Ding Zhiyao, Gao Yujun, Hu Lianghai, Yang Xiaomin
School of Life Sciences, Jilin University, Changchun 130012, China.
College of Chemistry, Jilin University, Changchun 130012, China.
Molecules. 2024 Jun 3;29(11):2638. doi: 10.3390/molecules29112638.
A series of bimetallic NiCu catalysts with different metal molar ratios, supported on nitric acid modified rice husk-based porous carbon (RHPC), were prepared using a simple impregnation method for the liquid-phase hydrogenation of furfural (FFA) to tetrahydrofurfuryl alcohol (THFA). The NiCu/RHPC catalyst, with an average metal particle size of 9.3 nm, exhibits excellent catalytic performance for the selective hydrogenation of FFA to THFA. The 100% conversion of FFA and the 99% selectivity to THFA were obtained under mild reaction conditions (50 °C, 1 MPa, 1 h), using water as a green reaction solvent. The synergistic effect of NiCu alloy ensures the high catalytic activity. The acid sites and oxygen-containing functional groups on the surface of the modified RHPC can enhance the selectivity of THFA. The NiCu/RHPC catalyst offers good cyclability and regenerability. The current work proposes a simple method for preparing an NiCu bimetallic catalyst. The catalyst exhibits excellent performance in the catalytic hydrogenation of furfural to tetrahydrofurfuryl alcohol, which broadens the application of non-noble metal bimetallic nanocatalysts in the catalytic hydrogenation of furfural.
采用简单浸渍法制备了一系列负载在硝酸改性稻壳基多孔碳（RHPC）上、具有不同金属摩尔比的双金属NiCu催化剂，用于糠醛（FFA）液相加氢制四氢糠醇（THFA）。平均金属粒径为9.3 nm的NiCu/RHPC催化剂对FFA选择性加氢制THFA表现出优异的催化性能。以水作为绿色反应溶剂，在温和反应条件（50℃、1 MPa、1 h）下可实现FFA的100%转化以及对THFA 99%的选择性。NiCu合金的协同效应确保了高催化活性。改性RHPC表面的酸性位点和含氧官能团可提高THFA的选择性。NiCu/RHPC催化剂具有良好的循环性和可再生性。当前工作提出了一种制备NiCu双金属催化剂的简单方法。该催化剂在糠醛加氢制四氢糠醇的催化反应中表现出优异性能，拓宽了非贵金属双金属纳米催化剂在糠醛催化加氢中的应用。
