摘要
Herein hydrogenolysis of biomass-derived 5-hydroxymethylfurfural (HMF) into 1,2,6-hexanetriol (1,2,6-HT) has been demonstrated using a MOF-derived Pt@Al 2 O 3 catalyst and NaBH 4 as the hydrogen source. The result showed a 63% 1,2,6-HT yield under relatively mild reaction conditions in aqueous media. Thein situmethod used for catalyst synthesis improved the homogeneous distribution of Pt species on the Al 2 O 3 support. The reaction pathway for the hydrogenolysis of HMF-to-1,2,6-HT conversion exhibited the formation of 2,5-bis(hydroxymethyl)-furan (2,5-DHF) and 2,5-bis(hydroxymethyl)tetrahydrofuran (THFDM) intermediates. The kinetic study revealed that the activation energy of THFDM (78.7 kJ mol −1 ) is higher than that of 1,2,6-HT (64.7 kJ mol −1 ), indicating that lower reaction temperature favors the production of 1,2,6-HT.