Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 1, Issue 41, Pages 12885-12892Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta12503c
Keywords
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Funding
- NSFC [21173187]
- Qianjiang Talent Program of Zhejiang Province [2010R10046]
- RFDP [20100101110008]
- Fundamental Research Funds for the Central Universities
- NCET
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We report a novel silica co-electrodeposition route to prepare highly active nickel films. Firstly, Ni-SiO2 composite film was fabricated on a stainless steel substrate by electrodeposition, and then the SiO2 template was removed in alkaline electrolyte by consecutive cyclic voltammetry scans, leading to the formation of a porous Ni (po-Ni) matrix. The structure and morphology of the obtained films were characterized using Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The highly porous property of the po-Ni matrix is believed to be quite favourable for electrochemical applications. The electrochemical properties of the po-Ni film were evaluated by cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and steady-state polarization curves. The results showed that the porous Ni derived from the Ni-SiO2 composite film exhibits good electrochemical performance for potential use as a supercapacitor material and catalyst for water splitting.
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