Palladium nanoparticles immobilized on halloysite nanotubes covered by a multilayer network for catalytic applications
| العنوان: | Palladium nanoparticles immobilized on halloysite nanotubes covered by a multilayer network for catalytic applications |
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| المؤلفون: | Filippo Parisi, Leonarda F. Liotta, Susanna Guernelli, Gabriella Buscemi, Marina Massaro, Giuseppe Lazzara, Carmelo Giuseppe Colletti, Salvatore Cataldo, Alberto Pettignano, Serena Riela |
| المساهمون: | Marina Massaro, Carmelo G. Colletti, Gabriella Buscemi, Salvatore Cataldo, Susanna Guernelli, Giuseppe Lazzara, Leonarda F. Liotta, Filippo Parisi, Alberto Pettignano, Serena Riela |
| المصدر: | New journal of chemistry (1987) 42 (2018): 13938–13947. doi:10.1039/c8nj02932f info:cnr-pdr/source/autori:Massaro, Marina; Colletti, Carmelo G.; Buscemi, Gabriella; Cataldo, Salvatore; Guernelli, Susanna; Lazzara, Giuseppe; Liotta, Leonarda F.; Parisi, Filippo; Pettignano, Alberto; Riela, Serena/titolo:Palladium nanoparticles immobilized on halloysite nanotubes covered by a multilayer network for catalytic applications/doi:10.1039%2Fc8nj02932f/rivista:New journal of chemistry (1987)/anno:2018/pagina_da:13938/pagina_a:13947/intervallo_pagine:13938–13947/volume:42 |
| بيانات النشر: | Royal Society of Chemistry (RSC), 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Palladium nanoparticles immobilized on halloysite nanotubes, 02 engineering and technology, engineering.material, 010402 general chemistry, 01 natural sciences, Halloysite, Catalysis, Coupling reaction, Suzuki reaction, Materials Chemistry, Settore CHIM/02 - Chimica Fisica, Chemistry, Palladium nanoparticles, Settore CHIM/06 - Chimica Organica, General Chemistry, Palladium nanoparticles, halloysite nanotubes, catalyst, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Turnover number, Chemical engineering, Microwave irradiation, engineering, 0210 nano-technology, Hybrid material, Halloysite nanotubes, cross-coupling reactions |
| الوصف: | The synthesis of pure fine chemicals for industrial purposes is one of the most attractive challenges of chemical research. The use of catalytic pathways mediated by palladium nanoparticles (PdNPs) for C-C bond formation is a useful way to obtain these kinds of compounds. To achieve this objective, the PdNPs can be efficiently loaded on a functionalized natural nanostructured support such as halloysite nanotubes (HNTs). Hybrid materials based on thiol functionalized halloysite nanotubes and highly cross-linked imidazolium salts were successfully developed and used for the stabilization of PdNPs. The HNT/Pd hybrids were thoroughly characterized from a physico-chemical point of view and tested as a catalyst in the Suzuki and Heck C-C coupling reactions under microwave irradiation to obtain innovative materials for fine chemicals synthesis. Catalytic tests highlighted the fact that the HNT/Pd hybrids show high performance and full recyclability (up to ten cycles) in both reactions. Regarding the Suzuki reaction, under the best experimental conditions, the remarkable values of a turnover number of 194 000 and a turnover frequency of 3 880 000 h-1 were achieved without metal contamination in the final products. © The Royal Society of Chemistry and the Centre National de la Recherche Scientifique. The synthesis of pure fine chemicals for industrial purposes is one of the most attractive challenges of chemical research. The use of catalytic pathways mediated by palladium nanoparticles (PdNPs) for C–C bond formation is a useful way to obtain these kinds of compounds. To achieve this objective, the PdNPs can be efficiently loaded on a functionalized natural nanostructured support such as halloysite nanotubes (HNTs). Hybrid materials based on thiol functionalized halloysite nanotubes and highly crosslinked imidazolium salts were successfully developed and used for the stabilization of PdNPs. The HNT/Pd hybrids were thoroughly characterized from a physico-chemical point of view and tested as a catalyst in the Suzuki and Heck C–C coupling reactions under microwave irradiation to obtain innovative materials for fine chemicals synthesis. Catalytic tests highlighted the fact that the HNT/Pd hybrids show high performance and full recyclability (up to ten cycles) in both reactions. Regarding the Suzuki reaction, under the best experimental conditions, the remarkable values of a turnover number of 194 000 and a turnover frequency of 3 880 000 h1 were achieved without metal contamination in the final products. |
| وصف الملف: | STAMPA |
| تدمد: | 1369-9261 1144-0546 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a689afe711f3698eead06b11e06ba43Test https://doi.org/10.1039/c8nj02932fTest |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....1a689afe711f3698eead06b11e06ba43 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13699261 11440546 |
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