Jump to main content
Jump to site search


Facile synthesis of metal hydroxide nanoplates and their application as lithium-ion battery anodes

Author affiliations

Abstract

We report a facile approach to synthesize hexagon-shaped nanoplates of various metal (oxy)hydroxides under aqueous solutions while avoiding complex processes. This synthetic method can be generally applied to fabricate various nanoplates, including not only single-metallic (oxy)hydroxides such as Co(OH)2, MnO(OH), FeO(OH), and Mg(OH)2 but also mixed-metal (oxy)hydroxides, where each metal component is homogeneously distributed and the atomic ratio of the metal species can be easily controlled by varying the precursor ratio. Carbon-coated metal oxide nanoplates, which are prepared by coating of polydopamine followed by heat treatment, are applied as anode materials for lithium-ion batteries (LIB). Core–shell nanoplates of CoO@C, MnO@C and Fe3O4@C exhibit excellent cycle stability with a high specific capacity of ∼1000 mA h g−1. In particular, the effect of carbon shell thickness on electrochemical performance is studied using CoO@C nanoplates with different carbon shell thicknesses. CoO@C with a 6.5 nm-thick carbon coating exhibits good cycling performance and maintains a high rechargeable capacity of 997 mA h g−1 even after 100 cycles at a current density of 200 mA g−1, while CoO@C with a 1.5 nm-thick carbon shell shows a significantly decreased capacity of 315 mA h g−1 after the 100th cycle.

Graphical abstract: Facile synthesis of metal hydroxide nanoplates and their application as lithium-ion battery anodes

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 01 Feb 2017, accepted on 06 Apr 2017 and first published on 07 Apr 2017


Article type: Paper
DOI: 10.1039/C7TA01028A
Citation: J. Mater. Chem. A, 2017, Advance Article
  •   Request permissions

    Facile synthesis of metal hydroxide nanoplates and their application as lithium-ion battery anodes

    D. J. Lee, S. Yu, H. S. Lee, A. Jin, J. Lee, J. E. Lee, Y. Sung and T. Hyeon, J. Mater. Chem. A, 2017, Advance Article , DOI: 10.1039/C7TA01028A

Search articles by author