Advanced electrocatalytic properties of nano-CoWO4 and CoWO4/nitrogen-doped graphene oxide as the anode materials of water electrolysis | Zendy

Zhu-Ping Nie | Zendy; Weiwei Ding | Zendy; Boxin Zhou | Zendy; Ran Huang | Zendy

Open Access

Advanced electrocatalytic properties of nano-CoWO4 and CoWO4/nitrogen-doped graphene oxide as the anode materials of water electrolysis

Author(s) -

Zhu-Ping Nie,

Weiwei Ding,

Boxin Zhou,

Ran Huang

Publication year - 2020

Publication title -

results in materials

Language(s) - English

Resource type - Journals

ISSN - 2590-048X

DOI - 10.1016/j.rinma.2020.100094

Subject(s) - high resolution transmission electron microscopy , materials science , graphene , electrochemistry , anode , nanorod , oxide , nano , x ray photoelectron spectroscopy , electrolysis , doping , chemical engineering , nanotechnology , composite material , chemistry , electrode , metallurgy , optoelectronics , transmission electron microscopy , electrolyte , engineering

The electrocatalytic performance of tungsten-based compounds was significantly enhanced via the crystal facets engineering, defect tuning, and combination with conductive 2D materials. Stating from Na2WO4·2H2O and CoCl2·6H2O we synthesized two types of nano-CoWO4 with different morphologies. The products were characterized by XRD, FE-SEM, HRTEM, XPS and EDS in details. The electrochemical performance of CoWO4 nanorods was obviously superior to CoWO4 nanodots due to the enhanced electrochemical active areas. Furthermore, CoWO4 and nitrogen-doped graphene oxides (NGO) composites were obtained under the similar synthetic conditions. As expected, the CoWO4/NGO composites showed significant improvement on electrochemical properties.

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