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Hollow Multi‐Shelled Structure with Metal–Organic‐Framework‐Derived Coatings for Enhanced Lithium Storage
Author(s) -
Zhang Jian,
Wan Jiawei,
Wang Jiangyan,
Ren Hao,
Yu Ranbo,
Gu Lin,
Liu Yunling,
Feng Shouhua,
Wang Dan
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201814563
Subject(s) - lithium (medication) , metal organic framework , anode , materials science , chemical engineering , casing , hydrothermal circulation , particle (ecology) , electrode , nanotechnology , chemistry , adsorption , organic chemistry , medicine , oceanography , geology , petroleum engineering , engineering , endocrinology
Herein, we present heterogeneous hollow multi‐shelled structures (HoMSs) prepared by exploiting the properties of the metal–organic framework (MOFs) casing. Through accurately controlling the transformation of MOF layer into different heterogeneous casings, we can precisely design HoMSs of SnO 2 @Fe 2 O 3 (MOF) and SnO 2 @FeO x ‐C(MOF), which not only retain properties of the original SnO 2 ‐HoMSs, but also structural information from the MOFs. Tested as anode materials in LIBs, SnO 2 @Fe 2 O 3 (MOF)‐HoMSs demonstrate superior lithium‐storage capacity and cycling stability to the original SnO 2 ‐HoMSs, which can be attributed to the topological features from the MOF casing. Making a sharp contrast to the electrodes of SnO 2 @Fe 2 O 3 (particle)‐HoMSs fabricated by hydrothermal method, the capacity retention after 100 cycles for the SnO 2 @Fe 2 O 3 (MOF)‐HoMSs is about eight times higher than that of the SnO 2 @Fe 2 O 3 (particle)‐HoMS.