Ce-Ni-Mn-O复合氧化物催化剂催化燃烧苯的性能研究

功能材料, 2013, 44(10): 1457-1460. doi: 10.3969/j.issn.1001-9731.2013.10.019

Ce-Ni-Mn-O复合氧化物催化剂催化燃烧苯的性能研究

李兵 ^1, , 王志良 ^2, , 吴海锁 ^3, , 黄琼 ^4, , 严小康 ^5, , 陈英文 ^6, , 沈树宝 ^7,

1.南京工业大学生物与制药工程学院,江苏南京210009

2.江苏省环境科学研究院,江苏南京210036

3.江苏省环境科学研究院,江苏南京210036

4.南京工业大学生物与制药工程学院,江苏南京210009

5.南京工业大学生物与制药工程学院,江苏南京210009

6.南京工业大学生物与制药工程学院,江苏南京210009

7.南京工业大学生物与制药工程学院,江苏南京210009

基金项目: 国家科技支撑计划资助项目(2012BAE01B03) 教育部高等学校博士学科点专项科研基金资助项目(20113221110004) 2012年度江苏省研究生创新工程资助项目(CXLX12_0450) 江苏省环境工程重点实验室科研开放课题资助项目(KF2012001) 国家自然科学基金资助项目(51172107,21106072) 江苏省环保厅资助项目(2011023) 江苏省科技厅资助项目(BE2010196)

关键词： Ce-Ni-Mn-O复合氧化物 , 苯的催化氧化 , 堇青石

Catalytic performance of Ce-Ni-Mn-O mixed oxide for combustion of benzene

以堇青石蜂窝陶瓷为载体,以Ce(NO3)2、Ni(NO3)2和Mn(NO3)2为原料,采用柠檬酸浸渍法制备了负载型Ce-Ni-Mn-O复合氧化物催化剂,考察了Ce、Ni与Mn摩尔比、焙烧温度和焙烧时间对催化燃烧苯的性能影响,并采用比表面积分析仪(BET)、X射线衍射仪(XRD)、扫描电镜(SEM)对催化剂进行表征.实验结果表明,在系列催化剂中,n(Ce)/n (Ni)/n(Mn)=1∶0.5∶0.5,经500℃焙烧7h的催化剂表现出最佳的催化燃烧苯的活性,在300℃及体积空速为15000h-条件下,即可促使浓度为4.8g/m3的苯催化转化率达到91.8％.

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