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Catalytic deoxygenation of vanillin over layered double hydroxide supported Pd catalyst
Chanjuan Liao,Xixi Liu,Yongshen Ren,Daoxin Gong,Zehui Zhang 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.68 No.-
A sustainable method was developed for the upgrade of biomass derived vanillin (a typical model compound of lignin) into the potential liquid biofuels over a layered double hydroxide supported Pd catalyst (abbreviated as CoAl–LDH/Pd). The CoAl–LDH/Pd catalyst showed high catalytic activity towards the hydrodeoxygenation of vanillin into 2-methoxy-4-methylphenol (MMP) under mild conditions in aqueous media. High MMP yield up to 86% was produced at 120 C after 4 h. Kinetic studies revealed that the rate-determining step for the hydrodeoxygenation of vanillin was the hydrogenolysis of vanillyl alcohol. More importantly, the CoAl–LDH/Pd catalyst was highly stable without the loss of activity.