TY - JOUR
T1 - One-nanometer-precision control of Al2O3 nanoshells through a solution-based synthesis route
AU - Zhang, Wei
AU - Chi, Zi-Xiang
AU - Mao, Wen-Xin
AU - Lv, Rong-Wen
AU - Cao, An-Min
AU - Wan, Li-Jun
PY - 2014/11/17
Y1 - 2014/11/17
N2 - 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 Al2O3, 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 Al2O3 can be readily tuned on the surface for an optimized battery performance. Uniform surface coatings of Al2O3 with a thickness controllable at the one nanometer level were achieved by a solution-based synthesis route. Application of this coating methodology to LiCoO2 showed that its battery performance as a cathode material can be optimized by means of systematic surface control.
AB - 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 Al2O3, 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 Al2O3 can be readily tuned on the surface for an optimized battery performance. Uniform surface coatings of Al2O3 with a thickness controllable at the one nanometer level were achieved by a solution-based synthesis route. Application of this coating methodology to LiCoO2 showed that its battery performance as a cathode material can be optimized by means of systematic surface control.
KW - AlO coating
KW - core-shell structure
KW - layer thickness
KW - lithium-ion batteries
UR - http://www.scopus.com/inward/record.url?scp=84911443874&partnerID=8YFLogxK
U2 - 10.1002/anie.201406856
DO - 10.1002/anie.201406856
M3 - Article
C2 - 25336171
AN - SCOPUS:84911443874
VL - 53
SP - 12776
EP - 12780
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
SN - 1433-7851
IS - 47
ER -