Electronic modulation of CoP nanosheets array by Zn doping as an efficient electrocatalyst for overall water splitting

Abstract

A zinc-doped CoP nanosheet catalyst (Zn-CoP/CF) grown in situ on a cobalt foam substrate with a three-dimensional array structure, can effectively improve the electrocatalytic overall water splitting performance due to the gradual dissolution of Zn.

La doping greatly enhances electrochemical alkaline seawater oxidation over Ni(OH)2 nanosheet

“…The two-dimensional characteristics show great potential for achieving high activity of catalysts due to structural advantages. 33–36 Furthermore, a homogeneous dispersion of La, Ni, and O elements is demonstrated by the energy dispersive X-ray (EDX) elemental mapping images of La–Ni(OH) 2 /NF (Fig. 1e).…”

Manipulating electron redistribution in platinum for enhanced alkaline water splitting kinetics

“…The structural attribute enhances the efficiency of gas transport channels and shortens the charge transfer pathway in electrocatalytic reactions, consequently improving the catalytic activity in water splitting. 17 The inset of Fig. 1c clearly presents the morphology of the Pt-NiFe-P nanorods.…”

“…Transition metal phosphides (TMPs) are ideal substrates for modulating the electronic properties of supported catalysts due to their multi-electronic orbitals, tunable component structures, abundant active sites, and excellent electrical conductivity, such as Zn-CoP/CF, 17 NiFe-P, 18–20 et al The combination of Pt and transition metal phosphides improves the HER performance of Pt in alkaline electrolytes. 21 However, further enhancement of their OER catalytic activity is essential to meet the requirements of water electrolysis with bifunctional characteristics.…”

Blocking the bimolecular pathway of water oxidation electrocatalyzed by copper porphyrin with a surfactant

“…[1][2][3][4] Electrocatalytic water splitting to generate hydrogen provides a clean and non-polluting method involving the oxygen evolution reaction (OER) at the anode and the hydrogen evolution reaction (HER) at the cathode. [5][6][7][8][9][10] However, the oxygen evolution reaction significantly reduces the efficiency of water splitting owing to the complicated 4e − /4H + process, which causes slow kinetics. [11][12][13] Hence, the OER process has become a key step in the whole water splitting reaction.…”