In-site hydrogen bubble template method to prepare Ni coated metal meshes as effective bi-functional electrodes for water splitting

Abstract

From smooth metal mesh to metal mesh with porous structure after electrodeposition. The schematic diagram of electroplating cell and bubble template method reflects the experimental method of this study.

Biomimicry-inspired fish scale-like Ni3N/FeNi3N/NF superhydrophilic/superaerophobic nanoarrays displaying high electrocatalytic performance

“…In the literature, the construction of the hierarchical array structure on a flat substrate has been indicated to favor the infiltration of electrolytes, desorption of gases, and mass transport. [10][11][12][13][14][15] For example, Liang et al 16 prepared a nanowire array (Ni x Fe 1−x -AHNAs) catalytic material with a core-shell structure on the surface of nickel foam (NF) by a one-step chemical deposition method under the action of a magnetic field. The hierarchical nanoarray structure reduced the contact area between the bubbles and the electrode so that the gasliquid-solid three-phase contact angle of the catalytic material increased by 27.7°, and the gas repellency of the material improved.…”

Three-dimensional nickel nanowires modified by amorphous Fe nanosheets as electrocatalysts for the oxygen evolution reaction

“…Among recently reported non-PGM OER catalysts, nickel attracts significant attention due to its strong corrosion resistance in alkaline media, high activity, and low cost. Dong et al 11 deposited 3D nickel porous structure on different metal substrates to obtain electrode materials with high electrocatalytic activity in the HER and the OER. Wang et al 12 prepared highly stable honeycomb microstructure electrodes by the electrodeposition of W-doped α-Ni(OH) 2 on nickel foam.…”

Highly Efficient Spatial Three-Level CoP@ZIF-8/pNF Based on Modified Porous NF as Dual Functional Electrocatalyst for Water Splitting

“…It is used to construct porous structures of metals by using the hydrogen bubbles that overflow during the cathodic process of the electrodeposition reaction as a template, which has the advantages of low reaction temperature, short time and easy operation compared to common electrodeposition [50][51][52]. This method is often used to prepare porous materials of nickel, and porous nickel itself has a certain electrocatalytic performance for HER [53][54][55]. However, the preparation of porous nickel is mainly grown on flat metallic substrates and is correspondingly less explored in the deposition of nickel on uneven substrates.…”