详细信息

CuO-ZnO-ZrO_2的柠檬酸燃烧法制备及其催化CO_2加氢合成甲醇的性能    

Preparation of CuO-ZnO-ZrO_2 by Citric Acid Combustion Method and Its Catalytic Property for Methanol Synthesis from CO_2 Hydrogenation

文献类型:期刊文献

中文题名:CuO-ZnO-ZrO_2的柠檬酸燃烧法制备及其催化CO_2加氢合成甲醇的性能

英文题名:Preparation of CuO-ZnO-ZrO_2 by Citric Acid Combustion Method and Its Catalytic Property for Methanol Synthesis from CO_2 Hydrogenation

作者:郭晓明[1,2];毛东森[2];卢冠忠[1,2];王嵩[2]

机构:[1]华东理工大学工业催化研究所,上海200237;[2]上海应用技术学院应用催化研究所,上海200235

年份:2012

卷号:28

期号:1

起止页码:170

中文期刊名:物理化学学报

外文期刊名:Acta Physico-Chimica Sinica

收录:CSTPCD;;Scopus;北大核心:【北大核心2011】;CSCD:【CSCD2011_2012】;

基金:The project was supported by the Science and Technology Commission of Shanghai Municipality, China (08520513600), Leading Academic Discipline Project of Shanghai Education Committee, China (J51503), and Science and Technology Development Fund of Shanghai Institute of Science and Technology, China (KJ2010-05).

语种:中文

中文关键词:燃烧合成;柠檬酸;CuO-ZnO-ZrO2;二氧化碳加氢;甲醇

外文关键词:Combustion synthesis; Citric acid; CuO-ZnO-ZrO2; CO2 hydrogenation; Methanol

摘要:采用柠檬酸燃烧法制备了CuO-ZnO-ZrO2(CZZ)催化剂,并将其用于CO2加氢合成甲醇反应.按推进剂化学原理对燃烧反应进行了分析,并采用热重-差热分析(TG-DTA)技术记录了其燃烧行为.采用X射线衍射(XRD)、氮吸附、程序升温还原(TPR)及氧化亚氮(N2O)反应吸附技术对制得的催化剂进行了表征.结果表明:柠檬酸燃烧法的燃烧过程比较温和,燃料用量对催化剂物化和催化性能的影响不大,并结合燃烧反应的特点进行了解释.此外,还对三种燃料(柠檬酸、尿素和甘氨酸)的用量与CZZ性能之间的关系进行了比较,表明柠檬酸作燃料具有更好的工艺可控性.柠檬酸燃烧法是一种简单、快速且有效的制备CZZ催化剂的方法.
CuO-ZnO-ZrO2 (CZZ) catalysts for methanol synthesis from CO2 hydrogenation were prepared by a citric acid combustion method.The combustion reactions were analyzed in terms of propellant chemistry and the combustion behavior was recorded by thermo-gravimetric/differential thermal analysis (TG-DTA).The as-prepared CZZ powders were investigated with X-ray diffraction (XRD),N2 adsorption,temperature-programmed reduction (TPR),and reactive N2O adsorption techniques and the catalytic activities were evaluated for methanol synthesis from CO2 hydrogenation.The results show that the influence of citric acid quantity on the physicochemical and catalytic properties of CZZ is subtle,and the reason is related to the characteristics of the combustion reaction.Furthermore,the relationship between the quantity of fuel (citric acid,urea,and glycine) and the properties of the catalysts was determined.The citric acid combustion method exhibits better controllability and it is a simple,fast,and valuable route for the preparation of the CZZ catalyst for methanol synthesis from CO2 hydrogenation.

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