Electrodeposited cobalt phosphides with hierarchical nanostructure on biomass carbon for bifunctional water splitting in alkaline solution

Recent advances of biomass derived carbon-based materials for efficient electrochemical energy devices

“…Li et al fabricated CoP/C composite electrodes by using Magnolia leaves carbon lms as precursors. 168 As shown in Fig. 12c, the morphology is reserved aer carbonization, and this unique layered structure facilitates chemical diffusion and charge transport.…”

Electrochemical preparation of nano/micron structure transition metal-based catalysts for the oxygen evolution reaction

“…Phosphides have been widely developed as advanced OER catalysts owing to their good electrical conductivity and inherent metal properties. 171,172 It is worth noting that the real catalytic species of transition metal phosphide is the loose amorphous oxide layer produced during oxidation. 173,174 Furthermore, the internal metal phosphide also plays the role of charge collection, resulting in the rapid diffusion/transfer of the charge.…”

Carbon-Based Composites as Electrocatalysts for Oxygen Evolution Reaction in Alkaline Media

“…The activity toward oxygen evolution reaction can even be boosted by designing multi-component nitrides, such as porous Co 3 FeN x /N-doped carbon nanoleaf arrays supported by carbon cloth (named Co 3 FeN x /NC LACC) [144]. Hierarchical structure and heterointerfaces between Co Most recently, growing interest in terms of carbon-supported OER catalysts is related to transition-metal phosphides (TMPs), mostly due to their relatively low price and earthabundance reserves [81,[131][132][133]139,[141][142][143]147,148,200,201,[203][204][205][206][207][208][209][210]. The metal phosphides are thermodynamically less stable than corresponding metal hydroxides/oxides under oxidation potentials.…”

“…Usually, a solution with metal salt (nitrate, chloride), trisodium citrate, and NaH 2 PO 2 is used in a three-electrode system. Cyclic voltammetry (20 cycles at 5 mV s −1 from −1.3 to −0.3 V vs. Ag/AgCl) or chronopotentiometry (−1.2 V vs. saturated calomel electrode) modes can be used for deposition of metal phosphide phase [ 81 , 143 ].…”

“…Most recently, growing interest in terms of carbon-supported OER catalysts is related to transition-metal phosphides (TMPs), mostly due to their relatively low price and earth-abundance reserves [ 81 , 131 , 132 , 133 , 139 , 141 , 142 , 143 , 147 , 148 , 200 , 201 , 203 , 204 , 205 , 206 , 207 , 208 , 209 , 210 ]. The metal phosphides are thermodynamically less stable than corresponding metal hydroxides/oxides under oxidation potentials.…”