Noble Metal-Free Ceria-Zirconia Solid Solutions Templated by Tobacco Materials for Catalytic Oxidation of CO

被引：11

作者：

Zhu, Donglai ^{[1
]}

Duan, Deliang ^{[2
]}

Han, Yi ^{[1
]}

He, Jiao ^{[2
]}

He, Yi ^{[2
]}

Chen, Yongjuan ^{[2
]}

Zhang, Wei ^{[1
]}

Yan, Zhiyin ^{[2
]}

Wang, Jiaqiang ^{[2
]}

Yuan, Fagui ^{[2
]}

机构：

[1] Yunnan Ind China Tobacco Ind CO Ltd, Res & Technol Ctr, Kunming 650231, Peoples R China

[2] Yunnan Univ, Yunnan Prov Collaborat Innovat Ctr Green Chem Lig, Yunnan Prov Engn Res Ctr Photocatalyt Treatment I, Sch Energy,Sch Chem Sci & Technol,Univ Ctr Photoc, Kunming 650091, Peoples R China

来源：

CATALYSTS | 2016年 / 6卷 / 09期

基金：

中国国家自然科学基金;

关键词：

ceria-zirconia solid solutions; catalytic oxidation; CO; tobacco biotemplates; OXYGEN STORAGE CAPACITY; HYDROTHERMAL SYNTHESIS; REDOX PROPERTIES; MIXED OXIDES; AUTOMOTIVE; CEO2; MICROSTRUCTURE; NANOCRYSTALS; REDUCTION; PROPERTY;

D O I：

10.3390/catal6090135

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of ceria-zirconia solid solutions were synthesized using tobacco leaves, stems and stem-silks as biotemplates. A combination of physicochemical techniques such as powder X-ray diffraction (XRD), N-2 adsorption/desorption measurement, scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were used to characterize the as-synthesized samples. The results show that the morphologies of the templates were well replicated in the obtained ceria-zirconia solid solutions. Catalytic oxidation activities of CO over the ceria-zirconia solid solutions were then investigated. The catalyst templated by tobacco stem-silk exhibited higher conversion of CO at lower temperature than that of ceria-zirconia solid solutions templated by tobacco leaves and stems or without templates due to its special morphology. The catalyst even showed similar CO conversion when compared to ceria-zirconia solid solutions doped with 1.0 wt % noble metals such as Pt, Ag and Au. The results highlighted the advantages of using tobacco as biotemplate.

引用

页数：11

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