Premium
In Situ Growth of Hierarchical SnO 2 Nanosheet Arrays on 3D Macroporous Substrates as High‐Performance Electrodes
Author(s) -
Zhao Xinyu,
Liu Bing,
Hu Changwen,
Cao Minhua
Publication year - 2014
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.201303548
Subject(s) - nanosheet , materials science , anode , electrode , nanotechnology , lithium (medication) , substrate (aquarium) , electrochemistry , carbon fibers , oxide , lithium ion battery , electrochemical energy storage , battery (electricity) , supercapacitor , composite material , metallurgy , chemistry , medicine , power (physics) , oceanography , physics , quantum mechanics , endocrinology , geology , composite number
Finding out how to overcome the self‐aggregation of nanostructured electrode materials is a very important issue in lithium‐ion battery technology. Herein, by an in situ construction strategy, hierarchical SnO 2 nanosheet architectures have been fabricated on a three‐dimensional macroporous substrate, and thus the aggregation of the SnO 2 nanosheets was effectively prevented. The as‐prepared hierarchical SnO 2 nanoarchitectures on the nickel foam can be directly used as an integrated anode for lithium‐ion batteries without the addition of other ancillary materials such as carbon black or binder. In view of their apparent advantages, such as high electroactive surface area, ultrathin sheet, robust mechanical strength, shorter ion and electron transport path, and the specific macroporous structure, the hierarchical SnO 2 nanosheets exhibit excellent lithium‐storage performance. Our present growth approach offers a new technique for the design and synthesis of metal oxide hierarchical nanoarrays that are promising for electrochemical energy‐storage electrodes without carbon black and binder.