| Facile Synthesis of Highly Dispersed and Well-Alloyed Bimetallic Nanoparticles on Oxide Support | |
| Qiu, Yu-Ping1; Shi, Qing1; Wang, Wei-Zhen2; Xia, Su-Hong2; Dai, Hao1; Yin, Hui1; Yang, Zhi-Qing3; Wang, Ping1 | |
| 通讯作者 | Yang, Zhi-Qing(yangzhq@jihualab.ac.cn) ; Wang, Ping(mspwang@scut.edu.cn) |
| 2022-02-23 | |
| 发表期刊 | SMALL
 |
| ISSN | 1613-6810 |
| 页码 | 8 |
| 摘要 | Supported alloy catalysts play a pivotal role in many heterogeneous catalytic processes of socioeconomic and environmental importance. But the controlled synthesis of supported alloy nanoparticles with consistent composition and tight size distribution remains a challenging issue. Herein, a simple yet effective method for preparation of highly dispersed, homogeneously alloyed bimetallic nanoparticles on oxide supports is reported. This method is based on solid solution of metal cations in parent oxide and strong electrostatic adsorption of a secondary metal species onto the oxide surface. In the reductive annealing process, hydrogen spillover occurs from the surface metal with a higher reduction potential to the solute metal in solid solution, leading to metal exsolution and homogenous alloying of the metals on the oxide surface. The ceria-supported Ni-Pt alloy is chosen as a model catalyst and hydrazine monohydrate decomposition is chosen as a probe reaction to demonstrate this method, and particularly its advantages over the conventional impregnation and galvanic replacement methods. A systematic application of this method using different oxides and base-noble metal pairs further elucidates its applicability and generality. |
| 关键词 | alloying bimetallic nanoparticles solid solutions strong electrostatic adsorption supported alloy catalysts |
| 资助者 | National Key R&D Program of China ; NSFC |
| DOI | 10.1002/smll.202106143 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Key R&D Program of China[2018YFB1502104] ; NSFC[51621001] ; NSFC[52171208] ; NSFC[X210141TL210] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS类目 | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| WOS记录号 | WOS:000759535700001 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/173327 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Yang, Zhi-Qing; Wang, Ping |
| 作者单位 | 1.South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Ji Hua Lab, Foshan 528000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiu, Yu-Ping,Shi, Qing,Wang, Wei-Zhen,et al. Facile Synthesis of Highly Dispersed and Well-Alloyed Bimetallic Nanoparticles on Oxide Support[J]. SMALL,2022:8. |
| APA | Qiu, Yu-Ping.,Shi, Qing.,Wang, Wei-Zhen.,Xia, Su-Hong.,Dai, Hao.,...&Wang, Ping.(2022).Facile Synthesis of Highly Dispersed and Well-Alloyed Bimetallic Nanoparticles on Oxide Support.SMALL,8. |
| MLA | Qiu, Yu-Ping,et al."Facile Synthesis of Highly Dispersed and Well-Alloyed Bimetallic Nanoparticles on Oxide Support".SMALL (2022):8. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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