摘要
该文设计了锆掺杂介孔氧化铝的制备、表征及其苯酚羟基化反应性能的研究性综合设计型实验。对实际工业应用中催化剂高成本、低活性等问题展开研究,通过溶剂蒸发诱导自组装(EISA)法一步制备了锆掺杂的介孔氧化铝材料;采用X射线衍射仪、氮气吸附脱附仪、高分辨透射电子显微镜等对其物相性质、结构特征进行系统表征;通过苯酚羟基化反应过程来考察其催化反应活性,并利用重复性实验来研究其反应稳定性。本实验针对性强、设计新颖、操作简单,实验内容涵盖材料合成、结构表征、催化性能等多个知识点。教学实践表明,该综合研究实验能够全面培养学生的综合素质和创新能力,有助于学生建立对实验室实验到实际工业生产过程的认识。
In this paper,the research-based comprehensive experiment on the synthesis and characterization of Zr-doped mesoporous alumina and its phenol hydroxylation performance are designed,and the problems of high cost and low activity of catalyst in practical industrial application are studied.This experiment is focused on the issues of the catalysts with high-cost and low-activity in the practical industrial application,and thus the Zr-doped mesoporous alumina is synthesized in a one-step method of evaporation induced self-assembly(EISA).The phase and structural properties of the obtained samples are characterized through XRD,N2 adsorption-desorption and HRTEM.The catalytic performances of the obtained samples are investigated by the phenol hydroxylation reaction,and the catalytic stability of the target sample is also performed by the recycling tests.This experiment has strong pertinence,novel design and simple operation.The experimental content covers many knowledge points,such as material synthesis,structural characterization,catalytic performance and so on.The teaching practice shows that the research-based comprehensive experiment can cultivate the students’comprehensive quality and innovation ability,and help them to establish the understanding of the laboratory experiment to the actual industrial production process.
作者
王泳娟
周钰明
贺强
WANG Yongjuan;ZHOU Yuming;HE Qiang(Jiangsu Optoelectronic Functional Materials and Engineering Laboratory,School of Chemistry and Chemical Engineering,Southeast University,Nanjing 211189,China)
出处
《实验技术与管理》
CAS
北大核心
2020年第12期80-83,共4页
Experimental Technology and Management
基金
江苏省自然科学基金(BK20180366)。
关键词
综合型实验
金属掺杂
介孔氧化铝
溶剂蒸发诱导自组装
苯酚羟基化
comprehensive experiment
metal doping
mesoporous alumina
evaporation induced self-assembly
phenol hydroxylation
