Electrochemical performance of SnO<sub>2</sub>:Sb-MWCNT nanocomposites for Li-ion batteries

Cevher, O.; Guler, Mehmet Oguz; Tocoglu, U.; Akbulut, Hatem

doi:10.1002/er.3132

Cited by 15 publications

(16 citation statements)

References 55 publications

(65 reference statements)

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“…The peaks of the produced SnO 2 nanoparticles belong to the cassiterite crystal structure (JCPDS, 00‐041‐1445). The most intense major peaks (110), (101), and (210) planes were observed . In the case of SnO 2 ‐rGO and ternary ZnO‐SnO 2 ‐rGO composites, the (110) plane of SnO 2 and the (002) plane of carbon overlapped and widened.…”

Section: Resultsmentioning

confidence: 98%

“…The most intense major peaks (110), (101), and (210) planes were observed. 7 In the case of SnO 2 -rGO and ternary ZnO-SnO 2 -rGO composites, the (110) plane of SnO 2 and the (002) plane of carbon overlapped and widened. After analyzing the XRD results of ZnO-rGO, SnO 2 -rGO, and ZnO-SnO 2 -rGO composites, the related peaks of metal oxide crystals and rGO were observed, which suggest that the composite structures were successfully produced.…”

Section: Resultsmentioning

confidence: 98%

“…Guler et al and Cevher et al studied SnO 2 and SnO 2 /Sb films coated on multiwalled carbon nanotubes. These films were used as free‐standing Li‐ion anodes, and they provided high reversible discharge capacity (>700 mAh g −1 ) after 100 cycles . Correspondingly, no previous studies have reported ZnO‐SnO 2 /rGO composite for Li‐ion batteries being binder‐free, flexible, and free‐standing anode or compared this ternary anode with binary ZnO/rGO and SnO 2 /rGO composites.…”

Section: Resultsmentioning

confidence: 99%

“…Porous, sandwich‐type, and 3D network structures were designed as binary or ternary composites using graphene, CNT, or other carbon derivative nanostructures to enhance the capacity and to avoid huge volume changes of the anodes. These measures were applied to buffer volume expansions, prevent electrical detachments and anode disintegrations …”

Section: Introductionmentioning

confidence: 99%

“…These measures were applied to buffer volume expansions, prevent electrical detachments and anode disintegrations. 7 Carbon materials having better electrical conductivity such as graphene facilitate charge transfer during electrochemical reactions and contribute exhibiting better electrochemical performance. 8 Two-dimensional structured graphene has been widely used for anode applications due to its outstanding electrical, optical, mechanical, and magnetic features.…”

Section: Introductionmentioning

confidence: 99%

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Graphene-based architectures of tin and zinc oxide nanocomposites for free-standing binder-free Li-ion anodes

2018

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Summary Free‐standing, flexible, and binderless binary ZnO‐reduced graphene oxide (rGO), SnO2‐rGO, and ternary ZnO‐SnO2‐rGO Li‐ion anodes were produced by vacuum filtrating the mixture of metal oxides synthesized by sol‐gel method and graphene oxide produced by Hummers method. These paper anodes were designed by being decorated with metal oxides between rGO layers. To compare nanocomposite anode structures, field emission gun‐scanning electron microscopy, energy dispersive X‐ray spectrometer, X‐ray diffraction, and electrochemical analyses were applied. The results suggested that ternary ZnO‐SnO2‐rGO paper anode exhibited larger discharge capacity and capacity retention than the binary anodes even after 100 cycles. This finding is attributed to buffering effect of rGO on volume expansion of the anode structure designed by sandwich‐type production and the synergic effect of ZnO‐SnO2 oxides.

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Graphene-based architectures of tin and zinc oxide nanocomposites for free-standing binder-free Li-ion anodes

2018

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Making Ultrafast High‐Capacity Anodes for Lithium‐Ion Batteries via Antimony Doping of Nanosized Tin Oxide/Graphene Composites

Zoller

Peters

Zehetmaier

et al. 2018

Adv Funct Materials

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Tin oxide-based materials attract increasing attention as anodes in lithiumion batteries due to their high theoretical capacity, low cost, and high abundance. Composites of such materials with a carbonaceous matrix such as graphene are particularly promising, as they can overcome the limitations of the individual materials. The fabrication of antimony-doped tin oxide (ATO)/ graphene hybrid nanocomposites is described with high reversible capacity and superior rate performance using a microwave assisted in situ synthesis in tert-butyl alcohol. This reaction enables the growth of ultrasmall ATO nanoparticles with sizes below 3 nm on the surface of graphene, providing a composite anode material with a high electric conductivity and high structural stability. Antimony doping results in greatly increased lithium insertion rates of this conversion-type anode and an improved cycling stability, presumably due to the increased electrical conductivity. The uniform composites feature gravimetric capacity of 1226 mAh g −1 at the charging rate 1C and still a high capacity of 577 mAh g −1 at very high charging rates of up to 60C, as compared to 93 mAh g −1 at 60C for the undoped composite synthesized in a similar way. At the same time, the antimony-doped anodes demonstrate excellent stability with a capacity retention of 77% after 1000 cycles.

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Nano energy technologies

Ali

Lund

2014

Int. J. Energy Res.

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The International Journal of Energy Research (IJER) recognized early on the potential and opportunities of nanomaterials and nanotechnology for energy applications. In the past, several special issues on this theme have been published and separate papers in this category have been regularly published [1,2]. Through improved physical and chemical properties such as increased catalytic activity, large specific surface area, or new functionalities, nanomaterials have shown their applicability for a range of energy technologies such as solar cells, batteries, hydrogen technologies, among others. Nanotechnology is becoming a standard tool to improve the performance or to reduce the cost of novel energy systems. New nano energy devices such as energy harvesting are also emerging.While IJER has launched specific calls for papers in nanotechnology for energy in the past, this time we have chosen extended papers from the 7th International Conference on Surfaces, Coatings & Nanostructured Materials (NANOSMAT 7) which was held in Prague, The Czech Republic, in autumn 2012. A few other paper submissions of interest are also included here. The NANOSMAT conferences have traditionally included several sessions on nanomaterials for energy showing an increasing interest among the science community in this research topic. NANOSMAT conferences have been running since 2005 and due to their great success NANOSMAT-USA and NANOSMAT-Asia have been launched.The papers in this IJER Special Issue on nanotechnology for energy applications deal with solar cells, light-emitting diodes, Li-ion batteries, hydrogen storage, fuel cells, hydrogen production, and energy harvesting. A range of different nanomaterials are also covered such as carbon nanospheres, carbon nanotubes, nanoparticles, nanocomposites, etc. Altogether 14 papers are included in the special issue. A short summary of each paper is presented in the next to introduce the readers of the journal into this special issue.Tsai et al.[3] investigated CuInS 2 thin film solar cells in their paper. They looked on the effects of sulfurization and the Cu/in-ratio on the film quality and morphology, which depend very much on the processing conditions. A solar cell with an efficiency of 6.29% was produced.Pimanpang et al.[4] fabricated dye-sensitized solar cells on plastics and stainless steel. The stainless steel was coated with a film of TiO 2 nanoparticles and the plastic was made conductive through deposition of Pt-nanoparticles. This fully flexible DSSC solar cell showed an efficiency of 2.72%.Su et al.[5] used ZrO 2 nanoparticles to improve the light transmission for a natural pigment-sensitized solar cell in a water-based electrolyte. The nanoparticles improved the light transmission by a factor of eight. An environmentally friendly solar cell with an efficiency of 0.688 % was produced.Ray et al.[6] studied the effect of nitrogen functionalization on the structure of carbon spheres which can potentially be used for energy applications such as solar cells and capacitors. Kasdorf et al. ...

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Electrochemical performance of SnO₂:Sb-MWCNT nanocomposites for Li-ion batteries

Cited by 15 publications

References 55 publications

Graphene-based architectures of tin and zinc oxide nanocomposites for free-standing binder-free Li-ion anodes

Graphene-based architectures of tin and zinc oxide nanocomposites for free-standing binder-free Li-ion anodes

Making Ultrafast High‐Capacity Anodes for Lithium‐Ion Batteries via Antimony Doping of Nanosized Tin Oxide/Graphene Composites

Nano energy technologies

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Electrochemical performance of SnO2:Sb-MWCNT nanocomposites for Li-ion batteries

Cited by 15 publications

References 55 publications

Graphene-based architectures of tin and zinc oxide nanocomposites for free-standing binder-free Li-ion anodes

Graphene-based architectures of tin and zinc oxide nanocomposites for free-standing binder-free Li-ion anodes

Making Ultrafast High‐Capacity Anodes for Lithium‐Ion Batteries via Antimony Doping of Nanosized Tin Oxide/Graphene Composites

Nano energy technologies

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Product

Resources

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Electrochemical performance of SnO₂:Sb-MWCNT nanocomposites for Li-ion batteries