Fabrication of strawberry-like Au@CeO<sub>2</sub> nanoparticles with enhanced catalytic activity by assembly of block copolymer composite micelles

Yapei Jiao; Na Li; Huan Yu; Wenting Li; Jiaxu Zhao; Xue Li; Xiaokai Zhang

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Fabrication of strawberry-like Au@CeO₂ nanoparticles with enhanced catalytic activity by assembly of block copolymer composite micelles

机译：通过组装嵌段共聚物复合胶束制备具有增强催化活性的草莓样Au @ CeO _{2 纳米颗粒}

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In this study, novel strawberry-like Au@CeO₂ nanoparticles (NPs) were fabricated by assembly of block copolymer composite micelles via a redox reaction between Au(III) and Ce(III) followed by precipitation and calcination. These strawberry-like nanostructures were characterized by transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, thermal gravimetric analysis, UV-vis spectroscopy, thermogravimetric analysis and N₂ adsorption–desorption techniques. These strawberry-like Au@CeO₂ NPs were found to be composed of porous CeO₂ and several Au NPs set in the surfaces of the porous CeO₂ spheres. The catalytic degradation of methyl orange dye (MO) under ultrasonic irradiation was investigated. It was found that the activity of the strawberry-like Au@CeO₂ NPs was substantially higher than that of their porous counterparts. The new strawberry-like nanostructures may have potential applications in catalysis and adsorption.

机译：在这项研究中，通过氧化还原反应组装嵌段共聚物复合胶束，制备了新颖的草莓状Au @ CeO _{2 纳米颗粒（NPs）。在Au（ III ）和Ce（ III ）之间进行沉淀和煅烧。通过透射电子显微镜，X射线衍射，X射线光电子能谱，热重分析，紫外可见光谱，热重分析和N _{2 吸附解吸技术。发现这些类似草莓的Au @ CeO _{2 NPs由多孔的CeO _{2 和几个Au NPs组成在多孔CeO _{2 球的表面中设置。研究了超声辐照下甲基橙染料（MO）的催化降解。发现草莓样Au @ CeO _{2 NPs的活性明显高于其多孔对应物。新的草莓状纳米结构可能在催化和吸附方面具有潜在的应用。}}}}}} 展开▼

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《RSC Advances》 |2017年第2期|共7页

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Yapei Jiao; Na Li; Huan Yu; Wenting Li; Jiaxu Zhao; Xue Li; Xiaokai Zhang;
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中图分类化学;

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1. Fabrication of strawberry-like Au@CeO₂ nanoparticles with enhanced catalytic activity by assembly of block copolymer composite micelles [J] . Yapei Jiao, Na Li, Huan Yu, RSC Advances . 2017,第2期

机译：通过组装嵌段共聚物复合胶束制备具有增强催化活性的草莓样Au @ CeO _{2 纳米颗粒}

2. Non-Aqueous Synthesis of CeO2 Nanoparticles Using Block Copolymer Micelles as Templates and Their Assembly Into Porous Structures with Enhanced Catalytic Activity [J] . Liu Jinhao, Li Na, Li Wenting, Science of advanced materials . 2016,第5期

机译：以嵌段共聚物胶束为模板的非水合成CeO2纳米颗粒及其组装成具有增强催化活性的多孔结构

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机译：AuCl_4-离子液体嵌段共聚物的响应性自组装，用于制备形态可控的复合金纳米颗粒和聚合物胶束

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机译：阴离子天然纤维素纳米纤维和阳离子嵌段共聚物胶束之间的胶体余量自组装成仿生纳米复合材料

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机译：嵌段共聚物在溶液螺旋圆柱状胶束和片状纳米颗粒中的动力学组装。

6. Self-Assembly of Block Copolymer Chains To Promotethe Dispersion of Nanoparticles in Polymer Nanocomposites [O] . Jun Liu, Zixuan Wang, Zhiyu Zhang, -1

机译：嵌段共聚物链的自组装促进纳米粒子在聚合物纳米复合材料中的分散

7. Fabrication of strawberry-like Au@CeO2 nanoparticles with enhanced catalytic activity by assembly of block copolymer composite micelles [O] . Yapei Jiao, Na Li, Huan Yu, 2017

机译：通过组装嵌段共聚物复合胶束组装具有增强催化活性的草莓样Au @ CeO2纳米颗粒

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机译：生物相容性嵌段共聚物，胶束，微粒，复合材料，药物组合物，胶束，微粒或复合材料的制备方法以及生物相容性嵌段共聚物的用途

4. pH SENSOR USING DIBLOCK COPOLYMER MICELLES, FLUORESCENCE SENSOR USING DIBLOCK COPOLYMER MICELLES, AND MANUFACTURING METHOD THEREOF [P] . 外国专利： KR20160136519A . 2016-11-30

机译：使用双嵌段共聚物胶束的pH传感器，使用双嵌段共聚物胶束的荧光传感器及其制造方法

5. Block copolymer comprising catechol segment and inorganic nanoparticles coated by said block copolymer, as well as method for producing block copolymer comprising catechol segment and method for producing inorganic nanoparticles coated by said block copolymer [P] . 外国专利： US11015010B2 . 2021-05-25

机译：嵌段共聚物，包括由所述嵌段共聚物涂覆的儿茶酚链段和无机纳米颗粒，以及制备包含儿茶酚区段的嵌段共聚物的方法及其制备由所述嵌段共聚物涂覆的无机纳米颗粒的方法

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Fabrication of strawberry-like Au@CeO2 nanoparticles with enhanced catalytic activity by assembly of block copolymer composite micelles

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Fabrication of strawberry-like Au@CeO₂ nanoparticles with enhanced catalytic activity by assembly of block copolymer composite micelles