An excellent support of Pd-Fe-O-x catalyst for low temperature CO oxidation: CeO2 with rich (200) facets

作者：Shen, Yuexin; Lu, Guanzhong^*; Guo, Yun; Wang, Yanqin; Guo, Yanglong; Wang, Li; Zhen, Xiang

来源：Catalysis Communications, 2012, 18: 26-31.

DOI：10.1016/j.catcom.2011.11.010

• Low temperature CO oxidation
• Supported Pd-Fe catalyst
• CeO2 nano-rod
• CeO2 nano-particle
• SBA-15
• Effect of support

Pd-Fe-O-x catalysts for low temperature CO oxidation were supported on SBA-15, CeO2 nano-particles with rich (111) facets and CeO2 nano-rod with rich (200) facets, and characterized by X-ray diffraction, low-temperature nitrogen adsorption, transmission electron microscopy and temperature-programmed reduction. The results showed that when CeO2 nano-rod was used as a support, Pd-Fe-O-x catalyst exhibits higher activity (T-100=10 degrees C), resulting from the rich (200) facets of CeO2 nano-rod, which leads to a formation of large numbers of the oxygen vacancies on the surface of Pd-Fe-O-x catalysts.

• 出版日期2012-2-10
• 单位华东理工大学