The study of catalytic decomposition of N2O over Cu-Co-M(M=Fe, Mn, Ni, Zn, Ce)

doi:10.16085/j.issn.1000-6613.2016.11.020

Chemical Industry and Engineering Progress ›› 2016, Vol. 35 ›› Issue (11): 3519-3523.DOI: 10.16085/j.issn.1000-6613.2016.11.020

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The study of catalytic decomposition of N₂O over Cu-Co-M(M=Fe, Mn, Ni, Zn, Ce)

DING Lin, CAO Yulai, SONG Yongji, LI Cuiqing, REN Xiaoguang, WANG Hong

College of Chemcal Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China

Received:2016-02-22 Revised:2016-04-11 Online:2016-11-05 Published:2016-11-05

Co-Cu-M（M=Fe，Mn，Ni，Zn，Ce）催化剂催化分解N₂O性能

丁林, 曹雨来, 宋永吉, 李翠清, 任晓光, 王虹

北京石油化工学院化学工程学院, 北京 102617

通讯作者: 宋永吉,教授,博士生导师,主要从事催化剂研究。E-mail:songyongji@bipt.edu.cn。
作者简介:丁林(1990-),男,硕士研究生。E-mail:565761413@qq.com。
基金资助:
国家自然科学基金重点投资项目（21076025）。

Abstract

Abstract: Catalysts of Co-Cu composite oxides doped with metals cocatalysts were prepared using the impregnation method and their activity in the catalytic decomposition of N₂O were tested. The results showed that the catalytic activity of Co-Cu composite oxide was largely enhanced by the addition of rare earth Ce and transition metal Fe. XRD, BET, SEM, and H₂-TPR were used to characterize the Cu-Co composite oxide catalysts, and the results showed that the addition of the cocatalyst did not change the catalysts' crystal structures, but did enhance the reduction ability of the Co and Cu ions. The reduction peaks even shifted to the low temperature region after adding Ce and Fe, and therefore the catalytic activity for the decomposition of N₂O was improved.

Key words: nitrous oxide, catalytic decomposition, impregnation, composite oxide

摘要： 采用等体积浸渍法制备了添加不同金属助剂的铜钴复合氧化物（Co/Cu质量比为0.6）催化剂，考察了其催化N₂O分解的活性。结果表明，稀土金属Ce以及过渡金属Fe对钴铜催化剂催化N₂O分解的活性有明显的促进作用。通过分析催化剂的X射线衍射（XRD）、比表面积测定（BET）、氢气程序升温还原（H₂-TPR）以及扫描电镜（SEM）等表征结果发现，助剂的添加并没有引起催化剂晶相结构的明显改变，但可以提高钴离子与铜离子的还原能力。尤其是添加Ce和Fe之后还原峰向低温区显著移动，从而提高了钴铜复合氧化物催化剂的活性。

关键词: 氧化亚氮, 催化分解, 浸渍法, 复合氧化物

CLC Number:

TQ131.2

DING Lin, CAO Yulai, SONG Yongji, LI Cuiqing, REN Xiaoguang, WANG Hong. The study of catalytic decomposition of N₂O over Cu-Co-M(M=Fe, Mn, Ni, Zn, Ce)[J]. Chemical Industry and Engineering Progress, 2016, 35(11): 3519-3523.

丁林, 曹雨来, 宋永吉, 李翠清, 任晓光, 王虹. Co-Cu-M（M=Fe，Mn，Ni，Zn，Ce）催化剂催化分解N₂O性能[J]. 化工进展, 2016, 35(11): 3519-3523.

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The study of catalytic decomposition of N₂O over Cu-Co-M(M=Fe, Mn, Ni, Zn, Ce)

Co-Cu-M（M=Fe，Mn，Ni，Zn，Ce）催化剂催化分解N₂O性能

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