Article Title

Ni₃Si₂O₅(OH)₄ multi-walled nanotubes with tunable magnetic properties and their application as anode materials for lithium batteries

Authors

Yan Yang, Department of Chemistry, Tsinghua University, Beijing 100084, China College of Environmental Science and Engineering, Chang’an University, Xi’an 710054, China
Qingqin Liang, Department of Chemistry, Tsinghua University, Beijing 100084, China
Jinghong Li, Department of Chemistry, Tsinghua University, Beijing 100084, China
Yuan Zhuang, Department of Chemistry, Tsinghua University, Beijing 100084, China
Yunhua He, College of Environmental Science and Engineering, Chang’an University, Xi’an 710054, China
Bo Bai, College of Environmental Science and Engineering, Chang’an University, Xi’an 710054, China
Xun Wang, Department of Chemistry, Tsinghua University, Beijing 100084, China

Keywords

Silicate nanotubes, Ni nanocrystals, lithium battery, magnetic properties

Abstract

Highly crystalline and thermally stable pure multi-walled Ni3Si2O5(OH)4 nanotubes with a layered structure have been synthesized in water at a relatively low temperature of 200–210 °C using a facile and simple method. The nickel ions between the layers could be reduced in situ to form size-tunable Ni nanocrystals, which endowed these nanotubes with tunable magnetic properties. Additionally, when used as the anode material in a lithium ion battery, the layered structure of the Ni3Si2O5(OH)4 nanotubes provided favorable transport kinetics for lithium ions and the discharge capacity reached 226.7 mA·h·g–1 after 21 cycles at a rate of 20 mA·g–1. Furthermore, after the nanotubes were calcined (600 °C, 4 h) or reduced (180 °C, 10 h), the corresponding discharge capacities increased to 277.2 mA·h·g–1 and 308.5 mA·h·g–1, respectively.

Graphical Abstract

DOI

https://doi.org/10.1007/s12274-011-0144-7

Publisher

Tsinghua University Press

Recommended Citation

Yan Yang,Qingqin Liang,Jinghong Li,Yuan Zhuang,Yunhua He,Bo Bai,Xun Wang, Ni3Si2O5(OH)4 multi-walled nanotubes with tunable magnetic properties and their application as anode materials for lithium batteries. NanoRes.2011, 4(9): 882–890