Hollow Multi‐Shelled Structure with Metal–Organic‐Framework‐Derived Coatings for Enhanced Lithium Storage
Article 2019 en
Authors
JZ
Jian Zhang
JW
Jiawei Wan
JW
Jiangyan Wang
Abstract
1 min read
Abstract 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.
Discussion(0)
No comments yet. Be the first to comment.