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NH3-TPD法表征固体催化剂的酸性
Characterization of the surface acidity of solid catalysts with ammonia temperature-programmed desorption
【摘要】 采用NH3-TPD法,利用FINESORB-3010程序升温化学吸附仪测定固体催化剂表面酸性。研究样品量、样品的预处理、炉温和程序升温速率、反应气和载气流速、桥电流设置以及气体选择等对测定固体催化剂酸性的影响。
【Abstract】 Ammonia temperature-programmed desorption technique(NH3-TPD) is used for the characterization of surface acidity of solid catalyst via FINESORB-3010 Chemisorption Analyzer.The effects of some parameters such as sample quantity and pre-treatment,furnace temperature and temperature-programmed rate,the reaction gas and carrier gas flow rate,bridge current,chosen gas on the acidity of solid catalyst,are studied in detail.
【关键词】 程序升温脱附法;
固体催化剂;
酸性;
【Key words】 ammonia temperature-programmed desorption; solid catalyst; acidity;
【Key words】 ammonia temperature-programmed desorption; solid catalyst; acidity;
- 【文献出处】 长春工业大学学报(自然科学版) ,Journal of Changchun University of Technology(Natural Science Edition) , 编辑部邮箱 ,2013年03期
- 【分类号】O643.36
- 【被引频次】20
- 【下载频次】1429