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One-Pot Synthesis of Mn-Doped CeO2 Nanospheres for CO Oxidation

Authors

  • Xueying Zhang,

    1. Key Laboratory for Special Functional Aggregate Materials of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, 27 Shanda Nanlu, Jinan, Shandong 250100, People's Republic of China, Fax: +86-531-88564464, http://www.sdu.edu.cn
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  • Jingjing Wei,

    1. Key Laboratory for Special Functional Aggregate Materials of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, 27 Shanda Nanlu, Jinan, Shandong 250100, People's Republic of China, Fax: +86-531-88564464, http://www.sdu.edu.cn
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  • Hongxiao Yang,

    1. Key Laboratory for Special Functional Aggregate Materials of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, 27 Shanda Nanlu, Jinan, Shandong 250100, People's Republic of China, Fax: +86-531-88564464, http://www.sdu.edu.cn
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  • Xiufang Liu,

    1. Key Laboratory for Special Functional Aggregate Materials of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, 27 Shanda Nanlu, Jinan, Shandong 250100, People's Republic of China, Fax: +86-531-88564464, http://www.sdu.edu.cn
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  • Wei Liu,

    1. Key Laboratory for Special Functional Aggregate Materials of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, 27 Shanda Nanlu, Jinan, Shandong 250100, People's Republic of China, Fax: +86-531-88564464, http://www.sdu.edu.cn
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  • Cong Zhang,

    1. Key Laboratory for Special Functional Aggregate Materials of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, 27 Shanda Nanlu, Jinan, Shandong 250100, People's Republic of China, Fax: +86-531-88564464, http://www.sdu.edu.cn
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  • Yanzhao Yang

    1. Key Laboratory for Special Functional Aggregate Materials of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, 27 Shanda Nanlu, Jinan, Shandong 250100, People's Republic of China, Fax: +86-531-88564464, http://www.sdu.edu.cn
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Abstract

Ceria nanoparticles with 4 and 7 atom-% manganese dopant were synthesized through a template-free solvothermal method. The structure of the samples was characterized by powder X-ray diffraction (XRD). Monodispersed nanospheres of average size 130 nm were observed in transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), and field-emission scanning electron microscopy (FE-SEM) analyses. Manganese ions were introduced into the system and it is confirmed that the Mn species dissolve within the CeO2 lattice by Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). Furthermore, the as-obtained Mn-doped ceria nanoparticles revealed superior catalytic performance in CO oxidation in contrast with pure CeO2 prepared by the same route.

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