Citation: HUANG Li-Hua, CHEN Shan-Hu, GONG Mao-Chu, CHEN Yao-Qiang. The Structure and Performance of Pd/Ce_0.65Zr_0.35O₂ Catalysts Prepared by Soft-Hard Template Method[J]. Chinese Journal of Inorganic Chemistry, ;2016, 32(2): 193-201. doi: 10.11862/CJIC.2016.004 shu

The Structure and Performance of Pd/Ce_0.65Zr_0.35O₂ Catalysts Prepared by Soft-Hard Template Method

1.
Institute of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China
2.
College of Chemistry, Sichuan University, Chengdu 610064, China

Corresponding author: CHEN Yao-Qiang, nic7501@scu.edu.cn
Received Date: 15 July 2015
Revised Date: 7 September 2015

Figures(10)

Ce_0.65Zr_0.35O₂ (CZ) was synthesized by soft-hard template method and its corresponding Pd only catalyst was also prepared. The intermediate product and CZ were characterized by energy dispersive spectrometer (EDS) and laser raman spectroscopy. The Pd/CZ catalyst was investigated by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), N₂-physical adsorption, oxygen storage capacity (OSC), impulse CO chemisorption and H₂-temperature programmed reduction (H₂-TPR) technologies. It was found that soft-hard template method offered catalyst with high surface area and pore volume, enhanced the ratio of Ce³⁺, Pd dispersion and homogeneity of solid solution. It also imparted catalyst excellent three-way catalytic performance before and after aging. After aging, the light-off temperatures to C₃H₈, CO and NO were 318, 180 and 210 ℃ respectively, which were lower than aged catalyst synthesised by soft template, behaved strong anti-sintering property.
- template method,
- oxygen storage material,
- catalyst,
- catalytic performance
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

The Structure and Performance of Pd/Ce0.65Zr0.35O2 Catalysts Prepared by Soft-Hard Template Method

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通讯作者: 陈斌, bchen63@163.com

The Structure and Performance of Pd/Ce_0.65Zr_0.35O₂ Catalysts Prepared by Soft-Hard Template Method