A high performance electrode material for lithium ion batteries derived from a cobalt-based coordination polymer
| Autor: | Fatima Nasim, Tehseen Ilyas, Mohammad Choucair, Amin Badshah, Shafiq Ullah, M. Abdullah Khan, Muhammad Nadeem |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Chemical substance
Renewable Energy Sustainability and the Environment Carbonization Coordination polymer Composite number Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Electrochemistry 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Bipyridine Fuel Technology chemistry Chemical engineering X-ray photoelectron spectroscopy Organic chemistry 0210 nano-technology Cobalt |
| Zdroj: | International Journal of Hydrogen Energy. 41:17029-17036 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2016.07.067 |
| Popis: | A carbon rich co-ordination polymer, [Co(fa)(bpy)]n (1), based on formic acid (fa) and an auxiliary ligand 4,4′-bipyridine (bpy) is utilized as a single source precursor to an exceptional lithium-ion battery electrode material. Compound 1 consists of cobalt-formate chains connected via bipyridine ligands into a three dimensional lattice. A cobalt-oxide/carbon composite material is obtained by the controlled carbonization of 1 at 900 °C. Morphological, structural, and chemical analysis of the composite is carried out with HR–TEM, XPS and PXRD techniques. This new composite material demonstrates a high specific capacity of 1080 mAh g−1, a coulombic efficiency of 94%, and a stable cyclic retention for upto 30 cycles. The electrochemical properties of this new material are discussed in relation to the structural and chemical characteristics of precursor dependence of the carbonized hybrid nanomaterial. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect