载体涂层对负载型NiMnO3钙钛矿催化剂催化燃烧VOCs性能的影响

doi:10.16085/j.issn.1000-6613.2017.01.027

化工进展 ›› 2017, Vol. 36 ›› Issue (01): 210-215.DOI: 10.16085/j.issn.1000-6613.2017.01.027

载体涂层对负载型NiMnO₃钙钛矿催化剂催化燃烧VOCs性能的影响

邓磊^1,2, 李兵^1,2, 阚家伟^1,2, 黄超^1,2, 黄琼³, 沈树宝^1,2, 祝社民^2,4, 陈英文^1,2

1 南京工业大学生物与制药工程学院, 江苏南京 210009;
2 南京工业大学材料化学工程国家重点实验室, 江苏南京 210009;
3 南京信息工程大学江苏省环境净化材料工程技术研究中心, 江苏南京 210044;
4 南京工业大学材料科学与工程学院, 江苏南京 210009

收稿日期:2016-04-14 修回日期:2016-08-18 出版日期:2017-01-05 发布日期:2017-01-05
通讯作者: 陈英文,副教授,主要从事大气污染处理技术及环保工程材料开发与应用。E-mail:ywchen@njtech.edu.cn。
作者简介:邓磊(1992-),男,硕士研究生。E-mail:maildyx@163.com。
基金资助:
国家自然科学基金（51172107，51608261）、江苏省高校自然科学研究项目（14KJB430014）、江苏省科技厅重点研发计划（BE2016769）及江苏省环境净化材料工程技术研究中心（ECM）开放课题（KFK1503）项目。

Effect of support coating on the catalytic performance of supported NiMnO₃ perovskite catalysts

DENG Lei^1,2, LI Bing^1,2, KAN Jiawei^1,2, HUANG Chao^1,2, HUANG Qiong³, SHEN Shubao^1,2, ZHU Sheming^2,4, CHEN Yingwen^1,2

1 College of Biological and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu, China;
2 State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu, China;
3 Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials, Nanjing University of Information Science & Technology, Nanjing 210044, Jiangsu, China;
4 College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu, China

Received:2016-04-14 Revised:2016-08-18 Online:2017-01-05 Published:2017-01-05

摘要/Abstract

摘要： 以堇青石蜂窝陶瓷为载体，Ni（NO₃）₂·6H₂O、Mn（NO₃）₂为原料，通过柠檬酸法制得NiMnO₃钙钛矿催化剂，考察载体涂层对催化燃烧VOCs反应性能的影响，并采用X射线衍射仪（XRD）、扫描电镜（SEM）、比表面积分析仪（BET）、氢气程序升温还原（H₂-TPR）进行表征分析。实验结果表明：不同的涂层对负载型NiMnO₃钙钛矿催化剂的影响具有不同的效果。其中，Ce_0.75Zr_0.25O₂涂层有助于提高载体的比表面积，提供更多的活性位点，并且使负载型NiMnO₃钙钛矿催化剂的活性组分分散更加均匀，晶粒尺寸更小，提高了活性组分的高温稳定性。同时，Ce_0.75Zr_0.25O₂涂层与NiMnO₃钙钛矿之间具有的协调作用能提高反应的Redox循环速率，进而提高催化剂的催化性能。

关键词: NiMnO₃钙钛矿, 催化作用, 催化剂, 催化载体, 涂层

Abstract: NiMnO₃ perovskite catalysts supported on cordierite honeycomb were synthesized by the citric acid method using Ni(NO₃)2·6H₂O and Mn(NO₃)2. The effect of the coating on the catalytic performance of VOCs in catalytic combustion was investigated. These catalysts were characterized by XRD,SEM,BET,and H₂-TPR. The results indicate that the different coating has different effects on the NiMnO₃ perovskite catalysts. The Ce_0.75Zr_0.25O₂ coating helps to improve carrier's specific surface area and the active ingredient's high temperature stability,and the load is more uniformly dispersed,while the grain size becomes smaller. At the same time,the synergistic effect between Ce_0.75Zr_0.25O₂ coating and NiMnO₃ perovskite catalysts can improve the Redox cycle rate of the reaction,and further improve the catalytic performance of the catalysts.

Key words: NiMnO₃ perovskite, catalysis, catalyst, catalyst support, coating

中图分类号:

TQ630.9

邓磊, 李兵, 阚家伟, 黄超, 黄琼, 沈树宝, 祝社民, 陈英文. 载体涂层对负载型NiMnO₃钙钛矿催化剂催化燃烧VOCs性能的影响[J]. 化工进展, 2017, 36(01): 210-215.

DENG Lei, LI Bing, KAN Jiawei, HUANG Chao, HUANG Qiong, SHEN Shubao, ZHU Sheming, CHEN Yingwen. Effect of support coating on the catalytic performance of supported NiMnO₃ perovskite catalysts[J]. Chemical Industry and Engineering Progree, 2017, 36(01): 210-215.

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载体涂层对负载型NiMnO₃钙钛矿催化剂催化燃烧VOCs性能的影响

Effect of support coating on the catalytic performance of supported NiMnO₃ perovskite catalysts

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