铝酸镧钙钛矿负载Pt催化剂上硝基苯加氢研究  

Study on the Nitrobenzene Hydrogenation over Lanthanum Aluminate Perovskite-Supported Pt Catalyst

作　　者：姚文磊 解晓伟 Yao Wenlei;Xie Xiaowei(School of Chemical Engineering and Light Industry,Guangdong University of Technology,Guangzhou Guangdong 510006,China)

机构地区：[1]广东工业大学轻工化工学院,广东广州510006

出　　处：《山西化工》2023年第12期18-19,22,共3页Shanxi Chemical Industry

摘　　要：以柠檬酸为络合剂,采用溶胶凝胶法合成铝酸镧钙钛矿载体,并使用初湿浸渍法以Pt(NH3)4(NO3)2为前驱体制备了铝酸镧载体负载的0.5%(质量分数)Pt基催化剂,考察了其催化硝基苯加氢性能。结果表明,所制备的催化剂在4 MPa H2压力、反应温度80℃、反应时间30 min时,可以获得100%硝基苯转化率和96.7%苯胺选择性。A lanthanum aluminate perovskite support was synthesized by sol-gel method with citric acid as coordination agent,and a 0.5%Pt based catalyst supported on the lanthanum aluminate support was prepared by incipient wetness impregnation with Pt(NH3)4(NO3)2 as a precursor.The catalytic performance of Pt/LaAlO3 for nitrobenzene hydrogenation was investigated.The results showed that the prepared catalyst could achieve 100%nitrobenzene conversion and 96.7%aniline selectivity at a H2 pressure of 4 MPa,a reaction temperature of 80℃,and a reaction period of 30 minutes.

关 键 词：铝酸镧钙钛矿 Pt基催化剂 硝基苯加氢 

分 类 号：O643.322[理学—物理化学]