Fabrication of Ti-doped SnO2/RGO composites as anode materials with high stability for lithium-ion batteries

Ba, Chaoqun; Shi, Liyi; Wang, Zhuyi; Chen, Guorong; Wang, Shuai; Zhao, Yin; Zhang, Meihong

doi:10.1007/s11164-017-2967-7

Cited by 8 publications

(5 citation statements)

References 30 publications

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“…In recent years, a variety of transition‐metal dopants for SnO 2 were proposed in the literature; these can be divided into two groups: redox‐inactive and ‐active elements that can undergo conversion/alloying reactions with lithium ions in the potential range applicable for SnO 2 ‐based anodes . Niobium, titanium, zirconium, palladium, and tungsten can be assigned to the first group. Doping with these transition‐metal ions does not result in an observable gain in capacity because the lithiation/delithiation curves of SnO 2 anode materials remain unchanged, without additional redox features from the doping elements in the respective potential window.…”

Section: Doped Sno2 Lib Anodesmentioning

confidence: 92%

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Tin Oxide Based Nanomaterials and Their Application as Anodes in Lithium‐Ion Batteries and Beyond

et al. 2019

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Herein, recent progress in the field of tin oxide (SnO2)‐based nanosized and nanostructured materials as conversion and alloying/dealloying‐type anodes in lithium‐ion batteries and beyond (sodium‐ and potassium‐ion batteries) is briefly discussed. The first section addresses the importance of the initial SnO2 micro‐ and nanostructure on the conversion and alloying/dealloying reaction upon lithiation and its impact on the microstructure and cyclability of the anodes. A further section is dedicated to recent advances in the fabrication of diverse 0D to 3D nanostructures to overcome stability issues induced by large volume changes during cycling. Additionally, the role of doping on conductivity and synergistic effects of redox‐active and ‐inactive dopants on the reversible lithium‐storage capacity and rate capability are discussed. Furthermore, the synthesis and electrochemical properties of nanostructured SnO2/C composites are reviewed. The broad research spectrum of SnO2 anode materials is finally reflected in a brief overview of recent work published on Na‐ and K‐ion batteries.

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Section: Doped Sno2 Lib Anodesmentioning

confidence: 92%

“…Another strategy to improve the performance of SnO 2 ‐based anode materials is to use doped SnO 2 nanoparticles and graphene as a support material –. Zoller et al.…”

Section: Sno2‐based Composite Lib Anodesmentioning

confidence: 99%

Tin Oxide Based Nanomaterials and Their Application as Anodes in Lithium‐Ion Batteries and Beyond

et al. 2019

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“…22 Therefore, using a ternary metal oxide such as Sn x Ti 1−x O 2 (where 0 ≤ x ≤ 1) that offers the ability to tune the E CBM as a function of composition is one strategy that can be used to control IET in WS-DSPECs. Sn x Ti 1−x O 2 solid solutions have been studied as photoanode materials in conventional dye-sensitized solar cells (DSSCs), 23−25 batteries, 26,27 and for photocatalysis. 28,29 In addition, there have been several experimental 30,31 and theoretical 32 studies on the properties of Sn x Ti 1−x O 2 solid solutions.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Sn x Ti 1– x O 2 solid solutions have been studied as photoanode materials in conventional dye-sensitized solar cells (DSSCs), − batteries, , and for photocatalysis. , In addition, there have been several experimental , and theoretical studies on the properties of Sn x Ti 1– x O 2 solid solutions. Notably in the context of DSSCs, Zhang et al suggested that Ti 4+ atoms incorporated into SnO 2 act as trap states that inhibit electron transport within the material, but increase the recombination lifetime .…”

Section: Introductionmentioning

confidence: 99%

Tuning the Conduction Band for Interfacial Electron Transfer: Dye-Sensitized Sn_xTi_1–xO₂ Photoanodes for Water Splitting

Spies

Swierk

Kelly

et al. 2021

ACS Appl. Energy Mater.

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Interfacial electron transfer (IET) dynamics in dyesensitized Sn x Ti 1−x O 2 (x = 0, 0.25, 0.50, 0.75, and 1) were investigated using ultrafast transient absorption spectroscopy, linear absorption spectroscopy, and DFT calculations. We found that altering the composition of Sn x Ti 1−x O 2 allows for monotonic tunability of the conduction band, altering both the driving force for forward IET and the electronic states of the conduction band involved in IET. IET from a prototypical ruthenium(II) polypyridyl dye sensitizer can be tuned by Sn x Ti 1−x O 2 by both modulating the absorption spectrum of the adsorbed dye and altering the electron acceptor states in the conduction band. Periodic DFT calculations show that incorporation of Ti d-character in the conduction band plays a crucial role in promoting ultrafast electron injection.

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“…Several groups have attempted to improve the lithiation rate of tin oxide‐based electrodes by increasing the electrical conductivity of SnO 2 via doping . SnO 2 ‐based anodes were doped with Sb, In, Zn, Co, Fe, Mo, Ti, W, and F; however, no improvement in the rate capability was observed. In‐ and W‐ doped SnO 2 /graphene composites reported by Liu et al and Wang et al reach only 200 and 300 mAh g −1 at a current densities of 7.8 and 7 A g −1 , respectively.…”

Section: Introductionmentioning

confidence: 99%

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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Fabrication of Ti-doped SnO2/RGO composites as anode materials with high stability for lithium-ion batteries

Cited by 8 publications

References 30 publications

Tin Oxide Based Nanomaterials and Their Application as Anodes in Lithium‐Ion Batteries and Beyond

Tin Oxide Based Nanomaterials and Their Application as Anodes in Lithium‐Ion Batteries and Beyond

Tuning the Conduction Band for Interfacial Electron Transfer: Dye-Sensitized Sn_xTi_1–xO₂ Photoanodes for Water Splitting

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

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Fabrication of Ti-doped SnO2/RGO composites as anode materials with high stability for lithium-ion batteries

Cited by 8 publications

References 30 publications

Tin Oxide Based Nanomaterials and Their Application as Anodes in Lithium‐Ion Batteries and Beyond

Tin Oxide Based Nanomaterials and Their Application as Anodes in Lithium‐Ion Batteries and Beyond

Tuning the Conduction Band for Interfacial Electron Transfer: Dye-Sensitized SnxTi1–xO2 Photoanodes for Water Splitting

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

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Tuning the Conduction Band for Interfacial Electron Transfer: Dye-Sensitized Sn_xTi_1–xO₂ Photoanodes for Water Splitting