Heterostructural MoO2/MoC2 microspheres for efficient electrocatalytic hydrogen evolution

•The heterostructural derived HxMoO3/C.•The microspheres displayed attractive stability as catalysts in electrocatalytic hydrogen evolution.•The MoO2/MoC2, active sites, high conductivity electron transport. Heterostructural MoO2/MoC2 microspheres prepared through the hydrothermal reaction with subs...

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Bibliographic Details
Published inMaterials letters Vol. 297; p. 129973
Main Authors Zhang, Ruizhi, Xiao, Xinyu, Wang, Ziye, Huang, Jingdong, Wang, Zhen, Dong, Yong, Liu, Jun
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 15.08.2021
Elsevier BV
Subjects
Electrocatalysis
Electrocatalysts
Heterostructure
Heterostructures
Hydrogen evolution
Hydrogen evolution reaction (HER)
Hydrothermal reactions
Low temperature
Materials science
Microspheres
Microstructure
Molybdenum oxides
MoO2/MoC2 microspheres
Nanoparticles
Sulfuric acid
Water splitting
Heterostructure
Nanoparticles
Hydrogen evolution reaction (HER)
Electrocatalysis
Microstructure
MoO2/MoC2 microspheres
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Summary:•The heterostructural derived HxMoO3/C.•The microspheres displayed attractive stability as catalysts in electrocatalytic hydrogen evolution.•The MoO2/MoC2, active sites, high conductivity electron transport. Heterostructural MoO2/MoC2 microspheres prepared through the hydrothermal reaction with subsequent low-temperature annealing were applied into electrocatalytic hydrogen evolution. The electrocatalyst of MoO2 /MoC2 exhibits good electrocatalytic activities in 0.5 M H2SO4 solution with a low overpotential of 161 mV at a current density of − 10 mA cm−2 and a Tafel slope of 69 mV dec−1. This study is beneficial for realizing the intrinsic electrocatalytic properties of molybdenum heterostructure materials for improving water splitting reactions.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2021.129973