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Hydrogen‐Bonding‐Mediated Synthesis of Atomically Thin TiO 2 Films with Exposed (001) Facets and Applications in Fast Lithium Insertion/Extraction
Author(s) -
Zhang Hongye,
Yang Zhenzhen,
Gan Wei,
Zhao Yanfei,
Yu Bo,
Xu Huanjun,
Ma Zhishuang,
Hao Leiduan,
Chen Dechao,
Miao Shiding,
Liu Zhimin
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201502443
Subject(s) - hydroquinone , materials science , facet (psychology) , lithium (medication) , chemical engineering , extraction (chemistry) , lithium chloride , hydrogen bond , nanotechnology , chemistry , molecule , organic chemistry , medicine , psychology , social psychology , personality , engineering , metallurgy , big five personality traits , endocrinology
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 TiO 2 nanofilms (NFs) with atomic thickness (<2.0 nm) through a solvothermal reaction mediated by the hydrogen‐bonding networks constructed by hydroquinone (HQ). The resultant TiO 2 NFs have nearly 100 % exposed (001) facets and give an extremely high SA up to 487 m 2 g −1 . The synergistic effect of HQ and choline chloride plays a vital role in the formation of TiO 2 NFs and in the exposure of HE (001) facets. Because of its ultrathin feature and exposed (001) facet, the N 2 ‐annealled TiO 2 NFs showed fast kinetics of lithium insertion/extraction, demonstrating foreseeable applications in the energy storage.