Journal
JOURNAL OF CATALYSIS
Volume 297, Issue -, Pages 272-280Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2012.10.018
Keywords
Carbon nitride; Quinoline; Chemoselective hydrogenation; Heterogeneous catalyst; Mild condition
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Funding
- Joint Petroleum and Petrochemical Funds of the National Natural Science Foundation of China
- China National Petroleum Corporation [U1162124]
- Fundamental Reasearch Funds for the Central Universities
- Program for Zhejiang Leading Team of ST Innovation [2011R50007]
- Partner Group Program of the Zhejiang University
- Max-Planck Society
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Polymeric mesoporous carbon graphitic nitrides (mpg-C3N4) and ordered mesoporous graphitic carbon nitrides (ompg-C3N4) with different surface area and morphology were used to prepare palladium catalysts (Pd@C3N4) by an easy ultrasonic-assisted method. These catalysts demonstrated excellent activity and selectivity for hydrogenation of quinoline to 1,2,3,4-tetrahydroquinoline under mild temperature (30-50 degrees C) and H-2 pressure (1 bar). Pd@ompg-C3N4(r = 2.5) showed the best catalytic performance and both the activity and selectivity could be maintained for at least six reaction runs. The introduction of ordered cylindrical mesoporous structure and high concentration of surface Pd-0 (about 70%) contribute to the high reaction activity and selectivity over Pd@lompg-C3N4 catalysts. (c) 2012 Elsevier Inc. All rights reserved.
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