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Hierarchically porous Co3O4 hollow spheres with tunable pore structure and enhanced catalytic activity
Chang-An Wang1, Sa Li, Linan An
1State Key Lab of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, PR China. wangca@tsinghua.edu.cn
Abstract:
Co3O4 hollow spheres with two-level hierarchical pores and high surface area are synthesized, and the shell thickness and the mesoporous structure are well-tuned through pre-treatment of the carbon spheres with alkali/acid. Evaluation of the Co3O4 hollow spheres for the combustion of CH4 reveals that they exhibit excellent catalytic activity and durability.
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