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

doi:10.1016/S1003-9953(10)60238-1

能源化学(英文) ›› 2011, Vol. 20 ›› Issue (6): 669-676.DOI: 10.1016/S1003-9953(10)60238-1

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

Jianliang Cao, Yan Wang, Tianyi Ma, Yuping Liu, Zhongyong Yuan*

Institute of New Catalytic Materials science, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai
University, Tianjin 300071, China

收稿日期:2011-02-16 修回日期:2011-07-26 出版日期:2011-11-20 发布日期:2011-11-18
通讯作者: 袁忠勇
基金资助:
National Natural Science Foundation of China

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

Jianliang Cao, Yan Wang, Tianyi Ma, Yuping Liu, Zhongyong Yuan*

Institute of New Catalytic Materials science, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai
University, Tianjin 300071, China

Received:2011-02-16 Revised:2011-07-26 Online:2011-11-20 Published:2011-11-18
Contact: Zhong-Yong Yuan
Supported by:
Project supported by a grant from the Ph.D. Programs Foundation of Ministry of Education of China

摘要/Abstract

摘要： Porous hematite (α-Fe₂O₃) nanorods with the diameter of 20--40 nm and the length of 80--300 nm were synthesized by a simple surfactant-assisted 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.

关键词: porous materials, iron oxide, nanostructures, CuO, supported nanocatalysts, catalytic CO oxidation

Abstract: Porous hematite (α-Fe₂O₃) nanorods with the diameter of 20--40 nm and the length of 80--300 nm were synthesized by a simple surfactant-assisted 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.

Key words: porous materials, iron oxide, nanostructures, CuO, supported nanocatalysts, catalytic CO oxidation

Jianliang Cao, Yan Wang, Tianyi Ma, Yuping Liu, Zhongyong Yuan* . Synthesis of porous hematite nanorods loaded with CuO nanocrystals as catalysts for CO oxidation [J]. 能源化学(英文), 2011, 20(6): 669-676.

Jianliang Cao, Yan Wang, Tianyi Ma, Yuping Liu, Zhongyong Yuan* . Synthesis of porous hematite nanorods loaded with CuO nanocrystals as catalysts for CO oxidation [J]. Journal of Energy Chemistry, 2011, 20(6): 669-676.

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

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

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