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Journal articles on the topic 'MnOx-CeO2 mixed oxides'

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Published: 28 May 2022
Last updated: 30 July 2025

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1

Gao, Yuxi, Xiaodong Wu, Shuang Liu, Duan Weng, and Rui Ran. "MnOx–CeO2 mixed oxides for diesel soot oxidation: a review." Catalysis Surveys from Asia 22, no. 4 (2018): 230–40. http://dx.doi.org/10.1007/s10563-018-9255-4.

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2

Lee, Eun Jun, Min June Kim, Jin Woo Choung, Chang Hwan Kim, and Kwan-Young Lee. "NOx-assisted soot oxidation based on Ag/MnOx-CeO2 mixed oxides." Applied Catalysis A: General 627 (October 2021): 118396. http://dx.doi.org/10.1016/j.apcata.2021.118396.

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3

Gao, Yuxi, Baofang Jin, Xiaodong Wu, Zhenguo Li, Rui Ran та Duan Weng. "Co-Precipitated Mn0.15Ce0.85O2−δ Catalysts for NO Oxidation: Manganese Precursors and Mn-Ce Interactions". Processes 10, № 12 (2022): 2562. http://dx.doi.org/10.3390/pr10122562.

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Two Mn0.15Ce0.85O2−δ mixed oxides were synthesized by a co-precipitation method using Mn(NO3)2 and KMnO4 as the manganese precursors, respectively. Structural analyses by X-ray powder diffraction and Raman spectroscopy reveal the formation of MnOx-CeO2 solid solutions. The Mn0.15Ce0.85O2−δ catalyst prepared from the high-valent manganese precursor exhibits higher activity for the catalytic oxidation of NO. The advantage of KMnO4 is related to the improved redox property of the catalyst as supported by H2 temperature-programmed reduction (TPR) and O2 temperature-programmed desorption (TPD). The
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4

La Greca, Eleonora, Tamara S. Kharlamova, Maria V. Grabchenko, et al. "Influence of Y Doping on Catalytic Activity of CeO2, MnOx, and CeMnOx Catalysts for Selective Catalytic Reduction of NO by NH3." Catalysts 13, no. 5 (2023): 901. http://dx.doi.org/10.3390/catal13050901.

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Novel yttrium-doped CeO2, MnOx, and CeMnOx composites are investigated as catalysts for low-temperature NH3-SCR. The study involves the preparation of unmodified oxide supports using a citrate method followed by modification with Y (2 wt.%) using two approaches, including the one-pot citrate method and incipient wetness impregnation of undoped oxides. The NH3-SCR reaction is studied in a fixed-bed quartz reactor to test the ability of the prepared catalysts in NO reduction. The gas reaction mixture consists of 800 ppm NO, 800 ppm NH3, 10 vol.% O2, and He as a balance gas at a WHSV of 25,000 mL
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5

Weiman, Li, Liu Haidi, and Chen Yunfa. "Mesoporous MnOx–CeO2 composites for NH3-SCR: the effect of preparation methods and a third dopant." RSC Advances 9, no. 21 (2019): 11912–21. http://dx.doi.org/10.1039/c9ra00731h.

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In this study, an optimal oxalate route was used to obtain nickel/cobalt doped MnOx–CeO<sub>2</sub> mixed oxides. Nickel doped MnOx–CeO<sub>2</sub> showed excellent NH<sub>3</sub>-SCR activity and H<sub>2</sub>O + SO<sub>2</sub> resistance.
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6

Tikhomirov, Kirill, Oliver Kröcher, Martin Elsener, and Alexander Wokaun. "MnOx-CeO2 mixed oxides for the low-temperature oxidation of diesel soot." Applied Catalysis B: Environmental 64, no. 1-2 (2006): 72–78. http://dx.doi.org/10.1016/j.apcatb.2005.11.003.

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7

Lin, Xueting, Shujun Li, Hui He, et al. "Evolution of oxygen vacancies in MnOx-CeO2 mixed oxides for soot oxidation." Applied Catalysis B: Environmental 223 (April 2018): 91–102. http://dx.doi.org/10.1016/j.apcatb.2017.06.071.

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8

Wu, Xiaodong, Shuang Liu, Duan Weng, Fan Lin, and Rui Ran. "MnOx–CeO2–Al2O3 mixed oxides for soot oxidation: Activity and thermal stability." Journal of Hazardous Materials 187, no. 1-3 (2011): 283–90. http://dx.doi.org/10.1016/j.jhazmat.2011.01.010.

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9

Liu, Rong, Yi Fan Xu, Fei Ye, Ling Chen Ji, Hao Guan, and Ming Yang. "Low-Temperature Selective Catalytic Reduction with NH3 over MnOx-CeO2 Catalysts Supported on Nano Tetragonal Zirconia." Materials Science Forum 852 (April 2016): 293–99. http://dx.doi.org/10.4028/www.scientific.net/msf.852.293.

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The MnOx-CeO2/t-ZrO2 catalyst was prepared by impregnation with nano t-ZrO2 as the support. The influence of active component and reaction temperature on denitration performance of catalyst was investigated. The results showed that denitration efficiency improved as active component increased and reaction temperature rose. The denitration efficiency of 2.5% MnOx-CeO2/t-ZrO2 at 100°C was 68.1% while 15% MnOx-CeO2/t-ZrO2 was 97.4%. The results of XRD, BET and H2-TPR showed that surface structure of loaded catalyst was good for oxidation-reduction and denigration. NH3-TPD test demonstrated that N
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10

Han, Xuewang, Chaoqun Li, Xiaohui Liu, Qineng Xia, and Yanqin Wang. "Selective oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid over MnOx–CeO2 composite catalysts." Green Chemistry 19, no. 4 (2017): 996–1004. http://dx.doi.org/10.1039/c6gc03304k.

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Non-noble metal catalysts, MnO<sub>x</sub>–CeO<sub>2</sub> mixed oxides, were prepared by a co-precipitation method and used in the direct aerobic oxidation of HMF to FDCA, showing excellent catalystic activity and stability.
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11

Wu, Xiaodong, Qing Liang, Duan Weng, Jun Fan, and Rui Ran. "Synthesis of CeO2–MnOx mixed oxides and catalytic performance under oxygen-rich condition." Catalysis Today 126, no. 3-4 (2007): 430–35. http://dx.doi.org/10.1016/j.cattod.2007.06.014.

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12

Guo, Zeyu, Qing-Hua Liang, Zhiyu Yang, Shuang Liu, Zheng-Hong Huang, and Feiyu Kang. "Modifying porous carbon nanofibers with MnOx–CeO2–Al2O3 mixed oxides for NO catalytic oxidation at room temperature." Catalysis Science & Technology 6, no. 2 (2016): 422–25. http://dx.doi.org/10.1039/c5cy01617g.

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13

Grabchenko, M. V., N. V. Dorofeeva, I. N. Lapin, V. La Parola, L. F. Liotta, and O. V. Vodyankina. "Study of Nickel Catalysts Supported on MnOx–CeO2 Mixed Oxides in Dry Reforming of Methane." Kinetics and Catalysis 62, no. 6 (2021): 765–77. http://dx.doi.org/10.1134/s0023158421060069.

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14

Afonasenko, Tatyana N., Daria V. Yurpalova, Zakhar S. Vinokurov, et al. "The Formation of Mn-Ce-Zr Oxide Catalysts for CO and Propane Oxidation: The Role of Element Content Ratio." Catalysts 13, no. 1 (2023): 211. http://dx.doi.org/10.3390/catal13010211.

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The MnOх-ZrO2-CeO2 oxide catalysts were synthesized by co-precipitation method with varying (1) Zr/Zr + Ce molar ratio at constant manganese content of 0.3; (2) manganese content at constant Zr/Ce molar ratio of 1; (3) Mn/Mn + Zr molar ratio at constant Ce content of 0.5. Catalysts are characterized by XRD, N2 adsorption, TPR, and XPS. The catalytic activity of all the series was tested in the CO and propane oxidation reactions. In contrast to the variation of the manganese content, the Zr/Zr + Ce molar ratio does not significantly affect the catalytic properties. The dependence of the catalyt
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15

Lin, Fan, Xiaodong Wu, Shuang Liu, Duan Weng, and Yuying Huang. "Preparation of MnOx–CeO2–Al2O3 mixed oxides for NOx-assisted soot oxidation: Activity, structure and thermal stability." Chemical Engineering Journal 226 (June 2013): 105–12. http://dx.doi.org/10.1016/j.cej.2013.04.006.

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16

La Greca, Eleonora, Tamara S. Kharlamova, Maria V. Grabchenko, et al. "Ag Catalysts Supported on CeO2, MnO2 and CeMnOx Mixed Oxides for Selective Catalytic Reduction of NO by C3H6." Nanomaterials 13, no. 5 (2023): 873. http://dx.doi.org/10.3390/nano13050873.

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In the present study CeO2, MnO2 and CeMnOx mixed oxide (with molar ratio Ce/Mn = 1) were prepared by sol-gel method using citric acid as a chelating agent and calcined at 500 °C. The silver catalysts (1 wt.% Ag) over the obtained supports were synthesized by the incipient wetness impregnation method with [Ag(NH3)2]NO3 aqueous solution. The selective catalytic reduction of NO by C3H6 was investigated in a fixed-bed quartz reactor using a reaction mixture composed of 1000 ppm NO, 3600 ppm C3H6, 10 vol.% O2, 2.9 vol.% H2 and He as a balance gas, at WHSV of 25,000 mL g−1 h−1.The physical-chemical
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17

Neatu, Stefan, Mihaela M. Trandafir, Adelina Stănoiu, et al. "Bulk Versus Surface Modification of Alumina with Mn and Ce Based Oxides for CH4 Catalytic Combustion." Materials 12, no. 11 (2019): 1771. http://dx.doi.org/10.3390/ma12111771.

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This study presents the synthesis and characterization of lanthanum-modified alumina supported cerium–manganese mixed oxides, which were prepared by three different methods (coprecipitation, impregnation and citrate-based sol-gel method) followed by calcination at 500 °C. The physicochemical properties of the synthesized materials were investigated by various characterization techniques, namely: nitrogen adsorption-desorption isotherms, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and H2–temperature programmed reduction (TPR). This experim
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18

Li, Zhiming, Xiaolin Guo, Fei Tao, and Renxian Zhou. "New insights into the effect of morphology on catalytic properties of MnOx–CeO2 mixed oxides for chlorobenzene degradation." RSC Advances 8, no. 45 (2018): 25283–91. http://dx.doi.org/10.1039/c8ra04010a.

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19

Wu, Xiaodong, Fan Lin, Haibo Xu, and Duan Weng. "Effects of adsorbed and gaseous NOx species on catalytic oxidation of diesel soot with MnOx–CeO2 mixed oxides." Applied Catalysis B: Environmental 96, no. 1-2 (2010): 101–9. http://dx.doi.org/10.1016/j.apcatb.2010.02.006.

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20

Shao, Jiaming, Fawei Lin, Yan Li, et al. "Co-precipitation Synthesized MnOx-CeO2 Mixed Oxides for NO Oxidation and Enhanced Resistance to Low Concentration of SO2 by Metal Addition." Catalysts 9, no. 6 (2019): 519. http://dx.doi.org/10.3390/catal9060519.

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NO oxidation was conducted over MnOx-CeO2 catalysts, which were synthesized by the co-precipitation method. The calcination temperature and third metal doping were the main considerations. MnCe catalysts calcined at 350 °C and 450 °C attained the highest NO conversion efficiency, compared to 550 °C. XRD results suggested that the higher the calcination temperature, the higher the crystallization degree, which led to a negative effect on catalytic activity. Subsequently, Sn, Fe, Co, Cr, and Cu were separately doped into MnCe composites, but no improvement was observed for these trimetallic cata
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21

Qi, Gongshin, Ralph T. Yang, and Ramsay Chang. "MnOx-CeO2 mixed oxides prepared by co-precipitation for selective catalytic reduction of NO with NH3 at low temperatures." Applied Catalysis B: Environmental 51, no. 2 (2004): 93–106. http://dx.doi.org/10.1016/j.apcatb.2004.01.023.

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22

GONG, LEI, LAI-TAO LUO, RUI WANG, and NING ZHANG. "EFFECT OF PREPARATION METHODS OF CeO2-MnOx MIXED OXIDES ON PREFERENTIAL OXIDATION OF CO IN H2-RICH GASES OVER CuO-BASED CATALYSTS." Journal of the Chilean Chemical Society 57, no. 1 (2012): 1048–53. http://dx.doi.org/10.4067/s0717-97072012000100020.

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23

Zhang, Hailong, Caixia Zhou, Maria Elena Galvez, Patrick Da Costa, and Yaoqiang Chen. "MnOx-CeO2 mixed oxides as the catalyst for NO-assisted soot oxidation: The key role of NO adsorption/desorption on catalytic activity." Applied Surface Science 462 (December 2018): 678–84. http://dx.doi.org/10.1016/j.apsusc.2018.08.186.

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24

Luo, Juhua, Hongkai Mao, Xu Wang, and Wei Yao. "The Effects of SiO2 and CeO2 Addition on the Performances of MnOx/TiO2 Catalysts." Australian Journal of Chemistry 69, no. 10 (2016): 1180. http://dx.doi.org/10.1071/ch16060.

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A TiO2-SiO2 mixed oxide was obtained by a co-precipitation method. MnOx-CeO2/TiO2-SiO2 were prepared by an impregnation method and their activity towards the selective catalytic reduction of NO with NH3 at low temperature were evaluated. Compared with pure TiO2, TiO2-SiO2 exhibited an evidently larger surface area and pore volume, and a smaller average pore diameter with narrow distribution. The NO conversion of the MnOx/TiO2-SiO2 catalyst could be improved by the addition of an appropriate amount of CeO2 in the temperature range of 100–180°C. MnOx-CeO2/TiO2-SiO2 with 10 wt-% CeO2 showed the h
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25

Xingyi, Wang, Kang Qian, and Li Dao. "Catalytic combustion of chlorobenzene over MnOx–CeO2 mixed oxide catalysts." Applied Catalysis B: Environmental 86, no. 3-4 (2009): 166–75. http://dx.doi.org/10.1016/j.apcatb.2008.08.009.

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26

Ying, Zhou, Xu Chenjun, Sheng Yeqing, Zhu Qiuliang, Chen Yinfei, and Lu Hanfeng. "Thermal stability of MnOx–CeO2 mixed oxide for soot combustion: influence of Al2O3, TiO2, and ZrO2 carriers." RSC Advances 5, no. 111 (2015): 91734–41. http://dx.doi.org/10.1039/c5ra17328k.

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MnO<sub>x</sub>–CeO<sub>2</sub> (Mn/Ce = 0.15/0.85) mixed oxide materials supported on ZrO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub>, and TiO<sub>2</sub> were prepared by citrate sol–gel method to prevent the CeO<sub>2</sub>-based oxide catalyst from sintering during soot combustion reaction.
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27

Huang, Qiong, Yueying Lu, Han Si, et al. "Study of Complete Oxidation of Formaldehyde Over MnOx–CeO2 Mixed Oxide Catalysts at Ambient Temperature." Catalysis Letters 148, no. 9 (2018): 2880–90. http://dx.doi.org/10.1007/s10562-018-2479-0.

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28

Martín-Martín, Juan Alberto, Asier Aranzabal, María Pilar González-Marcos, Elisabetta Finocchio, and Juan Ramón González-Velasco. "Reaction mechanism of 1,2-dichlorobenzene oxidation over MnOX-CeO2 and the effect of simultaneous NO selective reduction." Chemical Engineering Journal 498 (September 7, 2024): 155570. https://doi.org/10.1016/j.cej.2024.155570.

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[ABSTRACT] MnO<sub>X</sub>-CeO<sub>2</sub> formulation has been studied for the catalytic oxidation of 1,2-dichlorobenzene. Among the samples with different Mn and Ce content, the most active was 85%mol Mn and 15%mol Ce, due to its better morphological properties and the synergy achieved between the two phases composing it (mixed oxide phase and segregated Mn oxide). Deactivation was monitored at low temperature and a transient change in the oxidative capability at high temperature because of active sites with different oxidative capability. Based on in-situ FTIR results, oxidation reaction pa
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29

Tang, Xingfu, Yonggang Li, Xiumin Huang, et al. "MnOx–CeO2 mixed oxide catalysts for complete oxidation of formaldehyde: Effect of preparation method and calcination temperature." Applied Catalysis B: Environmental 62, no. 3-4 (2006): 265–73. http://dx.doi.org/10.1016/j.apcatb.2005.08.004.

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30

Lee, Sang Moon, Kwang Hee Park, and Sung Chang Hong. "MnOx/CeO2–TiO2 mixed oxide catalysts for the selective catalytic reduction of NO with NH3 at low temperature." Chemical Engineering Journal 195-196 (July 2012): 323–31. http://dx.doi.org/10.1016/j.cej.2012.05.009.

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31

Tang, Xingfu, Yide Xu, and Wenjie Shen. "Promoting effect of copper on the catalytic activity of MnOx–CeO2 mixed oxide for complete oxidation of benzene." Chemical Engineering Journal 144, no. 2 (2008): 175–80. http://dx.doi.org/10.1016/j.cej.2008.01.016.

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32

Li, Hailong, Chang-Yu Wu, Ying Li, Liqing Li, Yongchun Zhao, and Junying Zhang. "Role of flue gas components in mercury oxidation over TiO2 supported MnOx-CeO2 mixed-oxide at low temperature." Journal of Hazardous Materials 243 (December 2012): 117–23. http://dx.doi.org/10.1016/j.jhazmat.2012.10.007.

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33

Martín-Martín, Juan Alberto, María Pilar González-Marcos, Asier Aranzabal, and Juan Ramón González-Velasco. "Effect of interaction degree between Mn and Ce of MnOX-CeO2 formulation on NO reduction and o-DCB oxidation performed simultaneously." Journal of Environmental Chemical Engineering 11, no. 5 (2023): 110200. https://doi.org/10.1016/j.jece.2023.110200.

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[ABSTRACT] MnO<sub>X</sub>-CeO<sub>2</sub> catalysts were prepared by different methods in order to assess the influence of Mn and Ce interaction on the catalytic activity of NO reduction and 1,2-dichlorobencene (o-DCB) oxidation carried out simultaneously. Changes on catalytic properties were evaluated by XRD, Raman, N<sub>2</sub>-physisorption, H<sub>2</sub>-TPR and NH<sub>3</sub>-TPD. The samples prepared by co-precipitation and sol-gel exhibited the best catalytic activity over the whole temperature range. These preparation methods provide high interaction between Mn and Ce at surface and
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34

Mousavi, Seyed Mahdi, Dariush Salari, Aligholi Niaei, Parvaneh Nakhostin Panahi, and Sirous Shafiei. "A modelling study and optimization of catalytic reduction of NO over CeO2–MnOx(0.25)–Ba mixed oxide catalyst using design of experiments." Environmental Technology 35, no. 5 (2013): 581–89. http://dx.doi.org/10.1080/09593330.2013.837964.

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35

Mousavi, Seyed Mahdi, Parvaneh Nakhostin Panahi, and Aligholi Niaei. "Physicochemical Properties and NH3-SCR Performance of Supported CeO2–MnOx Mixed Oxides Catalysts." Russian Journal of Applied Chemistry, June 28, 2024. http://dx.doi.org/10.1134/s1070427224020034.

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36

Martín-Martín, J. A., M. P. González-Marcos, A. Aranzabal, J. R. González-Velasco, and E. Finocchio. "Promotion of Different Active Phases in MnOX-CeO2 Catalysts for Simultaneous NO Reduction and o-DCB Oxidation." Topics in Catalysis, July 23, 2024. http://dx.doi.org/10.1007/s11244-024-01995-9.

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AbstractMnOX-CeO2 catalysts with different Mn and Ce content were prepared to evaluate the effect of metal content on catalytic properties and activity in the simultaneous NO reduction and o-DCB oxidation, in order to elucidate the most active species for the process. Catalytic properties were evaluated by ICP-AES, XRD, skeletal FTIR, STEM-HAADF, XPS, N2-physisorption, H2-TPR, NH3-TPD and pyridine-FTIR. Catalysts with 85%Mn and 15%Ce molar content have been found to be the most active. Their excellent catalytic performance is related to the coexistence of Mn in different phases, i.e., Mn speci
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37

Martín, Martín Juan Alberto, María Pilar González-Marcos, Asier Aranzabal, Juan Ramón González-Velasco, and Elisabetta Finocchio. "Promotion of different active phases in MnOX-CeO2 catalysts for simultaneous NO reduction and o-DCB oxidation." Topis on Catalysis, July 5, 2024. https://doi.org/10.1007/s11244-024-01995-9.

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[ABSTRACT] MnO<sub>X</sub>-CeO<sub>2</sub> catalysts with different Mn and Ce content were prepared to evaluate the effect of metal content on catalytic properties and activity in the simultaneous NO reduction and o-DCB oxidation, in order to elucidate the most active species for the process. Catalytic properties were evaluated by ICP-AES, XRD, skeletal FTIR, STEM-HAADF, XPS, N<sub>2</sub>-physisorption, H<sub>2</sub>-TPR, NH<sub>3</sub>-TPD and pyridine-FTIR. Catalysts with 85%Mn and 15%Ce molar content have been found to be the most active. Their excellent catalytic performance is related to
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