Electrochemical investigation of TiO2/carbon nanotubes nanocomposite as anode materials for lithium-ion batteries

Huang, Hui; Zhang, W.K.; Gan, X.P.; Wang, C.; Zhang, L.

doi:10.1016/j.matlet.2006.04.053

Cited by 77 publications

(25 citation statements)

References 16 publications

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“…Two distinct potential plateaus are observed at around 1.75 and 1.88 V for charging (insertion of lithium) and discharging (extraction of lithium) respectively. The two plateaus are related to a transition between the tetragonal and orthorhombic phases with Li-intercalation into anatase TiO 2 [19,20,21,24]. The appearance of the two potential plateaus also confirms the formation of anatase TiO 2 .…”

Section: Resultsmentioning

confidence: 71%

Synthesis and electrochemical studies of a layered spheric TiO2 through low temperature solvothermal method

Zhang

Zheng

Liu

et al. 2009

Electrochimica Acta

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Section: Resultsmentioning

confidence: 71%

Synthesis and electrochemical studies of a layered spheric TiO2 through low temperature solvothermal method

Zhang

Zheng

Liu

et al. 2009

Electrochimica Acta

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“…It is notable that, as being employed as anode materials for LIBs, the cellulose-substance-derived metal oxide Langmuir XXXX, XXX, XXX−XXX possesses superior electrochemical performances because of its unique three-dimensional porous structures as compared with the counter material with nonporous structures prepared without using the cellulose template, which was demonstrated by our recent work. 42 Moreover, the current bioinspired titania matter showed much more superior electrochemical performances than the titania nanoparticles synthesized by a hydrolysis−precipitation procedure using Ti(O n Bu) 4 as the precursor (the reversible capacity was as low as 21 mA h/g after 75 cycles) 43 and the titania nanotube arrays loaded with AgNPs (the discharge capacity was ca. 115 mA h/g after 20 cycles).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Bioinspired Hierarchical Nanofibrous Silver-Nanoparticle/Anatase–Rutile-Titania Composite as an Anode Material for Lithium-Ion Batteries

Luo

Huang

2016

Langmuir

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A new bioinspired hierarchical nanofibrous silver-nanoparticle/anatase-rutile-titania (Ag-NP/A-R-titania) composite was fabricated by employing a natural cellulose substance (e.g., commercial laboratory cellulose filter paper) as the structural scaffold template, which was composed of anatase-phase titania (A-titania) nanotubes with rutile-phase titania (R-titania) nanoneedles grown on the surfaces and further silver nanoparticles (AgNPs) immobilized thereon. As it was employed as an anode material for lithium-ion batteries (LIBs), high reversible capacity, enhanced rate performance, and excellent cycling stability were achieved as compared with those of the corresponding cellulose-substance-derived nanotubular A-titania, R-titania, heterogeneous anatase/rutile titania (A-R-titania) composite, and commercial P25 powder. This benefited from its unique porous cross-linked three-dimensional structure inherited from the initial cellulose substance scaffold, which enhances the sufficient electrode/electrolyte contact, relieves the severe volume change upon cycling, and improves the amount of lithium-ion storage; moreover, the high loading content of the silver component in the composite improves the electrical conductivity of the electrode. The structural integrity of the composite was maintained upon long-term charge/discharge cycling, indicating its significant stability.

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“…Some of these applications are on a single nanotube, some on a bundle of CNTs, and others are based on a composite, whereby CNTs are used to reinforce a desired property of the host material for a specific application. [4][5][6][7] The ac-electrochemical impedance spectroscopy (ac-EIS) has been extensively used to probe mass and charge transport in electrochemical devices, such as chemical sensors, 8 batteries, 9 and fuel cells. 10 The advantages of ac-EIS analysis over the dc analysis include detail characterization of the local electrical behavior of materials.…”

Section: Introductionmentioning

confidence: 99%

Capacitive tunnels in single-walled carbon nanotube networks on flexible substrate

Iqbal

Eom

et al. 2012

Journal of Applied Physics

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Metal nanoantenna plasmon resonance lineshape modification by semiconductor surface native oxide J. Appl. Phys. 112, 044315 (2012) Nanostructured thin manganite films in megagauss magnetic field Appl. Phys. Lett. 101, 092407 (2012) Magnetic and dielectric properties of sol-gel derived nanoparticles of double perovskite Y2NiMnO6 J. Appl. Phys. 112, 044311 (2012) Universal mechanism for ion-induced nanostructure formation on III-V compound semiconductor surfaces Appl. Phys. Lett. 101, 082101 (2012) Additional information on J. Appl. Phys. We report the analysis of single-walled carbon nanotube networks, which are expected to be suitable as miniaturized flexible radio frequency RC filters and also have important implications for high frequency devices. The surface morphology obtained by atomic force microscopy shows that most of the growth on polypropylene carbonate substrate is homogeneous. The large value of peak intensity ratio of G and D band in Raman spectra indicates the high purity network. Nyquist plots of carbon nanotube networks on a flexible substrate are close to real circles, indicating that the material is conducting, and suggest a simple equivalent circuit having a resistor in parallel with a capacitor. The Bode plots give the dependence of real and imaginary impedances on frequency. While at high frequency, the impedance decreases, due to generation of capacitance between a single-walled carbon nanotube; at low frequency, it shows the normal behavior, having constant value. The tunnels among different carbon nanotubes are capable of storing electric charge. The accumulative capacitances of tunnels for three varied concentrations are calculated by electrochemical impedance spectroscopy simulations to fit the observed Nyquist plots.

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Electrochemical investigation of TiO2/carbon nanotubes nanocomposite as anode materials for lithium-ion batteries

Cited by 77 publications

References 16 publications

Synthesis and electrochemical studies of a layered spheric TiO2 through low temperature solvothermal method

Synthesis and electrochemical studies of a layered spheric TiO2 through low temperature solvothermal method

Bioinspired Hierarchical Nanofibrous Silver-Nanoparticle/Anatase–Rutile-Titania Composite as an Anode Material for Lithium-Ion Batteries

Capacitive tunnels in single-walled carbon nanotube networks on flexible substrate

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