RuPt双金属在催化加氢反应中的性能研究  

Research on the properties of RuPt bimetals in catalytic hydrogenation reaction

作　　者：刘曼君 王柳枫 王梁炳 LIU Man-jun;WANG Liu-feng;WANG Liang-bing(School of Materials Science and Engineering,Central South University,Changsha 410083 China;Zhejiang NHU Company Co.Ltd.,Shaoxin 312500,Zhejiang,China)

机构地区：[1]中南大学材料科学与工程学院,长沙410083 [2]浙江新和成股份有限公司,浙江绍兴312500

出　　处：《贵金属》2021年第3期21-25,30,共6页Precious Metals

基　　金：国家自然科学基金项目(51801235);湖南省自然科学基金(2018RS3019,2019JJ30033)。

摘　　要：采用溶剂热法制备了5%Pt/C、5%Ru/C和5%Ru_(95)Pt_(5)/C三种催化剂。对催化剂的形貌和活性组分分布进行了表征分析,分别研究了不同催化剂在苯乙炔或4-硝基酚加氢反应中的催化性能。结果表明,由于协同效应,双金属负载的催化剂5%Ru_(95)Pt_(5)/C比单金属催化剂具有更好的催化加氢性能。在苯乙炔加氢反应中,5%Ru_(95)Pt_(5)/C具有更高的选择性和优异的活性;在4-硝基酚的加氢中,5%Ru_(95)Pt_(5)/C的催化活性显著增加,且在循环5次后,仍保留了>99%的活性。In this paper,5%Pt/C,5%Ru/C and 5%Ru_(95)Pt_(5)/C were prepared by a solvent thermal method.Their morphology and composition distribution were characterized and analyzed.The catalytic performance of the catalysts in hydrogenation of phenylacetylene and 4-nitrophenol were studied.The results showed that 5%Ru_(95)Pt_(5)/C had better catalytic performance of hydrogenation than the other two monometallic catalysts because of synergistic effect.In the hydrogenation of phenylacetylene,5%Ru_(95)Pt_(5)/C had higher selectivity and more excellent activity than other two catalysts.In the hydrogenation of 4-nitrophenol,the catalytic activity of 5%Ru_(95)Pt_(5)/C was significantly increased,and it remained>99%activity after 5 cycles.

关 键 词：双金属 催化加氢 苯乙炔 4-硝基酚 选择性 

分 类 号：TQ426.82[化学工程]