期刊
SCRIPTA MATERIALIA
卷 178, 期 -, 页码 155-160出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2019.11.023
关键词
Nanoporous nickel; Interconnected pore channels; Nickel hydroxide; Template-directed electrodeposition; Supercapacitor
类别
资金
- National Natural Science Foundation of China [51674183]
- CONACYT Mexico [785987, 511417]
Nanoporous Ni with rational pore structure decorated with Ni(OH)(2) nanosheets (Ni(OH)(2)@NPN) was fabricated by a cost-effective process of template-directed electrodeposition combined with surface conversion. Nitrocellulose (NC) template controls the pore structure of NPN with interconnected pore channels and diameters of a few hundred nanometers, which provides short pathways for rapid electrolyte diffusion, and offers enough space for the growth of Ni(OH)(2) nanosheets. The direct conversion of Ni(OH)(2) nanosheets from the surface metallic Ni of NPN ensures a low contact resistance at the interface and high utilization of Ni(OH)(2). Benefiting from the structural features, Ni(OH)(2)@NPN shows significantly improved electrochemical performance. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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