富H2/CO2气氛下CuO-NiO/CeO2催化CO-PROX性能的研究OA北大核心CSTPCD
Study on the catalytic performance of CO-PROX catalyzed by CuO-NiO/CeO2 in H2/CO2 rich atmosphere
采用分步浸渍法制备CuO-NiO/CeO2催化剂,通过XRD、BET、H2-TPR、Raman和XPS手段对催化剂进行表征,探究NiO-CeO2前驱体焙烧温度对催化剂物化性质及富H2/CO2气氛下CO选择性氧化性能的影响.结果表明,前驱体焙烧温度主要影响催化剂的还原性能和氧空位的含量.当焙烧温度为500 ℃时,催化剂中氧空位的含量较高,其催化性能较好.在反应温度为130 ℃,氧过量系数为1.2,空速为20266 mL/(g·h)时,CO转化率为95.9％,CO氧化选择性为86.3％.
The CuO-NiO/CeO2 catalyst was prepared by step impregnation method.The catalyst was characterized by XRD,BET,H2-TPR,Raman and XPS,and the effects of the calcination temperature of NiO-CeO2 precursor on the physicochemical properties of the catalyst and the selective oxidation of CO in H2/CO2 rich atmosphere were investigated.The results showed that the precursor calcination temperature mainly affected the reduction performance and oxygen vacancy content of the catalyst.When the calcination temperature is 500 ℃,the content of oxygen vacancy in the catalyst is higher,and the catalytic performance is better.When the reaction temperature is 130 ℃,the oxygen excess coefficient is 1.2,and the air speed is 20266 mL/(g·h),the CO conversion rate is 95.9％,and the CO oxidation selectivity is 86.3％.
曹栋梁;刘姝;姜雅新;韩蛟;张财顺;王宏浩;侯晓宁;张磊;高志贤
辽宁石油化工大学石油化工学院,辽宁抚顺 113001辽宁石油化工大学石油化工学院,辽宁抚顺 113001||北京中医药大学东方学院医学检验技术学院,河北沧州 061108山西师范大学化学与材料科学学院,山西太原 030000
化学
焙烧温度CuO-NiO/CeO2CO-PROX氧空位
calcination temperatureCuO-NiO/CeO2CO-PROXoxygen vacancy
《燃料化学学报（中英文）》 2024 (004)
577-585 / 9
The project was supported by National Natural Science Foundation of China(22379059),Applied Basic Research Program Project of Liaoning Province(2023JH2/101300224),Service Local Project of the Education Department of Liaoning Province(Enlisting and Leading)(LJKFZ20220201),General Project of the Educational Department of Liaoning Province(LJKMZ20220728)and Fundamental Research Program(Free Exploration)of Shanxi Province(20210302124338).国家自然科学基金(22379059),辽宁省应用基础研究计划项目(2023JH2/101300224),辽宁省教育厅服务地方项目(揭榜挂帅)(LJKFZ20220201),辽宁省教育厅面上项目(LJKMZ20220728)和山西省应用基础研究青年基金项目(20210302124338)资助
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