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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
Corresponding AuthorYang, Zhi-Qing(yangzhq@jihualab.ac.cn) ; Wang, Ping(mspwang@scut.edu.cn)
2022-02-23
Source PublicationSMALL
ISSN1613-6810
Pages8
AbstractSupported 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.
Keywordalloying bimetallic nanoparticles solid solutions strong electrostatic adsorption supported alloy catalysts
Funding OrganizationNational Key R&D Program of China ; NSFC
DOI10.1002/smll.202106143
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2018YFB1502104] ; NSFC[51621001] ; NSFC[52171208] ; NSFC[X210141TL210]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000759535700001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/173327
Collection中国科学院金属研究所
Corresponding AuthorYang, Zhi-Qing; Wang, Ping
Affiliation1.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
Recommended Citation
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.
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