铜锰复合氧化物催化剂上甲苯的催化燃烧

doi:10.11949/j.issn.0438-1157.20151864

化工学报 ›› 2016, Vol. 67 ›› Issue (7): 2832-2840.DOI: 10.11949/j.issn.0438-1157.20151864

• 催化、动力学与反应器 • 上一篇下一篇

铜锰复合氧化物催化剂上甲苯的催化燃烧

顾欧昀¹, 廖永涛¹, 陈锐杰¹, 贾璐², 龟山秀雄², 林益³, 周吕¹, 马华¹, 郭燏¹

1. 南京工业大学化工学院材料化学工程国家重点实验室, 江苏南京 210009;
2. 东京农工大学化学工学科, 日本东京 184-8588;
3. 宁波德普福斯特净化器有限公司, 浙江宁波 315613

收稿日期:2015-12-09 修回日期:2016-04-08 出版日期:2016-07-05 发布日期:2016-07-05
通讯作者: 郭燏
基金资助:
国家自然科学基金项目（21403108）；江苏高校优势学科建设工程项目（PAPD）。

Catalytic combustion of toluene over Cu-Mn mixed oxide catalyst

GU Ouyun¹, LIAO Yongtao¹, CHEN Ruijie¹, JIA Lu², KAMEYAMA Hideo², LIN Yi³, ZHOU Lü¹, MA Hua¹, GUO Yu¹

1. State Key Laboratory of Materials-oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu, China;
2. Department of Chemical Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan;
3. Ningbo Depu Catalyst Co., Ltd., Ningbo 315613, Zhejiang, China

Received:2015-12-09 Revised:2016-04-08 Online:2016-07-05 Published:2016-07-05
Supported by:
supported by the National Natural Science Foundation of China (21403108) and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).

摘要/Abstract

摘要：

采用碳酸盐共沉淀法在全范围内制备了一系列具有高比表面积的铜锰互相掺杂的复合氧化物，通过调变铜锰摩尔比考察了其在甲苯催化燃烧反应中的表现。铜锰复合氧化物催化剂，尤其是掺杂低浓度铜的氧化锰，在甲苯催化燃烧中表现出了超越单组分氧化物的性能。随掺杂量的变化，反应活性呈现火山状的趋势。XRD、H₂-TPR、XPS及BET等表征结果显示氧化物粒子的结晶度及分散度、催化剂的可还原性、表面氧浓度、催化剂的比表面积等诸多因素均对催化活性产生了一定的影响，然而复合氧化物催化性能上升的根本原因在于铜物种和锰物种之间存在的较强的相互协同作用。

关键词: 甲苯, 催化燃烧, 铜, 锰, 复合金属氧化物, 催化剂, 活性, 数值分析

Abstract:

A series of copper manganese mixed oxide catalysts Cu₁_-xMn_x (x 0—1.0) with high surface area were synthesized by using carbonate co-precipitation method and their performance in catalytic combustion reaction of toluene was investigated by varying the mole ratio of Cu and Mn. XRD, H₂-TPR, XPS and N₂ adsorption/ desorption were used to characterize the structure and textural properties of catalysts. The resulting Cu₁_-xMn_x catalyst showed higher catalytic activity than mono-metal oxide catalyst, especially when a small amount of copper was doped into manganese oxide. With increasing the manganese content from 0 to 1.0, a volcanic tendency for catalytic activity was observed. Results of catalyst characterization revealed that the promoted catalytic activity can be associated with some interrelated factors, such as depressed crystallinity, highly dispersed oxide species onto the other, easier catalyst reducibility, more surface oxygen and enhanced surface area. It was difficult to attribute the promoted catalytic activity only to a single and specific factor. A synergistic effect between manganese and copper species was considered to be the most intrinsic reason.

Key words: toluene, catalytic combustion, copper, manganese, mixed metal oxides, catalyst, reactivity, numerical analysis

中图分类号:

TQ032
O643

顾欧昀, 廖永涛, 陈锐杰, 贾璐, 龟山秀雄, 林益, 周吕, 马华, 郭燏. 铜锰复合氧化物催化剂上甲苯的催化燃烧[J]. 化工学报, 2016, 67(7): 2832-2840.

GU Ouyun, LIAO Yongtao, CHEN Ruijie, JIA Lu, KAMEYAMA Hideo, LIN Yi, ZHOU Lü, MA Hua, GUO Yu. Catalytic combustion of toluene over Cu-Mn mixed oxide catalyst[J]. CIESC Journal, 2016, 67(7): 2832-2840.

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铜锰复合氧化物催化剂上甲苯的催化燃烧

Catalytic combustion of toluene over Cu-Mn mixed oxide catalyst

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