Influence of Sn on Stability and Selectivity of Pt–Sn@UiO-66-NH<sub>2</sub> in Furfural Hydrogenation
Biying Zhang, Yuchen Pei, Raghu V. Maligal‐Ganesh, Xinle Li, Andrew Cruz, R. Jackson Spurling, Minda Chen, Jiaqi Yu, Xun Wu, Wenyu Huang
Abstract
Bimetallic catalysts are gaining flourishing research interest due to their tunable electronic and geometric structure over monometallic catalysts. Herein, we prepare a series of Pt–Sn nanoparticles with various Sn/Pt ratios encapsulated in an amine-functionalized Zr metal–organic framework (Pt–Sn@UiO-66-NH2) by a sequential impregnation/reduction strategy. We find that PtSn0.10@UiO-66-NH2 with only 10% Sn addition significantly improves activity, selectivity, and stability toward the gas-phase furfural hydrogenation reaction compared with Pt@UiO-66-NH2. By comparing the spectroscopic and the catalytic results of Pt and PtSn0.10 nanoparticles confined in UiO-66 and UiO-66-NH2, we find that the enhanced catalytic property of PtSn0.10@UiO-66-NH2 is ascribed to the triple synergistic effect among the Pt, Sn, and −NH2 group on the MOF.