The fabrication of hollow ZrO2 nanoreactors encapsulating Au-Fe2O3 dumbbell nanoparticles for CO oxidation dagger
文献类型：期刊论文
| 作者 | Yang, Fan; Wu, Chunzheng; Yu, Hongbo; Wang, Shiwei; Li, Tong; Yan, Bo; Yin, Hongfeng |
| 刊名 | NANOSCALE
 |
| 出版日期 | 2021 |
| 卷号 | 13期号:14页码:6856-6862 |
| 英文摘要 | Nanosized Au catalysts suffer from serious sintering problems during synthesis or catalytic reactions at high temperatures. In this work, we integrate dumbbell-shaped Au-Fe3O4 heterostructures into hollow ZrO2 nanocages to make Au-Fe2O3@ZrO2 yolk-shell nanoreactors with high activity as well as ultra-high sintering resistance for high-temperature CO oxidation. The synthesis starts with the fabrication of a (Au-Fe3O4)@SiO2@ZrO2 core-shell nanostructure with a Au-Fe3O4 dumbbell nanoparticle (DB) core and SiO2/ZrO2 double shells, followed by calcination and the selective removal of the inner SiO2 shell with alkaline solution to obtain Au-Fe2O3@ZrO2 nanoreactors. The retained ZrO2 hollow (outer) shells protect the Au NPs from aggregation at temperatures up to 900 degrees C and show excellent long-term stability. Compared to Au@ZrO2 yolk-shell nanoreactors, Au-Fe2O3@ZrO2 shows improved activity in CO oxidation due to the active Au-Fe2O3 interface. This strategy can be extended to other yolk-shell nanoreactors with various nanocomposites and for different catalytic reactions. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/22088]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Yu, HB 2.Yin, HF (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, 1219 Zhongguan West Rd, Ningbo 315201, Zhejiang, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Yang, Fan,Wu, Chunzheng,Yu, Hongbo,et al. The fabrication of hollow ZrO2 nanoreactors encapsulating Au-Fe2O3 dumbbell nanoparticles for CO oxidation dagger[J]. NANOSCALE,2021,13(14):6856-6862. |
| APA | Yang, Fan.,Wu, Chunzheng.,Yu, Hongbo.,Wang, Shiwei.,Li, Tong.,...&Yin, Hongfeng.(2021).The fabrication of hollow ZrO2 nanoreactors encapsulating Au-Fe2O3 dumbbell nanoparticles for CO oxidation dagger.NANOSCALE,13(14),6856-6862. |
| MLA | Yang, Fan,et al."The fabrication of hollow ZrO2 nanoreactors encapsulating Au-Fe2O3 dumbbell nanoparticles for CO oxidation dagger".NANOSCALE 13.14(2021):6856-6862. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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