Effect of Potassium Nitrate Modification on the Performance of Copper-Manganese Oxide Catalyst for Enhanced Soot Combustion

doi:10.1002/cctc.201701735

	Effect of Potassium Nitrate Modification on the Performance of Copper-Manganese Oxide Catalyst for Enhanced Soot Combustion
	Zhao, Han 1; Zhou, Xiaoxia ; Huang, Weimin ; Pan, Linyu 1; Wang, Min 1; Li, Qinru ; Shi, Jianlin 2; Chen, Hangrong 2
刊名	CHEMCATCHEM
	2018
卷号	10 期号:6 页码:1455
关键词	copper environmental chemistry heterogeneous catalysis manganese potassium
ISSN号	1867-3880
DOI	10.1002/cctc.201701735
英文摘要	An enhanced catalytic activity and improved reusability were achieved by applying facile KNO3 modification during the synthesis of a copper-manganese mixed oxide (CuMnO). Upon KNO3 modification, the characteristic finishing temperature (T-f) of catalytic soot combustion was decreased from 360 degrees C for CuMnO to 338 degrees C for the K-modified product CuMnO(K). Moreover, this T-f value for CuMnO(K) remained remarkably low (346 degrees C) even after five runs of an activity test. The excellent performance of CuMnO(K) is attributed to its well-dispersed nanoparticle morphology, which is totally different from the microspherical features of CuMnO and is beneficial for its sufficient contact with the soot particles. Additionally, an interesting phase evolution of CuMnO(K) was observed for the first time from Cu1.5Mn1.5O4 to the mixed phases of CuO, K2Mn4O8, and MnOx during the consecutive test runs. These mixed phases are believed to be responsible for the enhancement and stabilization of the catalytic activity. Furthermore, the mechanism for the morphology transformation upon KNO3 modification and for the phase evolution during soot combustion was investigated.
学科主题	Chemistry, Physical
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000428375400032
资助机构	This research was sponsored by the National Natural Science Foundation of China (51225202, 51502330) and Shanghai International Cooperation Project (16520710200). ; This research was sponsored by the National Natural Science Foundation of China (51225202, 51502330) and Shanghai International Cooperation Project (16520710200).
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25083]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Ding Xi Rd, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Nanjing 210000, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Han,Zhou, Xiaoxia,Huang, Weimin,et al. Effect of Potassium Nitrate Modification on the Performance of Copper-Manganese Oxide Catalyst for Enhanced Soot Combustion[J]. CHEMCATCHEM,2018,10(6):1455, 1463.
APA	Zhao, Han.,Zhou, Xiaoxia.,Huang, Weimin.,Pan, Linyu.,Wang, Min.,...&Chen, Hangrong.(2018).Effect of Potassium Nitrate Modification on the Performance of Copper-Manganese Oxide Catalyst for Enhanced Soot Combustion.CHEMCATCHEM,10(6),1455.
MLA	Zhao, Han,et al."Effect of Potassium Nitrate Modification on the Performance of Copper-Manganese Oxide Catalyst for Enhanced Soot Combustion".CHEMCATCHEM 10.6(2018):1455.