2019
DOI: 10.1016/s1872-2067(19)63406-6
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Coupled cobalt-doped molybdenum carbide@N-doped carbon nanosheets/nanotubes supported on nickel foam as a binder-free electrode for overall water splitting

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Cited by 43 publications
(14 citation statements)
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“…Rather than monometallic catalysts, bimetallic catalysts usually offer an advantage over other metallic catalysts in terms of high catalytic activity and chemoselectivity due to the interaction between two metal elements. The electronic structure and geometry of the active metal surface can be adjusted by the combination of another metal, which will impart the bimetallic catalyst with unique physicochemical properties . Molybdenum carbide (Mo x C, 1 ≤ x ≤ 2) has been regarded as a promising material because of its Pt-like d -band electronic structure (by inducing carbon into the metal lattice), good chemical stability, and low cost. The inexpensive 3d metal (such as Co, Ni, and Cu)-modified Mo x C has shown advanced catalytic activity in water splitting, CO hydrogenation, and hydrodesulfurization (HDS). Despite the enormous progress made to this end, there still remain several urgent issues that need to be resolved. First, most of the 3d metal-modified Mo x C catalysts were applied in electrocatalysis or thermocatalysis, while their catalytic performance in selective hydrogenation at low temperatures (<100 °C) has rarely been reported.…”
Section: Introductionmentioning
confidence: 99%
“…Rather than monometallic catalysts, bimetallic catalysts usually offer an advantage over other metallic catalysts in terms of high catalytic activity and chemoselectivity due to the interaction between two metal elements. The electronic structure and geometry of the active metal surface can be adjusted by the combination of another metal, which will impart the bimetallic catalyst with unique physicochemical properties . Molybdenum carbide (Mo x C, 1 ≤ x ≤ 2) has been regarded as a promising material because of its Pt-like d -band electronic structure (by inducing carbon into the metal lattice), good chemical stability, and low cost. The inexpensive 3d metal (such as Co, Ni, and Cu)-modified Mo x C has shown advanced catalytic activity in water splitting, CO hydrogenation, and hydrodesulfurization (HDS). Despite the enormous progress made to this end, there still remain several urgent issues that need to be resolved. First, most of the 3d metal-modified Mo x C catalysts were applied in electrocatalysis or thermocatalysis, while their catalytic performance in selective hydrogenation at low temperatures (<100 °C) has rarely been reported.…”
Section: Introductionmentioning
confidence: 99%
“…The Co 2p 3/2 photoelectron line positions at ca. 781.0 and 786.3 eV were assigned to the main and satellite structure, respectively, of Co 2+ and/or Co 3+ associated with oxidized cobalt …”
Section: Resultsmentioning
confidence: 99%
“…781.0 and 786.3 eV were assigned to the main and satellite structure, respectively, of Co 2+ and/or Co 3+ associated with oxidized cobalt. 39 Mixed valencies were also observed for the iron in 7 and 8. According to the simulated fitting of the photoelectron lines, ca.…”
Section: Synthesis Ofmentioning
confidence: 92%
“…In order to compensate for the severe shortage of traditional fossil fuels, the development of sustainable and alternative energy storage devices and conversion technology has become an urgent demand. Among these, supercapacitors and electrocatalytic water splitting are two typical examples: supercapacitors have been regarded as a superb candidate due to their high power density, long-term cycling life, minimal safety concerns, etc.,but their low energy density has limited wide development; electrocatalytic water splitting technology is considered as a sustainable and clean approach to produce energy, but its industrialization is limited by high-cost electrocatalysts of the oxygen evolution reaction. Additionally, it is generally believed that the electrochemical properties of supercapacitors and OER electrocatalysts are closely connected with material exploration, selection, and design.…”
Section: Introductionmentioning
confidence: 99%