Next Article in Journal
Dispersion of Defects in TiO2 Semiconductor: Oxygen Vacancies in the Bulk and Surface of Rutile and Anatase
Next Article in Special Issue
Immobilization of Cellulolytic Enzymes in Mesostructured Silica Materials
Previous Article in Journal
Influence of TiO2 Morphology and Crystallinity on Visible-Light Photocatalytic Activity of TiO2-Bi2O3 Composite in AOPs
Open AccessArticle

Low-Temperature Selective Catalytic Reduction of NOx on MnO2 Octahedral Molecular Sieves (OMS-2) Doped with Co

by Laichao Li 1, Yusi Wang 2,*, Li Zhang 2, Yuxi Yu 1 and Hanbing He 2,3,*
1
Fujian Key Laboratory of Advanced Materials, Department of Materials and Engineering, College of Materials, Xiamen, Fujian 361005, China
2
School of Metallurgy and Environment, Central South University, Changsha 410083, China
3
Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Anhui University of Technology), Ministry of Education, Ma’anshan 243002, China
*
Authors to whom correspondence should be addressed.
Catalysts 2020, 10(4), 396; https://doi.org/10.3390/catal10040396
Received: 4 March 2020 / Revised: 26 March 2020 / Accepted: 29 March 2020 / Published: 3 April 2020
(This article belongs to the Special Issue Porous Materials and Catalysts)
To improve NO conversion and sulfur resistance of low-temperature NO-CO selective catalytic reduction (SCR), it is urgent to seek new catalyst materials. Herein, using the pre-doping method, Cox-OMS-2 with different ratios of cobalt (Co) was obtained during hydrothermal synthesis of OMS-2 molecular sieves (where x represents the doping ratio of Co, i.e., x = 0.1, 0.2, 0.3, 0.4). Co was found to very efficiently intercalate into the crystal structure of OMS-2. Co and Mn work together to promote the selective reduction reaction of NOx;; the NO conversion of Co0.3-OMS-2 was the highest among all samples. Specifically, NO conversion at 50 °C increased from 72% for undoped OMS-2 to 90% for Co0.3-OMS-2. Moreover, due to the incorporation of Co, the latter also showed better sulfur resistance. View Full-Text
Keywords: denitrification; CO-SCR; OMS-2; sulfur resistance; cobalt doping denitrification; CO-SCR; OMS-2; sulfur resistance; cobalt doping
Show Figures

Graphical abstract

MDPI and ACS Style

Li, L.; Wang, Y.; Zhang, L.; Yu, Y.; He, H. Low-Temperature Selective Catalytic Reduction of NOx on MnO2 Octahedral Molecular Sieves (OMS-2) Doped with Co. Catalysts 2020, 10, 396.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop