Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst
A heterogeneous Janus-type palladium interphase catalyst was obtained by selective surface modification of a hollow mesoporous silica material. The catalyst comprises hydrophobic octyl groups on one side of the silica nanosheets and single-site bis-imidazoline dichlorido palladium(II) complexes on t...
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| Format: | Article |
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MDPI AG
2021-10-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/26/21/6450 |
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| author | Majid Vafaeezadeh Ranja Saynisch Andrea Lösch Wolfgang Kleist Werner R. Thiel |
| author_facet | Majid Vafaeezadeh Ranja Saynisch Andrea Lösch Wolfgang Kleist Werner R. Thiel |
| author_sort | Majid Vafaeezadeh |
| collection | DOAJ |
| description | A heterogeneous Janus-type palladium interphase catalyst was obtained by selective surface modification of a hollow mesoporous silica material. The catalyst comprises hydrophobic octyl groups on one side of the silica nanosheets and single-site bis-imidazoline dichlorido palladium(II) complexes on the other. The structure of this composite material has been analyzed by means of elemental analysis, atomic absorption spectroscopy, BET surface analysis, TGA, SEM and solid-state CP-MAS <sup>13</sup>C and <sup>29</sup>Si NMR spectroscopy. The catalyst showed extraordinary activity for the aqueous-phase oxidation of styrene to acetophenone using 30% hydrogen peroxide as the oxidant. An 88% yield of acetophenone could be achieved after 60 min. |
| first_indexed | 2024-03-10T05:56:16Z |
| format | Article |
| id | doaj.art-dc77a2f779d04d0bb0696dff032ae268 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T05:56:16Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-dc77a2f779d04d0bb0696dff032ae2682023-11-22T21:21:30ZengMDPI AGMolecules1420-30492021-10-012621645010.3390/molecules26216450Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium CatalystMajid Vafaeezadeh0Ranja Saynisch1Andrea Lösch2Wolfgang Kleist3Werner R. Thiel4Fachbereich Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Str. 54, D-67663 Kaiserslautern, GermanyFachbereich Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Str. 54, D-67663 Kaiserslautern, GermanyFachbereich Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Str. 54, D-67663 Kaiserslautern, GermanyFachbereich Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Str. 54, D-67663 Kaiserslautern, GermanyFachbereich Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Str. 54, D-67663 Kaiserslautern, GermanyA heterogeneous Janus-type palladium interphase catalyst was obtained by selective surface modification of a hollow mesoporous silica material. The catalyst comprises hydrophobic octyl groups on one side of the silica nanosheets and single-site bis-imidazoline dichlorido palladium(II) complexes on the other. The structure of this composite material has been analyzed by means of elemental analysis, atomic absorption spectroscopy, BET surface analysis, TGA, SEM and solid-state CP-MAS <sup>13</sup>C and <sup>29</sup>Si NMR spectroscopy. The catalyst showed extraordinary activity for the aqueous-phase oxidation of styrene to acetophenone using 30% hydrogen peroxide as the oxidant. An 88% yield of acetophenone could be achieved after 60 min.https://www.mdpi.com/1420-3049/26/21/6450mesoporous Janus-type catalystmodified mesoporous silicaaqueous-phase oxidationpalladium catalysthydrogen peroxide |
| spellingShingle | Majid Vafaeezadeh Ranja Saynisch Andrea Lösch Wolfgang Kleist Werner R. Thiel Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst Molecules mesoporous Janus-type catalyst modified mesoporous silica aqueous-phase oxidation palladium catalyst hydrogen peroxide |
| title | Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst |
| title_full | Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst |
| title_fullStr | Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst |
| title_full_unstemmed | Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst |
| title_short | Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst |
| title_sort | fast and selective aqueous phase oxidation of styrene to acetophenone using a mesoporous janus type palladium catalyst |
| topic | mesoporous Janus-type catalyst modified mesoporous silica aqueous-phase oxidation palladium catalyst hydrogen peroxide |
| url | https://www.mdpi.com/1420-3049/26/21/6450 |
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