A novel cerium-based metal–organic framework supported Pd catalyst for semi-hydrogenation of phenylacetylene
Phenylacetylene is a detrimental impurity in the polymerisation of styrene, capable of poisoning catalysts even at ppm levels and significantly degrading the quality of polystyrene. The semi-hydrogenation of phenylacetylene to styrene instead of ethylbenzene is, therefore, an important industrial process. We report a novel cerium(iv)-based metal-organic framework (denoted as Ce-bptc), which comprises {Ce<sub>6</sub>} clusters bridged by biphenyl-3,3',5,5'-tetracarboxylate linkers. Ce-bptc serves as an ideal support for palladium nanoparticles and the Pd@Ce-bptc catalyst demonstrates excellent catalytic performance for semi-hydrogenation of phenylacetylene, achieving a selectivity of 93% towards styrene on full conversion under ambient conditions with excellent reusability. <i>In situ</i> synchrotron X-ray powder diffraction and electron paramagnetic resonance spectroscopy reveal the binding domains of phenylacetylene within Ce-bptc, and details of the reaction mechanism are discussed.
Authors
- Wanpeng Lu (ORCID: https://orcid.org/0000-0003-3403-667X)
- Sarah J. Day (ORCID: https://orcid.org/0000-0003-1059-8475)
- Bing An (ORCID: https://orcid.org/0000-0002-1085-0602)
- Jiangnan Li (ORCID: https://orcid.org/0000-0003-1306-3062)
- Xiangdi Zeng (ORCID: https://orcid.org/0000-0002-4956-3336)
- Sihai Yang⧫ (ORCID: https://orcid.org/0000-0002-1111-9272)
- Floriana Tuna (ORCID: https://orcid.org/0000-0002-5541-1750)
- Meng He (ORCID: https://orcid.org/0000-0001-7373-9779)
- Eric J. L. McInnes (ORCID: https://orcid.org/0000-0002-4090-7040)
- Martin Schröder (ORCID: https://orcid.org/0000-0001-6992-0700)
- Ben F. Spencer (ORCID: https://orcid.org/0000-0002-1453-5327)
- Wenyuan Huang (ORCID: https://orcid.org/0000-0003-3815-9263)
- Zi Wang (ORCID: https://orcid.org/0009-0006-2717-5750)
- Mufan Li
Institutions
- Peking University (CN)
- Diamond Light Source (GB)
- University of Manchester (GB)
- Beijing National Laboratory for Molecular Sciences (CN)
Publication Details
- Journal
- Inorganic Chemistry Frontiers
- Published
- 2024-10-31
- DOI
- https://doi.org/10.1039/d4qi02225d
- Citations
- 4
- Primary Topic
- Metal-Organic Frameworks: Synthesis and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.63
Funders
- National Science Foundation
- Diamond Light Source
- University of Manchester
- European Commission
- National Natural Science Foundation of China
- Engineering and Physical Sciences Research Council
- Beijing National Laboratory for Molecular Sciences
- H2020 European Research Council