3D Hierarchical Carbon Microflowers decorated with MoO2 Nanoparticles for lithium ion batteries. (1st October 2017)

• Record Type: Journal Article
• Authors: Zhang, Peng; Zou, Lei; Hu, Hongxing; Wang, Mengran; Fang, Jing; Lai, Yanqing; Li, Jie
• Is Part Of: Electrochimica acta. Volume 250(2017)
• Page Start: 219
• Page End: 227
• Publication Date: 2017-10-01
• Subjects: self-assembly -- molybdenum oxide -- lithium ion batteries; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2017.08.066
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: The three dimensional hierarchical carbon microflowers decorated with MoO2 nanoparticles (MoO2 /CF) were fabricated by a facile method. During the experiment process, MoO4 2− anions are attached on the dopamine along with self-polymerization of dopamine under alkaline solution, forming the Mo-polydopamine compound (AHM-PDA). Then it is carbonized, forming MoO2 /CF. The size of the MoO2 /CF can be adjusted by the amount of dopamine, and the MoO2 nanoparticles decorated on the carbon microflowers are 1–2 or 30–50 nm in size at different conditions. Owing to the unique structure, the obtained MoO2 /CF composite exhibits a high reversible specific capacity of 690 mA h g −1 after 200 cycles at 500 mA g −1, and even displays 576 mA h g −1 at 1000 mA g −1 after 200 cycles. The improved electrochemical performance suggests that MoO2 /CF composite is a promising anode material for lithium ion storage.