Palladium and carbon synergistically catalyzed room-temperature hydrodeoxygenation (HDO) of vanillyl alcohol-A typical lignin model molecule
Qi Wanga,b, Neeraj Guptab, Guodong Wenb, Sharifah Bee Abd Hamidc, Dang Sheng Sub
a School of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, Anhui, China;
b Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, Liaoning, China;
c Nanotechnology & Catalysis Research Centre(NANOCAT), University of Malaya, IPS Building, 50603 Kuala Lumpur, Malaysia
摘要 Vanillyl alcohol, which is made up of an aromatic ring, an alcoholic hydroxyl group, a phenolic hydroxyl group and a methoxy group, was selected as the model molecule of lignin. Various carbon materials supported Pd catalysts were chosen to catalyze the HDO of vanillyl alcohol. The catalysts were characterized via TEM, TPD, XRD, XPS and CO-chemisorption. It was found that different carbon materials could obviously influence the particle sizes, dispersion and distribution of Pd or PdO particles. Palladium and carbon can synergistically catalyze the room-temperature HDO of vanillyl alcohol even at room temperature, and the carboxyl group was found to be the effective active acid site during the reaction. Possible reaction mechanism was also proposed. The existence of the effective active acid sites on the carbon supports could obviously lower the reaction temperature without decreasing the selectivity, as a result, making the production of renewable fuels by HDO much more economically feasible, which is of much importance.
This work was supported by financial support from the National Science Foundation of China (21133010, 21473223, 51221264, 21261160487, 21411130120, 21503241, 91545119, 91545110), "Strategic Priority Research Program" of the Chinese Academy of Sciences, Grant no. XDA09030103, CAS/SAFEA International Partnership Program for Creative Research Teams. Neeraj Gupta thanks Chinese Academy of Sciences for the postdoctoral award.
通讯作者 Dang Sheng
.Palladium and carbon synergistically catalyzed room-temperature hydrodeoxygenation (HDO) of vanillyl alcohol-A typical lignin model molecule[J]
, 2017,V26(1): 8-16
.Palladium and carbon synergistically catalyzed room-temperature hydrodeoxygenation (HDO) of vanillyl alcohol-A typical lignin model molecule[J] Journal of Energy Chemistry, 2017,V26(1): 8-16