Ordered mesoporous Cu-Ca-Zr:A superior catalyst for direct synthesis of methyl formate from syngas

查看全文 作　　者：Jiahao [1,2]Zhuang;Bin [1,2]Lu;Fangna [1,3]Gu;Ziyi [4]Zhong;Fabing [1,3,5]Su

机构地区：[1]State Key Laboratory of Multiphase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;[2]University of Chinese Academy of Sciences,Beijing 100049,China;[3]Zhongke Langfang Institute of Process Engineering,Fenghua Road No.1,Langfang Economic&Technical Development Zone,Hebei Province 065001,China;[4]Institute of Chemical and Engineering Sciences,Agency for Science,Technology and Research(A*STAR),1 Pesek Road,Jurong Island,Singapore 627833,Singapore;[5]Institute of Industrial Chemistry and Energy Technology,Shenyang University of Chemical Technology,Shenyang 110142,China

出　　处：《Carbon Resources Conversion》索引2018年第1卷第2期,共9页

基　　金：The authors gratefully acknowledge the financial supports from the National Natural Science Foundation of China(21776286);the National Basic Research Program of China(2014CB744306);the Fund of State Key Laboratory of Multiphase complex systems(MPCS–2015–A–06). 摘　　要：It is still a big challenge to obtain both highly active and stable Cu-based catalysts for direct synthesis of methyl formate(MF)from syngas.To address the issue,we have designed and synthesized a series of ternary Cu-Ca-Zr catalysts,namely,the ordered mesoporous Cu-Ca-Zr catalyst prepared by one-pot evaporation-induced self-assembly(EISA)method,and the supported CuO/CaO-ZrO_(2)catalysts by impregnating with copper precursor or by immobilizing copper nanoparticles.In the latter two catalysts,the ordered mesoporous CaO-ZrO_(2)support was also prepared by the EISA method.The catalysts were characterized by techniques such as ICP,XRD,TEM,N2 isotherm adsorption-desorption,XPS and H2-TPR,and used for direct synthesis of MF.The results indicated that the catalyst prepared by onepot EISA method,in which the CuO species are highly dispersed in frame of CaO-ZrO_(2),exhibits much better activity and stability as compared with the other two catalysts with most of CuO located on the outer surface of the CaO-ZrO_(2)support,because the former has a higher specific surface area,enhanced synergistic effect and stronger interaction between the CaO-ZrO_(2)support and CuO active constituent. 关键词：Methyl formate Direct synthesis Cu-based catalyst Ordered mesoporous ACTIVITY

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Ordered mesoporous Cu-Ca-Zr:A superior catalyst for direct synthesis of methyl formate from syngas

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