Direct detection as a probe of platinum nanoparticles encapsulated in MFI zeolite nanocrystallite aggregates†

IF 3.2 3区 工程技术 Q2 CHEMISTRY, PHYSICAL Molecular Systems Design & Engineering Pub Date : 2024-05-03 DOI:10.1039/D3ME00200D
Yaning Liu, Mengxue Gao, Chunming Zhong, Yi Wu, Xiaoyuan Liao, Shuxiang Lv, Yan Jiang, Qiong Li and Yue Yao
{"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":" 7","pages":" 775-780"},"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}
引用次数: 0

Abstract

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.

Abstract Image

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
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
X 射线荧光光谱仪(XRF)与能量色散光谱仪(EDS)相结合,为封装在 MFI 沸石纳米晶聚集体中的铂纳米粒子(Pt-NPs)在异相催化过程中的分布模式提供了丰富的信息,从而为探究其局部结构提供了前景。本文通过水热法合成了一种新型微球单体,其中含有直径为 5-7 μm 的封装铂 ZSM-5 纳米晶聚集体,利用 XRF 和 EDS 检测深度的差异,可通过直接检测确认其中的铂含量。此外,这种封装结构还能限制金属铂颗粒的尺寸,提高金属的分散程度,并能长期获得较高的丙烷转化率(45%)和丙烯选择性(63%)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Molecular Systems Design & Engineering
Molecular Systems Design & Engineering Engineering-Biomedical Engineering
CiteScore
6.40
自引率
2.80%
发文量
144
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.
期刊最新文献
Back cover Back cover Dual responsive fluorescence switching of organohydrogel towards base/acid† Back cover Graph-based networks for accurate prediction of ground and excited state molecular properties from minimal features†
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1