Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | eaax6976 |
| Fachzeitschrift | Science advances |
| Jahrgang | 5 |
| Ausgabenummer | 11 |
| Publikationsstatus | Veröffentlicht - 1 Nov. 2019 |
| Extern publiziert | Ja |
Abstract
The synthesis of support materials with suitable coordination sites and confined structures for the controlled growth of ultrasmall metal nanoparticles is of great importance in heterogeneous catalysis. Here, by rational design of a cross-linked β-cyclodextrin polymer network (CPN), various metal nanoparticles (palladium, silver, platinum, gold, and rhodium) of subnanometer size (<1 nm) and narrow size distribution are formed via a mild and facile procedure. The presence of the metal coordination sites and the network structure are key to the successful synthesis and stabilization of the ultrasmall metal nanoparticles. The as-prepared CPN, loaded with palladium nanoparticles, is used as a heterogeneous catalyst and shows outstanding catalytic performance in the hydrogenation of nitro compounds and Suzuki-Miyaura coupling reaction under mild conditions. The CPN support works synergistically with the metal nanoparticles, achieving high catalytic activity and selectivity. In addition, the catalytic activity of the formed catalyst is controllable.
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in: Science advances, Jahrgang 5, Nr. 11, eaax6976, 01.11.2019.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Cyclodextrin polymer networks decorated with subnanometer metal nanoparticles for high-performance low-temperature catalysis
AU - Huang, Tiefan
AU - Sheng, Guan
AU - Manchanda, Priyanka
AU - Emwas, Abdul H.
AU - Lai, Zhiping
AU - Nunes, Suzana Pereira
AU - Peinemann, Klaus Viktor
N1 - Funding Information: We acknowledge financial support (grant BAS/1/1332-01-01 and grant REP/1/3848-01-01) from the King Abdullah University of Science and Technology.
PY - 2019/11/1
Y1 - 2019/11/1
N2 - The synthesis of support materials with suitable coordination sites and confined structures for the controlled growth of ultrasmall metal nanoparticles is of great importance in heterogeneous catalysis. Here, by rational design of a cross-linked β-cyclodextrin polymer network (CPN), various metal nanoparticles (palladium, silver, platinum, gold, and rhodium) of subnanometer size (<1 nm) and narrow size distribution are formed via a mild and facile procedure. The presence of the metal coordination sites and the network structure are key to the successful synthesis and stabilization of the ultrasmall metal nanoparticles. The as-prepared CPN, loaded with palladium nanoparticles, is used as a heterogeneous catalyst and shows outstanding catalytic performance in the hydrogenation of nitro compounds and Suzuki-Miyaura coupling reaction under mild conditions. The CPN support works synergistically with the metal nanoparticles, achieving high catalytic activity and selectivity. In addition, the catalytic activity of the formed catalyst is controllable.
AB - The synthesis of support materials with suitable coordination sites and confined structures for the controlled growth of ultrasmall metal nanoparticles is of great importance in heterogeneous catalysis. Here, by rational design of a cross-linked β-cyclodextrin polymer network (CPN), various metal nanoparticles (palladium, silver, platinum, gold, and rhodium) of subnanometer size (<1 nm) and narrow size distribution are formed via a mild and facile procedure. The presence of the metal coordination sites and the network structure are key to the successful synthesis and stabilization of the ultrasmall metal nanoparticles. The as-prepared CPN, loaded with palladium nanoparticles, is used as a heterogeneous catalyst and shows outstanding catalytic performance in the hydrogenation of nitro compounds and Suzuki-Miyaura coupling reaction under mild conditions. The CPN support works synergistically with the metal nanoparticles, achieving high catalytic activity and selectivity. In addition, the catalytic activity of the formed catalyst is controllable.
UR - http://www.scopus.com/inward/record.url?scp=85074655840&partnerID=8YFLogxK
U2 - 10.1126/sciadv.aax6976
DO - 10.1126/sciadv.aax6976
M3 - Article
C2 - 31701005
AN - SCOPUS:85074655840
VL - 5
JO - Science advances
JF - Science advances
SN - 2375-2548
IS - 11
M1 - eaax6976
ER -