Journal
MOLECULAR CATALYSIS
Volume 535, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.mcat.2022.112830
Keywords
Selective hydrogenation; Light -induced energy; Oxygen vacancy; Palladium; Phenol
Categories
Ask authors/readers for more resources
An active catalyst Pd/TiO2(M) was constructed through a ball-milling process for phenol hydrogenation to cyclohexanone. This mechanical process avoids thermal reduction in hydrogen atmosphere and creates oxygen vacancies on TiO2, improving the catalytic performance of palladium. The Pd/TiO2(M) exhibits outstanding catalytic activity and selectivity for phenol hydrogenation to cyclohexanone due to the surface defective structures of Ti3+-Ov stabilizing Pd nanoclusters and promoting the formation of electron-rich Pd.
An active catalyst Pd/TiO2(M) for phenol hydrogenation to cyclohexanone was constructed via a ball-milling process. This mechanical process avoids the thermal reduction in hydrogen atmosphere and creates oxygen vacancies on TiO2, which prevents the oxide support encapsulating active metal palladium due to the strong metal-support interaction(SMSI) but improves the catalytic performance of palladium. Under atmospheric hydrogen generated by electrolyzingwater, phenol can be hydrogenated to cyclohexanone selectively. Charac-terizations, control experiments and DFT calculations reveal that surface defective structures of Ti3+-Ov can stabilize Pd nanoclusters and promote the formation of electron-rich Pd. This kind of electronic metal-support interaction facilitates the dissociative adsorption of phenol, so that Pd/TiO2(M) exhibits outstanding catalytic activity and selectivity for phenol hydrogenation to cyclohexanone.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available