Crystalline/amorphous CoP/MnOx heterostructure derived from phase separation for electrochemical catalysis of alkaline hydrogen evolution reaction

MnOx-decorated MOF-derived nickel–cobalt bimetallic phosphide nanosheet arrays for overall water splitting

“…28 Metal oxide modification also represents a promising strategy for enhancing the catalytic activity and stability through the electronic coupling effect. For example, the HER and OER overpotential decreased significantly after decorating NiFeP with MnO x , as demonstrated by Yu et al 29 Therefore, MnO x modification can be an effective method to modulate the surface electronic state of the catalyst, thereby optimizing the electrocatalytic performance.…”

Ni/TiO2 heterostructures derived from phase separation for enhanced electrocatalysis of hydrogen evolution and biomass oxidative upgrading in anion exchange membrane electrolyzers

“…22 It should be noted that most studies in this area are focused on noble metal-based catalysts, and there is an obvious difference between noble metal-based and noble metal-free catalysts in the kinetic pH effect on HERs. 26–28 Therefore, it is necessary to investigate the properties of the electric double layer of noble metal-free catalysts ( e.g. , Ni/TiO 2 ) to gain a deep insight into the reaction mechanism of HERs.…”

“…Our group and other researchers have found that a single-phase bimetallic oxide precursor can be converted into a two-phase structure by the one-step phase separation method under specific conditions based on the difference in the transformation reaction of metal oxides in thermodynamics. 6,26,27,37 This phase-separation process is able to generate heterostructures with abundant and highly bonded interfaces, 27 and it is also conducive to increasing the specific surface area of components due to the crystal refinement derived from the steric effect between the two components. 26 Therefore, it is considered that the electrochemical performance of the Ni/TiO 2 heterostructure can be improved by this phase-separation method.…”

“…6,26,27,37 This phase-separation process is able to generate heterostructures with abundant and highly bonded interfaces, 27 and it is also conducive to increasing the specific surface area of components due to the crystal refinement derived from the steric effect between the two components. 26 Therefore, it is considered that the electrochemical performance of the Ni/TiO 2 heterostructure can be improved by this phase-separation method.…”