Chinese Journal of Catalysis ›› 2012, Vol. 33 ›› Issue (8): 1334-1339.DOI: 10.1016/S1872-2067(11)60408-7

• Research papers • Previous Articles     Next Articles

Low Cost Synthesis of 3D Flowerlike Co3O4 Nanostructures as Active Catalyst for CO Oxidation

CAO Changyan, DOU Zhifeng, LIU Hua, SONG Weiguo*   

  1. Beijing National Laboratory for Molecular Science (BNLMS), Laboratory of Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2012-03-24 Revised:2012-05-07 Online:2012-08-01 Published:2012-08-01

Abstract: 3D flowerlike Co3O4 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 hydrolysis of urea determine the morphology of Co3O4 nanostructures. These flowerlike Co3O4 nanostructures have high surface area and expose largely active (110) planes, leading to relative high catalytic activity in CO oxidation.

Key words: carbon monoxide, oxidation, cobaltosic oxide, nanostructure, microwave