Hydrogen-Bonding-Mediated Synthesis of Atomically Thin TiO2 Films with Exposed (001) Facets and Applications in Fast Lithium Insertion/Extraction

Hongye Zhang; Zhenzhen Yang; Wei Gan; Yanfei Zhao; Bo Yu; Huanjun Xu; Zhishuang Ma; Leiduan Hao; Dechao Chen; Shiding Miao; Zhimin Liu

doi:10.1002/chem.201502443

Hydrogen-Bonding-Mediated Synthesis of Atomically Thin TiO₂ Films with Exposed (001) Facets and Applications in Fast Lithium Insertion/Extraction

Hongye Zhang, Zhenzhen Yang, Wei Gan, Yanfei Zhao, Bo Yu, Huanjun Xu, Zhishuang Ma, Leiduan Hao, Dechao Chen, Shiding Miao, Zhimin Liu

Nanomaterials Chemistry Group

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Ultrathin two-dimensional (2D) crystalline materials show high specific surface area (SA) of high energy (HE) facets, imparting a significant improvement in their performances. Herein we report a novel route to synthesize TiO₂ nanofilms (NFs) with atomic thickness (<2.0 nm) through a solvothermal reaction mediated by the hydrogen-bonding networks constructed by hydroquinone (HQ). The resultant TiO₂ NFs have nearly 100 % exposed (001) facets and give an extremely high SA up to 487 m² g^-1. The synergistic effect of HQ and choline chloride plays a vital role in the formation of TiO₂ NFs and in the exposure of HE (001) facets. Because of its ultrathin feature and exposed (001) facet, the N₂-annealled TiO₂ NFs showed fast kinetics of lithium insertion/extraction, demonstrating foreseeable applications in the energy storage. LIB, LIB hooray! Atomically thin anatase TiO₂ films with exposed (001) facets were synthesized mediated by hydrogen-bonding networks and an external exfoliation agent during the solvothermal process (see figure). The N₂-annealled TiO₂ nanofilms showed fast kinetics of lithium insertion/extraction, which originates from its ultrathin feature and exposed (001) facet.

Original language	English
Pages (from-to)	14608-14613
Number of pages	6
Journal	Chemistry - A European Journal
Volume	21
Issue number	41
DOIs	https://doi.org/10.1002/chem.201502443
State	Published - Oct 1 2015

Keywords

hydrogen bonds
insertion
lithium
nanostructures
synergistic effect

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title = "Hydrogen-Bonding-Mediated Synthesis of Atomically Thin TiO2 Films with Exposed (001) Facets and Applications in Fast Lithium Insertion/Extraction",

abstract = "Ultrathin two-dimensional (2D) crystalline materials show high specific surface area (SA) of high energy (HE) facets, imparting a significant improvement in their performances. Herein we report a novel route to synthesize TiO2 nanofilms (NFs) with atomic thickness (<2.0 nm) through a solvothermal reaction mediated by the hydrogen-bonding networks constructed by hydroquinone (HQ). The resultant TiO2 NFs have nearly 100 % exposed (001) facets and give an extremely high SA up to 487 m2 g-1. The synergistic effect of HQ and choline chloride plays a vital role in the formation of TiO2 NFs and in the exposure of HE (001) facets. Because of its ultrathin feature and exposed (001) facet, the N2-annealled TiO2 NFs showed fast kinetics of lithium insertion/extraction, demonstrating foreseeable applications in the energy storage. LIB, LIB hooray! Atomically thin anatase TiO2 films with exposed (001) facets were synthesized mediated by hydrogen-bonding networks and an external exfoliation agent during the solvothermal process (see figure). The N2-annealled TiO2 nanofilms showed fast kinetics of lithium insertion/extraction, which originates from its ultrathin feature and exposed (001) facet.",

keywords = "hydrogen bonds, insertion, lithium, nanostructures, synergistic effect",

author = "Hongye Zhang and Zhenzhen Yang and Wei Gan and Yanfei Zhao and Bo Yu and Huanjun Xu and Zhishuang Ma and Leiduan Hao and Dechao Chen and Shiding Miao and Zhimin Liu",

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T1 - Hydrogen-Bonding-Mediated Synthesis of Atomically Thin TiO2 Films with Exposed (001) Facets and Applications in Fast Lithium Insertion/Extraction

AU - Zhang, Hongye

AU - Yang, Zhenzhen

AU - Gan, Wei

AU - Zhao, Yanfei

AU - Yu, Bo

AU - Xu, Huanjun

AU - Ma, Zhishuang

AU - Hao, Leiduan

AU - Chen, Dechao

AU - Miao, Shiding

AU - Liu, Zhimin

PY - 2015/10/1

Y1 - 2015/10/1

N2 - Ultrathin two-dimensional (2D) crystalline materials show high specific surface area (SA) of high energy (HE) facets, imparting a significant improvement in their performances. Herein we report a novel route to synthesize TiO2 nanofilms (NFs) with atomic thickness (<2.0 nm) through a solvothermal reaction mediated by the hydrogen-bonding networks constructed by hydroquinone (HQ). The resultant TiO2 NFs have nearly 100 % exposed (001) facets and give an extremely high SA up to 487 m2 g-1. The synergistic effect of HQ and choline chloride plays a vital role in the formation of TiO2 NFs and in the exposure of HE (001) facets. Because of its ultrathin feature and exposed (001) facet, the N2-annealled TiO2 NFs showed fast kinetics of lithium insertion/extraction, demonstrating foreseeable applications in the energy storage. LIB, LIB hooray! Atomically thin anatase TiO2 films with exposed (001) facets were synthesized mediated by hydrogen-bonding networks and an external exfoliation agent during the solvothermal process (see figure). The N2-annealled TiO2 nanofilms showed fast kinetics of lithium insertion/extraction, which originates from its ultrathin feature and exposed (001) facet.

AB - Ultrathin two-dimensional (2D) crystalline materials show high specific surface area (SA) of high energy (HE) facets, imparting a significant improvement in their performances. Herein we report a novel route to synthesize TiO2 nanofilms (NFs) with atomic thickness (<2.0 nm) through a solvothermal reaction mediated by the hydrogen-bonding networks constructed by hydroquinone (HQ). The resultant TiO2 NFs have nearly 100 % exposed (001) facets and give an extremely high SA up to 487 m2 g-1. The synergistic effect of HQ and choline chloride plays a vital role in the formation of TiO2 NFs and in the exposure of HE (001) facets. Because of its ultrathin feature and exposed (001) facet, the N2-annealled TiO2 NFs showed fast kinetics of lithium insertion/extraction, demonstrating foreseeable applications in the energy storage. LIB, LIB hooray! Atomically thin anatase TiO2 films with exposed (001) facets were synthesized mediated by hydrogen-bonding networks and an external exfoliation agent during the solvothermal process (see figure). The N2-annealled TiO2 nanofilms showed fast kinetics of lithium insertion/extraction, which originates from its ultrathin feature and exposed (001) facet.

KW - hydrogen bonds

KW - insertion

KW - lithium

KW - nanostructures

KW - synergistic effect

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Hydrogen-Bonding-Mediated Synthesis of Atomically Thin TiO₂ Films with Exposed (001) Facets and Applications in Fast Lithium Insertion/Extraction

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Keywords

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