Structural, optical and electrical characterization of antimony-substituted tin oxide nanoparticles

Krishnakumar, T.; Jayaprakash, R.; Pinna, Nicola; Phani, A.R.; Passacantando, M.; Santucci, S.

doi:10.1016/j.jpcs.2009.05.013

Cited by 69 publications

(39 citation statements)

References 30 publications

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“…are 0.72, 0.62 and 0.90 Å , respectively, and when Sb 5? enters the SnO 2 structure, the lattice parameters ions, an increase in the lattice parameters is observed [9,10,23,44].…”

Section: Physicochemical Characterizationmentioning

confidence: 95%

“…Undoped tin dioxide is a wide bandgap semiconductor (Eg *3.6 eV) with electrical resistivity varying from 10 to 10 6 X cm, depending on the temperature and the stoichiometry of the oxide [6,7]. Antimony is one of the most common n-type dopants for SnO 2 ; the addition of Sb modifies the band structure of SnO 2 by the donation of an extra electron into the conduction band and a substitutional replacement of a cation by the impurity dopant [8][9][10][11][12]. The ATO has a high tolerance to corrosion in acid media, and when it is doped with conductive species, such as Sb 5? or Sb 3?…”

Section: Introductionmentioning

confidence: 99%

“…The coprecipitation method from a homogeneous solution containing metallic sources is a cost-efficient procedure for electrocatalyst and support synthesis, and it presents several advantages, such as high purity, small crystalline size, short preparation time, low cost and possible large scale production. Although coprecipitation is recognized as a good method of synthesis [8,9,[23][24][25][26][27][28], additional reproducibility, optimization and simplification studies must be performed before it can be considered to be a commercial choice for the production of ATO.…”

Section: Introductionmentioning

confidence: 99%

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Electrochemical performance of a Sb-doped SnO2 support synthesized by coprecipitation for oxygen reactions

et al. 2015

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Highly dispersed platinum or platinum-based catalysts on a conductive support are commonly used as electrode materials in low-temperature fuel cells. Similarly, iridium oxide is the usual anode material in polymeric exchange membrane electrolyzers. The performance and, in particular, the stability of these catalysts strongly depends on the characteristics of the support. This study presents the results of the physicochemical and electrochemical characterization of the powers of antimony-doped tin oxide (ATO) synthesized by a chemical coprecipitation method and a minimum calcination time. These supports were used as catalytic supports for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). The ATO was characterized by X-ray diffraction (XRD), high resolution transmission electron microscopy, energy dispersive spectrometry and four probe resistivity techniques. The electrochemical properties were obtained by cyclic voltammetry (CV), linear voltammetry (LV) and rotating disk electrode (RDE). The material obtained showed nanometric sizes of 4-9 nm, and the electrochemical results indicate that the synthesized ATO nanoparticles can be used as a support for IrO 2 and Pt in electrodes for PEM electrolyzers and fuel cells. Some mixtures of synthesized ATO and Vulcan carbon (VC) were assayed as mixed supports for ORR and OER and for acquiring a protective effect of ATO on the degradation of the carbon support.

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“…are 0.72, 0.62 and 0.90 Å , respectively, and when Sb 5? enters the SnO 2 structure, the lattice parameters ions, an increase in the lattice parameters is observed [9,10,23,44].…”

Section: Physicochemical Characterizationmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Electrochemical performance of a Sb-doped SnO2 support synthesized by coprecipitation for oxygen reactions

et al. 2015

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“…11,12,14,16 The conductivity mechanism of the ATO material is deeply related to the co-existence of both Sb 3þ and Sb 5þ oxidation state. While the Sb 5þ ions act as electron donors, forming a shallow donor level close to the conduction band of SnO 2 , the Sb 3þ ions behave as electron acceptors.…”

Section: -5mentioning

confidence: 99%

“…Therefore, the ATO materials are useful for a wide range of applications such as transparent electrodes, heat mirrors, displays, rechargeable Li batteries and energy storage devices. [10][11][12][13][14][15][16][17][18] Doping antimony is found to increase the electrical conductivity and mechanical stability of the SnO 2 -based material, thereby leading to improved electrochemical properties. [19][20][21] The other strategy to improve cycle performance of SnO 2 -based anode is utilization of various nanostructured materials, [1][2][3][4][5][6][22][23][24][25][26] which have short di®usion pathlength for Li-ion and high surface areas facilitating Li-ion transport.…”

Section: Introductionmentioning

confidence: 99%

Highly Ordered Mesoporous Antimony-Doped SnO₂ Materials for Lithium-ion Battery

Park

Hyung

Shon

et al. 2015

NANO

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Highly ordered mesoporous antimony-doped tin oxide (ATO) materials, containing di®erent amount of antimony in the range of 0-50 mol%, are prepared via a nanoreplication method using a mesoporous silica template. The mesoporous ATO materials thus obtained exhibit high electrical conductivity, high reversible capacity, superior cycle stability and good rate capability as anode materials for lithium-ion batteries, compared to those of pure mesoporous tin oxide. Amongst the ATO materials in this work, the mesoporous ATO material with 10 mol% of antimony has highest discharge capacity of 1940 mAhg À1 (charge capacity of 1049) at the 1st cycle, best cycle performance (716 mAhg À1 at 100th cycle) and excellent rate capability, which are probably due to the enhanced electrical conductivity as well as reduced crystalline size.

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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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Structural, optical and electrical characterization of antimony-substituted tin oxide nanoparticles

Cited by 69 publications

References 30 publications

Electrochemical performance of a Sb-doped SnO2 support synthesized by coprecipitation for oxygen reactions

Electrochemical performance of a Sb-doped SnO2 support synthesized by coprecipitation for oxygen reactions

Highly Ordered Mesoporous Antimony-Doped SnO₂ Materials for Lithium-ion Battery

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

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Structural, optical and electrical characterization of antimony-substituted tin oxide nanoparticles

Cited by 69 publications

References 30 publications

Electrochemical performance of a Sb-doped SnO2 support synthesized by coprecipitation for oxygen reactions

Electrochemical performance of a Sb-doped SnO2 support synthesized by coprecipitation for oxygen reactions

Highly Ordered Mesoporous Antimony-Doped SnO2 Materials for Lithium-ion Battery

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

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Highly Ordered Mesoporous Antimony-Doped SnO₂ Materials for Lithium-ion Battery