Multiple Au cores in CeO2 hollow spheres for the superior catalytic reduction of p-nitrophenol

Zhao, Kun and Qi, Jian and Zhao, Shenlong and Tang, Hongjie and Yin, Huajie and Zong, Lingbo and Chang, Lin and Gao, Yan and Yu, Ranbo and Tang, Zhiyong (2015) Multiple Au cores in CeO2 hollow spheres for the superior catalytic reduction of p-nitrophenol. Cuihua Xuebao/Chinese Journal of Catalysis, 36 (3). pp. 261-267. ISSN 0253-9837


In many catalytic systems the structure of the catalyst plays a crucial role in the reaction especially for catalytic reduction, organic pollutant oxidation and other organic transformations. Herein, we report a template-free approach to the synthesis of multiple Au cores in CeO2 hollow spheres (MACCHS). This material was fabricated by impregnating CeO2 hollow spheres with a HAuCl4 aqueous solution. NaBH4 was then used to reduce HAuCl4 to Au nanoparticles to form multiple Au cores in the CeO2 hollow spheres. We used MACCHS as a catalyst for p-nitrophenol reduction and achieved excellent activity. The catalyst showed enhanced stability toward p-nitrophenol reduction compared with bare Au nanoparticles and CeO2 hollow spheres. This simple method to achieve multi-core-in-shell hollow structures will likely have applications in various biological, medical and energy related fields.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 16 Jun 2017 02:33
Last Modified: 06 Nov 2017 05:17
Uncontrolled Keywords: Catalytic reduction; CeO2 hollow sphere; Multiple Au core; p-Nitrophenol; Catalytic reduction; Catalytic system; Enhanced stability; Hollow sphere; Multiple Au core; Organic transformations; p-Nitrophenol; Pollutant oxidation; Environmental Engineering; Precious Metals; Fluid Flow; Electric and Magnetic Materials; Nanotechnology; Chemistry; Chemical Agents and Basic Industrial Chemicals;
Fields of Research (2008): 03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030399 Macromolecular and Materials Chemistry not elsewhere classified
Fields of Research (2020): 34 CHEMICAL SCIENCES > 3403 Macromolecular and materials chemistry > 340399 Macromolecular and materials chemistry not elsewhere classified
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences
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