Fabrication of molybdenum and tungsten oxide, sulfide, phosphide (MoWO/MoWS/MoWP) porous hollow nano-octahedrons from metal-organic frameworks templates as efficient hydrogen evolution reaction electrocatalysts.

Author(s) Sun, B.; Yang, S.; Guo, Y.; Xue, Y.; Tian, J.; Cui, H.; Song, X.
Journal J Colloid Interface Sci
Date Published 2019 Apr 04

A metal-organic frameworks-derived sulfuration and phosphorization method is developed for constructing a hydrogen evolution reaction (HER) electrocatalyst (MoWOSP@C), which is composed of MoWO nanoparticles, MoWS nanosheets, and MoWP nanoparticles coated with a porous hollow carbon matrix. The three-dimensional MoWOSP@C nano-octahedron shows excellent catalytic activity with a low overpotential of -118 mV at a current density of -10 mA cm and a small Tafel slope of 74.1 mV dec, which are all higher than those of the single phase components. The outstanding performance of the MoWOSP@C is due to the highly exposed active sites and synergistic effects of the MoWS and MoWP, carbon conductive matrix and mesoporous hollow structures.

DOI 10.1016/j.jcis.2019.04.013
ISSN 1095-7103
Citation J Colloid Interface Sci. 2019;547:339349.

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