整装式Ag@SiO_(2)-Co_(3)O_(4)催化剂高效微量乙烯催化脱除及动力学研究  

Monolithic Ag@SiO_(2)-Co_(3)O_(4)Catalyst for Efficient Catalytic Removal of Trace Ethylene and Its Kinetics Study

作　　者：刘智明 孙梦丹 席雨洋 朱宇博 徐彤 张巧飞 王鹏伟 Liu Zhiming;Sun Mengdan;Xi Yuyang;Zhu Yubo;Xu Tong;Zhang Qiaofei;Wang Pengwei(College of Chemistry and Chemical Engineering,He'nan University of Technology,He'nan,450001;School of Resources and Environmental Engineering,Shanghai Polytechnic University,Shanghai,201209)

机构地区：[1]河南工业大学化学化工学院,河南450001 [2]上海第二工业大学资源与环境工程学院,上海201209

出　　处：《当代化工研究》2023年第11期99-102,共4页Modern Chemical Research

基　　金：国家自然科学基金青年基金“整装‘泡沫/纤维@氧化物-贵金属’核-壳结构催化剂的‘Top-Down’一体化设计合成:乙烯室温催化燃烧构效研究及过程强化”(项目编号:21707028);国家自然科学基金青年基金“低温甲烷氧化偶联制乙烯:复合氧化物改性Mn-Na-W/SiO2催化剂的制备及其催化性能研究”(项目编号:21902100);河南工业大学高层次人才科研基金项目“核-壳结构燃烧催化剂设计合成及其构效研究”(项目编号:2019B3059);河南工业大学青年骨干教师培养计划。

摘　　要：作为一种气体植物激素和大气污染物,微量乙烯的催化燃烧脱除具有重要意义。以三维网状结构的铝纤维片(Al-fiber)作为骨架基体,借助水溶性硅烷偶联剂(4-二乙氧基甲基甲硅烷基丁胺)的双向桥联作用,实现整装式Ag@SiO_(2)-Co_(3)O_(4)/Al-fiber类核-壳结构催化剂的宏-微-纳一体化组装。通过催化剂对比实验和动力学实验表明,新颖制备方法所构建的Ag@SiO_(2)-Co_(3)O_(4)类核-壳结构能够显著降低表观活化能,提高催化性能。As a kind of gaseous plant hormone and atmospheric pollutant,the removal of trace ethylene via catalytic combustion is of great significance.Thin-sheets of Al-fiber with 3D network structure were employed as monolithic substrates.Monolithic Ag@SiO_(2)-Co_(3)O_(4)/Al-fiber catalyst with core-shell structure was prepared from nano-to macro-scale by the self-assembly method with the aid of the bidirectional bridging of water-soluble silane coupling agent(4-(diethoxymethylsilyl)-butanamine).The comparative tests and kinetic experiments indicated that the resulting Ag@SiO_(2)-Co_(3)O_(4) core-shell structures derived from novel preparation procedures can obviously lower the apparent activation energy,thus promoting catalytic performance.

关 键 词：乙烯 催化燃烧 铝纤维 硅烷偶联剂 结构化催化剂 动力学 

分 类 号：TQ03[化学工程]