Architecting carbon-coated Mo2CTx/MoSe2 heterostructures enables robust potassium storage

Jiang, Qingqing; Zhao, Weifang; Xu, Xinyue; Ke, Da; Ren, Ran; Zhao, Fuzhen; Zhang, Shilin; Zhou, Tengfei; Hu, Juncheng

doi:10.1039/d3cc03479h

Chem. Commun.

2023

DOI: 10.1039/d3cc03479h

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Architecting carbon-coated Mo₂CT_x/MoSe₂ heterostructures enables robust potassium storage

Qingqing Jiang,

Weifang Zhao,

Xinyue Xu

et al.

Abstract: Herein, carbon coated MoSe2 decorated Mo2CTx MXenes heterostructures (MoSe2/Mo2CTx@C) is fabricated, in which Mo2CTx works as dual-function electron/ion conductors, providing high conductivity and mechanical strength, as well as preventing the...

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Cited by 7 publications

References 32 publications

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Releasing Au Electrons to Mo Site for Weakened Mo─H Bond of Mo₂C MXene Cocatalyst Toward Improved Photocatalytic H₂ Production

Ke,

Wang,

Wang

et al. 2024

Small

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Mo2C MXene (Mo2CTx) is one of the most promising noble‐metal‐free cocatalysts for photocatalytic H2 production because of its excellent electron transport capacity and abundant Mo sites. However, Mo2CTx typically exhibits a strong Mo─Hads bond, resulting in that the produced H2 difficultly desorbs from the Mo surface for the limited activity. To effectively weaken the Mo─Hads bond, in this paper, a regulation strategy of electron donor Au releasing electrons to the d‐orbitals of Mo sites in Mo2CTx is proposed. Herein, the Mo2CTx‐Au/CdS photocatalysts are prepared through a two‐step process, including the initial loading of Au nanoparticles on the Mo2CTx surface and the subsequent in situ growth of CdS onto the Mo2CTx‐Au surface. Photocatalytic measurements indicate that the maximal H2‐production rate of Mo2CTx‐Au/CdS reaches up to 2799.44 µmol g−1 h−1, which is 30.99 and 3.60 times higher than that of CdS and Mo2CTx/CdS, respectively. Experimental and theoretical data corroborate that metallic Au can transfer free electrons to Mo2CTx to generate electron‐enriched Moδ‐ sites, thus causing the increased antibonding‐orbital occupancy state and the weakened Mo─Hads bond for the boosted H2‐production efficiency. This research provides a promising approach for designing Mo2CTx‐based cocatalysts by regulating the antibonding‐orbital occupancy of Mo sites for improved photocatalytic performance.

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Releasing Au Electrons to Mo Site for Weakened Mo─H Bond of Mo₂C MXene Cocatalyst Toward Improved Photocatalytic H₂ Production

Ke,

Wang,

Wang

et al. 2024

Small

View full text Add to dashboard Cite

show abstract

Reducing electron release of Mo sites in Mo2C MXene cocatalyst for efficient photocatalytic H2 generation

Ke,

Wang,

Wang

et al. 2025

Applied Catalysis B: Environment and Energy

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WS2-MoS2-biocarbon heterostructure for high-performance potassium ion storage

Wang,

Zhong,

Yang

et al. 2025

Applied Surface Science

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Architecting carbon-coated Mo₂CT_x/MoSe₂ heterostructures enables robust potassium storage

Abstract: Herein, carbon coated MoSe2 decorated Mo2CTx MXenes heterostructures (MoSe2/Mo2CTx@C) is fabricated, in which Mo2CTx works as dual-function electron/ion conductors, providing high conductivity and mechanical strength, as well as preventing the...

Cited by 7 publications

References 32 publications

Releasing Au Electrons to Mo Site for Weakened Mo─H Bond of Mo₂C MXene Cocatalyst Toward Improved Photocatalytic H₂ Production

Releasing Au Electrons to Mo Site for Weakened Mo─H Bond of Mo₂C MXene Cocatalyst Toward Improved Photocatalytic H₂ Production

Reducing electron release of Mo sites in Mo2C MXene cocatalyst for efficient photocatalytic H2 generation

WS2-MoS2-biocarbon heterostructure for high-performance potassium ion storage

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Architecting carbon-coated Mo2CTx/MoSe2 heterostructures enables robust potassium storage

Abstract: Herein, carbon coated MoSe2 decorated Mo2CTx MXenes heterostructures (MoSe2/Mo2CTx@C) is fabricated, in which Mo2CTx works as dual-function electron/ion conductors, providing high conductivity and mechanical strength, as well as preventing the...

Cited by 7 publications

References 32 publications

Releasing Au Electrons to Mo Site for Weakened Mo─H Bond of Mo2C MXene Cocatalyst Toward Improved Photocatalytic H2 Production

Releasing Au Electrons to Mo Site for Weakened Mo─H Bond of Mo2C MXene Cocatalyst Toward Improved Photocatalytic H2 Production

Reducing electron release of Mo sites in Mo2C MXene cocatalyst for efficient photocatalytic H2 generation

WS2-MoS2-biocarbon heterostructure for high-performance potassium ion storage

Contact Info

Product

Resources

About

Architecting carbon-coated Mo₂CT_x/MoSe₂ heterostructures enables robust potassium storage

Releasing Au Electrons to Mo Site for Weakened Mo─H Bond of Mo₂C MXene Cocatalyst Toward Improved Photocatalytic H₂ Production

Releasing Au Electrons to Mo Site for Weakened Mo─H Bond of Mo₂C MXene Cocatalyst Toward Improved Photocatalytic H₂ Production