Abstract
The synthesis of materials with ordered or self-assembled superstructures provides opportunities to tune the material's physical and chemical properties for energy storage device applications. Here, we report the synthesis of a three-dimensional (3-D) hierarchical cobalt orthophosphate (Co3(PO4)2) compound by a facile wet-chemical route at a low temperature (65 °C), followed by a dehydration process (600 °C). The resulting cobalt orthophosphate compounds were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), and thermogravimetric (TG)/differential thermal analysis (DTA). The compounds' electrochemical behavior for lithium-ion batteries was also investigated. Analysis revealed the flower-like microarchitecture of the cobalt orthophosphate compound, in which porous nano-plates with an average thickness of 150 nm were self-assembled into a microscale superstructure. As an anode material for lithium-ion batteries, the optimal cobalt orthophosphate compound showed stable cycle performance (0.083% capacity decay per cycle over 100 cycles).
Original language | English |
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Article number | 35198 |
Pages (from-to) | 100-105 |
Number of pages | 6 |
Journal | Journal of Alloys and Compounds |
Volume | 652 |
DOIs | |
Publication status | Published - 2015 Dec 15 |
Keywords
- Cobalt orthophosphate
- Hierarchical superstructure
- Lithium-ion batteries
- Porous nano-plates
- Wet-chemical route
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry