Yaning Liu, Mengxue Gao, Chunming Zhong, Yi Wu, Xiaoyuan Liao, Shuxiang Lv, Yan Jiang, Qiong Li and Yue Yao
{"title":"作为探针直接检测封装在 MFI 沸石纳米晶聚集体中的铂纳米粒子","authors":"Yaning Liu, Mengxue Gao, Chunming Zhong, Yi Wu, Xiaoyuan Liao, Shuxiang Lv, Yan Jiang, Qiong Li and Yue Yao","doi":"10.1039/D3ME00200D","DOIUrl":null,"url":null,"abstract":"<p >An X-ray fluorescence spectrometer (XRF) combined with an energy dispersive spectrometer (EDS) offers a wealth of information about the mode of distribution in heterogeneous catalysis for platinum nanoparticles (Pt-NPs) encapsulated in MFI zeolite nanocrystallite aggregates, thus providing a promising probe of their local structure. In this paper, we hydrothermally synthesized a novel microsphere monomer containing encapsulated Pt ZSM-5 nanocrystalline aggregates with a diameter of 5–7 μm, in which the Pt content can be confirmed by direct detection with the difference in detection depths of XRF and EDS. Moreover, the package structure can limit the size of the metal Pt particles, improve the degree of metal dispersion, and obtain high propane conversion (45%) and propylene selectivity (63%) over the long term.</p>","PeriodicalId":91,"journal":{"name":"Molecular Systems Design & Engineering","volume":null,"pages":null},"PeriodicalIF":3.2000,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Direct detection as a probe of platinum nanoparticles encapsulated in MFI zeolite nanocrystallite aggregates†\",\"authors\":\"Yaning Liu, Mengxue Gao, Chunming Zhong, Yi Wu, Xiaoyuan Liao, Shuxiang Lv, Yan Jiang, Qiong Li and Yue Yao\",\"doi\":\"10.1039/D3ME00200D\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >An X-ray fluorescence spectrometer (XRF) combined with an energy dispersive spectrometer (EDS) offers a wealth of information about the mode of distribution in heterogeneous catalysis for platinum nanoparticles (Pt-NPs) encapsulated in MFI zeolite nanocrystallite aggregates, thus providing a promising probe of their local structure. In this paper, we hydrothermally synthesized a novel microsphere monomer containing encapsulated Pt ZSM-5 nanocrystalline aggregates with a diameter of 5–7 μm, in which the Pt content can be confirmed by direct detection with the difference in detection depths of XRF and EDS. Moreover, the package structure can limit the size of the metal Pt particles, improve the degree of metal dispersion, and obtain high propane conversion (45%) and propylene selectivity (63%) over the long term.</p>\",\"PeriodicalId\":91,\"journal\":{\"name\":\"Molecular Systems Design & Engineering\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2024-05-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Molecular Systems Design & Engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2024/me/d3me00200d\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Molecular Systems Design & Engineering","FirstCategoryId":"5","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/me/d3me00200d","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Direct detection as a probe of platinum nanoparticles encapsulated in MFI zeolite nanocrystallite aggregates†
An X-ray fluorescence spectrometer (XRF) combined with an energy dispersive spectrometer (EDS) offers a wealth of information about the mode of distribution in heterogeneous catalysis for platinum nanoparticles (Pt-NPs) encapsulated in MFI zeolite nanocrystallite aggregates, thus providing a promising probe of their local structure. In this paper, we hydrothermally synthesized a novel microsphere monomer containing encapsulated Pt ZSM-5 nanocrystalline aggregates with a diameter of 5–7 μm, in which the Pt content can be confirmed by direct detection with the difference in detection depths of XRF and EDS. Moreover, the package structure can limit the size of the metal Pt particles, improve the degree of metal dispersion, and obtain high propane conversion (45%) and propylene selectivity (63%) over the long term.
期刊介绍：
Molecular Systems Design & Engineering provides a hub for cutting-edge research into how understanding of molecular properties, behaviour and interactions can be used to design and assemble better materials, systems, and processes to achieve specific functions. These may have applications of technological significance and help address global challenges.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
