Prussian blue analogues derived binary nickel-cobalt selenide for enhanced pseudocapacitance and oxygen evolution reaction

Metal–Organic Framework-Derived Bimetallic NiFe Selenide Electrocatalysts with Multiple Phases for Efficient Oxygen Evolution Reaction

“…The distinct nanoparticle structure from gaseous selenization can expose a large number of active sites, thereby accelerating the reaction kinetics. 58,59 The monometallic FeSe 2 catalyst also depicts a distorted cubic morphology and homogeneous surface coverage on CFP (Figure S6).…”

“…The Brunauer–Emmett–Teller specific surface area (SSA) determined by N 2 sorption experiments further supports its argument: bimetallic selenide nanocrystals show a SSA of 104.62 m 2 g –1 , which is significantly larger than that of NiFe PBA, 29.16 m 2 g –1 (Figure S5). The distinct nanoparticle structure from gaseous selenization can expose a large number of active sites, thereby accelerating the reaction kinetics. , The monometallic FeSe 2 catalyst also depicts a distorted cubic morphology and homogeneous surface coverage on CFP (Figure S6).…”

A novel multi-walled carbon nanotube-coupled CoNi MOF composite enhances the oxygen evolution reaction through synergistic effects

“…Compared with the CoNi MOF, the binding energy of C 1s for the CoNi MOF-mCNTs shis negatively by 1.3 eV, with the shi in the peak position being related to the electron density of the outer layer of elements, which indicates that the mCNTs and CoNi MOF strongly interact. [35][36][37][38] The high-resolution Ni 2p spectra show peaks for Ni 2p 1/2 at 872.1 and 871.57 eV and Ni 2p 3/2 at 854.7 and 854.17 eV, which imply that Ni exists mainly in the form of Ni 2+ and Ni + in the CoNi MOF-mCNTs and CoNi MOF (Fig. 3C).…”

Recent Progress and Prospective of Nickel Selenide-Based Electrocatalysts for Water Splitting

“…Interface engineering is considered to be a feasible method to manipulate the material interface through doping, which could result in unique nanostructures and interfaces that can effectively regulate the electronic structure of nickel selenide, regulate hydrogen adsorption Gibbs energy and electrical conductivity, and thus promote electrocatalytic properties. − Zhang et al grew Mo, S-codoped NiSe nanosheet assemblies on nickel foam. The Mo doping can regulate the formation of NiSe morphology, and owing to the modulation of electronic structure, the performance of HER can be further improved by the partial substitution of S for Se (Figure a–c) …”