A cobalt catalyst for reductive etherification of 5-hydroxymethyl-furfural to 2,5-bis(methoxymethyl)furan under mild conditions
作者:Xing-Long Li、Kun Zhang、Shi-Yan Chen、Chuang Li、Feng Li、Hua-Jian Xu、Yao Fu
DOI:10.1039/c7gc03072j
日期:——
cobalt catalyst was prepared by the simple reduction of commercially available Co3O4, and used to catalyze the reductive etherification of HMF to 2,5-bis(methoxymethyl)furan (BMMF) under mild conditions. A yield of 93% 2,5-bis(hydroxymethyl)furan (BHMF) was obtained (90 °C, 2 MPa H2, 1 h) and 98.5% yield of BMMF was achieved (140 °C, 2 MPa H2, 1 h) by using a Co-400 catalyst. The catalysts were characterized
平台分子5-羟甲基糠醛(HMF)转化为高附加值的衍生物引起了人们的极大兴趣。本文通过简单还原市售Co 3 O 4制备金属钴催化剂,并在温和条件下将其催化HMF还原醚化为2,5-双(甲氧基甲基)呋喃(BMMF)。获得了93%的2,5-双(羟甲基)呋喃(BHMF)产率(90°C,2 MPa H 2,1 h),达到了98.5%的BMMF产率(140°C,2 MPa H 2,)。 1 h)使用Co-400催化剂。通过X射线光电子能谱(XPS),粉末X射线衍射(XRD),氨程序升温脱附(NH 3)对催化剂进行了表征。-TPD),扫描电子显微镜(SEM),透射电子显微镜(TEM)和电感耦合等离子体原子发射光谱(ICP-AES)。发现在催化剂表面上共存有Co 0和Co 2 + / 3 +物种,并且在高温下还原后,催化剂变得更多孔且更粗糙。这对于增强醚化产物的选择性和反应物质的传质可能是更有益的。基于GC和1