Abstract：
Catalytic transfer hydrogenation (CTH), that employs protic solvents as hydrogen sources to alleviate the use of molecular hydrogen H2, has gained great attention. This work, reports multifunctional, metallic Cu nanoparticles supported ZIF-8 material for CTH of furfural to a highly valued fuel additive, 2-methylfuran (2-MF) using 2-propanol. Of all as-synthesized xCu(yM)/ZIF-8 catalysts with varied NaBH4 concentration (yM) and Cu loading (x), 11Cu(1.5 M)/ZIF-8 exhibited higher catalytic activity with > 99 % FAL conversion and 93.9 % 2-MF selectivity. This is ascribed to its high specific surface area, and existence of optimum amount of Lewis acid-base sites along with Cu0 species, which are responsible for hydrogenation of furfural to furfuryl alcohol and subsequent hydrogenolysis to produce 2-MF. The present work reports a highly efficient and stable, metal-MOF hybrid material for CTH of FAL to 2-MF, which is one among the best reports available in literature, therewith suggests a promising approach for bio-oil upgradation.
摘要：
催化转移氢化(CTH),采用质子溶剂作为氢源来缓解分子氢H2的使用,得到了极大的关注。这项工作,报告多功能，金属Cu纳米颗粒负载ZIF-8材料，用于糠醛的CTH到高价值的燃料添加剂，使用2-丙醇的2-甲基呋喃(2-MF)。在所有合成的具有不同NaBH4浓度（yM）和Cu负载量（x）的xCu（yM）/ZIF-8催化剂中，11Cu(1.5M)/ZIF-8表现出更高的催化活性,具有>99%的FAL转化率和93.9%的2-MF选择性。这归因于其高比表面积，并且存在最佳量的Lewis酸碱位点以及Cu0物种，它们负责将糠醛氢化成糠醇，然后氢解产生2-MF。本工作报告高效稳定,FAL至2-MFCTH的金属-MOF杂化材料，这是文献中最好的报告之一，由此提出了一种有希望的生物油升级方法。
