摘要
采用化学浸渍法制备出Au/Co_3O_4纳米复合材料,用透射电子显微镜(TEM)、X射线能谱(EDS)和X射线粉末衍射(XRD)等对其结构和组成进行了表征,并考察了其在对硝基苯酚加氢反应中的催化性能。表征结果表明,Au纳米粒子很好地分散在Co_3O_4载体上。催化性能测试表明,Au/Co_3O_4纳米复合材料对于对硝基苯酚加氢反应表现出优异的催化活性,TOF值为5.01 min^(-1);此外,催化剂经过5次循环仍然保持优异的催化性能。
Au/Co3O4 nanocomposites were synthesized via the chemical impregnation method. The structure and composition of the product obtained were characterized by TEM, EDS and XRD, and the catalytic performance of Au/Co3O4 was evaluated in the hydrogenation reaction of 4-nitrophenol. The results showed that Au nanoparticles were well dispersed on the surface of Co3O4. Au/Co3O4 displayed superior catalytic activity with a turnover frequency （TOF） of 5.01 min-1 for the hydrogenation of 4-NP. In addition, Au/Co3O4 remained active after recycling five times.
作者
郭帅龙
杨宇雯
李郁秀
巢云秀
杨宏伟
王川
田相亮
GUO Shuailong;YANG Yuwen;LI Yuxiu;CHAO Yunxiu;YANG Hongwei;WANG Chuan;TIAN Xiangliang(State Key laboratory of Advanced Technologies for Comprehensive Utilization of Platinum metals,Kunming Institute of Precious Metals,Kunming 650106,China)
出处
《贵金属》
CAS
CSCD
北大核心
2018年第2期54-58,共5页
Precious Metals
基金
国家自然科学基金项目(21363011)
云南省科技计划项目(2013FB094
2016DC033)
云南省两类人才项目(2017HB060)
