Synthesis of nitrogen-doped MnO/graphene nanosheets hybrid material for lithium ion batteries.
Nitrogen-doped MnO/graphene nanosheets (N-MnO/GNS) hybrid material was synthesized by a simple hydrothermal method followed by ammonia annealing. The samples were systematically investigated by X-ray diffraction analysis, Raman spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy, and atomic force microscopy. N-doped MnO (N-MnO) nanoparticles were homogenously anchored on the thin layers of N-doped GNS (N-GNS) to form an efficient electronic/ionic mixed conducting network. This nanostructured hybrid exhibited a reversible electrochemical lithium storage capacity as high as 772 mAh g(-1) at 100 mA g(-1) after 90 cycles, and an excellent rate capability of 202 mA h g(-1) at a high current density of 5 A g(-1). It is expected that N-MnO/GNS hybrid could be a promising candidate material as a high capacity anode for lithium ion batteries.
Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, PR China.
Kejun
K
Zhang
Pengxian
P
Han
Lin
L
Gu
Lixue
L
Zhang
Zhihong
Z
Liu
Qingshan
Q
Kong
Chuanjian
C
Zhang
Shanmu
S
Dong
Zhongyi
Z
Zhang
Jianhua
J
Yao
Hongxia
H
Xu
Guanglei
G
Cui
Liquan
L
Chen
D011211:Electric Power Supplies; D055664:Electrochemical Techniques; D006108:Graphite / Q000737:chemistry*; D008094:Lithium / Q000737:chemistry*; D017895:Manganese Compounds / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry
D017895:Manganese Compounds; D010087:Oxides; C027424:manganese oxide; D006108:Graphite; D008094:Lithium