Szczegóły publikacji
Opis bibliograficzny
Continuous flow-mode synthesis of aromatic amines in a 3D-printed fixed bed reactor loaded with amino sugar-stabilized Re apparent nanoparticles / Patrick Niyirora, Joanna Wolska, Mateusz M. MARZEC, Krystian SOKOŁOWSKI, Anna Leśniewicz, Piotr Jamróz, Anna Dzimitrowicz, Andrzej BERNASIK, Piotr Cyganowski // Molecules [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 1420-3049. — 2025 — vol. 30 iss. 18 art. no. 3782, s. 1–18. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 16–18, Abstr. — Publikacja dostępna online od: 2025-09-17. — A. Bernasik - dod. afiliacja: ACMiN
Autorzy (9)
- Niyirora Patrick
- Wolska Joanna
- AGHMarzec Mateusz M.
- AGHSokołowski Krystian
- Leśniewicz Anna
- Jamróz Piotr
- Dzimitrowicz Anna
- AGHBernasik Andrzej
- Cyganowski Piotr
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 162687 |
|---|---|
| Data dodania do BaDAP | 2025-09-20 |
| Tekst źródłowy | URL |
| DOI | 10.3390/molecules30183782 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Molecules |
Abstract
In industrial processes, catalysts—materials that speed up chemical reactions without being consumed—are essential. The goal of this research was to create two new rhenium-based nanocomposite catalysts that can effectively and sustainably reduce nitroaromatic compounds to aromatic amines in continuous-flow systems. Nitroaromatic hydrocarbons (NACs), widely used in manufacturing pharmaceuticals, insecticides, and herbicides, often contaminate soil and water, posing significant environmental and health risks. However, their reduction to aromatic amines enables potential industrial reuse. In this study, we synthesized two nanocomposite catalysts based on a copolymer functionalized with N-methyl-D-glucamine, embedded with rhenium (Re)-based apparent nanoparticles, and used them to reduce the NACs in continuous-flow mode to their aromatic amines using newly designed and stereolithographic (SLA) 3D-printed reactors. Advanced characterization techniques were employed to evaluate their structure, morphology, and catalytical performance. Catalyst 1, prepared from a self-modified Purolite D4869 resin and characterized by higher Re loading, exhibited superior conversion rates in batch mode (k1 up to 1.406 s−1). In contrast, Catalyst 2, based on a commercial NMDG-functionalized Dowex resin with a mesoporous structure, demonstrated remarkable stability and catalytic capacity under continuous flow (up to 1.383 mmolNAC mLcat−1). Overall, Catalyst 1 was found to be better suited for rapid batch reactions, whereas Catalyst 2 was found to be more appropriate for long-term flow applications, offering a sustainable route for the efficient conversion of nitroaromatic compounds into valuable aromatic amines. The reactors enabled the efficient conversion of NACs into aromatic amines while enhancing process sustainability and efficiency.