Vapor phase hydrogenation of aqueous levulinic acid over hydroxyapatite supported metal (M=Pd, Pt, Ru, Cu, Ni) catalysts.

Medak Sudhakar,Vickal V Kumar,Gutta Naresh,M Lakshmi Kantam,Suresh K Bhargava,Akula Venugopal

Applied Catalysis B: Environmental（2016）

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摘要

•Ca5(PO4)3(OH) a suitable support for Ru in hydrogenation of aqueous levulinic acid•Enhanced gamma-valerolactone yields with H2O as solvent•Weak Bronsted acid sites on Ru/hydroxyapatite led to gamma-valerolactone•Pyridine adsorbed IR spectra revealed weak Bronsted acid sites on Ru/hydroxyapatite•High TOF of γ-valerolactone over Ru/Ca5(PO4)3(OH) compared to Pt and Pd.

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关键词

Levulinic acid,Gamma-valerolactone,Hydroxyapatite,Ru,Nh3-tpd,Co2-tpd,TEM

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