Journal
MATERIALS RESEARCH BULLETIN
Volume 47, Issue 12, Pages 3947-3951Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2012.08.033
Keywords
Oxides; Electrochemical properties; Energy storage
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Funding
- Xinjiang University [BS090118]
- Chinese Ministry of Education [210245]
- National Natural Science Foundation of China [21061013, 21101132, 20963011, 21163021]
- Key Laboratory of Open Issue [XJDX0902-2009-02, XJDX0902-2009-05]
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Flower-like porous NiO was obtained by thermal decomposition of the precursor prepared by a hydrothermal process with hexamethylenetetramine and polyethylene glycol as hydrolysis-controlling agent and surfactant, respectively. The morphology and microstructure of as-synthesized NiO were characterized by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The resulting structures of NiO exhibited porous like petal building blocks. The electrochemical measurements' results demonstrated that flower-like porous NiO has high capacity (340 F g(-1)) with excellent cycling performance as electrode materials for electrochemical capacitors, which may be attributed to the unique structure of NiO. The results indicated that NiO with novel porous structure has been attractive for practical and large-scale applications in electrochemical capacitors. (C) 2012 Elsevier Ltd. All rights reserved.
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