Synthesis of porous AMn2O4 (A = Zn, Zn0.5Co0.5, Co) microspheres and their comparative lithium storage performances

摘要: Abstract Porous AMn2O4 (A = Zn, Zn0.5Co0.5, Co) microspheres have been prepared through a carbonate co-precipitation and subsequent heat treatment at 600 °C. X-ray diffraction (XRD) patterns scanning electron microscope (SEM) images reveal that, the porous with hausmannite (Mn3O4) structure are composed of well-defined primary nanoparticles, these nanoparticles size 30–100 nm. As lithium-ion battery anodes, electrochemical properties determined by their chemical compositions. The ZnMn2O4 can retain discharge capacity 698.8 mAh g− 1 after 50 charge–discharge cycles, which is much better than other two oxides. CoMn2O4 shows highest potential among three samples. Interestingly, Zn0.5Co0.5Mn2O4 inherits shortage ZnMn2O4, its cycling stability worst.