title: One-nanometer-precision control of Al(2)O(3) nanoshells through a solution-based synthesis route.
abstract: Forming uniform metal oxide nanocoatings is a well-known challenge in the construction of core-shell type nanomaterials. Herein, by using buffer solution as a specific reaction medium, we demonstrate the possibility to grow thin nanoshells of metal oxides, typically Al2 O3 , on different kinds of core materials, forming a uniform surface-coating layer with thicknesses achieving one nanometer precision. The application of this methodology for the surface modification of LiCoO2 shows that a thin nanoshell of Al2 O3 can be readily tuned on the surface for an optimized battery performance.
authors.affiliation: Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences(CAS), Beijing 100190 (China).
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.forename: Zi-Xiang
authors.initials: ZX
authors.lastname: Chi
authors.forename: Wen-Xin
authors.initials: WX
authors.lastname: Mao
authors.forename: Rong-Wen
authors.initials: RW
authors.lastname: Lv
authors.forename: An-Min
authors.initials: AM
authors.lastname: Cao
authors.forename: Li-Jun
authors.initials: LJ
authors.lastname: Wan
mesh_terms: D000537:Aluminum Oxide / Q000138:chemical synthesis* / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D010316:Particle Size; D012996:Solutions; D013499:Surface Properties
chemical_list: D012996:Solutions; D000537:Aluminum Oxide
keywords: Al2O3 coating; core-shell structure; layer thickness; lithium-ion batteries