Ordered Mesoporous Metallic MoO2 Materials with Highly Reversible Lithium Storage Capacity
| Autor: | Serena A. Corr, Bingkun Guo, Galen Stucky, Ram Seshadri, Liquan Chen, Kevin Ray Heier, Qihui Shi, Yong-Sheng Hu, Yifeng Shi |
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| Rok vydání: | 2009 |
| Předmět: |
Materials science
Macromolecular Substances Surface Properties Inorganic chemistry Molecular Conformation Metal Nanoparticles chemistry.chemical_element Bioengineering Lithium chemistry.chemical_compound Electric Power Supplies Materials Testing Nanotechnology General Materials Science Particle Size Molybdenum Mechanical Engineering Oxides General Chemistry Mesoporous silica Condensed Matter Physics Lithium battery Template reaction Mesoporous organosilica chemistry Phosphomolybdic acid Crystallization Mesoporous material Porosity Molybdenum dioxide |
| Zdroj: | Nano Letters. 9:4215-4220 |
| ISSN: | 1530-6992 1530-6984 |
| DOI: | 10.1021/nl902423a |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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