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author:

Dong, Jianing (Dong, Jianing.) [1] | Zhang, Xinnan (Zhang, Xinnan.) [2] | Huang, Jianying (Huang, Jianying.) [3] | Hu, Jun (Hu, Jun.) [4] | Chen, Zhong (Chen, Zhong.) [5] | Lai, Yuekun (Lai, Yuekun.) [6]

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EI

Abstract:

Developing non-Pt based electrocatalysts that are highly active and stable has attracted much attention to realize the blueprint of the 'hydrogen economy'. Herein, an efficient 3d hybrids electrocatalyst, consisting of in-situ reduced CoNi (CN) alloys and CoNi layered double hydroxides (CNL) activated 1T/2H molybdenum disulfide (MoS2), on carbon paper (CP) was proposed. Benefited from the interface effect for water activation and phase engineering for fast electron transfer, the CN/CNL/MoS2/CP exhibits excellent electrocatalytic activity for hydrogen evolution reaction (HER) with low overpotentials in a wide pH range (overpotential at −10 mA/cm2 (η10)= 112 mV in 0.5 M H2SO4, 106 mV in 1 M KOH and 145 mV in 1 M PBS, respectively). Moreover, the mechanisms of HER in alkaline and neutral media have been discussed in detail. It was discovered that the edge-sides of CN/CNL can promote the water dissociation to generate H protons to facilitate the subsequent steps on CN and MoS2 for the release of H2. © 2021 Elsevier B.V.

Keyword:

Alkalinity Cobalt alloys Electrocatalysts Electron transport properties Hydrogen economy Hydrogen evolution reaction Indium alloys Layered semiconductors Molybdenum compounds Potassium hydroxide Sulfur compounds Sulfuric acid

Community:

  • [ 1 ] [Dong, Jianing]National Engineering Research Center of Chemical Fertilizer Catalyst (NERC-CFC), College of Chemical Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 2 ] [Zhang, Xinnan]National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou; 215123, China
  • [ 3 ] [Huang, Jianying]National Engineering Research Center of Chemical Fertilizer Catalyst (NERC-CFC), College of Chemical Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 4 ] [Hu, Jun]School of Chemical Engineering, Northwest University, Xi'an; 710069, China
  • [ 5 ] [Hu, Jun]School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore; 639798, Singapore
  • [ 6 ] [Chen, Zhong]School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore; 639798, Singapore
  • [ 7 ] [Lai, Yuekun]National Engineering Research Center of Chemical Fertilizer Catalyst (NERC-CFC), College of Chemical Engineering, Fuzhou University, Fuzhou; 350116, China

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Source :

Chemical Engineering Journal

ISSN: 1385-8947

Year: 2021

Volume: 412

1 6 . 7 4 4

JCR@2021

1 3 . 4 0 0

JCR@2023

ESI HC Threshold:105

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 85

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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