Efficient Electrocatalyst for the Hydrogen Evolution Reaction Derived from Polyoxotungstate/Polypyrrole/Graphene

Efficient hydrogen evolution reaction (HER) from water by electrocatalysis using cost‐effective materials is critical to realize the clean hydrogen production. Herein, with controlling the structure and composition of polyoxotungstate/conductive polypyrrole/graphene (PCG) precursor precisely and fol...

Full description

Saved in:
Bibliographic Details
Published in:ChemSusChem 2017-06, Vol.10 (11), p.2402-2407
Main Authors: Wang, Xiao‐Li, Tang, Yu‐Jia, Huang, Wei, Liu, Chun‐Hui, Dong, Long‐Zhang, Li, Shun‐Li, Lan, Ya‐Qian
Format: Article
Language:English
Subjects:
Acidic oxides
Catalysis
Catalysts
Conductivity
Electrocatalysis
Electrochemistry - methods
Graphene
Graphite - chemistry
Hydrogen
Hydrogen - chemistry
hydrogen evolution reaction
Hydrogen evolution reactions
Hydrogen production
Nitrogen
Polymers - chemistry
polyoxotungstate
polypyrrole
Pyrroles - chemistry
Silicon Compounds - chemistry
Stability
Tungsten carbide
Tungsten Compounds - chemistry
Water - chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Efficient hydrogen evolution reaction (HER) from water by electrocatalysis using cost‐effective materials is critical to realize the clean hydrogen production. Herein, with controlling the structure and composition of polyoxotungstate/conductive polypyrrole/graphene (PCG) precursor precisely and followed by a temperature‐programmed reaction, we developed a highly active and stable catalyst: NC@WxC/NRGO (NC: nitrogen‐doped porous carbon, NRGO: nitrogen‐doped reduced graphene oxide). The composite presents splendid performance towards HER in acidic media, with a small onset overpotential of 24 mV versus RHE (reversible hydrogen electrode), a low Tafel slope of 58.4 mV dec−1, a low overpotential of 100 mV at 10 mA cm−2, and remarkable long‐term cycle stability. This is one of the highest HER catalysts among the tungsten carbide‐based materials ever reported. W‐onderful C‐atalyst: New 2 D tungsten carbide‐based materials (NC@WxC/NRGO) are synthesized by controlling the structure and composition of polyoxotungstate/conductive polypyrrole/graphene (PCG) precursor precisely and performing a temperature‐programmed reaction. The composite presents splendid performance toward the hydrogen evolution reaction (HER) in acidic media and is one of the highest HER catalysts among the tungsten carbide‐based materials.
ISSN:1864-5631
1864-564X
DOI:10.1002/cssc.201700276