Brookite TiO<sub>2</sub> mesocrystals with enhanced lithium-ion intercalation properties

Zhang, Weifeng; Shen, Deli; Liu, Zhenwei; Wu, Nae‐Lih; Mao, Wei

doi:10.1039/c8cc06920d

Cited by 37 publications

(25 citation statements)

References 33 publications

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“…The work functions determined from V fb values (eq ) are usually slightly smaller for the acetonitrile + LiTFSI solution as compared to those in the aqueous KCl solution. Solely brookite shows an opposite difference between these two media, and it is tempting to attribute it to the low activity of bulk brookite for Li + insertion . However, both water and Li + in acetonitrile would move the V fb values in the opposite direction from the very negative values, which were reported for dry and Li + -free conditions (Table S2).…”

Section: Resultsmentioning

confidence: 80%

Work Function of TiO₂ (Anatase, Rutile, and Brookite) Single Crystals: Effects of the Environment

et al. 2021

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Electrochemical impedance spectroscopy, photoelectron spectroscopy, and Kelvin probe measurements on various TiO 2 single-crystal surfaces show that the position of the Fermi level and the conduction band minimum depend significantly on the sample environment (vacuum, air, water vapor, and aqueous or aprotic electrolyte solutions). In most cases, the conduction-band minimum increases in the series: anatase < rutile < brookite. The offset between anatase and rutile indicates a type II staggered alignment if the environment is vacuum, air, water vapor, or aprotic electrolyte solution, but a type IV aligned configuration is found in an aqueous electrolyte solution. The photoelectron spectra in water vapor reveal a strong upshift of the conduction band, which is nearly reversible in the early stages of water/titania interactions. Our results rationalize various earlier contradictions and highlight the need for proper analytical techniques and experimental conditions for investigation of the band energetics, which is relevant to practical applications of titania materials.

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Section: Resultsmentioning

confidence: 80%

Work Function of TiO₂ (Anatase, Rutile, and Brookite) Single Crystals: Effects of the Environment

et al. 2021

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“…Such a novel synthetic procedure could also be extendable for the preparation of TiO 2 mesocrystals with other crystal phases. For example, by using amorphous titanates as titanium precursor and oxalic acid as structure-directing agent, novel brookite TiO 2 mesocrystals were successfully fabricated, as well [157]. assembly process, and rutile mesocrystals with controllable morphologies were successfully fabricated by varying the adding amount of SDBS.…”

Section: Direct Additive-free Growth In Solutionmentioning

confidence: 99%

Titanium Dioxide (TiO2) Mesocrystals: Synthesis, Growth Mechanisms and Photocatalytic Properties

Zhang

Cao

et al. 2019

Catalysts

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Hierarchical TiO2 superstructures with desired architectures and intriguing physico-chemical properties are considered to be one of the most promising candidates for solving the serious issues related to global energy exhaustion as well as environmental deterioration via the well-known photocatalytic process. In particular, TiO2 mesocrystals, which are built from TiO2 nanocrystal building blocks in the same crystallographical orientation, have attracted intensive research interest in the area of photocatalysis owing to their distinctive structural properties such as high crystallinity, high specific surface area, and single-crystal-like nature. The deeper understanding of TiO2 mesocrystals-based photocatalysis is beneficial for developing new types of photocatalytic materials with multiple functionalities. In this paper, a comprehensive review of the recent advances toward fabricating and modifying TiO2 mesocrystals is provided, with special focus on the underlying mesocrystallization mechanism and controlling rules. The potential applications of as-synthesized TiO2 mesocrystals in photocatalysis are then discussed to shed light on the structure–performance relationships, thus guiding the development of highly efficient TiO2 mesocrystal-based photocatalysts for certain applications. Finally, the prospects of future research on TiO2 mesocrystals in photocatalysis are briefly highlighted.

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“…Many smart technology applications, such as intelligent electric cars, portable gadgets, power tools, medical equipment, and communication tools, are now being integrated into daily life. These applications need some source of energy storage in order to operate the electronic system, especially lithium-ion batteries (LIBs) . LIBs offer several benefits over conventional batteries, including high energy density, high specific capacity, extended life cycle, no memory effect, long shelf lifetime, and low self-discharge rate. , LIBs are frequently used as the primary energy storage in a wide range of applications because of their exceptional performance.…”

Section: Introductionmentioning

confidence: 99%

Fast-Charging Anode Materials and Novel Nanocomposite Design of Rice Husk-Derived SiO₂ and Sn Nanoparticles Self-Assembled on TiO₂(B) Nanorods for Lithium-Ion Storage Applications

et al. 2021

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A novel microstructure of anode materials for lithium-ion batteries with ternary components, comprising tin (Sn), rice husk-derived silica (SiO 2 ), and bronze-titanium dioxide (TiO 2 (B)), has been developed. The goal of this research is to utilize the nanocomposite design of rice husk-derived SiO 2 and Sn nanoparticles self-assembled on TiO 2 (B) nanorods, Sn–SiO 2 @TiO 2 (B), through simple chemical route methods. Following that, the microstructure and electrochemical performance of as-prepared products were investigated. The major patterns of the X-ray diffraction technique can be precisely indexed as monoclinic TiO 2 (B). The patterns of SiO 2 and Sn were found to be low in intensity since the particles were amorphous and in the nanoscale range, respectively. Small spherical particles, Sn and SiO 2 , attached to TiO 2 (B) nanorods were discovered. Therefore, the influence mechanism of Sn–SiO 2 @TiO 2 (B) fabrication was proposed. The Sn–SiO 2 @TiO 2 (B) anode material performed exceptionally well in terms of electrochemical and battery performance. The as-prepared electrode demonstrated outstanding stability over 500 cycles, with a high discharge capacity of ∼150 mA h g –1 at a fast-charging current of 5000 mA g –1 and a low internal resistance of around 250.0 Ω. The synthesized Sn–SiO 2 @TiO 2 (B) nanocomposites have a distinct structure, the potential for fast charging, safety in use, and good stability, indicating their use as promising and effective anode materials in better power batteries for the next-generation applications.

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Brookite TiO₂ mesocrystals with enhanced lithium-ion intercalation properties

Cited by 37 publications

References 33 publications

Work Function of TiO₂ (Anatase, Rutile, and Brookite) Single Crystals: Effects of the Environment

Work Function of TiO₂ (Anatase, Rutile, and Brookite) Single Crystals: Effects of the Environment

Titanium Dioxide (TiO2) Mesocrystals: Synthesis, Growth Mechanisms and Photocatalytic Properties

Fast-Charging Anode Materials and Novel Nanocomposite Design of Rice Husk-Derived SiO₂ and Sn Nanoparticles Self-Assembled on TiO₂(B) Nanorods for Lithium-Ion Storage Applications

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Brookite TiO2 mesocrystals with enhanced lithium-ion intercalation properties

Cited by 37 publications

References 33 publications

Work Function of TiO2 (Anatase, Rutile, and Brookite) Single Crystals: Effects of the Environment

Work Function of TiO2 (Anatase, Rutile, and Brookite) Single Crystals: Effects of the Environment

Titanium Dioxide (TiO2) Mesocrystals: Synthesis, Growth Mechanisms and Photocatalytic Properties

Fast-Charging Anode Materials and Novel Nanocomposite Design of Rice Husk-Derived SiO2 and Sn Nanoparticles Self-Assembled on TiO2(B) Nanorods for Lithium-Ion Storage Applications

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Brookite TiO₂ mesocrystals with enhanced lithium-ion intercalation properties

Work Function of TiO₂ (Anatase, Rutile, and Brookite) Single Crystals: Effects of the Environment

Work Function of TiO₂ (Anatase, Rutile, and Brookite) Single Crystals: Effects of the Environment

Fast-Charging Anode Materials and Novel Nanocomposite Design of Rice Husk-Derived SiO₂ and Sn Nanoparticles Self-Assembled on TiO₂(B) Nanorods for Lithium-Ion Storage Applications