欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
实验采用共沉淀法制备铈掺杂铁锰氧化物脱硝催化剂,对催化剂进行了XRD,TPR和比表面积表征和测试,并对不同铈含量的催化剂进行脱硝性能研究.结果表明,催化剂中添加氧化铈后无规则和非晶态粒子增多,催化剂的低温还原能力有所增强.当稀土氧化物添加量在1%～10%之间时,比表面积呈现递增趋势,添加6%氧化铈的催化剂孔容最大.脱硝实验表明,铈含量增大提高了催化剂在低温区脱硝活性.在500℃以后,随温度的继续增高,催化剂的NOx脱除率开始降低.
英文摘要：
Ce promoted Fe-Mn metal oxides nanosized particles have been prepared by co-precipitation approach.The products were characterized by powder X-ray diffraction（XRD）,temperature programmed reduction（TPR） and BET study.It was found that the samller crystal size of iorn-manganese oxide can be achieved through CeO2 doping.And samples prepared with Ce pormoted show higher surface areas at calcinations temperature.At the reaction temperature range of 200 ℃-400 ℃,the Ce promoted samples exhibited much better activities for SCR.But at high temperatures,the Ce promoted catalysts showed lower activities for SCR of nitric oxide with ammonia.
同期刊论文项目
同项目期刊论文
期刊信息
位置：