期刊
MATERIALS LETTERS
卷 158, 期 -, 页码 119-122出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2015.06.008
关键词
Carbon nanotubes; Cellulose nanofibers; TiO2; Nanocomposites; Electrical properties
资金
- National Natural Science Foundation of China [31170514, 31370557]
- Graduate Cultivation Innovative Project of Jiangsu Province
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Doctoral Program of Higher Education [20113204110011]
- Analysis &Test Center of Nanjing Forestry University
Foldable and free-standing electrodes were fabricated using the macroporous cellulose nanofibers (CNFs) as the scaffold. Multi-walled carbon nanotubes (MCNTs) wrapped around the CNFs as the conductive skin, while the elongated (tens of microns) TiO2 nanotubes (TNTs) were interpenetrated within the MCNTs and macroporous CNFs network. Electrochemical analysis indicated that the hybrid electrodes displayed a high discharge capacity of 62.5 mF/cm(2) at 10 mV/s and a good cyclability with a capacity loss 5% after 1000 cycles at 0.5 mA/cm(2). The hybrid electrodes possessed highly mechanical property and could be folded back and forth as a paper airplane without mechanical failure. Therefore the low-cost, light-weight and foldable electrodes can be well applied as foldable all-solid-state supercapacitors. (C) 2015 Elsevier B.V. All rights reserved.
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