The Role of Gold Nanoparticles on Different Supports for the In-Air Conversion of Levulinic Acid into γ-Valerolactone with Formic Acid as an Alternative Hydrogen Source


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In this report, catalysts of Au nanoparticles on different supports (Au/ZrO2, Au/C, Au/Al2O3, Au/SiO2, Au/TiO2, Au/MgO) were fabricated by co-precipitation and impregnation methods to determine the role of Au over oxides. The crystal structure and phase composition of catalyst samples before and after test reactions were investigated by X-ray diffraction technique, X-ray photoelectron spectroscopy and transmission electron microscopy. The catalytic activity was tested on the hydrogenation reaction of levulinic acid (LA) into γ-valerolactone (GVL) using formic acid (FA) as a hydrogen source. In all tested samples, Au/ZrO2-D (was fabricated by co-precipitation method) gave the best GVL yield of 85.0% with very low amount of catalyst loading (catalyst/reactant 1 wt). The existent of Au3+ in the catalyst system may be the main factor to improve the yield of GVL formation.

作者简介

Pham Son

Faculty of Chemistry

编辑信件的主要联系方式.
Email: phamanhson@hus.edu.vn
越南, Hanoi, 11021

Do Hoang

Faculty of Chemistry

Email: phamanhson@hus.edu.vn
越南, Hanoi, 11021

Kieu Canh

Tran Quoc Tuan University

Email: phamanhson@hus.edu.vn
越南, Co Dong, Son Tay, Ha Noi, 12714

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