Unusual Activity of Rationally Designed Cobalt Phosphide/Oxide ...
2022年3月7日 · Herein, we report a facile approach to enable the selective design of an electrochemically efficient cobalt phosphide oxide composite catalyst on carbon cloth (CoP-Co x O y /CC), with good activity and durability toward HER in alkaline medium (η 10 = −43 mV).
Phase‐controllable cobalt phosphide heterostructure for efficient ...
2024年7月25日 · The HER properties of cobalt phosphide-based catalysts were comprehensively investigated, and the CoP-Co 2 P/PC catalyst has excellent reactivity and ultra-high stability towards HER in alkaline and neutral media.
Trends in Alkaline Hydrogen Evolution Activity on Cobalt Phosphide ...
2020年8月26日 · Here, taking cobalt phosphide (CoP) as a model material, we establish the alkaline HER activity trends as a function of a fundamental property, the proportion of the unoccupied 3d orbital (Pun). By doping CoP with a range of 3d and 4d transition metals with different Pun, we show that the intrinsic alkaline HER kinetics increases with Pun.
Cobalt Phosphide - an overview | ScienceDirect Topics
Cobalt phosphide is a catalyst investigated for the hydrogen evolution reaction (HER) in chemistry. It is known for its electrocatalytic activity and can be modified to enhance its performance by adjusting its composition and structure.
Integrated strategies on cobalt phosphides-based electrocatalysts …
2024年2月28日 · Cobalt phosphide-based nanomaterials are evaluated as promising advocates for HER due to high catalytic activities, good stability, and rich defect. This review commences with an exploration of the synthetic pathways of CoP, including solid-phase, solution-phase along with electrochemical methods.
Hydrogen on Cobalt Phosphide | Journal of the American …
2019年9月3日 · Cobalt phosphide (CoP) is one of the most promising earth-abundant replacements for noble metal catalysts for the hydrogen evolution reaction (HER). Critical to HER is the binding of H atoms. While theoretical studies have computed preferred sites and energetics of hydrogen bound to transition metal phosphide surfaces, direct experimental ...
Cobalt phosphide-based electrocatalysts: synthesis and phase catalytic ...
Our studies indicate that the HER catalytic efficiency of transition metal phosphide catalysts can be improved significantly by adjusting active phase and carbon species structures. Cobalt phosphides have been used as promising electrocatalysts for catalyzing the hydrogen evolution reaction (HER) in acidic aqueous solutions.
Efficient hydrogen evolution catalysis using ternary pyrite-type cobalt …
2015年9月14日 · Here we present a combined theoretical and experimental study to establish ternary pyrite-type cobalt phosphosulphide (CoPS) as a high-performance Earth-abundant catalyst for electrochemical and...
Cobalt Phosphide Hollow Polyhedron as Efficient Bifunctional ...
2015年12月29日 · The as-prepared CoP hollow polyhedron, which have large specific surface area and high porosity providing rich catalytic active sites, show excellent electrocatalytic performances for both HER and OER in acidic and alkaline media, respectively, with onset overpotentials of 35 and 300 mV, Tafel slopes of 59 and 57 mV dec –1, and a current ...
Corrosion-resistant cobalt phosphide electrocatalysts for salinity ...
2023年11月24日 · The presence of the water layer without other ions can significantly improve HER efficacy and enhance catalyst corrosion-resistance because H 2 O molecules first adsorbs on catalysts, and then ...