2-Ethyl-9,10-anthraquinone assisted sol–gel synthesis of Pd/γ-Al2O3 nanorods with enhanced catalytic performance in 2-ethyl-9,10-anthraquinone hydrogenation  

作　　者：Weiquan Cai Junlin Zhuo Jimin Fang Zhichao Yang 

机构地区：[1]School of Chemistry and Chemical Engineering,Guangzhou University,230 Guangzhou University City Outer Ring Road,Guangzhou 510006,China [2]School of Chemistry,Chemical Engineering and Life Sciences,Wuhan University of Technology,Wuhan 430070,China [3]School of Resources and Environmental Engineering,Wuhan University of Technology,Wuhan 430070,China

出　　处：《Chinese Journal of Chemical Engineering》2019年第8期1863-1869,共7页中国化学工程学报（英文版）

基　　金：Supported by the 2016 Wuhan Yellow Crane Talents(Science)Program;One Hundred Talents Project of Guangzhou University(No.69-18ZX10016)

摘　　要：A series of nanorod-like porous Pd/γ-Al2 O3 catalysts with controllable textural properties and enhanced catalytic performance in 2-ethyl-9,10-anthraquinone(eAQ) hydrogenation for H2 O2 preparation were successfully prepared via a facile sol-gel method using aluminum isopropoxide as aluminum precursor and eAQ as structure directing agent,sequential calcination and impregnation process with Na2 PdCl4 solution.The physicochemical properties of the catalysts obtained with different addition amounts of eAQ.were comparatively characterized by XRD,TG-DSC,BET,TEM,CO-TPR,H2-TPR and H2-O2 titration.The results show that addition of eAQ can not only effectively control the textural properties(surface area,pore volume and average pore size) of the catalysts,but also lower their reduction temperature of active metal.Importantly,the catalyst obtained with an addition amount of 4 wt% eAQ shows the highest hydrogenation efficiency of 10.28 g·L^-1,which is 37.3% higher than 7.49 g·L^-1 of the catalyst obtained without eAQ.A series of nanorod-like porous Pd/γ-Al2 O3 catalysts with controllable textural properties and enhanced catalytic performance in 2-ethyl-9,10-anthraquinone（eAQ） hydrogenation for H2 O2 preparation were successfully prepared via a facile sol-gel method using aluminum isopropoxide as aluminum precursor and eAQ as structure directing agent,sequential calcination and impregnation process with Na2 PdCl4 solution.The physicochemical properties of the catalysts obtained with different addition amounts of eAQ.were comparatively characterized by XRD,TG-DSC,BET,TEM,CO-TPR,H2-TPR and H2-O2 titration.The results show that addition of eAQ can not only effectively control the textural properties（surface area,pore volume and average pore size） of the catalysts,but also lower their reduction temperature of active metal.Importantly,the catalyst obtained with an addition amount of 4 wt% eAQ shows the highest hydrogenation efficiency of 10.28 g·L-1,which is 37.3% higher than 7.49 g·L-1 of the catalyst obtained without eAQ.

关 键 词：Catalyst HYDROGENATION Alumina 2-Ethyl-9 10-anthraquinone Structure directing agent H2O2 

分 类 号：O64[理学—物理化学]