Benefits of the SiO2-supported nickel phosphide catalyst on ethylene oligomerization
- Title
- Benefits of the SiO2-supported nickel phosphide catalyst on ethylene oligomerization
- Author
- 서영웅
- Keywords
- Ethylene oligomerization; Nickel phosphide; Bronsted acid sites; Supports
- Issue Date
- 2020-02
- Publisher
- ELSEVIER
- Citation
- APPLIED CATALYSIS A-GENERAL, v. 591, article no. 117376
- Abstract
- Although homogeneous catalytic systems have been central in ethylene oligomerization, the SiO2-Al2O3-supported nickel phosphide (Ni2P) catalyst was recently examined to be capable of transforming ethylene into higher olefins. Herein, better catalytic performance in ethylene oligomerization is achieved with Ni2P/SiO2 than Ni2P/SiO2-Al2O3 and Ni2P/Al2O3. As a factor influencing ethylene oligomerization, the particle size of Ni2P is the smallest over Ni2P/SiO2 due to strong metal-support interaction. While the oligomer productivity is affected by the density of Bronsted acid site present in the supported Ni2P catalysts, Ni2P/SiO2 has a relatively high ratio of Bronsted to Lewis acid sites. Moreover, Ni2P/SiO2 is able to easily generate and transfer hydrogen species via the Bronsted acid P OH groups, which would affect formation of nickel hydride species that is important in oligomerizing ethylene. Therefore, the above features of Ni2P/SiO2 are beneficial for ethylene oligomerization into higher olefins.
- URI
- https://www.sciencedirect.com/science/article/pii/S0926860X19305319?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/161154
- ISSN
- 0926-860X; 1873-3875
- DOI
- 10.1016/j.apcata.2019.117376
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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