Ordered Mesoporous Metallic MoO2 Materials with Highly Reversible Lithium Storage Capacity

Abstract

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.