Facile synthesis of uniform mesoporous ZnCo2O4 microspheres as a high-performance anode material for Li-ion batteries

• DOI: 10.1039/c3ta00085k
• Publication Date: 2013-03-07T12:52:24Z
• Authors: Lingling Hu; Baihua Qu; Chengchao Li; Yuejiao Chen; Lin Mei; Danni Lei; Libao Chen; Qiuhong Li; Taihong Wang
• Keywords: Specific surface area

In this paper, three dimensional (3D) uniform ZnCo-glycolate precursor microspheres composed of nanosheets were successfully synthesized via a facile ethylene glycol (EG) mediated solvothermal method. Through moderate calcination the as-synthesized precursor, they could be converted into mesoporous ZnCo2O4 with surrounding nanoparticles. The obtained samples systematically characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission (TEM), photoelectron spectroscopy (XPS) and N2 adsorption–desorption. results demonstrated that tuning surface texture pore size products very significant in Li-ion batteries (LIBs). exhibit excellent high specific capacity, superior rate capability, enhanced cycling performance. At current density 100 mA g−1, exhibited initial capacity 1332 mAh g−1. maintain at 721 g−1 after 80 discharge–charge cycles. Even as reached to 1000 still showed 937 discharge 432 was retained 40