Mesoporous CoNiO2 microflowers assembled with single-crystal nanosheets were successfully synthesized by a hydrothermal method and subsequent annealing process and their lithium storage capacity were investigated. The structural and compositional analysis of the mesoporous CoNiO2 microflowers has been studied by X-ray diffraction, field emission scanning electron microscopy and high-resolution transmission electron microscopy. The Bruauer-Emmett-Teller specific surface area of CoNiO2 microflowers has been calculated by the nitrogen isotherm curve and pore size distribution has been determined by the Barret-Joyner-Halenda method. It has been found that the as-prepared CoNiO2 electrodes delivered satisfied capacity, good cycling stability and rate capability. The improved electrochemical performance is attributed to the mesoporous nature and the 3D assembled structure. Therefore, such a structure can be considered to be an attractive candidate as an electrode material for lithium-ion batteries. © 2014 Elsevier Ltd.
- CoNiO2 microflowers
- Lithium-ion batteries
Liu, Y., Zhao, Y., Yu, Y., Ahmad, M., & Sun, H. (2014). Facile synthesis of single-crystal mesoporous CoNiO2 nanosheets assembled flowers as anode materials for lithium-ion batteries. Electrochimica Acta, 132, 404-409. https://doi.org/10.1016/j.electacta.2014.03.155