南京工业大学学报（自然科学版）2012，Vol.34Issue(2)：63-66,4.DOI:10.3969/j.issn.1671-7627.2012.02.014
还原条件对Pd/Al2O3催化剂上对硝基苯酚加氢性能的影响
Effects of reduction conditions on hydrogenation of p-nitrophenol by Pd/Al2O3 catalysts
摘要
Abstract
Pd/A12O3 catalysts were prepared by the excessive impregnation-chemical reduction method and characterized by inductive coupled plasma (ICP) and X-ray diffraction (XRD). The effects of reduction conditions such as reduction agents,reduction temperature and reduction time, were investigated in hy-drogenation of p-nitrophenol. Results showed that the reduction conditions affected the catalyst crystallite and activity. The Pd/Al2O3 reduced at 0 ℃ for 30 min by N2H4·H2O showed the best catalytic performance. The hydrogenation rate of 22. 7 mmol/( min · g) ,p-aminophenol selectivity of 100% , and the yield of 99% , were obtained. In comparison with raney-Ni,the prepared Pd/Al2O3 catalyst exhibited higher catalytic activity, selectivity and stability.关键词
Pd/Al2 O3/对硝基苯酚/浸渍/液相还原Key words
palladium/alumina/p-nitrophenol/impregnation/chemical reduction分类
化学化工引用本文复制引用
李冬燕,陈日志..还原条件对Pd/Al2O3催化剂上对硝基苯酚加氢性能的影响[J].南京工业大学学报（自然科学版）,2012,34(2):63-66,4.基金项目
国家自然科学基金资助项目(20806038) （20806038）
