Enhanced Activity and Stability of a Carbon-Coated Alumina-Supported Pd Catalyst in the Dehydrogenation of a Liquid Organic Hydrogen Carrier, Perhydro 2-(n-methylbenzyl)Pyridine
- Authors
- Oh, Jinho; Kim, Tae Wan; Jeong, Kwanyong; Park, Ji Hoon; Suh, Young-Woong
- Issue Date
- Sep-2018
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- liquid organic hydrogen carrier; dehydrogenation; carbon-coated alumina; supported Pd catalysts
- Citation
- CHEMCATCHEM, v.10, no.17, pp.3892 - 3900
- Indexed
- SCIE
SCOPUS
- Journal Title
- CHEMCATCHEM
- Volume
- 10
- Number
- 17
- Start Page
- 3892
- End Page
- 3900
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/149433
- DOI
- 10.1002/cctc.201800537
- ISSN
- 1867-3880
- Abstract
- The activity and stability of supported Pd catalysts are of crucial importance in the dehydrogenation of perhydro 2-(n-methylbenzyl)pyridine (H-12-MBP) reported as a potential liquid organic hydrogen carrier. Because of good stability examined in many hydroprocessing reactions, carbon-coated alumina (CCA) was chosen as a support for Pd loading and prepared by the pyrolysis of glycerol solution with different concentrations. The catalytic activity and stability of Pd/CCA catalysts exhibited a volcano-shaped relationship with the carbon content. Various characterization results revealed that the degree of carbon coating affected the acidity, Pd loading and particle size, reactant adsorption capacity, and H-2 release at low temperatures. At an optimal carbon content (3.3wt% in this work), these properties are believed to be balanced well, thus showing the best catalytic performance. Moreover, the improvement of catalytic activity was examined with supported Pd on carbon-coated silica-alumina of 3.3wt% carbon content.
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