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Tube-in-tube composite nanofibers with high electrochemistry performance in energy storage applications
- Source :
- Energy Storage Materials. 19:69-79
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- As a kind of excellent structure, nanotubes are combined with the advantages of the hollow structure and one-dimensional structure. Especially, the metal oxide nanotubes have broad application prospects in the field of energy storage and conversion. In this paper, we design a simple method to synthesize 12 kinds of carbon-coated tube-in-tube composite nanofibers (TiTCNFs) via a single-spinneret green electrospinning and subsequent pyrolysis processes, including carbon-coated metal TiTCNFs (Ni@C), carbon-coated single metal oxides TiTCNFs (Fe3O4@C, NiO@C, Co3O4@C, Mn3O4@C, CuO@C) and carbon-coated binary metal oxides TiTCNFs (CoFe2O4, CoMn2O4, MnFe2O4, NiCo2O4, NiFe2O4, NiMn2O4). The carbon-coated metal oxides TiTCNFs have superior electrochemical performances in Li-ion batteries and supercapacitors compared with hollow nanotube and pea-like structured composite nanofibers. The good electrochemical performances of TiTCNFs ascribe to the moderate carbon content, large specific surface area, and unique tube-in-tube structure effectively relieving the volume effect during the cycling process. The design and synthetic strategy is available for fabricating a wide variety of carbon-coated metal oxide nanotubes.
- Subjects :
- Supercapacitor
Nanotube
Materials science
Renewable Energy, Sustainability and the Environment
Oxide
Energy Engineering and Power Technology
chemistry.chemical_element
Nanotechnology
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
Electrochemistry
01 natural sciences
Electrospinning
Energy storage
0104 chemical sciences
chemistry.chemical_compound
chemistry
Specific surface area
General Materials Science
0210 nano-technology
Carbon
Subjects
Details
- ISSN :
- 24058297
- Volume :
- 19
- Database :
- OpenAIRE
- Journal :
- Energy Storage Materials
- Accession number :
- edsair.doi...........10456427938681f5ca536f08caff216c