Core‐Shell Structured CoP@MoS₂ Electrocatalysts for Enhanced Hydrogen Evolution Reaction

Abstract

The hierarchical CoP@MoS2 hybrid was constructed by a solvothermal reaction of MoS2 nanosheets and CoP nanocubes. The resultant product exhibited a well‐defined core‐shell structure, in which MoS2 sheets were decorated on the surface of CoP nanocubes. As electrocatalyts of hydrogen evolution reaction (HER), the hybrid displayed a highly superior catalytic activity to pure MoS2 in acid media with a low overpotential of 201 mV at the current density of 10 mA cm−2, a small Tafel slope of 70.4 mV dec−1, and good stability. The excellent HER performance benefitted from the core‐shell morphology as well as the synergistic interaction between MoS2 and CoP components.

Engineering Ultrathin MoS2 Nanosheets on CoxP/Nitrogen‐Doped Carbon Nanocubes for Efficient Hydrogen Evolution

“…Such almost invisible P 2p signal accompanied by a strong PÀ O peak has been commonly found in cobalt phosphides. [21,[31][32][33][34] The XPS spectra of C 1s, N 1s, Mo 3d, and S 2p for both hybrids exhibit the similar characteristics, thereby we discuss the XPS data in detail by taking Co x P/NC@MoS 2 as a case. Three peaks located at 284.5, 285.3, and 288.5 eV in the C 1s spectrum are assigned to the sp 2 -hybridized C, CÀ N, and CÀ O, respectively (Figure 4c).…”

Dealloying Induced Manipulative Disruption of Ni2P–SnP Heterostructure Enabling Enhanced Hydrogen Evolution Reaction

“…The distinct core−shell structure facilitates in preventing the metal active sites from disintegration and enhances the interfacial area. 22,23 Doping/substitution in heteroatom as seen in previous works is known to further increase the performance by modulation of the electronic structure. NiCoP, 24,25 WMoP, 26 and NiMoP 27 significantly improved the electrocatalytic performance because of the synergy between different metal elements, which facilitates in exposing more active sites due to change in surface morphology or modulates the intrinsic electronic properties of the hybrids.…”