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Journal of Nanomaterials
Volume 2017 (2017), Article ID 7901686, 10 pages
https://doi.org/10.1155/2017/7901686
Research Article

Reaction and Characterization of Low-Temperature Effect of Transition Nanostructure Metal Codoped SCR Catalyst

1State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Biogas Upgrading Utilization, China University of Petroleum, Beijing 102249, China
2Personalized Drug Therapy Key Laboratory of Sichuan Province, Hospital of the University of Electronic Science and Technology of China and Sichuan Provincial, People’s Hospital, Chengdu 610072, China
3Department of Chemical Engineering, West Virginia University, Morgantown, WV 26505, USA
4Chongqing Institute of Forensic Science, Chongqing 400021, China

Correspondence should be addressed to Quan Xu; nc.ude.puc@nauqux, Peng Pu; rf.liamtoh@gnepup, and Lulu Cai; moc.621@ululxzl

Received 24 January 2017; Accepted 28 February 2017; Published 20 September 2017

Academic Editor: Jinwei Gao

Copyright © 2017 Ke Yang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Typical p-type semiconductor MnO codoped with n-type semiconductors such as CeO2 and V2O5 was reported to achieve high efficiency in catalytic NO removal by NH3. In this paper, we present novel Mn-Ce codoped V2O5/TiO2 catalyst which exhibited an excellent NO conversion efficiency of 90% at 140°C. By using this codoped catalyst, the best low-temperature activity was greatly decreased when compared with single Mn- or Ce-doped catalyst. According to the characterization results from BET, XRD, and XPS, the codoped catalyst was composed of both CeO2 and amorphous Mn. The electron circulation formed between doping elements is believed to promote the electron transfer, which may be one of the reasons for excellent low-temperature denitration performance.