Electrospun ZnO–SnO2 composite nanofibers with enhanced electrochemical performance as lithium-ion anodes

Luo, Lei; Xu, Wenzheng; Xia, Zhaokang; Fei, Yaqian; Zhu, Jiadeng; Chen, Chen; Lü, Yao; Wei, Qufu; Qiao, Hui; Zhang, Xiangwu

doi:10.1016/j.ceramint.2016.03.211

Cited by 40 publications

(22 citation statements)

References 52 publications

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“…The small grain of PEDOT-coated PVA-GO nanofibers contributes to the high surface area and large surface-to-volume ratio (Fig. 5 b), which provides more active sites and short diffusion distances [ 39 ] resulting in low resistance for ion transfer processes. Thus, PVA-GO/PEDOT5m is considered the optimum time for the formation of PEDOT-coated layer.…”

Section: Resultsmentioning

confidence: 99%

Production of Conductive PEDOT-Coated PVA-GO Composite Nanofibers

et al. 2017

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Electrically conductive nanofiber is well known as an excellent nanostructured material for its outstanding performances. In this work, poly(3,4-ethylenedioxythiophene) (PEDOT)-coated polyvinyl alcohol-graphene oxide (PVA-GO)-conducting nanofibers were fabricated via a combined method using electrospinning and electropolymerization techniques. During electrospinning, the concentration of PVA-GO solution and the applied voltage were deliberately altered in order to determine the optimized electrospinning conditions. The optimized parameters obtained were 0.1 mg/mL of GO concentration with electrospinning voltage of 15 kV, which displayed smooth nanofibrous morphology and smaller diameter distribution. The electrospun PVA-GO nanofiber mats were further modified by coating with the conjugated polymer, PEDOT, using electropolymerization technique which is a facile approach for coating the nanofibers. SEM images of the obtained nanofibers indicated that cauliflower-like structures of PEDOT were successfully grown on the surface of the electrospun nanofibers during the potentiostatic mode of the electropolymerization process. The conductive nature of PEDOT coating strongly depends on the different electropolymerization parameters, resulting in good conductivity of PEDOT-coated nanofibers. The optimum electropolymerization of PEDOT was at a potential of 1.2 V in 5 min. The electrochemical measurements demonstrated that the fabricated PVA–GO/PEDOT composite nanofiber could enhance the current response and reduce the charge transfer resistance of the nanofiber.

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Section: Resultsmentioning

confidence: 99%

Production of Conductive PEDOT-Coated PVA-GO Composite Nanofibers

et al. 2017

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“…The electrochemical performance of the electrospun ZnO/SnO 2 composites for use as anode materials in LIBs has been investigated by Luo et al [75] with regard to the effect of heat treatment on the efficiency of charge and discharge capacities. They found that calcination at 700 °C not only delivered high initial discharge and charge capacities of 1450 and 1101 mAh·g −1 , respectively, with a 75.9% coulombic efficiency, but also maintained a high reversible capacity of 560 mAh·g −1 at a current density of 0.1 Ag −1 after100 cycles.…”

Section: Applications Of Ceramic Electrospun Matsmentioning

confidence: 99%

Electrospun Ceramic Nanofiber Mats Today: Synthesis, Properties, and Applications

2017

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Ceramic nanofibers (NFs) have recently been developed for advanced applications due to their unique properties. In this article, we review developments in electrospun ceramic NFs with regard to their fabrication process, properties, and applications. We find that surface activity of electrospun ceramic NFs is improved by post pyrolysis, hydrothermal, and carbothermal processes. Also, when combined with another surface modification methods, electrospun ceramic NFs result in the advancement of properties and widening of the application domains. With the decrease in diameter and length of a fiber, many properties of fibrous materials are modified; characteristics of such ceramic NFs are different from their wide and long (bulk) counterparts. In this article, electrospun ceramic NFs are reviewed with an emphasis on their applications as catalysts, membranes, sensors, biomaterials, fuel cells, batteries, supercapacitors, energy harvesting systems, electric and magnetic parts, conductive wires, and wearable electronic textiles. Furthermore, properties of ceramic nanofibers, which enable the above applications, and techniques to characterize them are briefly outlined.

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“…As a result, the electros transfer rate between the nanoparticles increase. Due to synergistic effects the ZnO and SnO2 effects, the nanocomposites act like a buffer-matrix each to other for removing the stress and strain during electrochemical-reactions [23,24]. Thus, this approach performed to develop an electrochemical sensor by wet-chemically prepared ZnO/SnO2 NPs coated on GCE.…”

Section: Introductionmentioning

confidence: 99%

A reliable electrochemical sensor developed based on ZnO/SnO₂ nanoparticles modified glassy carbon electrode

et al. 2021

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The 4-NPHyd (4-nitrophenylhydrazine) electrochemical sensor assembled using wet-chemically prepared ZnO/SnO2 nanoparticle (NPs) decorated a glassy carbon electrode (GCE) with conductive Nafion binder. The synthesized NPs characterized by XPS, ESEM, EDS, and XRD analysis. The calibration of the proposed sensor obtained from current versus concentration of 4-NPHyd found linear over a concentration (0.1 nM ~ 0.01 mM) of 4-NPHyd, which denoted as the dynamic range (LDR) for detection of 4-NPHyd. The 4-NPHyd sensor sensitivity calculated using the LDR slope considering the active surface of GCE (0.0316 cm2), which is equal to be 7.6930 µAµM/cm2, an appreciable value. The detection limit (LOD) at signal/noise (S/N = 3) estimated, and outstanding lower value at 94.63±4.73 pM perceived. The analytical parameters such as reproducibility, long-term performing ability and response time are found as appreciable. Finally, the projected sensor shows exceptional performances in the detection of 4-NPHyd in environmental samples.

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Electrospun ZnO–SnO2 composite nanofibers with enhanced electrochemical performance as lithium-ion anodes

Cited by 40 publications

References 52 publications

Production of Conductive PEDOT-Coated PVA-GO Composite Nanofibers

Production of Conductive PEDOT-Coated PVA-GO Composite Nanofibers

Electrospun Ceramic Nanofiber Mats Today: Synthesis, Properties, and Applications

A reliable electrochemical sensor developed based on ZnO/SnO₂ nanoparticles modified glassy carbon electrode

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