期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 3, 页码 595-599出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta14275b
关键词
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资金
- Jinan University Outstanding Student Program
- National Natural Science Foundation of China [51102115, 21376104]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20104401120005]
- Chinese Ministry of Education [211208]
- Natural Science Foundation of Guangdong Province, China [S2013010012876]
A novel class of amorphous MnO2 nanowires with a worm-like (WL) nanostructure was prepared by electrodeposition and a possible formation mechanism was proposed. The specific capacitance of WL amorphous MnO2 was 2-3 times larger than that of its crystalline cotton-like MnO2 counterpart. The unique WL amorphous nanostructure is believed to significantly facilitate the electrochemical performance of MnO2. Flexible solid-state symmetric supercapacitors assembled with WL-MnO2 electrodes exhibited a high energy density of 6.3 W h kg(-1). These results demonstrate that the amorphous WL nanostructure grown on carbon fabric can serve as a promising electrode material for flexible and portable energy storage devices.
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