Molybdenum disulfide composite materials with encapsulated copper nanoparticles as hydrogen evolution catalysts

Wang, Chuangye; Zhao, Wenjing; Jiang, Huixin; Cui, Mengyu; Yu, Jin; Sun, Ruixue; Lin, Xufeng; Zhang, Longli

doi:10.1039/d2ra02012b

Cited by 4 publications

(1 citation statement)

References 28 publications

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“…In addition, there is a high specific surface area and hierarchical pore structure for Ni-Co/Mo 2 C/Co 6 Mo 6 C 2 @C, which can accelerate material transfer in the process of HER. Therefore, Ni-Co/Mo 2 C/Co 6 Mo 6 C 2 @C demonstrates great superiority for HER in acidic and alkaline conditions, which also excels that of some reported transition-based catalysts for HER (Table S1) [32][33][34][35][36][37][38][39][40][41][42] .…”

Section: Background and Originality Contentmentioning

confidence: 99%

Small-size composite Ni-Co/Mo2C/Co6Mo6C2@C prepared by a anchoring calcination strategy for efficient hydrogen evolution reaction in the acidic and alkaline conditions

Gu,

Zhu,

Zheng

et al. 2024

Preprint

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A novel, cheap and high-efficiency nanocomposite Ni-Co/Mo2C/Co6Mo6C2@C has been successfully constructed through simple one-step carbonization method (N2). Due to the fact that polyethyleneimine (PEI) in the precursor can effectively anchor molybdenum-based Keggin-type polyoxometalate (PMo12) and layered double hydroxide (NiCo-LDH) through electrostatic and coordination interactions, it can avoid the aggregation of catalyst particles during the pyrolysis process. After the optimization, the obtained Ni-Co/Mo2C/Co6Mo6C2@C possesses small size (3-8 nm, concentrated at about 4.5 nm), large specific surface area and hierarchical pore structure. More important, Ni-Co/Mo2C/Co6Mo6C2@C presents remarkable hydrogen evolution reaction (HER) activity with low overpotentials in 0.5 M H2SO4 (102.3 mV) and 1 M KOH (95 mV) to afford the current density of 10 mA·cm-2, as well as small Tafel slopes of 82.49 mV dec-1 and 99.92 mV dec-1, respectively. Simultaneously, this catalyst also shows outstanding stability for 12 h without significant change in current density. Herein, such excellent catalytic performance of Ni-Co/Mo2C/Co6Mo6C2@C can put down to the synergistic effect between multiple components and the small size of the catalyst. This work provides unique insights into the preparation of efficient transition metal-based catalysts for HER.

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Section: Background and Originality Contentmentioning

confidence: 99%

Small-size composite Ni-Co/Mo2C/Co6Mo6C2@C prepared by a anchoring calcination strategy for efficient hydrogen evolution reaction in the acidic and alkaline conditions

Gu,

Zhu,

Zheng

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

Small-sized Ni-Co/Mo2C/Co6Mo6C2@C for efficient alkaline and acidic hydrogen evolution reaction by an anchoring calcination strategy

Gu,

Zhu,

Zheng

et al. 2024

Front. Chem. Sci. Eng.

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Copper molybdenum sulfide coupled with multi-walled carbon nanotube nanocomposite for robust water splitting process

Swathi,

Yuvakkumar,

Ravi

et al. 2024

Carbon

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Molybdenum disulfide composite materials with encapsulated copper nanoparticles as hydrogen evolution catalysts

Abstract: Encapsulation of copper nanoparticles by the electrochemical catalyst MoS2 effectively improved its HER performance.

Cited by 4 publications

References 28 publications

Small-size composite Ni-Co/Mo2C/Co6Mo6C2@C prepared by a anchoring calcination strategy for efficient hydrogen evolution reaction in the acidic and alkaline conditions

Small-size composite Ni-Co/Mo2C/Co6Mo6C2@C prepared by a anchoring calcination strategy for efficient hydrogen evolution reaction in the acidic and alkaline conditions

Small-sized Ni-Co/Mo2C/Co6Mo6C2@C for efficient alkaline and acidic hydrogen evolution reaction by an anchoring calcination strategy

Copper molybdenum sulfide coupled with multi-walled carbon nanotube nanocomposite for robust water splitting process

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