Ahn, Chang-Il Kwak, Yeonsu Kim, Ah-Reum Jang, Munjeong Badakhsh, Arash Cha, Junyoung Kim, Yongmin Jo, Young Suk Jeong, Hyangsoo Choi, Sun Hee Nam, Suk Woo Yoon, Chang Won Sohn, Hyuntae 2024-01-19T12:00:12Z 2024-01-19T12:00:12Z 2022-11-04 2022-06 0926-3373 https://pubs.kist.re.kr/handle/201004/115093 Pt supported on ordered mesoporous silica (KIT-6) catalyst was examined for the dehydrogenation of homocyclic liquid organic hydrogen carriers (LOHCs, 1: MCH, 2: hydrogenated biphenyl-based eutectic mixture (H-BPDM)) conditions. The longer pore-residence time of the MCH molecules in the 3D bicontinuous pore structure of the Pt/ KIT-6 catalyst strongly affected the catalytic activity because a higher MCH concentration was achieved in the vicinity of the Pt active sites. Pt/KIT-6 catalyst exhibited a higher surface area, pore volume, and Pt dispersion with narrower particle size distribution (average Pt particle size: -1.3 nm). Therefore, higher LOHC conversion with faster hydrogen production occurred, with a higher hydrogen selectivity over Pt/KIT-6 compared with Pt/ SiO2 and Pt/Al2O3. Long-term experiment results indicated that the Pt/KIT-6 catalytic activity was stable over the reaction time than that of the other catalysts. No significant structural collapse occurred in KIT-6 during the dehydrogenation. Carbon coking was observed for all three samples. English Elsevier BV Dehydrogenation of homocyclic liquid organic hydrogen carriers (LOHCs) over Pt supported on an ordered pore structure of 3-D cubic mesoporous KIT-6 silica Article 10.1016/j.apcatb.2022.121169 1 Applied Catalysis B: Environmental, v.307 Applied Catalysis B: Environmental 307 Y scie scopus 000788063500001 2-s2.0-85125752276 Chemistry, Physical Engineering, Environmental Engineering, Chemical Chemistry Engineering Article DODECAHYDRO-N-ETHYLCARBAZOLE CATALYTIC DEHYDROGENATION SELECTIVE OXIDATION SBA-15 SYNTHESIS METHYLCYCLOHEXANE PLATINUM STORAGE RELEASE SIZE PERFORMANCE Methylcyclohexane Liquid organic hydrogen carriers Dehydrogenation KIT-6 Ordered mesoporous silica