Soonho

AU - Xu, Lai

AU - Goddard, William A.

PY - 2022/8/1

Y1 - 2022/8/1

N2 - Heterostructure shows superior catalytic performance since it inherits the catalytic properties of the components, and has the advantages of van der Waals interaction. Herein, we build a vacancy-van der Waals heterostructure with MoTe2 and WTe2 which forms a capacitor tuning performance, playing an important role in the energy barrier balance of the catalytic reaction. By using the grand canonical reaction kinetics (GCP-K) to explore the electrocatalytic, we predict the Tafel slope of the HER reaction is 81.31 mV/dec through changing applied potential.

AB - Heterostructure shows superior catalytic performance since it inherits the catalytic properties of the components, and has the advantages of van der Waals interaction. Herein, we build a vacancy-van der Waals heterostructure with MoTe2 and WTe2 which forms a capacitor tuning performance, playing an important role in the energy barrier balance of the catalytic reaction. By using the grand canonical reaction kinetics (GCP-K) to explore the electrocatalytic, we predict the Tafel slope of the HER reaction is 81.31 mV/dec through changing applied potential.

KW - Differential capacitance

KW - Grand canonical potential kinetics(GCP-K)

KW - Transition metal dichalcogenides

KW - Vacancy-heterostructure

UR - https://www.scopus.com/pages/publications/85133682464

U2 - 10.1016/j.ijhydene.2022.06.150

DO - 10.1016/j.ijhydene.2022.06.150

M3 - Article

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SP - 28448

EP - 28461

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

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