Ordered mesoporous metallic MoO2 materials with highly reversible lithium storage capacity.
Highly ordered mesoporous crystalline MoO(2) materials with bicontinuous Ia3d mesostructure were synthesized by using phosphomolybdic acid as a precursor and mesoporous silica KIT-6 as a hard template in a 10% H(2) atmosphere via nanocasting strategy. The prepared mesoporous MoO(2) material shows a typical metallic conductivity with a low resistivity ( approximately 0.01Omega cm at 300 K), which makes it different from all previously reported mesoporous metal oxides materials. Primary test found that mesoporous MoO(2) material exhibits a reversible electrochemical lithium storage capacity as high as 750 mA h g(-1) at C/20 after 30 cycles, rendering it as a promising anode material for lithium ion batteries.
Shi
Yifeng
Y
Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA.
Guo
Bingkun
B
Corr
Serena A
SA
Shi
Qihui
Q
Hu
Yong-Sheng
YS
Heier
Kevin R
KR
Chen
Liquan
L
Seshadri
Ram
R
Stucky
Galen D
GD
D003460:Crystallization / Q000379:methods*; D011211:Electric Power Supplies; D008094:Lithium / Q000737:chemistry*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D008968:Molecular Conformation; D008982:Molybdenum / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D010087:Oxides / Q000737:chemistry*; D010316:Particle Size; D016062:Porosity; D013499:Surface Properties
D046911:Macromolecular Substances; D010087:Oxides; C539565:molybdenum dioxide; D008982:Molybdenum; D008094:Lithium