TY - JOUR
T1 - Facile solvothermal synthesis of mesoporous manganese ferrite (MnFe2O4) microspheres as anode materials for lithium-ion batteries
AU - Zhang, Zailei
AU - Wang, Yanhong
AU - Tan, Qiangqiang
AU - Zhong, Ziyi
AU - Su, Fabing
N1 - Funding Information:
The authors gratefully acknowledge the supports from the Hundred Talents Program of the Chinese Academy of Sciences (CAS), State Key Laboratory of Multiphase Complex Systems of China (No. MPCS-2011-D-14 ), and National Natural Science Foundation of China (Nos. 21031005 and 51272252 ).
PY - 2013/5/15
Y1 - 2013/5/15
N2 - We report the synthesis and characterization of the mesoporous manganese ferrite (MnFe2O4) microspheres as anode materials for Li-ion batteries. MnFe2O4 microspheres were synthesized by a facile solvothermal method using Mn(CH3COO)2 and FeCl3 as metal precursors in the presence of CH3COOK, CH3COOC2H5, and HOCH2CH2OH. The samples were characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy, nitrogen adsorption, thermal gravimetric, X-ray photoelectron spectroscopy, temperature programmed reduction, and temperature programmed oxidation. The synthesized mesoporous MnFe2O4 microspheres composed of nanoparticles (10-30nm) were 100-500nm in diameter and had surface areas between 60.2 and 86.8m2g-1, depending on the CH3COOK amounts added in the preparation. After calcined at 600°C, MnFe2O4 was decomposed to Mn2O3 and Fe2O3 mixture. The mesoporous MnFe2O4 microspheres calcined at 400°C showed a capacity of 712.2mAhg-1 at 0.2C and 552.2mAhg-1 at 0.8C after 50cycles, and an average capacity fading rate of around 0.28%/cycle and 0.48%/cycle, much better than those of the samples without calcination and calcined at 600°C. The work would be helpful in the fabrication of binary metal oxide anode materials for Li-ion batteries.
AB - We report the synthesis and characterization of the mesoporous manganese ferrite (MnFe2O4) microspheres as anode materials for Li-ion batteries. MnFe2O4 microspheres were synthesized by a facile solvothermal method using Mn(CH3COO)2 and FeCl3 as metal precursors in the presence of CH3COOK, CH3COOC2H5, and HOCH2CH2OH. The samples were characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy, nitrogen adsorption, thermal gravimetric, X-ray photoelectron spectroscopy, temperature programmed reduction, and temperature programmed oxidation. The synthesized mesoporous MnFe2O4 microspheres composed of nanoparticles (10-30nm) were 100-500nm in diameter and had surface areas between 60.2 and 86.8m2g-1, depending on the CH3COOK amounts added in the preparation. After calcined at 600°C, MnFe2O4 was decomposed to Mn2O3 and Fe2O3 mixture. The mesoporous MnFe2O4 microspheres calcined at 400°C showed a capacity of 712.2mAhg-1 at 0.2C and 552.2mAhg-1 at 0.8C after 50cycles, and an average capacity fading rate of around 0.28%/cycle and 0.48%/cycle, much better than those of the samples without calcination and calcined at 600°C. The work would be helpful in the fabrication of binary metal oxide anode materials for Li-ion batteries.
KW - Anode materials
KW - Electrochemical properties
KW - Li-ion batteries
KW - Mesoporous manganese ferrite microspheres
UR - http://www.scopus.com/inward/record.url?scp=84876486883&partnerID=8YFLogxK
U2 - 10.1016/j.jcis.2013.01.067
DO - 10.1016/j.jcis.2013.01.067
M3 - 文章
C2 - 23489612
AN - SCOPUS:84876486883
SN - 0021-9797
VL - 398
SP - 185
EP - 192
JO - Journal of Colloid and Interface Science
JF - Journal of Colloid and Interface Science
ER -
