Structural properties and low-temperature NH3-SCR activity of CeO2-MnOx mixed oxides catalyst in the microwave field - Details

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Abstract：

The　NH3-SCR　technology,　based　on　CeO2-MnOx　catalysts,　is　of　great　significance　for　NOx　removal　at　low　temperatures.　Microwave　irradiation,　as　an　effective　heating　approach,　can　enhance　the　low-temperature　NH3-SCR　activity　of　catalysts.　Herein,　the　structure-activity　relationship　of　CeO2-MnOx　oxides　catalysts　was　explored　under　microwave　irradiation.　The　MnOx　catalyst　and　Ce-Mn(1:1)　mixed　oxide　catalyst　exhibited　good　low-temperature　de-NOx　performance　in　the　microwave　field.　With　the　increase　of　microwave　irradiation　intensity　and　time,　the　structure　and　phase　composition　of　MnOx　material　underwent　significant　changes.　CeO2　played　a　key　role　in　maintaining　the　structural　stability　of　the　Ce-Mn(1:1)　catalyst.　In　addition,　microwave　irradiation　affected　the　redox　properties　and　acidity　of　the　catalyst,　regulating　the　catalytic　performance.　Suitable　microwave　operation　conditions　were　conducive　to　increasing　the　number　of　acidic　sites　and　enhancing　the　redox　properties,　which　improved　the　low-temperature　catalytic　activity　of　the　catalyst.　©　2024　Elsevier　B.V.

Keyword：

Low-temperature NH3-SCR Microwave irradiation CeO2-MnOx oxides catalysts Structure properties

Author Community：

[ 1 ] [Song L.]Key Laboratory of Beijing on Regional Air Pollution Control, Beijing Key Laboratory for Green Catalysis and Separation, Beijing University of Technology, Beijing, 100124, China
[ 2 ] [Song L.]Beijing University of Technology, Beijing, 100124, China
[ 3 ] [Liu C.]Key Laboratory of Beijing on Regional Air Pollution Control, Beijing Key Laboratory for Green Catalysis and Separation, Beijing University of Technology, Beijing, 100124, China
[ 4 ] [Liu C.]Beijing University of Technology, Beijing, 100124, China
[ 5 ] [Bian C.]Key Laboratory of Beijing on Regional Air Pollution Control, Beijing Key Laboratory for Green Catalysis and Separation, Beijing University of Technology, Beijing, 100124, China
[ 6 ] [Bian C.]Beijing University of Technology, Beijing, 100124, China
[ 7 ] [Cheng X.]Key Laboratory of Beijing on Regional Air Pollution Control, Beijing Key Laboratory for Green Catalysis and Separation, Beijing University of Technology, Beijing, 100124, China
[ 8 ] [Cheng X.]Beijing University of Technology, Beijing, 100124, China
[ 9 ] [Li X.]Key Laboratory of Beijing on Regional Air Pollution Control, Beijing Key Laboratory for Green Catalysis and Separation, Beijing University of Technology, Beijing, 100124, China
[ 10 ] [Li X.]Beijing University of Technology, Beijing, 100124, China
[ 11 ] [Cheng Y.]Key Laboratory of Beijing on Regional Air Pollution Control, Beijing Key Laboratory for Green Catalysis and Separation, Beijing University of Technology, Beijing, 100124, China
[ 12 ] [Cheng Y.]Beijing University of Technology, Beijing, 100124, China
[ 13 ] [Li S.]Key Laboratory of Beijing on Regional Air Pollution Control, Beijing Key Laboratory for Green Catalysis and Separation, Beijing University of Technology, Beijing, 100124, China
[ 14 ] [Li S.]Beijing University of Technology, Beijing, 100124, China
[ 15 ] [Fan X.]Key Laboratory of Beijing on Regional Air Pollution Control, Beijing Key Laboratory for Green Catalysis and Separation, Beijing University of Technology, Beijing, 100124, China
[ 16 ] [Fan X.]Beijing University of Technology, Beijing, 100124, China
[ 17 ] [He H.]Key Laboratory of Beijing on Regional Air Pollution Control, Beijing Key Laboratory for Green Catalysis and Separation, Beijing University of Technology, Beijing, 100124, China
[ 18 ] [He H.]Beijing University of Technology, Beijing, 100124, China

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Source ：

Catalysis Today

ISSN： 0920-5861

Year： 2024

Volume： 437

5 . 3 0 0

JCR@2022

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SCOPUS Cited Count： 2

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 10

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