Electrochemical synthesis of hierarchical β-Ni(OH)2 nanostructures on conductive textiles

Hierarchical and porous β-Ni(OH)2 nanostructures (NSs) were synthesized on conductive textile (CT) substrates via a facile electrochemical deposition process. The formation of the β-Ni(OH)2 NSs and their structural morphology strongly depended on the deposition potential. At an optimum applied cathodic voltage of −0.75 V, the synthesized β-Ni(OH)2 exhibited hierarchical and flower-like NSs and were well decorated on the CT with high porosity and good crystallinity. By varying the growth time under a proper applied cathodic voltage condition, the density of decorated hierarchical β-Ni(OH)2 NSs on the CTs could be controlled and modified, which might have great potential for foldable electrode and electrochemical capacitor applications.

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► Hierarchical and porous β-Ni(OH)2 nanostructures were uniformly synthesized on conductive textiles via a facile electrochemical deposition process.
► β-Ni(OH)2 nanostructures were manufactured at low temperature (85 °C) and short process time (40 min).
► High porosity and extended specific surface area were shown in optimally decorated β-Ni(OH)2 on conductive textile.
► Density of hierarchical β-Ni(OH)2 nanostructures was readily controlled by varying growth time under proper applied cathodic voltage.