三维花状Co_3O_4的低成本制备及其在催化CO氧化中的应用(英文)

Low Cost Synthesis of 3D Flowerlike Co_3O_4 Nanostructures as Active Catalyst for CO Oxidation

采用一种快速、无模板、低成本的微波辅助水热法在2min内制备了三维花状Co3O4.所用原料均是无机盐.前驱体浓度和尿素的逐渐水解对Co3O4形貌影响很大.制得的花状Co3O4比表面积大,且暴露了(110)高活性指数面,对CO氧化具有较高的催化活性.

3D flowerlike Co304 nanostructures were prepared by a microwave-assisted hydrothermal method, which is a rapid, template-free, and low cost method. The product is obtained in two minutes using all inorganic precursors. The precursor concentration and gradual hy- drolysis of urea determine the morphology of C0304 nanostructures. These flowerlike C0~O4 nanostructures have high surface area and ex- pose largely active （110） planes, leading to relative high catalytic activity in CO oxidation.