TY - JOUR
T1 - Synthesis of two-dimensional transition-metal phosphates with highly ordered mesoporous structures for lithium-ion battery applications
AU - Yang, Dan
AU - Lu, Ziyang
AU - Rui, Xianhong
AU - Huang, Xiao
AU - Li, Hai
AU - Zhu, Jixin
AU - Zhang, Wenyu
AU - Lam, Yeng Ming
AU - Hng, Huey Hoon
AU - Zhang, Hua
AU - Yan, Qingyu
PY - 2014/8/25
Y1 - 2014/8/25
N2 - Materials with ordered mesoporous structures have shown great potential in a wide range of applications. In particular, the combination of mesoporosity, low dimensionality, and well-defined morphology in nanostructures may exhibit even more attractive features. However, the synthesis of such structures is still challenging in polar solvents. Herein, we report the preparation of ultrathin two-dimensional (2D) nanoflakes of transition-metal phosphates, including FePO4, Mn3(PO4)2, and Co3(PO4)2, with highly ordered mesoporous structures in a nonpolar solvent. The as-obtained nanoflakes with thicknesses of about 3.7nm are constructed from a single layer of parallel-packed pore channels. These uniquely ordered mesoporous 2D nanostructures may originate from the 2D assembly of cylindrical micelles formed by the amphiphilic precursors in the nonpolar solvent. The 2D mesoporous FePO4 nanoflakes were used as the cathode for a lithium-ion battery, which exhibits excellent stability and high rate capabilities. Ultrathin two-dimensional (2D) nanoflakes of transition-metal phosphates, including FePO4 (see TEM image), Mn 3(PO4)2, and Co3(PO 4)2, with highly ordered mesoporous structures have been successfully synthesized in a nonpolar solvent. The use of the 2D mesoporous FePO4 nanoflake as a cathode in a lithium-ion battery resulted in excellent stability and high rate capabilities.
AB - Materials with ordered mesoporous structures have shown great potential in a wide range of applications. In particular, the combination of mesoporosity, low dimensionality, and well-defined morphology in nanostructures may exhibit even more attractive features. However, the synthesis of such structures is still challenging in polar solvents. Herein, we report the preparation of ultrathin two-dimensional (2D) nanoflakes of transition-metal phosphates, including FePO4, Mn3(PO4)2, and Co3(PO4)2, with highly ordered mesoporous structures in a nonpolar solvent. The as-obtained nanoflakes with thicknesses of about 3.7nm are constructed from a single layer of parallel-packed pore channels. These uniquely ordered mesoporous 2D nanostructures may originate from the 2D assembly of cylindrical micelles formed by the amphiphilic precursors in the nonpolar solvent. The 2D mesoporous FePO4 nanoflakes were used as the cathode for a lithium-ion battery, which exhibits excellent stability and high rate capabilities. Ultrathin two-dimensional (2D) nanoflakes of transition-metal phosphates, including FePO4 (see TEM image), Mn 3(PO4)2, and Co3(PO 4)2, with highly ordered mesoporous structures have been successfully synthesized in a nonpolar solvent. The use of the 2D mesoporous FePO4 nanoflake as a cathode in a lithium-ion battery resulted in excellent stability and high rate capabilities.
KW - lithium-ion batteries
KW - mesoporous materials
KW - nonpolar solvents
KW - transition-metal phosphates
KW - ultrathin flakes
UR - http://www.scopus.com/inward/record.url?scp=84908459840&partnerID=8YFLogxK
U2 - 10.1002/anie.201404615
DO - 10.1002/anie.201404615
M3 - 文章
AN - SCOPUS:84908459840
SN - 1433-7851
VL - 53
SP - 9352
EP - 9355
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 35
ER -
