摘要
选用不同溶剂配制CoCl2溶液,由化学还原法制备了一系列Co-B非晶态合金催化剂,这些催化剂在糠醛选择性加氢制备糠醇反应中均显示高选择性(接近100%),而乙醇介质中制得的Co-B催化剂,其催化活性显著高于其他溶剂所制备的催化剂.结合表征,初步探讨了不同溶剂对催化剂的结构、电子态以及催化性能的影响.
In this article, a series of Co-B catalysts were prepared by chemical reduction of CoCl2 with KBH4 in different media. The catalysts displayed high selectivity to furfuryl alcohol (near 100% ) in Liquid phase furfural hydrogenation. The Co-B catalyst obtained in ethanol solution exhibited higher activity than the other Co-B catalysts obtained in other media. Based on various characterizations, the effects of media used for catalyst preparation on both the structure and the surface electronic states of the as-prepared catalysts were examined. Meanwhile, the correlation of catalytic properties to the structural and electronic characteristics was also discussed briefly.
出处
《上海师范大学学报（自然科学版）》
2005年第2期87-90,共4页
Journal of Shanghai Normal University(Natural Sciences)
基金
上海市分子催压和功能材料重点实验室.
关键词
Co—B非晶态合金催化剂
催化加氢
糠醛
糠醇
反应介质
Co-B amorphous catalyst
hydrogenation
furfural (FFR)
furfuryl alcohol (FFA)
solvent effects
