The selective hydrogenation of furfural over intermetallic compounds with outstanding catalytic performance
作者:Yusen Yang、Lifang Chen、Yudi Chen、Wei Liu、Haisong Feng、Bin Wang、Xin Zhang、Min Wei
DOI:10.1039/c9gc01119f
日期:——
The selective hydrogenation of furfural (a biomass-derived platform compound, CO versus CC) is an important reaction for the production of chemical intermediates widely used in the polymer industry. Herein, we report three non-precious intermetallic compounds (IMCs) (Ni3Sn1, Ni3Sn2 and Ni3Sn4) derived from a layered double hydroxide (LDH) precursor, which are characterized by a highly uniform dispersion
糠醛的选择性加氢(生物质衍生平台化合物,C ö与Ç C)是用于生产广泛用于聚合物工业的化学中间体的重要反应。在此,我们报道了从层状双氢氧化物(LDH)前体衍生的三种非贵金属互化物(IMC)(Ni 3 Sn 1,Ni 3 Sn 2和Ni 3 Sn 4),其特征在于IMC的高度均匀分散纳米颗粒,并显示出惊人的催化性能,可将糠醛(CO)选择性氢化为糠醇。特别是Ni 3 Sn 2IMC表现出最佳的催化性能(转化率:100%;选择性:99%),超过了报道的非贵金属催化剂,甚至可以与贵金属催化剂(例如Au,Pd和Pt)相媲美。基于原位FT-IR,XANES和Bader电荷研究的组合研究验证了电子从Sn到Ni的转移,从而促进了Ni顶部位点上C O键的吸附活化,同时抑制了C C的吸附。研究(原位FT-IR和催化评估)和理论计算(DFT计算和微动力学模型)揭示了糠醛分子在Ni 3 Sn 2上的垂直吸附构型I