Evaluation of ZnO nanorod arrays with dandelion-like morphology as negative electrodes for lithium-ion batteries

Wang, Hongbo; Pan, Qinmin; Cheng, Yuexiang; Zhao, Jianwei; Yin, Geping

doi:10.1016/j.electacta.2008.11.019

Cited by 244 publications

(171 citation statements)

References 29 publications

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“…Manganese oxide, 18 25 have been widely investigated. All these MOs exhibit a large difference between the reduction and the oxidation potentials which can easily be calculated from thermodynamic data as demonstrated by Li et al 26 In addition, during experimental cycling a large overpotential is observed for both reactions due to slow kinetics associated with solid-state reactions; thus a large potential window is required in order to obtain an optimum capacity.…”

Section: 17mentioning

confidence: 99%

High capacity anode materials for Li-ion batteries based on spinel metal oxides AMn2O4 (A = Co, Ni, and Zn)

et al. 2011

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Manganites of transition and/or post-transition metals, AMn 2 O 4 (where A was Co, Ni or Zn), were synthesized by a simple and easily scalable co-precipitation route and were evaluated as anode materials for Li-ion batteries. The obtained powders were characterized by SEM, TEM, and XRD techniques. Battery cycling showed that ZnMn 2 O 4 exhibited the best performance (discharge capacity, cycling, and rate capability) compared to the two other manganites and their corresponding simple oxides. Further studies on the effect of different sintering temperatures (from 400 to 1000 C) on particle size were performed, and it is found that the size of the particles had a significant effect on the performance of the batteries. The optimum particle size for ZnMn 2 O 4 is found to be 75-150 nm. In addition, the use of water-soluble and environmentally friendly binders, such as lithium and sodium salts of carboxymethlycellulose, greatly improved the performance of the batteries compared to the conventional binder, PVDF. Finally, ZnMn 2 O 4 powder sintered at 800 C (<150 nm) and the use of the in-house synthesized lithium salt of carboxymethlycellulose (LiCMC) binder gave the best battery performance: a capacity of 690 mA h g À1 (3450 mA h mL À1 ) at C/10, along with good rate capability and excellent capacity retention (88%).

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Section: 17mentioning

confidence: 99%

High capacity anode materials for Li-ion batteries based on spinel metal oxides AMn2O4 (A = Co, Ni, and Zn)

et al. 2011

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“…In recent years, much attention has been paid to three-dimensional (3-D) hierarchical architectures due to their high specific surface areas and excellent structural stability, as well as their outstanding transportation properties in comparison with their low-dimensional counterparts [5][6][7][8][9][10][11]. Thus, it is desirable to apply hierarchical nanoarchitectures in the investigation of biological processes, such as electron transfer in biological systems [12,13].…”

Section: Introductionmentioning

confidence: 99%

Direct electrochemistry of cytochrome c at a hierarchically nanostructured TiO2 quantum electrode

et al. 2010

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Monodisperse TiO 2 nanoparticles and urchin-like hierarchical TiO 2 nanospheres assembled with ultrathin quantum nanowires (about 2 nm) have been synthesized by a simple template-free wet chemical method. The morphology, structure, and crystallinity of the TiO 2 nanomaterials were investigated by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and high resolution transmission electron microscopy (HRTEM). Electrochemical measurements with the hierarchically nanostructured TiO 2 nanospheres as an electrode showed much better reversibility for direct electrochemistry of cytochrome c (cyt c) and much higher sensitivity than for an electrode composed of the monodisperse TiO 2 nanoparticles. The excellent performance of the hierarchical TiO 2 nanospheres may result from a quantum size effect, and their favorable nanostructure (with the presence of an abundance of both uniform macropores and mesopores), excellent structural stability and high specific surface area. The relative ionic strength had significant effect on the direct electrochemistry. Very high ionic strengths relative to cyt c concentration (I/c) induced a conformational change of cyt c on the nanostructure-coated electrode, from the native state to a partially unfolded one in 25 mmol/L phosphate buffer solution (pH 6.8).

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“…Due to its interesting mechanical and electrochemical properties, and the ease of its mass production in addition to the abundance of several function groups on its surface [12,14], graphene oxide (GO) has attracted our attention to build up sensitive and reliable electrochemical sensors and biosensors. In fact the interesting catalytic activity of the ZnO/GO nano-structured has been shown in several electrochemical applications [15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization and electrochemical-sensor applications of zinc oxide/graphene oxide nanocomposite

et al. 2016

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Nanostructured metal oxides received considerable research attention due to their unique properties that can be used for designing advanced nanodevices. Thus, in the present study, zinc oxide/graphene oxide (ZnO/GO) nanocomposite was synthesized, characterized and implemented in an electrochemical system. The formation of a compacted ZnO/GO nanocomposite was confirmed by field emission scanning electron microscopy, high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), and attenuated total reflectance spectroscopy. HRTEM showed that ZnO nanocrystals (NCs) are well formed on the GO surface and are interconnected via GO functional groups. From the XRD patterns, the average size of ZnO NCs was found to be about 21.7 ± 2.3 nm which is in agreement with the HRTEM results. The newly developed nanocomposite-based electrochemical system showed a significant improvement in both electrical conductivity and the electrocatalytic activity as noted from the cyclic voltammetry measurements. Consequently, direct electron transfer efficiency was confirmed and used for the amperometric detection of hydrogen peroxide (H 2 O 2 ). Fast and sensitive electrochemical responses for the detection of H 2 O 2 at 1.1 V in the linear response range from 1 to 15 mM with the detection limit (S/N = 3) of 0.8 mM were obtained. These results demonstrated that the prepared ZnO/GO/CPE displayed a good performance along with high sensitivity and longterm stability.

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Evaluation of ZnO nanorod arrays with dandelion-like morphology as negative electrodes for lithium-ion batteries

Cited by 244 publications

References 29 publications

High capacity anode materials for Li-ion batteries based on spinel metal oxides AMn2O4 (A = Co, Ni, and Zn)

High capacity anode materials for Li-ion batteries based on spinel metal oxides AMn2O4 (A = Co, Ni, and Zn)

Direct electrochemistry of cytochrome c at a hierarchically nanostructured TiO2 quantum electrode

Synthesis, characterization and electrochemical-sensor applications of zinc oxide/graphene oxide nanocomposite

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