TiO2 Nanotube Arrays Grafted with MnO2 Nanosheets as High-Performance Anode for Lithium Ion Battery

Zhu, Qinglin; Hu, Hao; Li, Guojian; Zhu, Chenbo; Yu, Ying

doi:10.1016/j.electacta.2015.01.023

Cited by 67 publications

(29 citation statements)

References 57 publications

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“…But the organic-based systems suffer from the use of highly toxic solvents and high fabrication cost. Yu et al 48 through a one-pot hydrothermal method synthesized unique TiO 2 nanotube arrays (TNAs) grafted with MnO 2 nanosheets for the first time as an anode for Li battery. They found that the thickness of MnO 2 nanosheet layer on the surface of TNAs has a significant impact on capacity, cycle performance and conductivity.…”

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confidence: 99%

A Synthesis Method of MnO₂/Activated Carbon Composite for Electrochemical Supercapacitors

Wang

Chen

2015

J. Electrochem. Soc.

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In this paper, a MnO 2 /activated carbon (AC) composite with high electrochemical performance is synthesized through a novel synthesis method (Grafting Oxidation Method). The structure and morphology are analyzed using X-ray diffraction, Fourier transmission infrared spectra, scanning electron microscopy and transmission electron microscopy. Additionally, the electrochemical properties are evaluated through cyclic voltammetry, electrochemical impedance spectra and galvanostatic cycling measurements. The results demonstrate this MnO 2 /AC composite owes homogeneous particle size of nanometer dimension. The quasi-rectangular and symmetric cyclic voltammetry curves of the composite, which are measured under a three-electrode electrochemical system with a 0.5 mol L −1 Na 2 SO 4 solution at room temperature, indicate it has an ability of rapidly reversible Faraday reaction and good electrochemical behavior. Compared to the MnO 2 /AC prepared through liquid-phase method, the composite prepared by grafting oxidation method exhibits a much higher specific capacitance which is up to 332.6 F g −1 at scanning rate of 2 mV s −1 . A laboratory capacitor assembled with this MnO 2 /AC composite electrode shows an average capacitance attenuation rate of just 0.0068% after 2000 cycles. Besides, the impedance tests results show that the charge transfer resistance of this composite is 0.92 , which is much lower than the composite (2.52 ) synthesized through liquid-phase method. Supercapacitors, also known as electrochemical capacitors or ultracapacitors, have attracted considerable interest worldwide, primarily because of their ability to provide higher power densities than batteries and higher energy densities than conventional dielectric capacitors. 1,2Because of these advantages, supercapacitors can be widely used in applications such as hybrid vehicles, electronic devices, and digital products. 3-6The most crucial factors determining the electrochemical performance rely on the electrode materials. The electrode-active materials that are widely used for supercapacitors include carbon, conducting polymers and transition-metal oxides. Considering the investigated electrode materials, transition metal oxides are considered to be good alternatives due to their high capacity from pseudocapacitance. 26 have investigated the charge storage mechanism of manganese dioxide compounds with various structures. They discovered that the capacitance of all amorphous compounds was due to faradaic processes localized at the surface and subsurface regions of the electrode. The capacitance of the crystallized materials is clearly dependent upon the crystalline structure, especially with the size of the tunnels that could be able to provide limited cations intercalation. It's also found that the interlayer spacing of the MnO 2 birnessite structure increased upon electrochemical oxidation in the presence of Na + cations in the electrolyte due to the deintercalation of Na + and the intercalation of H 2 O between the layers. 25However, a major drawba...

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confidence: 99%

A Synthesis Method of MnO₂/Activated Carbon Composite for Electrochemical Supercapacitors

Wang

Chen

2015

J. Electrochem. Soc.

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“…In addition, intercalation/deintercalation of titania offers good cycling stability, low volume expansion during charging/ discharging, and increased safety by virtue of the high Li-insertion potential (1.6-1.8 V vs. Li + /Li) [1,3,[12][13][14]. Unfortunately, in comparison with conventional anode materials, TiO 2 has a relatively low theoretical capacity of around 335 mAh g −1 , and intrinsically slow transport kinetics for both electrons and Li ions, which prevents this material from achieving optimal electrochemical performance [1,5,8,13,14]. The electrochemical application of titania depends strongly on its crystal structure, crystallite size, surface area, and thermal stability.…”

Section: Introductionmentioning

confidence: 99%

“…It is well known that anatase TiO 2 is more electrochemically active than the thermodynamically stable rutile TiO 2 . Anatase and rutile present a low specific capacity of 167.5 mAh g −1 [1,5,13,14].…”

Section: Introductionmentioning

confidence: 99%

“…Lithium-ion batteries (LIBs) have been widely applied as a power source for portable electronics, stationary energy storage systems, and electric vehicles, due to their high theoretical capacity, long cycle life, wide application temperature range, low cost, good safety performance, and environmental friendliness compared with other types of batteries [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Among potential candidates to replace the commonly used carbon (graphite) as anode material, titanium dioxide as well as titania-based materials have been investigated. Titanium dioxide has been recognized as one of the promising anode materials for LIBs among transition metal oxides, by virtue of its attractive properties which include low cost, high chemical stability, low solubility in organic solution, eco-friendliness, high energy density, and easy availability [5,7,10,12]. In addition, intercalation/deintercalation of titania offers good cycling stability, low volume expansion during charging/ discharging, and increased safety by virtue of the high Li-insertion potential (1.6-1.8 V vs. Li + /Li) [1,3,[12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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Titanium dioxide/graphene oxide composite and its application as an anode material in non-flammable electrolyte based on ionic liquid and sulfolane

Kurc

Siwińska-Stefańska

Jakóbczyk

et al. 2016

J Solid State Electrochem

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A composite of aminosilane-grafted TiO 2 (TA) and graphene oxide (GO) was prepared via a hydrothermal process. The TiO 2 /graphene oxide-based (TA/GO) anode was investigated in an ionic liquid electrolyte (0.7 M lithium bis(trifluoromethanesulfonyl)imide (LiNTf 2 )) in ionic liquid (N-methyl-N-propylpyrrolidinium bis(trifluoromethanesulfonyl)imide (MPPyrNTf 2 )) at room temperature and in sulfolane (1 M lithium hexafluorophosphate (LiPF 6 ) in tetramethylene sulfolane (TMS)). Scanning and transmission electron microscopy (SEM and TEM) observations of the anode materials suggested that the electrochemical intercalation/deintercalation process in the ionic liquid electrolyte with vinylene carbonate (VC) leads to small changes on the surface of TA/GO particles. The addition of VC to the electrolyte (0.7 M LiNTf 2 in MPPyrNTf 2 + 10 wt.% VC) considerably increases the anode capacity. Electrodes were tested at different current regimes in the range 5-50 mA g . The decrease in anode capacity with increasing current rate was interpreted as the result of kinetic limits of electrode operation. A much lower capacity was observed for the system TA/GO│1 M LiPF 6 in TMS + 10 wt.% VC│Li.

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Recent Progress in Self‐Supported Metal Oxide Nanoarray Electrodes for Advanced Lithium‐Ion Batteries

Zhang

2016

Advanced Science

109

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The rational design and fabrication of electrode materials with desirable architectures and optimized properties has been demonstrated to be an effective approach towards high‐performance lithium‐ion batteries (LIBs). Although nanostructured metal oxide electrodes with high specific capacity have been regarded as the most promising alternatives for replacing commercial electrodes in LIBs, their further developments are still faced with several challenges such as poor cycling stability and unsatisfying rate performance. As a new class of binder‐free electrodes for LIBs, self‐supported metal oxide nanoarray electrodes have many advantageous features in terms of high specific surface area, fast electron transport, improved charge transfer efficiency, and free space for alleviating volume expansion and preventing severe aggregation, holding great potential to solve the mentioned problems. This review highlights the recent progress in the utilization of self‐supported metal oxide nanoarrays grown on 2D planar and 3D porous substrates, such as 1D and 2D nanostructure arrays, hierarchical nanostructure arrays, and heterostructured nanoarrays, as anodes and cathodes for advanced LIBs. Furthermore, the potential applications of these binder‐free nanoarray electrodes for practical LIBs in full‐cell configuration are outlined. Finally, the future prospects of these self‐supported nanoarray electrodes are discussed.

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TiO2 Nanotube Arrays Grafted with MnO2 Nanosheets as High-Performance Anode for Lithium Ion Battery

Cited by 67 publications

References 57 publications

A Synthesis Method of MnO₂/Activated Carbon Composite for Electrochemical Supercapacitors

A Synthesis Method of MnO₂/Activated Carbon Composite for Electrochemical Supercapacitors

Titanium dioxide/graphene oxide composite and its application as an anode material in non-flammable electrolyte based on ionic liquid and sulfolane

Recent Progress in Self‐Supported Metal Oxide Nanoarray Electrodes for Advanced Lithium‐Ion Batteries

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TiO2 Nanotube Arrays Grafted with MnO2 Nanosheets as High-Performance Anode for Lithium Ion Battery

Cited by 67 publications

References 57 publications

A Synthesis Method of MnO2/Activated Carbon Composite for Electrochemical Supercapacitors

A Synthesis Method of MnO2/Activated Carbon Composite for Electrochemical Supercapacitors

Titanium dioxide/graphene oxide composite and its application as an anode material in non-flammable electrolyte based on ionic liquid and sulfolane

Recent Progress in Self‐Supported Metal Oxide Nanoarray Electrodes for Advanced Lithium‐Ion Batteries

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A Synthesis Method of MnO₂/Activated Carbon Composite for Electrochemical Supercapacitors

A Synthesis Method of MnO₂/Activated Carbon Composite for Electrochemical Supercapacitors