Nano-Pt and Nano-Pd particles were introduced to modified multiwalled carbon nanotubes via co-impregnation method for hydrogenation of furfural in liquid phase using ethanol as a solvent. Different transition metal (Cr, Mn, Fe, Co, Ni) was used as promoters using Pt/MWNT and Pd/MWNT catalysts and various supports were also compared to further investigate the hydrogenation process of furfural. Among the catalysts investigated, Pt–Fe/MWNT (Pt: 0.5 wt%) showed highest conversion and selectivity to furfuryl alcohol (yield of 87.4%), while Pd–Ni/MWNT (Pd: 0.5 wt%) catalysts exhibited the best catalytic performance (83.3% yield of tetrahydrofurfuryl alcohol) under the optimized conditions of 30 bar hydrogen and 5 h, at 100 and 130 °C, respectively. Synergistic effect of bimetallic catalysts has been utilized to improve catalytic activity and stability. The extremely active for the selective hydrogenation of furfural over Pt–Fe/MWNT and Pd–Ni/MWNT catalyst might be attributed to active crystal planes exposed over Pt and Pd promoted by Fe and Ni. Catalysts have shown stable activity and selectivity after 5 cycles using Pt–Fe/MWNT and Pd–Ni/MWNT catalysts. Moreover, we suggest that acid sites of conventional supports might have an impact on furfural conversion.

通过共浸渍法将纳米铂和纳米钯粒子引入改性多壁碳纳米管中，以乙醇为溶剂在液相中糠醛加氢。使用Pt / MWNT和Pd / MWNT催化剂将不同的过渡金属（Cr，Mn，Fe，Co，Ni）用作助催化剂，并比较了各种载体以进一步研究糠醛的氢化过程。在所研究的催化剂中，Pt-Fe / MWNT（Pt：0.5 wt％）表现出最高的转化率和对糠醇的选择性（收率87.4％），而Pd-Ni / MWNT（Pd：0.5 wt％）催化剂表现出最好的催化性能在30 bar氢气和5 h的最佳条件下，分别在100和130°C下的最佳性能（四氢糠醇的产率为83.3％）。已经利用双金属催化剂的协同作用来改善催化活性和稳定性。在Pt-Fe / MWNT和Pd-Ni / MWNT催化剂上糠醛的选择性加氢活性极高，这可能归因于Fe和Ni促进的Pt和Pd上暴露的活性晶面。使用Pt-Fe / MWNT和Pd-Ni / MWNT催化剂经过5个循环后，催化剂显示出稳定的活性和选择性。此外，我们建议常规载体的酸性位点可能对糠醛转化率有影响。