Synthesis of porous hematite nanorods loaded with CuO nanocrystals as catalysts for CO oxidation

• 作 者: Jianliang Cao Yan Wang Tianyi
• 机 构: Ministry
• 出 处: 天然气化学（英文版）
• 发表日期: 2004年期
• 关键词: porous materials iron oxide nanostructures CuO supported nanocatalysts catalytic
• 基金项目: This work was supported by the National Natural Science Foundation of China;国家重点基础研究发展规划(973计划);the Program for Innovative Research Team in University

Porous hematite (α-Fe2O3) nanorods with the diameter of 20-40 nm and the length of 80-300 nm were synthesized by a simple surfactantassisted method in the presence of cetyltrimethylammonium bromide (CTAB).The α-Fe2O3 nanorods possess a mesostructure with a pore size distribution in the range of 5-12 nm and high surface area,exhibiting high catalytic activity for CO oxidation.CuO nanocrystals were loaded on the surface of porous α-Fe2O3 nanorods by a deposition-precipitation method,and the catalysts exhibited superior activity for catalytic oxidation of CO,as compared with commercial α-Fe2O3 powders supported CuO catalyst.The enhanced catalytic activity was attributed to the strong interaction between the CuO nanocrystals and the support of porous α-Fe2O3 nanorods.