Enhanced supercapacitor performance by fabricating hierarchical nanoporous nickel/nickel hydroxide structure
Enhanced supercapacitor performance by fabricating hierarchical nanoporous nickel/nickel hydroxide structure
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通过制造分层纳米多孔镍/氢氧化镍结构增强超级电容器性能
DOI:
10.1016/j.matlet.2015.06.035
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发表时间:
2015-11
影响因子:
3
通讯作者:
Wang Y.
中科院分区:
文献类型:
--
作者:
Qiu H. -J.;Peng L.;Li X.;Wang Y.
Hierarchical nanoporous Ni with both nanopores (less than 10 nm) and big pores/channels (hundreds nm) was fabricated by chemically dealloying a diluted Ni15Al85precursor in 1.0 M NaOH aqueous solutions. Due to the active property of nanoscale Ni, the Ni nano-ligaments can be easily converted to Ni/Ni(OH)2core–shell-like nano-composite by electrochemical oxidation. Compared with uniform nanoporous Ni, the hierarchical nanoporous Ni provides more void space and allows the formation of more active Ni hydroxides inside. Consequently, the hierarchical nanoporous metal/metal hydroxides composite exhibits a high areal capacitance (~4.76 F cm−2) with good rate performance and cycling stability.
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DOI:
10.1016/0020-0190(93)90155-3
发表时间:
1993-08
期刊:
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影响因子:
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作者:
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DOI:
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发表时间:
2012-02
期刊:
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影响因子:
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作者:
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影响因子:
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作者:
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通讯作者:
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