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Feng S, Li Z, Shen B, Yuan P, Ma J, Wang Z, Kong W. An overview of the deactivation mechanism and modification methods of the SCR catalysts for denitration from marine engine exhaust. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 317:115457. [PMID: 35751261 DOI: 10.1016/j.jenvman.2022.115457] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 11/27/2021] [Accepted: 05/28/2022] [Indexed: 06/15/2023]
Abstract
Selective catalytic reduction (SCR) technology is currently the most effective deNOx technology and has broad application prospects. Moreover, there is a large NOx content in marine engine exhaust. However, the marine engine SCR catalyst will be affected by heavy metals, SO2, H2O(g), hydrocarbons (HC) and particulate matter (PM) in the exhaust, which will hinder the removal of NOx via SCR. Furthermore, due to the high loading operation of the marine engine and the regeneration of the diesel particulate filter (DPF), the exhaust temperature of the engine may exceed 600 °C, which leads to sintering of the SCR catalysts. Therefore, the development of new catalysts with good tolerances to the above emissions and process parameters is of great significance for further reducing NOx from marine engines. In this work, we first elaborate on the mechanism of the SCR catalyst poisoning caused by marine engine emissions, as well as the working mechanism of SCR catalysts affected by the engine exhaust temperature. Second, we also summarize the current technologies for improving the properties of SCR catalysts with the aim of enhancing the resistance and stability under complex working conditions. Finally, the challenges and perspectives associated with the performance optimization and technology popularization of marine SCR systems are discussed and proposed further. Consequently, this review may provide a valuable reference and inspiration for the development of catalysts and improvement in the denitration ability of SCR systems matched with marine engines.
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Affiliation(s)
- Shuo Feng
- School of Energy and Environmental Engineering, Tianjin Key Laboratory of Clean Energy and Pollution Control, Hebei University of Technology, Tianjin, 300401, China
| | - Zhaoming Li
- School of Energy and Environmental Engineering, Tianjin Key Laboratory of Clean Energy and Pollution Control, Hebei University of Technology, Tianjin, 300401, China
| | - Boxiong Shen
- School of Energy and Environmental Engineering, Tianjin Key Laboratory of Clean Energy and Pollution Control, Hebei University of Technology, Tianjin, 300401, China.
| | - Peng Yuan
- School of Energy and Environmental Engineering, Tianjin Key Laboratory of Clean Energy and Pollution Control, Hebei University of Technology, Tianjin, 300401, China; School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China.
| | - Jiao Ma
- School of Energy and Environmental Engineering, Tianjin Key Laboratory of Clean Energy and Pollution Control, Hebei University of Technology, Tianjin, 300401, China
| | - Zhuozhi Wang
- School of Energy and Environmental Engineering, Tianjin Key Laboratory of Clean Energy and Pollution Control, Hebei University of Technology, Tianjin, 300401, China
| | - Wenwen Kong
- School of Energy and Environmental Engineering, Tianjin Key Laboratory of Clean Energy and Pollution Control, Hebei University of Technology, Tianjin, 300401, China
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2
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Molybdenum oxide as an efficient promoter to enhance the NH3-SCR performance of CeO2-SiO2 catalyst for NO removal. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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3
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Li X, Han Z, Wang X, Yang S, Liu G, Gao Y, Li C. Acid treatment of ZrO2-supported CeO2 catalysts for NH3-SCR of NO: Influence on surface acidity and reaction mechanism. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2021.11.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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4
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Xu S, Cao Y, Liu Z. Dimethyl carbonate synthesis from CO2 and methanol over CeO2-ZrO2 catalyst. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106397] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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5
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Li C, Han Z, Hu Y, Liu T, Pan X. Synthesis of W-modified CeO 2/ZrO 2 catalysts for selective catalytic reduction of NO with NH 3. RSC Adv 2022; 12:27309-27320. [PMID: 36276006 PMCID: PMC9513439 DOI: 10.1039/d2ra04862k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 09/20/2022] [Indexed: 11/30/2022] Open
Abstract
In this paper, a series of tungsten–zirconium mixed binary oxides (denoted as WmZrOx) were synthesized via co-precipitation as supports to prepare Ce0.4/WmZrOx catalysts through an impregnation method. The promoting effect of W doping in ZrO2 on selective catalytic reduction (SCR) performance of Ce0.4/ZrO2 catalysts was investigated. The results demonstrated that addition of W in ZrO2 could remarkably enhance the catalytic performance of Ce0.4/ZrO2 catalysts in a broad temperature range. Especially when the W/Zr molar ratio was 0.1, the Ce0.4/W0.1ZrOx catalyst exhibited the widest active temperature window of 226–446 °C (NOx conversion rate > 80%) and its N2 selectivity was almost 100% in the temperature of 150–450 °C. Moreover, the Ce0.4/W0.1ZrOx catalyst also exhibited good SO2 tolerance, which could maintain more than 94% of NOx conversion efficiency after being exposed to a 100 ppm SO2 atmosphere for 18 h. Various characterization results manifested that a proper amount of W doping in ZrO2 was not only beneficial to enlarge the specific surface area of the catalyst, but also inhibited the growth of fluorite structure CeO2, which were in favor of CeO2 dispersion on the support. The presence of W was conducive to the growth of a stable tetragonal phase crystal of ZrO2 support, and a part of W and Zr combined to form W–Zr–Ox solid super acid. Both of them resulted in abundant Lewis acid sites and Brønsted acid sites, enhancing the total surface acidity, thus significantly improving NH3 species adsorption on the surface of the Ce0.4/W0.1ZrOx catalyst. Furthermore, the promoting effect of adding W on SCR performance was also related to the improved redox capability, higher Ce3+/(Ce3+ + Ce4+) ratio and abundant surface chemisorbed oxygen species. The in situ DRIFTS results indicated that nitrate species adsorbed on the surface of the Ce0.4/W0.1ZrOx catalyst could react with NH3 due to the activation of W. Therefore, the reaction pathway over the Ce0.4/W0.1ZrOx catalyst followed both Eley–Rideal (E–R) and Langmuir–Hinshelwood (L–H) mechanisms at 250 °C. Interaction of W with Zr improved NH3-SCR performance via enhancing redox and surface acidity.![]()
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Affiliation(s)
- Chenglong Li
- Marine Engineering College, Dalian Maritime University, No.1, Linghai Road, Dalian 116026, China
| | - Zhitao Han
- Marine Engineering College, Dalian Maritime University, No.1, Linghai Road, Dalian 116026, China
| | - Yuqing Hu
- Marine Engineering College, Dalian Maritime University, No.1, Linghai Road, Dalian 116026, China
| | - Tingjun Liu
- Marine Engineering College, Dalian Maritime University, No.1, Linghai Road, Dalian 116026, China
| | - Xinxiang Pan
- Marine Engineering College, Dalian Maritime University, No.1, Linghai Road, Dalian 116026, China
- School of Electronic and Information Technology, Guangdong Ocean University, Zhanjiang 524088, China
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6
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Li C, Han Z, Wang X, Gao Y, Wang Z, Pan X. The promoting effect of support pretreatment with sulfate acid on the Ca resistance of a CeO 2/ZrO 2 catalyst for NH 3-SCR of NO x with NH 3. NEW J CHEM 2022. [DOI: 10.1039/d2nj02919g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CaSO4 was formed through the reaction between S and Ca to relieve the effect of Ca-poisoning on the catalyst.
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Affiliation(s)
- Chenglong Li
- Marine Engineering College, Dalian Maritime University, No. 1, Linghai Road, Dalian 116026, China
| | - Zhitao Han
- Marine Engineering College, Dalian Maritime University, No. 1, Linghai Road, Dalian 116026, China
| | - Xinxin Wang
- Marine Engineering College, Dalian Maritime University, No. 1, Linghai Road, Dalian 116026, China
| | - Yu Gao
- Marine Engineering College, Dalian Maritime University, No. 1, Linghai Road, Dalian 116026, China
| | - Zhen Wang
- Marine Engineering College, Dalian Maritime University, No. 1, Linghai Road, Dalian 116026, China
| | - Xinxiang Pan
- Marine Engineering College, Dalian Maritime University, No. 1, Linghai Road, Dalian 116026, China
- School of Electronic and Information Technology, Guangdong Ocean University, Zhanjiang 524088, China
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7
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Liu S, Yao P, Lin Q, Xu S, Pei M, Wang J, Xu H, Chen Y. Optimizing acid promoters of Ce-based NH3-SCR catalysts for reducing NOx emissions. Catal Today 2021. [DOI: 10.1016/j.cattod.2021.05.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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8
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Zhou Z, Li W, Liu Z. Significantly Enhanced Catalytic Performance of Fe 2(SO 4) 3/CeO 2 Catalyst for the Selective Catalytic Reduction of NO x by NH 3. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02977] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zizheng Zhou
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Weihua Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhiming Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Center for Pollution Control and Resource Recovery, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, China
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Li L, Ge C, Ji J, Tan W, Wang X, Wei X, Guo K, Tang C, Dong L. Effects of different methods of introducing Mo on denitration performance and anti-SO2 poisoning performance of CeO2. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63778-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Mosrati J, Abdel-Mageed AM, Vuong TH, Grauke R, Bartling S, Rockstroh N, Atia H, Armbruster U, Wohlrab S, Rabeah J, Brückner A. Tiny Species with Big Impact: High Activity of Cu Single Atoms on CeO 2–TiO 2 Deciphered by Operando Spectroscopy. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02349] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Jawaher Mosrati
- Leibniz-Institut für Katalyse, Albert-Einstein-Str. 29A, 18059 Rostock, Germany
- Laboratoire de chimie des matériaux et catalyse, Département de chimie, Faculté des sciences de Tunis, Université de Tunis el Manar, Tunis 1092, Tunisie
| | - Ali M. Abdel-Mageed
- Institute of Surface Chemistry and Catalysis, Ulm University, Albert-Einstein-Allee 47, D-89081 Ulm, Germany
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Thanh Huyen Vuong
- Leibniz-Institut für Katalyse, Albert-Einstein-Str. 29A, 18059 Rostock, Germany
| | - Reni Grauke
- Leibniz-Institut für Katalyse, Albert-Einstein-Str. 29A, 18059 Rostock, Germany
| | - Stephan Bartling
- Leibniz-Institut für Katalyse, Albert-Einstein-Str. 29A, 18059 Rostock, Germany
| | - Nils Rockstroh
- Leibniz-Institut für Katalyse, Albert-Einstein-Str. 29A, 18059 Rostock, Germany
| | - Hanan Atia
- Leibniz-Institut für Katalyse, Albert-Einstein-Str. 29A, 18059 Rostock, Germany
| | - Udo Armbruster
- Leibniz-Institut für Katalyse, Albert-Einstein-Str. 29A, 18059 Rostock, Germany
| | - Sebastian Wohlrab
- Leibniz-Institut für Katalyse, Albert-Einstein-Str. 29A, 18059 Rostock, Germany
| | - Jabor Rabeah
- Leibniz-Institut für Katalyse, Albert-Einstein-Str. 29A, 18059 Rostock, Germany
| | - Angelika Brückner
- Leibniz-Institut für Katalyse, Albert-Einstein-Str. 29A, 18059 Rostock, Germany
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11
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Tan W, Wang C, Yu S, Li Y, Xie S, Gao F, Dong L, Liu F. Revealing the effect of paired redox-acid sites on metal oxide catalysts for efficient NO x removal by NH 3-SCR. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125826. [PMID: 34492788 DOI: 10.1016/j.jhazmat.2021.125826] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/27/2021] [Accepted: 04/03/2021] [Indexed: 06/13/2023]
Abstract
Understanding the nature of active sites on metal oxide catalysts in the selective catalytic reduction (SCR) of NO by NH3 (NH3-SCR) is a crucial prerequisite for the development of novel efficient NH3-SCR catalysts. In this work, two CeO2-based SCR catalyst systems with diverse acidic metal oxides-CeO2 interfaces, i.e., Nb2O5-CeO2 (Nb2O5/CeO2 and CeO2/Nb2O5) and WO3-CeO2 (WO3/CeO2 and CeO2/WO3), were prepared and used to reveal the relationship between NH3-SCR activity and surface acidity/redox properties. In combination with the results of the NH3-SCR activity test and various characterizations, it was found that the NH3-SCR performance of Nb2O5-CeO2 and WO3-CeO2 catalysts was highly dependent on the strong interactions between the redox component (CeO2) and acidic component (Nb2O5 or WO3), as well as the amount of paired redox-acid sites. From a quantitative perspective, an activity-surface acidity/redox property relationship was proposed. For both Nb2O5-CeO2 and WO3-CeO2 catalysts systems operated at the more concerned low-temperature range (200 °C), the NH3-SCR activity in low NOx conversion region (< 40%) was mainly dominated by the surface acidity of catalysts, while the NH3-SCR activity in high NOx conversion region (> 40%) was more determined by redox properties.
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Affiliation(s)
- Wei Tan
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL 32816, United States; Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Jiangsu Key Laboratory of Vehicle Emissions Control, School of Environment, Center of Modern Analysis, Nanjing 210093, China
| | - Chunying Wang
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Shuohan Yu
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Jiangsu Key Laboratory of Vehicle Emissions Control, School of Environment, Center of Modern Analysis, Nanjing 210093, China
| | - Yaobin Li
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Shaohua Xie
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL 32816, United States.
| | - Fei Gao
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Jiangsu Key Laboratory of Vehicle Emissions Control, School of Environment, Center of Modern Analysis, Nanjing 210093, China
| | - Lin Dong
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Jiangsu Key Laboratory of Vehicle Emissions Control, School of Environment, Center of Modern Analysis, Nanjing 210093, China
| | - Fudong Liu
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL 32816, United States.
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12
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Xu Y, Liu W, Peng B, Liu Z, Li Z, Zhao Y. Impact of Zr on the Activity of MoO3/Ce1−xZrxO2 Catalysts for Sulfur-Resistant Methanation. Top Catal 2021. [DOI: 10.1007/s11244-021-01429-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Li N, Chen Z, Bai X, Hou L, Jiao K, Wu W. Study on the mechanism of synthetic (Ce,La)CO 3F sulfuric acid acidification and NH 3-SCR loaded with Mn and Fe. RSC Adv 2021; 11:19943-19955. [PMID: 35479881 PMCID: PMC9033760 DOI: 10.1039/d1ra02788c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 05/18/2021] [Indexed: 11/21/2022] Open
Abstract
A hydrothermal method was used to synthesise (Ce,La)CO3F grain simulated minerals, in accordance with the Ce-La ratio of bastnaesite in the mineralogy of the Bayan Ebo process. The NH3-SCR catalytic activity of the synthesised (Ce,La)CO3F was improved by loading transition metals Mn and Fe and sulphuric acid acidification treatments. The activity test results showed that the catalysts which were simultaneously acidified with sulphuric acid and loaded with transition metals Mn and Fe had a NO x conversion of 92% at 250 °C. XRD, SEM, XPS and in situ Fourier transform infrared spectroscopy (FTIR) were used to investigate the physical phase structure, surface morphology, reaction performance and mechanism of the catalysts, to provide theoretical guidance for the specific reaction path of cerium fluorocarbon ore in the NH3-SCR reaction. The results showed that the introduction of transition metals and sulphuric acid greatly increases the proportion of adsorbed oxygen (Oα) and facilitates the adsorption of NH3 and NO. The catalyst surface metal sulphate and metal oxide species act as the main active components on the catalyst surface to promoted the reaction, and cracks and pores appear on the surface to facilitate the adsorption of reactive gases. The reaction mechanism of the SO4 2--Mn-Fe/(Ce,La)CO3F catalyst, and characterisation of the adsorption and conversion behaviour of the reactive species on the catalyst surface, were investigated by Fourier transform infrared spectroscopy (FTIR). The results showed that the catalyst follows the E-R and L-H mechanisms throughout the reaction, with the E-R mechanism being the main reaction. The reaction species were NH4 +/NH3 species in the adsorbed state and NO. The NH3(ad) species on the Lewis acidic site is the main NH3(g) adsorbed species for the reaction, bonded to Ce4+ in the carrier (Ce,La)CO3F to participate in the acid cycle reaction, and undergo a redox reaction on the catalyst surface to produce N2 and H2O. The SO4 2- present on the catalyst surface can also act as an acidic site for the adsorption of NH3. The above results indicated the excellent performance of the SO4 2--Mn-Fe/(Ce,La)CO3F catalyst, which provided a theoretical basis for the high value utilization of bastnaesite.
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Affiliation(s)
- Na Li
- School of Energy and Environment, Inner Mongolia University of Science and Technology Baotou 014010 Inner Mongolia China
- School of Environmental Science and Engineering, North China Electric Power University Baoding Hebei 071000 China
| | - Zedong Chen
- School of Energy and Environment, Inner Mongolia University of Science and Technology Baotou 014010 Inner Mongolia China
| | - Xinrui Bai
- School of Energy and Environment, Inner Mongolia University of Science and Technology Baotou 014010 Inner Mongolia China
| | - Limin Hou
- Key Laboratory of Efficient and Clean Combustion Baotou 014010 Inner Mongolia Autonomous Region China
| | - Kunling Jiao
- School of Energy and Environment, Inner Mongolia University of Science and Technology Baotou 014010 Inner Mongolia China
| | - Wenfei Wu
- School of Energy and Environment, Inner Mongolia University of Science and Technology Baotou 014010 Inner Mongolia China
- Key Laboratory of Efficient and Clean Combustion Baotou 014010 Inner Mongolia Autonomous Region China
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14
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New MoO3-CeO2-ZrO2 and WO3-CeO2-ZrO2 nanostructured mesoporous aerogel catalysts for the NH3-SCR of NO from diesel engine exhaust. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2020.12.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Mosrati J, Atia H, Eckelt R, Huyen Vuong T, Rabeah J, Mhamdi M, Armbruster U. Ta and Mo oxides supported on CeO2-TiO2 for the selective catalytic reduction of NOx with NH3 at low temperature. J Catal 2021. [DOI: 10.1016/j.jcat.2021.01.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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Zhou Z, Lan J, Liu L, Liu Z. Enhanced alkali resistance of sulfated CeO2 catalyst for the reduction of NOx from biomass fired flue gas. CATAL COMMUN 2021. [DOI: 10.1016/j.catcom.2020.106230] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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17
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Wu P, Shen K, Liu Y, Zhang Y, Li G, Yang H, Wang S. Enhanced activity and alkali metal resistance in vanadium SCR catalyst via co-modification with Mo and Sb. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00227a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enhanced surface acidity contributed significantly to the catalytic activity and alkali metal resistance of the optimum catalysts.
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Affiliation(s)
- Peng Wu
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education
- School of Energy and Environment
- Southeast University
- Nanjing
- China
| | - Kai Shen
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education
- School of Energy and Environment
- Southeast University
- Nanjing
- China
| | - Yiliang Liu
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education
- School of Energy and Environment
- Southeast University
- Nanjing
- China
| | - Yaping Zhang
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education
- School of Energy and Environment
- Southeast University
- Nanjing
- China
| | - Goubo Li
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education
- School of Energy and Environment
- Southeast University
- Nanjing
- China
| | | | - Sheng Wang
- State Power Environmental Protection Research Institute
- Nanjing
- China
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18
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Shan Y, Liu Y, Li Y, Yang W. A review on application of cerium-based oxides in gaseous pollutant purification. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117181] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Wang P, Li Z, Wang X, Tong Y, Yuan F, Zhu Y. One‐pot synthesis of Cu/SAPO‐34 with hierarchical pore using cupric citrate as a copper source for excellent NH
3
‐SCR of NO performance. ChemCatChem 2020. [DOI: 10.1002/cctc.202000818] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Peiqiang Wang
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education School of Chemistry and Materials Heilongjiang University Harbin 150080 P. R. China
| | - Zhibin Li
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education School of Chemistry and Materials Heilongjiang University Harbin 150080 P. R. China
| | - Xiaotong Wang
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education School of Chemistry and Materials Heilongjiang University Harbin 150080 P. R. China
| | - Yongming Tong
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education School of Chemistry and Materials Heilongjiang University Harbin 150080 P. R. China
| | - Fulong Yuan
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education School of Chemistry and Materials Heilongjiang University Harbin 150080 P. R. China
| | - Yujun Zhu
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education School of Chemistry and Materials Heilongjiang University Harbin 150080 P. R. China
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Guo J, Zhang G, Tang Z, Zhang J. Morphology-Controlled Synthesis of TiO2 with Different Structural Units and Applied for the Selective Catalytic Reduction of NOx with NH3. CATALYSIS SURVEYS FROM ASIA 2020. [DOI: 10.1007/s10563-020-09312-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Wang P, Yan L, Gu Y, Kuboon S, Li H, Yan T, Shi L, Zhang D. Poisoning-Resistant NO x Reduction in the Presence of Alkaline and Heavy Metals over H-SAPO-34-Supported Ce-Promoted Cu-Based Catalysts. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:6396-6405. [PMID: 32324392 DOI: 10.1021/acs.est.0c00100] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Selective catalytic reduction (SCR) of NOx using NH3 in the presence of alkaline and heavy metals is still an issue in the application of a stationary source. Reported here is the rational design of a novel H-SAPO-34-supported ceria-promoted copper-based catalyst (CuCe/H-SAPO-34) that demonstrates exceptional resistance against alkali (K), alkaline earth (Ca), and heavy metal (Pb) poisoning during SCR of NOx. The H-SAPO-34 support contained numerous acid sites that allowed Cu-based catalysts to maintain their catalytic activity while also resisting poisoning by K and Ca. Decorating the catalyst with CeO2 promoted the low-temperature deNOx activity by accelerating the redox cycle with Cu species and assisted the H-SAPO-34 in capturing Ca and Pb. H-SAPO-34-supported ceria-promoted copper oxide catalysts prevented the irreversible combination of K, Ca, or Pb with the active centers, providing the catalyst with excellent poisoning resistance. This work provides a strategy for the development of high-performance, poisoning-resistant catalysts for NH3-SCR of NOx in the presence of alkaline and heavy metals.
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Affiliation(s)
- Penglu Wang
- Department of Chemistry, Research Center of Nano Science and Technology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, People's Republic of China
| | - Lijun Yan
- Department of Chemistry, Research Center of Nano Science and Technology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, People's Republic of China
| | - Yundong Gu
- Department of Chemistry, Research Center of Nano Science and Technology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, People's Republic of China
| | - Sanchai Kuboon
- National Nanotechnology Center, National Science and Technology Development Agency, 111 Thailand Science Park, Pathum Thani 12120, Thailand
| | - Hongrui Li
- Department of Chemistry, Research Center of Nano Science and Technology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, People's Republic of China
| | - Tingting Yan
- Department of Chemistry, Research Center of Nano Science and Technology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, People's Republic of China
| | - Liyi Shi
- Department of Chemistry, Research Center of Nano Science and Technology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, People's Republic of China
| | - Dengsong Zhang
- Department of Chemistry, Research Center of Nano Science and Technology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, People's Republic of China
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22
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Investigation of Co3O4–CeO2 Composite Oxide as Catalyst for the Decomposition of N2O. CATALYSIS SURVEYS FROM ASIA 2020. [DOI: 10.1007/s10563-020-09303-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Turco R, Bonelli B, Armandi M, Spiridigliozzi L, Dell’Agli G, Deorsola F, Esposito S, Di Serio M. Active and stable ceria-zirconia supported molybdenum oxide catalysts for cyclooctene epoxidation: Effect of the preparation procedure. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.10.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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24
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Li L, Li P, Tan W, Ma K, Zou W, Tang C, Dong L. Enhanced low-temperature NH3-SCR performance of CeTiO catalyst via surface Mo modification. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(19)63437-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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25
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In situ DRIFTS investigation on CeO2/TiO2–ZrO2–SO2−4 catalyst for NH3–SCR: the influence of surface acidity and reducibility. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-019-03961-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Liu J, Zhao Z, Xu C, Liu J. Structure, synthesis, and catalytic properties of nanosize cerium-zirconium-based solid solutions in environmental catalysis. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(19)63400-5] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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27
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Han L, Cai S, Gao M, Hasegawa JY, Wang P, Zhang J, Shi L, Zhang D. Selective Catalytic Reduction of NOx with NH3 by Using Novel Catalysts: State of the Art and Future Prospects. Chem Rev 2019; 119:10916-10976. [DOI: 10.1021/acs.chemrev.9b00202] [Citation(s) in RCA: 568] [Impact Index Per Article: 113.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Lupeng Han
- Department of Chemistry, College of Sciences, State Key Laboratory of Advanced Special Steel, Research Center of Nano Science and Technology, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Sixiang Cai
- Department of Chemistry, College of Sciences, State Key Laboratory of Advanced Special Steel, Research Center of Nano Science and Technology, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
- School of Materials Science and Engineering, Hainan University, Haikou 570228, Hainan, China
| | - Min Gao
- Institute for Catalysis, Hokkaido University, Sapporo 001-0021, Japan
| | - Jun-ya Hasegawa
- Institute for Catalysis, Hokkaido University, Sapporo 001-0021, Japan
| | - Penglu Wang
- Department of Chemistry, College of Sciences, State Key Laboratory of Advanced Special Steel, Research Center of Nano Science and Technology, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Jianping Zhang
- Department of Chemistry, College of Sciences, State Key Laboratory of Advanced Special Steel, Research Center of Nano Science and Technology, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Liyi Shi
- Department of Chemistry, College of Sciences, State Key Laboratory of Advanced Special Steel, Research Center of Nano Science and Technology, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Dengsong Zhang
- Department of Chemistry, College of Sciences, State Key Laboratory of Advanced Special Steel, Research Center of Nano Science and Technology, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
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28
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Song Z, Liu P, Fu Y, Liu H, Huang Z, Kang H, Mao Y, Liu B, Guo Y. Promotional effect of acidic oxide on catalytic activity and N
2
selectivity over CeO
2
for selective catalytic reduction of NO
x
by NH
3. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4919] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhongxian Song
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation TechnologyHenan University of Urban Construction Pingdingshan 467000 China
| | - Pan Liu
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation TechnologyHenan University of Urban Construction Pingdingshan 467000 China
| | - Yongmei Fu
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation TechnologyHenan University of Urban Construction Pingdingshan 467000 China
| | - Hongpan Liu
- College of Materials and Chemical EngineeringChongqing University of Arts and Sciences Chongqing 402160 China
| | - Zhenzhen Huang
- College of Environmental Science and EngineeringHunan University Changsha 410082 China
| | - Haiyan Kang
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation TechnologyHenan University of Urban Construction Pingdingshan 467000 China
| | - Yanli Mao
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation TechnologyHenan University of Urban Construction Pingdingshan 467000 China
| | - Biao Liu
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation TechnologyHenan University of Urban Construction Pingdingshan 467000 China
| | - Yifei Guo
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation TechnologyHenan University of Urban Construction Pingdingshan 467000 China
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29
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Wang Q, Ma L. NO oxidative activity of mesoporous LaMnO3 and LaCoO3 perovskite nanoparticles by facile molten-salt synthesis. NEW J CHEM 2019. [DOI: 10.1039/c8nj04590a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
LaMnO3 and LaCoO3 perovskite nanoparticles have sprung up as the PGM-free catalysts for NO oxidation.
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Affiliation(s)
- Qianqian Wang
- Faculty of Environmental Science and Engineering
- Kunming University of Science and Technology
- Kunming 650500
- China
| | - Liping Ma
- Faculty of Environmental Science and Engineering
- Kunming University of Science and Technology
- Kunming 650500
- China
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30
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Improving the denitration performance and K-poisoning resistance of the V2O5-WO3/TiO2 catalyst by Ce4+ and Zr4+ co-doping. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(18)63184-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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31
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Abstract
In this study, CeZr0.5TiaOx (with a = 0, 1, 2, 5, 10) catalysts were prepared by a stepwise precipitation approach for the selective catalytic reduction of NOx with NH3. When Ti was added, all of the Ce-Zr-Ti oxide catalysts showed much better catalytic performances than the CeZr0.5Ox. Particularly, the CeZr0.5Ti2Ox catalyst showed excellent activity for broad temperature range under high space velocity condition. Through the control of pH value and precipitation time during preparation, the function of the CeZr0.5Ti2Ox catalyst could be controlled and the structure with highly dispersed CeO2 (with redox functions) on the surface of ZrO2-TiO2 (with acidic functions) could be obtained. Characterizations revealed that the superior catalytic performance of the catalyst is associated with its outstanding redox properties and adsorption/activation functions for the reactants.
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32
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Li L, Tan W, Wei X, Fan Z, Liu A, Guo K, Ma K, Yu S, Ge C, Tang C, Dong L. Mo doping as an effective strategy to boost low temperature NH3-SCR performance of CeO2/TiO2 catalysts. CATAL COMMUN 2018. [DOI: 10.1016/j.catcom.2018.05.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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33
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Jiang Y, Lu M, Liu S, Bao C, Liang G, Lai C, Shi W, Ma S. Deactivation by HCl of CeO 2-MoO 3/TiO 2 catalyst for selective catalytic reduction of NO with NH 3. RSC Adv 2018; 8:17677-17684. [PMID: 35542102 PMCID: PMC9080478 DOI: 10.1039/c8ra00280k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 04/23/2018] [Indexed: 11/29/2022] Open
Abstract
The effect of HCl on a CeO2–MoO3/TiO2 catalyst for the selective catalytic reduction of NO with NH3 was investigated with BET, XRD, NH3-TPD, H2-TPR, XPS and catalytic activity measurements. The results showed that HCl had an inhibiting effect on the activity of the CeO2–MoO3/TiO2 catalyst. The deactivation by HCl of the CeO2–MoO3/TiO2 catalyst could be attributed to pore blockage, weakened interaction among ceria, molybdenum and titania, reduction in surface acidity and degradation of redox ability. The Ce3+/Ce4+ redox cycle was damaged because unreactive Ce3+ in the form of CeCl3 lost the ability to be converted to active Ce4+ in the SCR reaction. In addition, a decrease in the amount of chemisorbed oxygen and the concentrations of surface Ce and Mo was also responsible for the deactivation by HCl of the CeO2–MoO3/TiO2 catalyst. The effect of HCl on a CeO2–MoO3/TiO2 catalyst for the selective catalytic reduction of NO with NH3.![]()
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Affiliation(s)
- Ye Jiang
- College of Pipeline and Civil Engineering, China University of Petroleum 66 Changjiang West Road Qingdao 266580 P. R. China +86-532-86981882 +86-532-86981767
| | - Mingyuan Lu
- College of Pipeline and Civil Engineering, China University of Petroleum 66 Changjiang West Road Qingdao 266580 P. R. China +86-532-86981882 +86-532-86981767
| | - Shaojun Liu
- State Key Laboratory of Clean Energy Utilization, Zhejiang University 32 Zheda Road Hangzhou 310027 China
| | - Changzhong Bao
- College of Pipeline and Civil Engineering, China University of Petroleum 66 Changjiang West Road Qingdao 266580 P. R. China +86-532-86981882 +86-532-86981767
| | - Guitao Liang
- College of Pipeline and Civil Engineering, China University of Petroleum 66 Changjiang West Road Qingdao 266580 P. R. China +86-532-86981882 +86-532-86981767
| | - Chengzhen Lai
- College of Pipeline and Civil Engineering, China University of Petroleum 66 Changjiang West Road Qingdao 266580 P. R. China +86-532-86981882 +86-532-86981767
| | - Weiyun Shi
- College of Pipeline and Civil Engineering, China University of Petroleum 66 Changjiang West Road Qingdao 266580 P. R. China +86-532-86981882 +86-532-86981767
| | - Shiyuan Ma
- College of Pipeline and Civil Engineering, China University of Petroleum 66 Changjiang West Road Qingdao 266580 P. R. China +86-532-86981882 +86-532-86981767
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34
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Recent Progress on Establishing Structure–Activity Relationship of Catalysts for Selective Catalytic Reduction (SCR) of NOx with NH3. CATALYSIS SURVEYS FROM ASIA 2017. [DOI: 10.1007/s10563-017-9237-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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35
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Cui Y, Yan Q, Zhang C, Qiu L, Wang Q. Pt/Ba/Co1Mg2Al1Ox with dual adsorption sites: A novel NOx storage and reduction catalyst. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2017.08.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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36
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Liu Z, Zhou Z, He F, Chen B, Zhao Y, Xu Q. Catalytic decomposition of N 2 O over NiO-CeO 2 mixed oxide catalyst. Catal Today 2017. [DOI: 10.1016/j.cattod.2017.02.030] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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37
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Ren Z, Fan H, Wang R. A novel ring-like Fe2O3-based catalyst: Tungstophosphoric acid modification, NH3-SCR activity and tolerance to H2O and SO2. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2017.06.038] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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38
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Geng Y, Chen X, Yang S, Liu F, Shan W. Promotional Effects of Ti on a CeO 2-MoO 3 Catalyst for the Selective Catalytic Reduction of NO x with NH 3. ACS APPLIED MATERIALS & INTERFACES 2017; 9:16951-16958. [PMID: 28471163 DOI: 10.1021/acsami.6b05380] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, Ti was doped to CeO2-MoO3 to promote the catalytic performance for the selective catalytic reduction of NOx with NH3 (NH3-SCR). The preparation method for CeMo0.5TiaOx (a = 0, 1, 2, 5, 10) catalysts was a stepwise precipitation method. When Ti was doped, all of the Ce-Mo-Ti catalysts exhibited remarkably improved NOx conversion and N2 selectivity than the CeMo0.5Ox without Ti. The CeMo0.5Ti5Ox with excellent activity in a broad temperature range was selected as an optimal catalyst to investigate the effects of Ti addition. The formation process analysis of the CeMo0.5Ti5Ox showed that, the Mo and Ti species first precipitated together from the mixed solution with the increase of pH, and then Ce species precipitated onto the Mo-Ti precipitates. The obtained catalyst exhibited remarkably facilitated NOx and NH3 adsorption, enhanced charge imbalance, promoted redox property, and improved surface acidity, which are all important reasons for the excellent catalytic performance of an NH3-SCR catalyst.
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Affiliation(s)
- Yang Geng
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology , Nanjing 210094, People's Republic of China
| | - Xiaoling Chen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology , Nanjing 210094, People's Republic of China
| | - Shijian Yang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology , Nanjing 210094, People's Republic of China
| | - Fudong Liu
- Materials Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
| | - Wenpo Shan
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology , Nanjing 210094, People's Republic of China
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39
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Yi T, Zhang Y, Li J, Yang X. Promotional effect of H3PO4 on ceria catalyst for selective catalytic reduction of NO by NH3. CHINESE JOURNAL OF CATALYSIS 2016. [DOI: 10.1016/s1872-2067(15)60977-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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40
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Zhao L, Li C, Wang Y, Wu H, Gao L, Zhang J, Zeng G. Simultaneous removal of elemental mercury and NO from simulated flue gas using a CeO2 modified V2O5–WO3/TiO2 catalyst. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01576f] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The redox cycle (V4+ + Ce4+ ↔ V5+ + Ce3+) over V2O5–WO3/TiO2–CeO2 plays a key role in Hg0 oxidation and NO conversion.
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Affiliation(s)
- Lingkui Zhao
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- PR China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)
| | - Caiting Li
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- PR China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)
| | - Yan Wang
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- PR China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)
| | - Huiyu Wu
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- PR China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)
| | - Lei Gao
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- PR China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)
| | - Jie Zhang
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- PR China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)
| | - Guangming Zeng
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- PR China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)
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41
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Liu Z, Liu Y, Chen B, Zhu T, Ma L. Novel Fe–Ce–Ti catalyst with remarkable performance for the selective catalytic reduction of NOx by NH3. Catal Sci Technol 2016. [DOI: 10.1039/c5cy02278a] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The redox cycle (Ce4+ + Fe2+ ↔ Ce3+ + Fe3+) over the Fe–Ce–Ti catalyst contributes to the activation of NOx and NH3 and thus the formation of reaction intermediates, leading to the high catalytic performance for the NH3-SCR of NOx.
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Affiliation(s)
- Zhiming Liu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Yuxian Liu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Biaohua Chen
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Tianle Zhu
- School of Space and Environment
- Beihang University
- Beijing 100191
- China
| | - Lingling Ma
- Division of Nuclear Technology and Applications
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049
- China
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42
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Zhang Y, Zheng Y, Chen X, Fu B. Fabrication and formation mechanism of Ce2O3–CeO2–CuO–MnO2/CNTs catalysts and application in low-temperature NO reduction with NH3. RSC Adv 2016. [DOI: 10.1039/c6ra10482g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ce2O3–CeO2–CuO–MnO2/CNTs catalysts were synthesized via a redox strategy, and presented 58–85% NO conversion at 80–180 °C.
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Affiliation(s)
- Yanbing Zhang
- College of Materials Science and Engineering
- Fuzhou University
- Fuzhou 350108
- People's Republic of China
| | - Yuying Zheng
- College of Materials Science and Engineering
- Fuzhou University
- Fuzhou 350108
- People's Republic of China
| | - Xuehong Chen
- College of Materials Science and Engineering
- Fuzhou University
- Fuzhou 350108
- People's Republic of China
| | - Binbin Fu
- College of Materials Science and Engineering
- Fuzhou University
- Fuzhou 350108
- People's Republic of China
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43
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Jampaiah D, Ippolito SJ, Sabri YM, Tardio J, Selvakannan PR, Nafady A, Reddy BM, Bhargava SK. Ceria–zirconia modified MnOx catalysts for gaseous elemental mercury oxidation and adsorption. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01534k] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The developed ceria–zirconia modified MnOx catalysts were found to exhibit enhanced Hg0 oxidation and removal performance.
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Affiliation(s)
- Deshetti Jampaiah
- RMIT-IICT Joint Research Centre
- CSIR-Indian Institute of Chemical Technology
- Hyderabad – 500 607
- India
- Centre for Advanced Materials & Industrial Chemistry (CAMIC)
| | - Samuel J. Ippolito
- Centre for Advanced Materials & Industrial Chemistry (CAMIC)
- School of Applied Sciences
- RMIT University
- Melbourne–3001
- Australia
| | - Ylias M. Sabri
- Centre for Advanced Materials & Industrial Chemistry (CAMIC)
- School of Applied Sciences
- RMIT University
- Melbourne–3001
- Australia
| | - James Tardio
- Centre for Advanced Materials & Industrial Chemistry (CAMIC)
- School of Applied Sciences
- RMIT University
- Melbourne–3001
- Australia
| | - P. R. Selvakannan
- Centre for Advanced Materials & Industrial Chemistry (CAMIC)
- School of Applied Sciences
- RMIT University
- Melbourne–3001
- Australia
| | - Ayman Nafady
- Chemistry Department
- College of Science
- King Saud University
- Riyadh
- Saudi Arabia
| | - Benjaram M. Reddy
- RMIT-IICT Joint Research Centre
- CSIR-Indian Institute of Chemical Technology
- Hyderabad – 500 607
- India
| | - Suresh K. Bhargava
- Centre for Advanced Materials & Industrial Chemistry (CAMIC)
- School of Applied Sciences
- RMIT University
- Melbourne–3001
- Australia
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44
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Liu Z, Liu H, Zeng H, Xu Q. A novel Ce–Sb binary oxide catalyst for the selective catalytic reduction of NOx with NH3. Catal Sci Technol 2016. [DOI: 10.1039/c6cy01756h] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synergetic effect between Sb and Ce not only increases the surface acidity of the catalyst but also enhances the redox property, both of which contribute to improving NH3-SCR activity.
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Affiliation(s)
- Zhiming Liu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Haiyan Liu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Hui Zeng
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Qi Xu
- Jiangsu Collaborative Innovation Center for Ecological Building Materials and Environmental Protection Equipments
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province
- Yancheng Institute of Technology
- Yancheng 224051
- China
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45
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Zhang Y, Zheng Y, Zou H, Zhang X. One-step synthesis of ternary MnO2–Fe2O3–CeO2–Ce2O3/CNT catalysts for use in low-temperature NO reduction with NH3. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2015.08.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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