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author:

Tang, Chou-Kun (Tang, Chou-Kun.) [1] | Zheng, Xi (Zheng, Xi.) [2] | Chen, Xiao-Liang (Chen, Xiao-Liang.) [3] | Fu, Yu-Gang (Fu, Yu-Gang.) [4] | Lue, Qiu-Feng (Lue, Qiu-Feng.) [5] (Scholars:吕秋丰)

Indexed by:

Scopus SCIE

Abstract:

Electrocatalytic hydrogen production is an effective way to produce hydrogen energy, and the key is to find inexpensive and effective catalysts. Loading transition metal sulfides onto two-dimensional transition metal carbide (MXene) is an effective method to prepare cheap and high-performance hydrogen evolution reaction (HER) catalysts. In this study, Mo2TiAlC2 was etched with hydrofluoric acid to prepare Mo2TiC2Tx MXene, which was then composited with MoS2 and CoS2 to prepare defect-rich MoS2/CoS2@Mo2TiC2Tx composite by a hydrothermal method. MoS2/CoS2 provides a large number of active sites for electrocatalysis, while Mo2TiC2Tx MXene as a carrier not only provides nucleation and growth sites for MoS2/CoS2, but also increases the rate of electron transfer in HER process, which achieves good synergy between MoS2/CoS2 and Mo2TiC2Tx MXene. Consequently, MoS2/CoS2-2@Mo2TiC2Tx exhibits an excellent HER performance. When the current density reaches 10 mA cm-2, the optimal MoS2/CoS2-2@Mo2TiC2Tx catalyst only requires an overpotential of 80 mV, and exhibits good cycling stability and durability. This work gives a new idea for the preparation of efficient HER catalysts using non-precious metal composites to replace the precious Pt/C.

Keyword:

Electrocatalyst Hydrogen evolution reaction Mo2TiC2Tx MXene MoS2/CoS2

Community:

  • [ 1 ] [Tang, Chou-Kun]Fuzhou Univ, Coll Mat Sci & Engn, 2 Wulongjiang North Ave, Fuzhou 350108, Peoples R China
  • [ 2 ] [Zheng, Xi]Fuzhou Univ, Coll Mat Sci & Engn, 2 Wulongjiang North Ave, Fuzhou 350108, Peoples R China
  • [ 3 ] [Chen, Xiao-Liang]Fuzhou Univ, Coll Mat Sci & Engn, 2 Wulongjiang North Ave, Fuzhou 350108, Peoples R China
  • [ 4 ] [Fu, Yu-Gang]Fuzhou Univ, Coll Mat Sci & Engn, 2 Wulongjiang North Ave, Fuzhou 350108, Peoples R China
  • [ 5 ] [Lue, Qiu-Feng]Fuzhou Univ, Coll Mat Sci & Engn, 2 Wulongjiang North Ave, Fuzhou 350108, Peoples R China

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Source :

FLATCHEM

ISSN: 2452-2627

Year: 2023

Volume: 42

5 . 9

JCR@2023

5 . 9 0 0

JCR@2023

JCR Journal Grade:1

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 7

SCOPUS Cited Count: 7

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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