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- Title
Uniformly dispersed Pd nanoparticles anchored Co(OH)<sub>2</sub>/Cu(OH)<sub>2</sub> hierarchical nanotube array as high active structured catalyst for Suzuki-Miyaura coupling reactions.
- Authors
Li, Jiali; Kong, Xianggui; Jiang, Meihong; Lei, Xiaodong
- Abstract
Up to now, although tremendous effort has been made in exploring Pd-based catalysts for the Suzuki-Miyaura coupling reactions, there is still much room to enhance its catalytic performance by synthesis catalyst with define-designed and tailored structure. Herein, a new kind of Pd-based structured catalyst with hierarchical hollow structure (Pd/Co(OH)2/Cu(OH)2/copper foam) has been successfully synthesized by three facile steps. As framework, the hierarchical hollow nanoarray structure of Co(OH)2/Cu(OH)2/copper foam is fabricated by immersion and electrolytic deposition methods. Uniformly dispersed Pd nanoparticles with a narrow size distribution (1.5 ± 0.2 nm) are anchored on the surface of the hierarchical nanotube array through an in situ spontaneous redox reaction between Co(OH)2 and PdCl42− without any surfactant at room temperature. Compared with other synthesis approaches, it just takes less than 1 h for the whole fabrication process in our strategy, exhibiting very high efficiency. In order to evaluate the catalytic performance of the as-prepared structured catalyst, 16 kinds of reagents were chosen as substrates for Suzuki-Miyaura coupling reaction, exhibiting excellent activity and reusability under mild conditions. We hope this simple and efficient method will open a new strategy to design and prepare structured catalysts.
- Subjects
PALLADIUM catalysts; SUZUKI reaction; NANOPARTICLE synthesis; MICROARRAY technology; OXIDATION-reduction reaction; ELECTROCHEMICAL analysis
- Publication
Journal of Materials Science, 2018, Vol 53, Issue 24, p16263
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1007/s10853-018-2781-7