Advanced electrocatalytic properties of nano-CoWO(4) and CoWO(4)/nitrogen-doped graphene oxide as the anode materials of water electrolysis

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 Na(2)WO(4)·2H(2)O and CoCl(2)·6H(2)O we synthesized two types of nano-CoWO(4) with different morpholog...

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Detalles Bibliográficos
Autores principales: Nie, Zhuping, Ding, Weiwei, Zhou, Boxin, Huang, Ran
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Author(s). Published by Elsevier B.V. 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7194108/
http://dx.doi.org/10.1016/j.rinma.2020.100094
Descripción
Sumario: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 Na(2)WO(4)·2H(2)O and CoCl(2)·6H(2)O we synthesized two types of nano-CoWO(4) with different morphologies. The products were characterized by XRD, FE-SEM, HRTEM, XPS and EDS in details. The electrochemical performance of CoWO(4) nanorods was obviously superior to CoWO(4) nanodots due to the enhanced electrochemical active areas. Furthermore, CoWO(4) and nitrogen-doped graphene oxides (NGO) composites were obtained under the similar synthetic conditions. As expected, the CoWO(4)/NGO composites showed significant improvement on electrochemical properties.

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