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Title: Electrocatalytic Hydrogen Evolution and Hydrogen Oxidation with a Ni(PS) 2 Complex: Electrocatalytic Hydrogen Evolution and Hydrogen Oxidation with a Ni(PS) 2 Complex
NSF-PAR ID:
10039733
Author(s) / Creator(s):
 ;  ;  ;  
Publisher / Repository:
Wiley Blackwell (John Wiley & Sons)
Date Published:
Journal Name:
European Journal of Inorganic Chemistry
Volume:
2017
Issue:
31
ISSN:
1434-1948
Page Range / eLocation ID:
p. 3714-3719
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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  3. Abstract

    The development of non‐noble metal materials for efficient hydrogen evolution reaction (HER) in wide pH range is still a challenge at present. Herein, a predesigned polyoxometalate (POM)‐based metal–organic polymer {L3Co2 · 6H2O}[H3GeMo12O40] · 9H2O (L = 1,2,4‐triazole) is employed as bimetallic source together with thiourea converting to CoS2@MoS2on carbon cloth (CC) (abbreviated to CoS2@MoS2@CC) for the first time. Impressively, the CoS2@MoS2in the form of vertically interconnected nanoarrays with multiple interfaces are grown in situ on CC and act as electrodes directly for HER. The CoS2@MoS2@CC‐30h composite exhibits superb activity and long‐durability in both acidic and alkaline media. Low overpotential is achieved in 0.5mH2SO4(65 mV) and 1.0mKOH (87 mV) for 10 mA cm−2versus RHE, which overmatch major MoS2‐/POM‐based electrocatalysts. This work therefore may shed substantial lights on designing active and durable molybdenum‐based bi‐/polymetallic sulfide from variable POM‐based metal–organic polymers for electrocatalytic hydrogen evolution reaction in wide pH range.

     
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