典型文献
Construction of a Br?nsted-Lewis solid acid catalyst La-PW-SiO2/SWCNTs based on electron withdrawing effect of La(Ⅲ)on πbond of SWCNTs for biodiesel synthesis from esterification of oleic acid and methanol
文献摘要：
A novel solid Br?nsted-Lewis acid catalyst La-PW-SiO2/SWCNTs(single-wall carbon nanotubes)was syn-thesized from the synergistic modification of H3PW12O40(HPW)by single-walled carbon nanotubes func-tionalized with sidewall hydroxyl groups(SWCNTs-OH)and La3+via sol-gel method.The freshly prepared catalyst was characterized by several methods,and the catalytic activity and stability of it were studied from the esterification of oleic acid and methanol.Results showed that the highest conversion of oleic acid was 93.1％(mass)and maintained as high as 88.7％(mass)after six cycles of La-PW-SiO2/SWCNTs.The high catalytic activity and stability of La-PW-SiO2/SWCNTs can be attributed to the strong electron withdrawing effect of La3+on π bond of SWCNTs,because it can facilitate the formation of a large number of strong Lewis acid sites.Therefore,the reduction of catalytic activity of a solid acid catalyst due to the fact that hydration reaction of its Br?nsted acid sites can be effectively reduced.La-PW-SiO2/SWCNTs can be an efficient and economical catalyst,because it shows good catalytic activity and stability.
文献关键词：
中图分类号：
作者姓名：
Qing Shu;Xinyuan Liu;Yanting Huo;Yuhui Tan;Caixia Zhang;Laixi Zou
作者机构：
School of Chemical and Chemical Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China
文献出处：
引用格式：
[1]Qing Shu;Xinyuan Liu;Yanting Huo;Yuhui Tan;Caixia Zhang;Laixi Zou-.Construction of a Br?nsted-Lewis solid acid catalyst La-PW-SiO2/SWCNTs based on electron withdrawing effect of La(Ⅲ)on πbond of SWCNTs for biodiesel synthesis from esterification of oleic acid and methanol)[J].中国化学工程学报（英文版）,2022(04):351-362
A类：
La3+via,La3+on
B类：
Construction,Br,nsted,Lewis,solid,acid,catalyst,SiO2,SWCNTs,electron,withdrawing,bond,biodiesel,synthesis,from,esterification,oleic,methanol,novel,single,carbon,nanotubes,was,thesized,synergistic,modification,H3PW12O40,HPW,by,walled,func,tionalized,sidewall,hydroxyl,groups,gel,freshly,prepared,characterized,several,methods,catalytic,activity,stability,were,studied,Results,showed,that,highest,conversion,mass,maintained,after,six,cycles,can,attributed,strong,because,facilitate,formation,large,number,sites,Therefore,reduction,due,fact,hydration,reaction,its,effectively,reduced,efficient,economical,shows,good
AB值：
0.42928
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
