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Selective aerobic oxidation of 5-hydroxymethylfurfural to 2,5-dimethylfuran over heteroatom-doped ordered carbon supported Ru catalysts
Journal of Porous Materials ( IF 2.6 ) Pub Date : 2020-03-25 , DOI: 10.1007/s10934-020-00872-6
Hui-Fang Ren , Xiao Luo , Ke Zhang , Qiang Cai , Chun-Ling Liu , Wen-Sheng Dong

Heteroatom (N, B or P)-doped ordered mesoporous carbons (OMCs) supported Ru catalysts was utilized in the aerobic oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF). The characterization data showed that the heteroatom-doping of OMC promoted the dispersion of Ru nanoparticles on catalysts, which further improved their catalytic activities for the selective aerobic oxidation of HMF into DFF. Among the three kinds of heteroatom-doped Ru catalysts, the P-doped one displayed the best activity for the selective aerobic oxidation of HMF into DFF. From Ru/OMC-P0.56, 100% of HMF conversion, 88% of DFF yield with a high activity of 68.7 h−1 were achieved at 90 °C for 4 h under 2 MPa O2 in toluene. Partial inactivation of catalyst was observed in the recycling runs, which might be attributed to the deposition of humins on catalyst and the agglomeration of Ru particles.



中文翻译:

杂原子掺杂有序碳负载Ru催化剂上5-羟甲基糠醛选择性好氧氧化为2,5-二甲基呋喃

杂原子(N,B或P)掺杂的有序介孔碳(OMC)负载的Ru催化剂用于将5-羟甲基糠醛(HMF)有氧氧化为2,5-二甲酰呋喃(DFF)。表征数据表明,OMC的杂原子掺杂促进了Ru纳米颗粒在催化剂上的分散,进一步提高了其对HMF选择性好氧氧化为DFF的催化活性。在三种杂原子掺杂的Ru催化剂中,P掺杂的催化剂对HMF选择性好氧氧化为DFF表现出最好的活性。根据Ru / OMC-P0.56,在2 MPa O 2下于90°C加热4 h ,HMF转化率为100%,DFF产率为88%,活性为68.7 h -1在甲苯中。在再循环过程中观察到催化剂部分失活,这可能归因于腐殖质在催化剂上的沉积和Ru颗粒的团聚。

更新日期:2020-03-25
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