新型Ru基催化剂的制备及其2-乙基蒽醌加氢性能  

Preparation of a novel Ru-based catalyst and its performance in the hydrogenation of 2-ethylanthraquinone

作　　者：谢继阳[1] 王红琴 杨杰[1] 唐春 戴云生 安霓虹 XIE Jiyang;WANG Hongqin;YANG Jie;TANG Chun;DAI Yunsheng;AN Nihong(State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals,Kunming 650106,Yunnan,China;Sino-Platinum Industrial Catalyst(Yunnan)Co.,Ltd.,Yuxi 651100,Yunnan,China)

机构地区：[1]昆明贵金属研究所,稀贵金属综合利用新技术国家重点实验室,云南昆明650106 [2]贵研工业催化剂(云南)有限公司,云南玉溪651100

出　　处：《化工进展》2021年第2期901-907,共7页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(21763014);云南省重大科技专项(2019ZE001)。

摘　　要：通过等体积浸渍法和多元醇法制备了负载型钌氧化铝催化剂(Ru/Al2O3-IMP和Ru/Al2O3-CRP),并首次探究了其在2-乙基蒽醌(2-eAQ)加氢催化反应中的性能。实验发现,在不同的反应条件(温度、压力、时间)下,Ru/Al2O3-CRP催化剂催化2-eAQ加氢反应的活性均高于Ru/Al2O3-IMP催化剂。采用电感耦合等离子体原子发射光谱(ICP-AES)、X射线衍射(XRD)、透射电镜(TEM)、光电子能谱(XPS)等分析技术对两种催化剂进行了结构表征。XRD和TEM表征结果发现,Ru/Al2O3-CRP催化剂表面的Ru金属颗粒具有高分散性且颗粒尺寸分布较窄。此外,XPS表征结果证实Ru/Al2O3-CRP催化剂上钌的电子云密度低,这使得它对2-eAQ上氧孤对电子有着强的吸引力,有利于活化2-eAQ,进而表现出强的加氢反应活性。The aluminum oxide supported ruthenium catalysts were prepared by impregnation and polyol method(i.e.,Ru/Al2O3-IMP and Ru/Al2O3-CRP),and their performance in the hydrogenation of 2-ethylanthraquinone(2-eAQ)was investigated.It was found that the catalysts prepared by different methods were all active and the Ru/Al2O3-CRP catalyst exhibited relatively high catalytic activity and stability.The catalysts were characterized by inductively coupled plasma atomic emission spectrometry(ICP-AES),X-ray diffraction(XRD),transmission electron microscopy(TEM)and photoelectron spectroscopy(XPS).The XRD and TEM results suggested that Ru particles were highly dispersed on the surface of the support.In addition,the Ru/Al2O3-CRP catalyst exhibited a low electron cloud density of Ru according to the XPS results,which made the Ru active sites more attractive to the lone pair electrons on the oxygen of 2-eAQ,and hence was conducive to activation of 2-eAQ.

关 键 词：钌/氧化铝 加氢 多元醇法 

分 类 号：O643.36[理学—物理化学]