Ce-Mn coordination polymer derived hierarchical/porous structured CeO2-MnOx for enhanced catalytic properties

Feng，Junwei1; Wang，Yong2; Gao，Daowei1; Kang，Baotao1; Li，Shun3; Li，Chunsheng1; Chen，Guozhu4

2020-08-06

10.1039/d0nr03028g

Nanoscale   影响因子和分区

2040-3364

2040-3372

Catalytic performance is largely dependent on how the structures/compositions of materials are designed. Herein, CeO2-MnOx binary oxide catalysts with a hierarchical/porous structure are prepared by a facile and efficient method, which involves the preparation of the hierarchical Ce-Mn coordination polymer (CPs) precursor, followed by a thermal treatment step. The obtained CeO2-MnOx catalysts not only well inherit the hierarchical structure of Ce-Mn CPs, but also possess porous and hollow features due to the removal of organic ligands and heterogeneous contraction during the calcination process. In addition, the effect of the Mn/Ce ratio is also studied to optimize catalytic performance. Specifically, the as-prepared CeO2-MnOx (5 : 5) catalyst exhibits excellent catalytic performance toward CO oxidation and selective catalytic reduction (SCR) of NO with NH3 at low temperatures. Based on the characterization results, we propose that the special hierarchical structure, high surface area, strong synergistic interaction between CeO2 and MnOx, and high content of active Ce3+, Mn4+ and Osurf are collectively responsible for its remarkable catalytic performance.

SCI ; EI

英语

其他

National Natural Science Foundation of China[21878121] ; Natural Science Foundation of Shandong Province[ZR2018MB004] ; Shenzhen Science and Technology Innovation Committee[JCYJ20180504165648211]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied

WOS:000558928800037

ROYAL SOC CHEMISTRY

20204309385960

Ammonia ; Binary alloys ; Selective catalytic reduction ; Catalysts ; Manganese oxide ; Catalytic oxidation

Air Pollution Control:451.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2

2-s2.0-85089206420

Scopus

1.School of Chemistry and Chemical Engineering,University of Jinan,250022,China
2.Institut National de la Recherche Scientifique,Varennes,1650 Boulevard Lionel Boulet,Canada
3.Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China. and Foshan (Southern China) Institute for New Materials, Foshan, 528200, Guangdong, China
4.School of Chemistry and Chemical Engineering,University of Jinan,250022,China

Feng，Junwei,Wang，Yong,Gao，Daowei,et al. Ce-Mn coordination polymer derived hierarchical/porous structured CeO2-MnOx for enhanced catalytic properties[J]. Nanoscale,2020,12(30):16381-16388.

Feng，Junwei.,Wang，Yong.,Gao，Daowei.,Kang，Baotao.,Li，Shun.,...&Chen，Guozhu.(2020).Ce-Mn coordination polymer derived hierarchical/porous structured CeO2-MnOx for enhanced catalytic properties.Nanoscale,12(30),16381-16388.

Feng，Junwei,et al."Ce-Mn coordination polymer derived hierarchical/porous structured CeO2-MnOx for enhanced catalytic properties".Nanoscale 12.30(2020):16381-16388.