Zn2+ doped TiO2/C with enhanced sodium-ion storage properties

Li, Yong-Ni; Su, Jing; Lv, Xuewei; Long, Yunfei; Yu, Hang; Huang, Rong-Rong; Xie, Yong-Chun; Wen, Yan-Xuan

doi:10.1016/j.ceramint.2017.05.063

Cited by 10 publications

(2 citation statements)

References 48 publications

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“…According to the calculations, the chemical diffusion coefficient of sodium ions for the Ni-doped sample was 6.84 × 10 −13 cm 2 •s −1 . Using the same methodology (i.e., EIS) of D Na determination, this value is better than that obtained for previously reported TiO 2 materials, including anatase/C nanoparticles (1.56 × 10 −14 cm 2 •s −1 ) [76], rutile TiO 2 nanoparticles (9.9 × 10 −15 cm 2 •s −1 ) [77], and anatase/C nanofibers (2.0 × 10 −13 cm 2 •s −1 ) [78]. Furthermore, the calculated D Na is comparable with that of other modified titanium-based oxides for SIB anodes, as shown in Table S4 (Supplementary Materials).…”

Section: Electrochemical Performance Of Ni-and Zn-doped Tio 2 (B) Nanobelts In Lithium and Sodium Batteriesmentioning

confidence: 47%

Enhancing Lithium and Sodium Storage Properties of TiO2(B) Nanobelts by Doping with Nickel and Zinc

et al. 2021

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Nickel- and zinc-doped TiO2(B) nanobelts were synthesized using a hydrothermal technique. It was found that the incorporation of 5 at.% Ni into bronze TiO2 expanded the unit cell by 4%. Furthermore, Ni dopant induced the 3d energy levels within TiO2(B) band structure and oxygen defects, narrowing the band gap from 3.28 eV (undoped) to 2.70 eV. Oppositely, Zn entered restrictedly into TiO2(B), but nonetheless, improves its electronic properties (Eg is narrowed to 3.21 eV). The conductivity of nickel- (2.24 × 10−8 S·cm−1) and zinc-containing (3.29 × 10−9 S·cm−1) TiO2(B) exceeds that of unmodified TiO2(B) (1.05 × 10−10 S·cm−1). When tested for electrochemical storage, nickel-doped mesoporous TiO2(B) nanobelts exhibited improved electrochemical performance. For lithium batteries, a reversible capacity of 173 mAh·g−1 was reached after 100 cycles at the current load of 50 mA·g−1, whereas, for unmodified and Zn-doped samples, around 140 and 151 mAh·g−1 was obtained. Moreover, Ni doping enhanced the rate capability of TiO2(B) nanobelts (104 mAh·g−1 at a current density of 1.8 A·g−1). In terms of sodium storage, nickel-doped TiO2(B) nanobelts exhibited improved cycling with a stabilized reversible capacity of 97 mAh·g−1 over 50 cycles at the current load of 35 mA·g−1.

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Section: Electrochemical Performance Of Ni-and Zn-doped Tio 2 (B) Nanobelts In Lithium and Sodium Batteriesmentioning

confidence: 47%

Enhancing Lithium and Sodium Storage Properties of TiO2(B) Nanobelts by Doping with Nickel and Zinc

et al. 2021

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“…A number of attempts have been made to promote the diffusion kinetics of sodium ions and improve the intrinsic electronic conductivity of TiO 2 , where downsizing the particles, − the encapsulation of carbon, − the loading of graphene, and the incorporation of heteroelements − are regarded as the most common strategies. For instance, carbon-coated TiO 2 nanoparticles with the size of 11 nm were proved to deliver a robust capacity of 134 mA h g –1 at a rate of 10 C (3350 mA g –1 ).…”

Section: Introductionmentioning

confidence: 99%

Sulfur-Doped TiO₂ Anchored on a Large-Area Carbon Sheet as a High-Performance Anode for Sodium-Ion Battery

Zhang

Tang

et al. 2019

ACS Appl. Mater. Interfaces

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Well-tailored sulfur-doped anatase titanium dioxide nanoparticles anchored on a large-area carbon sheet are designed, where the in situ sulfur-doped titanium dioxide directly comes from titanium oxysulfate and the large-area carbon sheet is derived from glucose. When applied as an anode material for sodium-ion batteries, it exhibits an excellent electrochemical performance including a high capacity [256.4 mA h g–1 at 2 C (1 C = 335 mA h g–1) after 500 cycles] and a remarkable rate of cycling stability (100.5 mA h g–1 at 30 C after 500 cycles). These outstanding sodium storage behaviors are ascribed to the nanosized particles (about 8–12 nm), good electronic conductivity promoted by the incorporation of carbon sheet and sulfur, as well as the unique chemical bond based on the electrostatic interaction.

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Heteroatom Doping: An Effective Way to Boost Sodium Ion Storage

Chen

Liu

et al. 2020

Advanced Energy Materials

375

205

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In response to the change of energy landscape, sodium‐ion batteries (SIBs) are becoming one of the most promising power sources for the post‐lithium‐ion battery (LIB) era due to the cheap and abundant nature of sodium, and similar electrochemical properties to LIBs. The electrochemical performance of electrode materials for SIBs is closely bound up with their crystal structures and intrinsic electronic/ionic states. Apart from nanoscale design and conductive composite strategies, heteroatom doping is another effective way to enhance the intrinsic transfer characteristics of sodium ions and electrons in crystal structures to accelerate reaction kinetics and thereby achieve high performance. In this review, the recent advancements in heteroatom doping for sodium ion storage of electrode materials are reviewed. Specifically, different doping strategies including nonmetal element doping (e.g., nitrogen, sulfur, phosphorous, boron, fluorine), metal element doping (magnesium, titanium, iron, aluminum, nickel, copper, etc.), and dual/triple doping (such as N–S, N–P, N–S–P) are reviewed and summarized in detail. Furthermore, various doping methods are introduced and their advantages and disadvantages are discussed. The doping effect on crystal structure and intrinsic electronic/ionic state are illustrated and the relationship with capacity and energy/power density is interrogated. Finally, future development trends in doping strategies for advanced SIBs electrodes are analyzed.

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Zn2+ doped TiO2/C with enhanced sodium-ion storage properties

Cited by 10 publications

References 48 publications

Enhancing Lithium and Sodium Storage Properties of TiO2(B) Nanobelts by Doping with Nickel and Zinc

Enhancing Lithium and Sodium Storage Properties of TiO2(B) Nanobelts by Doping with Nickel and Zinc

Sulfur-Doped TiO₂ Anchored on a Large-Area Carbon Sheet as a High-Performance Anode for Sodium-Ion Battery

Heteroatom Doping: An Effective Way to Boost Sodium Ion Storage

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Zn2+ doped TiO2/C with enhanced sodium-ion storage properties

Cited by 10 publications

References 48 publications

Enhancing Lithium and Sodium Storage Properties of TiO2(B) Nanobelts by Doping with Nickel and Zinc

Enhancing Lithium and Sodium Storage Properties of TiO2(B) Nanobelts by Doping with Nickel and Zinc

Sulfur-Doped TiO2 Anchored on a Large-Area Carbon Sheet as a High-Performance Anode for Sodium-Ion Battery

Heteroatom Doping: An Effective Way to Boost Sodium Ion Storage

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Product

Resources

About

Sulfur-Doped TiO₂ Anchored on a Large-Area Carbon Sheet as a High-Performance Anode for Sodium-Ion Battery