Ordered Mesoporous Metallic MoO2 Materials with Highly Reversible Lithium Storage Capacity

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• 作者：Yifeng Shi ; Bingkun Guo ; Serena A. Corr ; Qihui Shi ; Yong-Sheng Hu ; Kevin R. Heier ; Liquan Chen ; Ram Seshadri ; Galen D. Stucky
• 刊名：Nano Letters
• 出版年：2009
• 出版时间：December 9, 2009
• 年：2009
• 卷：9
• 期：12
• 页码：4215-4220
• 全文大小：217K
• 年卷期：v.9,no.12(December 9, 2009)
• ISSN：1530-6992

文摘

Highly ordered mesoporous crystalline MoO₂ 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% H₂ atmosphere via nanocasting strategy. The prepared mesoporous MoO₂ material shows a typical metallic conductivity with a low resistivity (0.01Ω cm at 300 K), which makes it different from all previously reported mesoporous metal oxides materials. Primary test found that mesoporous MoO₂ 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.