{"title":"Keggin Trimetallo-POM@MIL-101(Cr)，合成、表征及催化应用","authors":"Negin Teymouri, Roushan Khoshnavazi, Somayeh Molaei, Nahid Ghadermazi","doi":"10.1007/s10562-024-04885-7","DOIUrl":null,"url":null,"abstract":"<div><p>The Keggin trimetallic polyoxometalates of [A-β-SiW<sub>9</sub>Fe<sub>3</sub>O<sub>37</sub>]<sup>7−</sup> and [A-β-SiW<sub>9</sub>Co<sub>3</sub>O<sub>37</sub>]<sup>10−</sup> were immobilized into the porous metal–organic framework MIL-101(Cr). The structures and properties were characterized with high-resolution transmission electron microscopies (HRTEM), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectrometer (EDS), Fourier transform infrared spectroscopy (FTIR), powder X-ray diffraction (XRD)<i>,</i> nitrogen adsorption–desorption isotherm and zeta potential analysis. In this approach, the SiW<sub>9</sub>Fe<sub>3</sub>O<sub>37</sub>@MIL-101 and SiW<sub>9</sub>Co<sub>3</sub>O<sub>37</sub>@MIL-101 composites were synthesized with spherical particles consisting of high surface area (the BET surface area 1368.1 and 1275.8 m<sup>2</sup>/g respectively) and uniform pore size (2.10 and 2.13 nm respectively). The SiW<sub>9</sub>Fe<sub>3</sub>O<sub>37</sub>@MIL-101 and SiW<sub>9</sub>Co<sub>3</sub>O<sub>37</sub>@MIL-101 catalysts demonstrated exceptional performance in synthesizing 5-substituted 1<i>H</i> tetrazoles and oxidation sulfide to sulfones. Incorporating SiW<sub>9</sub>Fe<sub>3</sub>O<sub>37</sub> and SiW<sub>9</sub>Co<sub>3</sub>O<sub>37</sub> polyoxometalates into the MIL-101 matrix provided a high surface area and this unique structure allowed enhanced accessibility of reactants to the catalytic sites.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 2","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Keggin Trimetallo-POM@MIL-101(Cr), Synthesis, Characterization and Catalytic Applications\",\"authors\":\"Negin Teymouri, Roushan Khoshnavazi, Somayeh Molaei, Nahid Ghadermazi\",\"doi\":\"10.1007/s10562-024-04885-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The Keggin trimetallic polyoxometalates of [A-β-SiW<sub>9</sub>Fe<sub>3</sub>O<sub>37</sub>]<sup>7−</sup> and [A-β-SiW<sub>9</sub>Co<sub>3</sub>O<sub>37</sub>]<sup>10−</sup> were immobilized into the porous metal–organic framework MIL-101(Cr). The structures and properties were characterized with high-resolution transmission electron microscopies (HRTEM), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectrometer (EDS), Fourier transform infrared spectroscopy (FTIR), powder X-ray diffraction (XRD)<i>,</i> nitrogen adsorption–desorption isotherm and zeta potential analysis. In this approach, the SiW<sub>9</sub>Fe<sub>3</sub>O<sub>37</sub>@MIL-101 and SiW<sub>9</sub>Co<sub>3</sub>O<sub>37</sub>@MIL-101 composites were synthesized with spherical particles consisting of high surface area (the BET surface area 1368.1 and 1275.8 m<sup>2</sup>/g respectively) and uniform pore size (2.10 and 2.13 nm respectively). The SiW<sub>9</sub>Fe<sub>3</sub>O<sub>37</sub>@MIL-101 and SiW<sub>9</sub>Co<sub>3</sub>O<sub>37</sub>@MIL-101 catalysts demonstrated exceptional performance in synthesizing 5-substituted 1<i>H</i> tetrazoles and oxidation sulfide to sulfones. Incorporating SiW<sub>9</sub>Fe<sub>3</sub>O<sub>37</sub> and SiW<sub>9</sub>Co<sub>3</sub>O<sub>37</sub> polyoxometalates into the MIL-101 matrix provided a high surface area and this unique structure allowed enhanced accessibility of reactants to the catalytic sites.</p><h3>Graphical Abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":508,\"journal\":{\"name\":\"Catalysis Letters\",\"volume\":\"155 2\",\"pages\":\"\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2025-01-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Catalysis Letters\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10562-024-04885-7\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis Letters","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10562-024-04885-7","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Keggin Trimetallo-POM@MIL-101(Cr), Synthesis, Characterization and Catalytic Applications
The Keggin trimetallic polyoxometalates of [A-β-SiW9Fe3O37]7− and [A-β-SiW9Co3O37]10− were immobilized into the porous metal–organic framework MIL-101(Cr). The structures and properties were characterized with high-resolution transmission electron microscopies (HRTEM), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectrometer (EDS), Fourier transform infrared spectroscopy (FTIR), powder X-ray diffraction (XRD), nitrogen adsorption–desorption isotherm and zeta potential analysis. In this approach, the SiW9Fe3O37@MIL-101 and SiW9Co3O37@MIL-101 composites were synthesized with spherical particles consisting of high surface area (the BET surface area 1368.1 and 1275.8 m2/g respectively) and uniform pore size (2.10 and 2.13 nm respectively). The SiW9Fe3O37@MIL-101 and SiW9Co3O37@MIL-101 catalysts demonstrated exceptional performance in synthesizing 5-substituted 1H tetrazoles and oxidation sulfide to sulfones. Incorporating SiW9Fe3O37 and SiW9Co3O37 polyoxometalates into the MIL-101 matrix provided a high surface area and this unique structure allowed enhanced accessibility of reactants to the catalytic sites.
期刊介绍：
Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis.
The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.
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