Flower-like hydrogenated TiO2(B) nanostructures as anode materials for high-performance lithium ion batteries

Zhang, Zhonghua; Zhou, Zhenfang; Nie, Sen; Wang, Honghu; Peng, Hongrui; Li, Guicun; Chen, Kezheng

doi:10.1016/j.jpowsour.2014.05.121

Cited by 83 publications

(54 citation statements)

References 36 publications

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“…(Wu et al 2014) also reported TiO 2 treated by the electrochemical hydrogenation doping exhibited a very high average specific capacitance of 20.08 mF cm -2 , about 20 times more than the pristine TiO 2 nanotube electrode. The improved electrochemical performance can be attributed to the enhanced oxygen vacancies of TiO 2 treated by hydrogen (Wheeler et al 2013;Wu et al 2014;Zhang et al 2014). To analyze the effect of carbon coating, CV curves of pristine H-TiO 2 /C, H-TiO 2 / MnO 2 , and H-TiO 2 /C/MnO 2 are showed in Fig.…”

Section: Electrochemical Performancementioning

confidence: 99%

H–TiO2/C/MnO2 nanocomposite materials for high-performance supercapacitors

Jiang

Zheng

et al. 2015

J Nanopart Res

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Functionalized TiO 2 nanotube arrays with decoration of MnO 2 nanoparticles (denoted as HTiO 2 /C/MnO 2 ) have been synthesized in the application of electrochemical capacitors. To improve both areal and gravimetric capacitance, hydrogen treatment and carbon coating process were conducted on TiO 2 nanotube arrays. By scanning electron microscopy and X-ray photoelectron spectroscopy, it is confirmed that the nanostructure is formed by the uniform incorporation of MnO 2 nanoparticles growing round the surface of the TiO 2 nanotube arrays. Impedance analysis proves that the enhanced capacitive is due to the decrease of charge transfer resistance and diffusion resistance. Electrochemical measurements performed on this H-TiO 2 /C/MnO 2 nanocomposite when used as an electrode material for an electrochemical pseudocapacitor presents quasi-rectangular shaped cyclic voltammetry curves up to 100 mV/s, with a large specific capacitance (SC) of 299.8 F g -1 at the current density of 0.5 A g -1 in 1 M Na 2 SO 4 electrolyte. More importantly, the electrode also exhibits long-term cycling stability, only *13 % of SC loss after 2000 continuous charge-discharge cycles. Based on the concept of integrating active materials on highly ordered nanostructure framework, this method can be widely applied to the synthesis of high-performance electrode materials for energy storage.

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Section: Electrochemical Performancementioning

confidence: 99%

H–TiO2/C/MnO2 nanocomposite materials for high-performance supercapacitors

Jiang

Zheng

et al. 2015

J Nanopart Res

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“…TiO 2 is generally used as one of the most popular photocatalysts with excellent catalytic properties [1][2][3]. Moreover, hollow structured TiO 2 exhibits superior photocatalytic activity compared to conventional particle materials because of its high surface area, and is one of the most intensively researched substances in recent years [4][5][6]. However, TiO 2 , as a wide band gap semiconductor ($3.0 or 3.2 eV), can utilize only w 5% of the full sunlight spectrum for the degradation of organic compounds, presenting a poor efficiency [7].…”

Section: Introductionmentioning

confidence: 99%

Cu2O/TiO2 heterostructured hollow sphere with enhanced visible light photocatalytic activity

Yin

Wang

et al. 2015

Materials Research Bulletin

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“…In contrast, TPTM/ATO with a lower O ad content tends to form weak oxidants (e.g. chemically absorbed ÁOH (MO x+1 )) on the membrane surface, which are expected to be less effective in degrading organic pollutants [22,24,29]. Intensity / a.u.…”

Section: Sem Analysismentioning

confidence: 99%

“…Several studies revealed that the powdered form of TMF exhibited outstanding photo- [23] and electrocatalytic properties [24] in photovoltaic processes [25,26] and photo-catalytic systems for water purification [27]. In our previous investigation [28], TMF nano-arrays have been successfully coated onto an anodic ozone diffuser made of porous titanium, causing the specific surface area of the virgin porous titanium substrate to increase by 200 times.…”

Section: Introductionmentioning

confidence: 99%

Using TiO2 Mesoflower Interlayer in Tubular Porous Titanium Membranes for Enhanced Electrocatalytic Filtration

Liu

Shi

et al. 2016

Electrochimica Acta

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Keywords:functionalized tubular porous titanium membrane TiO 2 mesoflower interlayer electrocatalytic filtration anodic catalytic oxidation A B S T R A C T The current study focuses on synthesis and characterization of novel functionalized anodic membranes for wastewater treatment. This membrane was prepared by first constructing a TiO 2 mesoflower interlayer on a tubular porous titanium membrane and subsequently coating an antimony-doped tin oxide catalytic layer. Physical and electrochemical characterizations of the membranes were evaluated. With TiO 2 mesoflower, the membrane anode obtained a higher oxygen evolution potential, 2.22 V (vs saturated calomel electrode), relative roughness factor (701.7), and electrochemical porosity (99.23%) than membrane anodes without TiO 2 mesoflower. The prepared membrane anode also achieved a low charge-transfer (0.11 V) and mass-transfer resistance (0.21 V) in filtration mode. The unique features were found linked to its 3-D porous and open structure, and formation of a Ti 0.2 Sn 0.8 O 2 sosoloid that had a high surface oxygen (O ad ) content. The electrocatalytic filtration performance of this membrane was also tested using methyl orange as a model organic pollutant. At a current density of 15 mA cm À2 , the membrane achieved a higher 71.0% removal of methyl orange than 58.0% for the membrane without TiO 2 mesoflower. At a 58.0% removal of methyl orange, the membrane consumed a much lower energy of 0.20 kWh m À3 than 5.88 kWh m À3 for membrane anodes without TiO 2 mesoflower. The synthesized membrane electrode filter shows promise for future applications aimed to remove organic pollutants from wastewater.

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Flower-like hydrogenated TiO2(B) nanostructures as anode materials for high-performance lithium ion batteries

Cited by 83 publications

References 36 publications

H–TiO2/C/MnO2 nanocomposite materials for high-performance supercapacitors

H–TiO2/C/MnO2 nanocomposite materials for high-performance supercapacitors

Cu2O/TiO2 heterostructured hollow sphere with enhanced visible light photocatalytic activity

Using TiO2 Mesoflower Interlayer in Tubular Porous Titanium Membranes for Enhanced Electrocatalytic Filtration

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