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Ogugua PC, Wang E, Jinyang Z, Wang Q, Su H. Advancements in low-temperature NH 3-SCR of NO x using Ba-based catalysts: a critical review of preparation, mechanisms, and challenges. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:84972-84998. [PMID: 37393212 DOI: 10.1007/s11356-023-27703-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 05/12/2023] [Indexed: 07/03/2023]
Abstract
Presently, selective catalytic reduction (SCR), with either carbon monoxide, urea, hydrocarbons, hydrogen, or ammonia as a reductant, has become a nitrogen oxide (NOx) removal technology (NOx conversion) of many catalytic companies and diesel engine exhaust gas. Although, there exists a serious threat of low-temperature limitations. So far, certain scientists have shown that barium-based (Ba-based) catalysts have the potential to be highly effective at SCR of NOx at low temperatures when ammonia is used as the reducing agent. The process of NOx storage and reduction which alternate SCR is known as the Lean NOx trap. Herein, we give the condensed advancements and production of the catalysts that involve BaO in low-temperature NH3-SCR of NOx, the advantages of BaO catalysts compared to the recently hot electrocatalysis, the stability of BaO catalyst materials, and the condensed advancements and production of the catalysts that involve BaO in low-temperature NH3-SCR of NOx. These catalysts are viewed in the light of their preparation method, particulate, and posture in mixed oxides. Also, the characteristic features of Ba-based catalysts are carefully considered and briefed under the following areas: preparation method and precursor, crystallinity, calcination temperature, morphology, acid sites, the specific surface area for reaction, redox property, and activation energy of catalysts. More to these are the discussions on Eley-Rideal [E-R] and Langmuir-Hinshelwood [L-H] mechanisms, the H2O/SO2 and O2 permissiveness, and the NH3-SCR reaction mechanism over Ba-based catalysts highlighting their possible effects. Finally, we proposed the prospect and the likely future research plan for the low-temperature NH3-SCR of NOx.
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Affiliation(s)
- Paul Chinonso Ogugua
- School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Enlu Wang
- School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Zhou Jinyang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Qi Wang
- School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Huihui Su
- School of China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai, 200240, China
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2
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Protection Effect of Ammonia on CeNbTi NH3-SCR Catalyst from SO2 Poisoning. Catalysts 2022. [DOI: 10.3390/catal12111430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
CeNbTi catalyst was poisoned in different sulfur poisoning atmospheres at 300 °C for 6 h and then was evaluated for selective catalytic reduction (SCR) of NOx with NH3. The catalyst deactivation upon SO2 exposure was effectively inhibited in the presence of NH3. Temperature-programmed decomposition (TPD) analyses were applied to identify deposit species on the poisoned catalysts by comparison with several groups of reference samples. Diffuses reflectance infrared Fourier transform spectroscopy (DRIFTS) over CeNbTi catalysts with different poisoning pretreatments and gas purging sequences were designed to investigate the roles of NH3 in the removal of surface sulfites and sulfates. More ammonium sulfates including ammonium bisulfate and ammonium cerium sulfate were generated instead of inert cerium sulfate in these conditions. The mechanisms about the formation and transformation of surface deposits upon sulfur poisoning w/wo NH3 were explored, which provided a basis for developing Ce-based mixed oxides as SCR catalysts for stationary sources.
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3
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Chen W, Zou R, Wang X. Toward an Atomic-Level Understanding of the Catalytic Mechanism of Selective Catalytic Reduction of NO x with NH 3. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Weibin Chen
- School of Materials Science and Engineering, Peking University, Beijing100871, People’s Republic of China
| | - Ruqiang Zou
- School of Materials Science and Engineering, Peking University, Beijing100871, People’s Republic of China
| | - Xidong Wang
- School of Materials Science and Engineering, Peking University, Beijing100871, People’s Republic of China
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Enriching SO42− Immobilization on α-Fe2O3 via Spatial Confinement for Robust NH3-SCR Denitration. Catalysts 2022. [DOI: 10.3390/catal12090991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The application of iron oxide to NH3-SCR is attractive but largely hindered by its poor acid properties, and surface sulfation is proven to be a prominent way of enhancing the acidity. As such, the method of enriching the sulfate species on iron oxide is crucial for improving the NH3-SCR performance. In the present study, by employing ammonium bisulfate (ABS) as the source of gaseous SO2 for the purpose of trapping, we reported an effective strategy for enhancing the SO42− immobilization on α-Fe2O3 catalyst via spatial confinement in a mesoporous SBA-15 framework. Interestingly, although the presence of the mesopore channel had an adverse effect on the ABS decomposition, which was expected to produce less available SO2, the measured SO42− immobilized on α-Fe2O3 in the mesoporous SBA-15 system was significantly greater than that of the regular SiO2, demonstrating the promoting effect of the spatial confinement on the SO42− enrichment. Further characterizations of the NH3-TPD, NO oxidation, and NH3-SCR performance tests proved that, as a result of the enhanced acidity, the enrichment of SO42− on α-Fe2O3 displayed a clear correlation with the SCR activity. The results of the present study provide an effective strategy for boosting the catalytic performance of iron oxide in NH3-SCR via SO42− enrichment.
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5
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The Emergence of the Ubiquity of Cerium in Heterogeneous Oxidation Catalysis Science and Technology. Catalysts 2022. [DOI: 10.3390/catal12090959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Research into the incorporation of cerium into a diverse range of catalyst systems for a wide spectrum of process chemistries has expanded rapidly. This has been evidenced since about 1980 in the increasing number of both scientific research journals and patent publications that address the application of cerium as a component of a multi-metal oxide system and as a support material for metal catalysts. This review chronicles both the applied and fundamental research into cerium-containing oxide catalysts where cerium’s redox activity confers enhanced and new catalytic functionality. Application areas of cerium-containing catalysts include selective oxidation, combustion, NOx remediation, and the production of sustainable chemicals and materials via bio-based feedstocks, among others. The newfound interest in cerium-containing catalysts stems from the benefits achieved by cerium’s inclusion, which include selectivity, activity, and stability. These benefits arise because of cerium’s unique combination of chemical and thermal stability, its redox active properties, its ability to stabilize defect structures in multicomponent oxides, and its propensity to stabilize catalytically optimal oxidation states of other multivalent elements. This review surveys the origins and some of the current directions in the research and application of cerium oxide-based catalysts.
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Lee G, Ye B, Lee MJ, Chun SY, Jeong B, Kim HD, Jae J, Kim T. Selective catalytic reduction of NO by NH3 over V2O5-WO3 supported by titanium isopropoxide (TTIP)-treated TiO2. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.02.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Wang X, Ren Y, Li Y, Zhang G. Fabrication of 1D/2D BiPO 4/g-C 3N 4 heterostructured photocatalyst with enhanced photocatalytic efficiency for NO removal. CHEMOSPHERE 2022; 287:132098. [PMID: 34509004 DOI: 10.1016/j.chemosphere.2021.132098] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/18/2021] [Accepted: 08/29/2021] [Indexed: 06/13/2023]
Abstract
The visible light photocatalytic removal of NO in air is a promising way. BiPO4 is restricted by its wide band gap and can only be responded to ultraviolet light. Herein, 1D BiPO4 nanorod/2D g-C3N4 heterostructured photocatalyst was successfully synthesized via a facile one-step hydrothermal process for efficient visible light photocatalytic removal of NO. With simulated sunlight irradiation, the photocatalytic NO removal activity of the BiPO4/g-C3N4 (64%) is much higher than that of the pure BiPO4 (7.2%) and g-C3N4 (50%). Its excellent photocatalytic performance was ascribed to broadening the light response range to visible light and boosting the separation and transfer of photogenerated electrons and holes. The NO photocatalytic removal mechanism was proposed by the free radical trapping experiment and in situ DRIFTS research. The present study might induce a new means to design BiPO4-based heterostructured photocatalysts for the removal of NO from air pollution under simulated solar light irradiation.
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Affiliation(s)
- Xiaotian Wang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, State Key Laboratory of Silicate Materials for Architectures, Shenzhen Research Institute, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, People's Republic of China
| | - Yuyu Ren
- Hubei Key Laboratory of Mineral Resources Processing and Environment, State Key Laboratory of Silicate Materials for Architectures, Shenzhen Research Institute, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, People's Republic of China
| | - Yuan Li
- Hubei Key Laboratory of Mineral Resources Processing and Environment, State Key Laboratory of Silicate Materials for Architectures, Shenzhen Research Institute, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, People's Republic of China
| | - Gaoke Zhang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, State Key Laboratory of Silicate Materials for Architectures, Shenzhen Research Institute, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, People's Republic of China; Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450052, China.
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Research advances of rare earth catalysts for catalytic purification of vehicle exhausts − Commemorating the 100th anniversary of the birth of Academician Guangxian Xu. J RARE EARTH 2021. [DOI: 10.1016/j.jre.2021.05.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Fu Z, Zhang G, Tang Z, Zhang H. A Green CeO
2
−WO
3
/TiO
2
Medium‐Low Temperature de‐NO
x
Catalyst for Selective Catalytic Reduction of NO
x
with NH
3. ChemistrySelect 2021. [DOI: 10.1002/slct.202100598] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zihao Fu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, and National Engineering Research Center for Fine Petrochemical Intermediates Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China
- University of Chinese Academy of Sciences Beijing 100039 China
| | - Guodong Zhang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, and National Engineering Research Center for Fine Petrochemical Intermediates Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China
| | - Zhicheng Tang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, and National Engineering Research Center for Fine Petrochemical Intermediates Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China
| | - Haitao Zhang
- Lanzhou Petrochemical Research Center Petrochemical Research Institute, Petro China Lanzhou 730060 China
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10
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Selective Catalytic Reduction of NO by NH3 over Mn–Cu Oxide Catalysts Supported by Highly Porous Silica Gel Powder: Comparative Investigation of Six Different Preparation Methods. Catalysts 2021. [DOI: 10.3390/catal11060702] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
In this study, Mn-based catalysts supported by highly porous silica gel powder (SSA up to 470 m2·g−1 and total pore volume up to 0.8 cm3·g−1) were prepared by six different methods in liquid solutions (electroless metal deposition, stepwise addition of a reducing agent, wet impregnation, incipient wetness impregnation, urea hydrolysis, and ammonia evaporation) and tested for selective catalytic reduction of NOx with ammonia (NH3-SCR de-NOx). Prior to the activity test all the catalysts prepared were characterized by ICP-OES, SEM, EDX mapping, XPS, XRD and N2 adsorption techniques to provide the comprehensive information about their composition and morphology, investigate the dispersion of active components on the carrier surface, identify the chemical forms and structural properties of the catalytically active species of the catalysts prepared. The results revealed that all the methods applied for preparation of SCR de-NOx catalysts can ensure the uniform distribution of Mn species on the carrier surface, however as it is typical for preparation techniques in a liquid phase the significant reduction in SSA and pore volume along with increasing the loading was observed. Considering both the physicochemical properties and the catalytic performance of the catalysts the least effective preparation method was shown to be ammonia evaporation, while the most attractive techniques are incipient wetness impregnation and electroless metal deposition.
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11
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Guan B, Jiang H, Wei Y, Liu Z, Wu X, Lin H, Huang Z. Density functional theory researches for atomic structure, properties prediction, and rational design of selective catalytic reduction catalysts: Current progresses and future perspectives. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111704] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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12
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Si M, Shen B, Adwek G, Xiong L, Liu L, Yuan P, Gao H, Liang C, Guo Q. Review on the NO removal from flue gas by oxidation methods. J Environ Sci (China) 2021; 101:49-71. [PMID: 33334538 DOI: 10.1016/j.jes.2020.08.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 06/12/2023]
Abstract
Due to the increasingly strict emission standards of NOx on various industries, many traditional flue gas treatment methods have been gradually improved. Except for selective catalytic reduction (SCR) and selective non-catalytic reduction (SNCR) methods to remove NOx from flue gas, theoxidation method is paying more attention to NOx removal now because of the potential to simultaneously remove multiple pollutants from flue gas. This paper summarizes the efficiency, reaction conditions, effect factors, and reaction mechanism of NO oxidation from the aspects of liquid-phase oxidation, gas-phase oxidation, plasma technology, and catalytic oxidation. The effects of free radicals and active components of catalysts on NO oxidation and the combination of various oxidation methods are discussed in detail. The advantages and disadvantages of different oxidation methods are summarized, and the suggestions for future research on NO oxidation are put forward at the end. The review on the NO removal by oxidation methods can provide new ideas for future studies on the NO removal from flue gas.
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Affiliation(s)
- Meng Si
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin300401, China
| | - Boxiong Shen
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin300401, China.
| | - George Adwek
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin300401, China; Department of Energy and Environmental Engineering, Mount Kenya University, Thika, Kenya
| | - Lifu Xiong
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin300401, China
| | - Lijun Liu
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin300401, China
| | - Peng Yuan
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin300401, China
| | - Hongpei Gao
- China Huaneng Group Clean Energy Technology Research Institute Co. Ltd., Beijing 102209, China
| | - Cai Liang
- Chengdu Dongfang KWH Environmental Protection Catalysts Co. Ltd., Chengdu 610042, China
| | - Qihai Guo
- TUS Environmental Science and Technology Development Co. Ltd., Yichang 443000, China
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13
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Kim J, Lee S, Kwon DW, Ha HP. Er composition (X)-mediated catalytic properties of Ce1-XErXVO4 surfaces for selective catalytic NOX reduction with NH3 at elevated temperatures. Catal Today 2021. [DOI: 10.1016/j.cattod.2019.05.030] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Abstract
Rare earth elements (REE), originally found in various low-grade deposits in the form of different minerals, are associated with gangues that have similar physicochemical properties. However, the production of REE is attractive due to their numerous applications in advanced materials and new technologies. The presence of the radioactive elements, thorium and uranium, in the REE deposits, is a production challenge. Their separation is crucial to gaining a product with minimum radioactivity in the downstream processes, and to mitigate the environmental and safety issues. In the present study, different techniques for separation of the radioactive elements from REE are reviewed, including leaching, precipitation, solvent extraction, and ion chromatography. In addition, the waste management of the separated radioactive elements is discussed with a particular conclusion that such a waste stream can be employed as a valuable co-product.
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Jiang Y, Yang L, Liang G, Liu S, Gao W, Yang Z, Wang X, Lin R, Zhu X. The poisoning effect of PbO on CeO2-MoO3/TiO2 catalyst for selective catalytic reduction of NO with NH3. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.110877] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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16
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Abid R, Delahay G, Tounsi H. Selective catalytic reduction of NO by NH3 on cerium modified faujasite zeolite prepared from aluminum scraps and industrial metasilicate. J RARE EARTH 2020. [DOI: 10.1016/j.jre.2019.09.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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Zeng Y, Song W, Wang Y, Zhang S, Wang T, Zhong Q. Novel Fe-doped CePO 4 catalyst for selective catalytic reduction of NO with NH 3: The role of Fe 3+ ions. JOURNAL OF HAZARDOUS MATERIALS 2020; 383:121212. [PMID: 31546215 DOI: 10.1016/j.jhazmat.2019.121212] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 09/10/2019] [Accepted: 09/10/2019] [Indexed: 06/10/2023]
Abstract
Novel Fe-doped CePO4 (FexCe1-x) catalyst was firstly successfully synthesized via a simple co-precipitation method and demonstrated excellent NH3-SCR performance in comparison with FePO4 and CePO4. In order to study the promoting effects of Fe3+ ion on the NH3-SCR activity of CePO4 catalyst, various characterizations were conducted. It was found that NH3 capacity of FexCe1-x catalyst was controlled by P sites and depended on their specific surface area. Interestingly, Fe species in FexCe1-x were not a Lewis acid site for NH3 adsorption, but it could promote the activation of NH3. More importantly, Fe3+ doping could induce the redox equilibrium of Fe3+ + Ce3+ ⇆ Fe2+ + Ce4+, which significantly improved redox properties of CePO4 catalyst. Accordingly, improved catalytic activity of FexCe1-x catalysts could be attributed to the collective effects of the higher surface area, better redox properties and easily activated NH3. Among them, superior redox property of FexCe1-x catalysts was the main reason boosting their high catalytic activity. Finally, the reaction process analyzed by in situ DRIFT proposed that the NH3-SCR reaction over CePO4 and FexCe1-x occurred mainly via Eley-Rideal mechanism. We anticipated this work could promote the development of novel NH3-SCR catalyst.
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Affiliation(s)
- Yiqing Zeng
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, PR China
| | - Wang Song
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, PR China
| | - Yanan Wang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, PR China
| | - Shule Zhang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, PR China.
| | - Tianxiao Wang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, PR China
| | - Qin Zhong
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, PR China.
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18
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Zhu N, Shan W, Lian Z, Zhang Y, Liu K, He H. A superior Fe-V-Ti catalyst with high activity and SO 2 resistance for the selective catalytic reduction of NO x with NH 3. JOURNAL OF HAZARDOUS MATERIALS 2020; 382:120970. [PMID: 31465945 DOI: 10.1016/j.jhazmat.2019.120970] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/28/2019] [Accepted: 08/05/2019] [Indexed: 06/10/2023]
Abstract
A series of Fe-V-Ti oxide catalysts were prepared by a co-precipitation method, among which the Fe0.1V0.1TiOx catalyst showed the optimal NH3-SCR performance and excellent SO2 resistance. Fe0.1V0.1TiOx achieved > 90% NOx conversion at 225-450 °C under a GHSV of 200,000 h-1. When introducing SO2 and H2O to the SCR reaction for 24 h, the NOx conversion maintained a level above 93% at 250 °C. The Raman and Mössbauer spectra showed that FeVO4 and Fe2O3 coexisted on the surface of TiO2. In Fe-V-Ti catalysts, the charge interaction between Fe2O3 and FeVO4 as well as the electronic inductive effect between Fe and V species resulted in the improvement of SCR activity and N2 selectivity at high temperatures. The NH3-SCR process on the Fe0.1V0.1TiOx catalyst mainly followed the Eley-Rideal (E-R) reaction mechanism with gaseous NO reacting with adsorbed NH3 adsorbed species.
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Affiliation(s)
- Na Zhu
- Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wenpo Shan
- Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Ningbo Urban Environment Observation and Research Station-NUEORS, Institute of Urban Environment, Chinese Academy of Sciences, Ningbo 315800, China.
| | - Zhihua Lian
- Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yan Zhang
- Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Ningbo Urban Environment Observation and Research Station-NUEORS, Institute of Urban Environment, Chinese Academy of Sciences, Ningbo 315800, China
| | - Kuo Liu
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Hong He
- Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China; Ningbo Urban Environment Observation and Research Station-NUEORS, Institute of Urban Environment, Chinese Academy of Sciences, Ningbo 315800, China; State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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19
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Pomalaza G, Arango Ponton P, Capron M, Dumeignil F. Ethanol-to-butadiene: the reaction and its catalysts. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00784f] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Catalytic conversion of ethanol is a promising technology for producing sustainable butadiene. This paper reviews the reaction and its catalysts, and discusses the challenges their development faces.
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20
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Guo J, Zhang G, Tang Z, Zhang J. Design of Prussian blue analogue-derived double-cone structure Ce–Fe catalysts and their enhanced performance for the selective catalytic reduction of NO x with NH 3. NEW J CHEM 2020. [DOI: 10.1039/d0nj04419a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Prussian blue (PB) and its analogues (PBA) with different structures and adjustable compositions have been recognized as promising materials for catalysis, energy storage, and biological applications.
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Affiliation(s)
- Jie Guo
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- National Engineering Research Center for Fine Petrochemical Intermediates
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
| | - Guodong Zhang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- National Engineering Research Center for Fine Petrochemical Intermediates
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
| | - Zhicheng Tang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- National Engineering Research Center for Fine Petrochemical Intermediates
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
| | - Jiyi Zhang
- School of Petroleum and Chemical
- Lanzhou University of Technology
- Lanzhou 730050
- China
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21
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Huang F, Ye D, Guo X, Zhan W, Guo Y, Wang L, Wang Y, Guo Y. Effect of ceria morphology on the performance of MnO x/CeO 2 catalysts in catalytic combustion of N, N-dimethylformamide. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02384d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
MnOx/CeO2 catalysts were prepared by a deposition–precipitation method, through loading MnOx into ceria supports with different morphologies (nanorods (NRs), nanocubes (NCs) and nano-octahedrons (NOs)).
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Affiliation(s)
- Fengying Huang
- Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Dongsheng Ye
- Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Xiaohan Guo
- Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Wangcheng Zhan
- Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Yun Guo
- Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Li Wang
- Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Yunsong Wang
- Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Yanglong Guo
- Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
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22
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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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23
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Huang J, Huang H, Jiang H, Liu L. The promotional role of Nd on Mn/TiO2 catalyst for the low-temperature NH3‑SCR of NOx. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.07.031] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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24
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Ran X, Li M, Wang K, Qian X, Fan J, Sun Y, Luo W, Teng W, Zhang WX, Yang J. Spatially Confined Tuning the Interfacial Synergistic Catalysis in Mesochannels toward Selective Catalytic Reduction. ACS APPLIED MATERIALS & INTERFACES 2019; 11:19242-19251. [PMID: 31050880 DOI: 10.1021/acsami.9b05437] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Low-temperature selective catalytic reduction of nitrogen oxides (NO x) with NH3 (NH3-SCR) has been identified as a promising strategy to mitigate the pollution of NO x. The fine control of synergistic effect and the suppression of aggregation of the active component, however, are still the challenge because of the weak interaction between the active component and matrix. In this work, a series of Ce-promoted Mn-based heterogeneous catalysts supported on mesoporous silica (SBA-15) with different Mn contents were prepared by two separated impregnation processes. Low-temperature NH3-SCR activity demonstrates that the Mn content in the catalyst has a great influence on the activity of the NH3-SCR reaction. The 20% MnO x-CeO x/SBA-15 catalyst exhibited the best catalytic performance in a broad temperature window. Moreover, it exhibits enhanced resistance to SO2 and H2O and long-term durability during 72 h reaction. The highly dispersive active phase, the formation of solid solution, the high ratio of Ce3+, and the spatial confinement effect largely contribute to the outstanding activity and durability of the 20% MnO x-CeO x/SBA-15 catalyst. Finally, a monolithic catalyst fabricated by the 20% MnO x-CeO x/SBA-15 catalyst powder and cordierite substrate show promising industrial application.
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Affiliation(s)
- Xianqiang Ran
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resources Reuse , Tongji University , Shanghai 200092 , P. R. China
- Shanghai Tongji Clearon Environmental-Protection Equipment Engineering Company, Limited , Shanghai 200092 , P. R. China
| | - Minhan Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering , Donghua University , Shanghai 201620 , P. R. China
| | - Kai Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering , Donghua University , Shanghai 201620 , P. R. China
| | - Xiaoyong Qian
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering , Donghua University , Shanghai 201620 , P. R. China
| | - Jianwei Fan
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resources Reuse , Tongji University , Shanghai 200092 , P. R. China
| | - Yu Sun
- Shanghai Tongji Clearon Environmental-Protection Equipment Engineering Company, Limited , Shanghai 200092 , P. R. China
| | - Wei Luo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering , Donghua University , Shanghai 201620 , P. R. China
| | - Wei Teng
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resources Reuse , Tongji University , Shanghai 200092 , P. R. China
| | - Wei-Xian Zhang
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resources Reuse , Tongji University , Shanghai 200092 , P. R. China
| | - Jianping Yang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering , Donghua University , Shanghai 201620 , P. R. China
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25
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26
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Xu J, Yu H, Zhang C, Guo F, Xie J. Development of cerium-based catalysts for selective catalytic reduction of nitrogen oxides: a review. NEW J CHEM 2019. [DOI: 10.1039/c8nj05420g] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Nitrogen oxides (NOX) are major pollutants of the atmosphere, and selective catalytic reduction of nitrogen oxides using ammonia as a reductant (NH3-SCR) is an effective method to remove nitrogen oxides.
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Affiliation(s)
- Junqiang Xu
- College of Chemistry and Chemical Engineering
- Chongqing University of Technology
- Chongqing 400054
- China
| | - Haijie Yu
- College of Chemistry and Chemical Engineering
- Chongqing University of Technology
- Chongqing 400054
- China
| | - Chuan Zhang
- College of Chemistry and Chemical Engineering
- Chongqing University of Technology
- Chongqing 400054
- China
| | - Fang Guo
- College of Chemistry and Chemical Engineering
- Chongqing University of Technology
- Chongqing 400054
- China
| | - Jiaqing Xie
- College of Chemical and Environmental Engineering
- Sichuan University of Technology
- Zigong 643000
- China
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27
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Xiang J, Du X, Wan Y, Chen Y, Ran J, Zhang L. Alkali-driven active site shift of fast SCR with NH3 on V2O5–WO3/TiO2 catalyst via a novel Eley–Rideal mechanism. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01565e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The heterogeneous SCR reaction obeys the well-known Eley–Rideal mechanism or Langmuir–Hinshelwood mechanism, while fast SCR over alkali-doping catalysts follows the another “E–R” mechanism with adsorbed NO2.
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Affiliation(s)
- Jinyao Xiang
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems
- Ministry of Education of People's Republic of China
- China
- College of Power Engineering
- Chongqing University
| | - Xuesen Du
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems
- Ministry of Education of People's Republic of China
- China
- College of Power Engineering
- Chongqing University
| | - Yuyi Wan
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems
- Ministry of Education of People's Republic of China
- China
- College of Power Engineering
- Chongqing University
| | - Yanrong Chen
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems
- Ministry of Education of People's Republic of China
- China
- College of Power Engineering
- Chongqing University
| | - Jingyu Ran
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems
- Ministry of Education of People's Republic of China
- China
- College of Power Engineering
- Chongqing University
| | - Li Zhang
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems
- Ministry of Education of People's Republic of China
- China
- College of Power Engineering
- Chongqing University
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28
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2D, 3D mesostructured silicas templated mesoporous manganese dioxide for selective catalytic reduction of NOx with NH3. J Colloid Interface Sci 2018; 516:254-262. [DOI: 10.1016/j.jcis.2018.01.048] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 01/08/2018] [Accepted: 01/12/2018] [Indexed: 11/24/2022]
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29
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Zhu L, Zhong Z, Xue J, Xu Y, Wang C, Wang L. NH 3-SCR performance and the resistance to SO 2 for Nb doped vanadium based catalyst at low temperatures. J Environ Sci (China) 2018; 65:306-316. [PMID: 29548402 DOI: 10.1016/j.jes.2017.06.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 05/26/2017] [Accepted: 06/27/2017] [Indexed: 06/08/2023]
Abstract
Niobium oxide as the promoter was doped in the V/WTi catalyst for the selective catalytic reduction (SCR) of NO. The results showed that the addition of Nb2O5 could improve the SCR activity at low temperatures and the 6wt.% additive was an appropriate dosage. The enhanced reaction activity of adsorbed ammonia species and the improved dispersion of vanadium oxide might be the reasons for the elevation of SCR activity at low temperatures. The resistances to SO2 of 3V6Nb/WTi catalyst at different temperatures were investigated. FTIR spectrum and TG-FTIR result indicated that the deposition of ammonium sulfate species was the main deactivation reason at low temperatures, which still exhibited the reactivity with NO above 200°C on the catalyst surface. There was a synergistic effect among NH3, H2O and SO2 that NH3 and H2O both accelerated the catalyst deactivation in the presence of SO2 at 175°C. The thermal treatment at 400°C could regenerate the deactivated catalyst and get SCR activity recovered. The particle and monolith catalysts both kept stable NOx conversion at 225°C with high concentration of H2O and SO2 during the long time tests.
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Affiliation(s)
- Lin Zhu
- Key Laboratory of Energy Thermal Conversion and Control, Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Zhaoping Zhong
- Key Laboratory of Energy Thermal Conversion and Control, Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China.
| | - Jianming Xue
- Guodian Science and Technology Research Institute, Nanjing 210031, China
| | - Yueyang Xu
- Guodian Science and Technology Research Institute, Nanjing 210031, China
| | - Chunhua Wang
- College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Lixia Wang
- Key Laboratory of Energy Thermal Conversion and Control, Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
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30
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Metal‐Free Reduction of NO over a Fullerene‐like Boron Nitride Nanocluster: A Mechanistic Study by DFT Calculations. ChemistrySelect 2018. [DOI: 10.1002/slct.201702812] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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31
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Husnain N, Wang E, Li K, Anwar MT, Mehmood A, Gul M, Li D, Mao J. Iron oxide-based catalysts for low-temperature selective catalytic reduction of NO
x
with NH3. REV CHEM ENG 2018. [DOI: 10.1515/revce-2017-0064] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Selective catalytic reduction (SCR) is now an established NO
x
removal technology for industrial flue gas as well as for diesel engine exhaust gas. However, it is still a big challenge to develop a novel low-temperature catalyst for NH3-SCR of NO
x
, especially at a temperature below 200°C. In the past few years, many studies have demonstrated the potential of iron (Fe)-based catalysts as low-temperature catalysts for NH3-SCR of NO
x
. Herein, we summarize the recent progress and performance of Fe-based catalysts for low-temperature NH3-SCR of NO
x
. Catalysts are divided into three categories: single Fe
x
O
y
, Fe-based multimetal oxide, and Fe-based multimetal oxide with support catalysts. The catalytic activity and selectivity of Fe-based catalysts are systematically analyzed and summarized in light of some key factors such as activation energy, specific surface area, morphology, crystallinity, preparation method and precursor, acid sites, calcination temperature, other metal dopant/substitute, and redox property of catalysts. In addition, H2O/SO2 tolerance and the NH3-SCR reaction mechanism over Fe-based catalysts, including Eley-Rideal and Langmuir-Hinshelwood mechanism, are emphasized. Lastly, the perspectives and future research directions of low-temperature NH3-SCR of NO
x
are also proposed.
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Affiliation(s)
- Naveed Husnain
- School of Mechanical Engineering , Shanghai Jiao Tong University , Shanghai 200240 , China
- Department of Mechanical Engineering , Bahauddin Zakariya University , Multan 60800 , Pakistan
| | - Enlu Wang
- School of Mechanical Engineering , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Kai Li
- School of Mechanical Engineering , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Muhammad Tuoqeer Anwar
- School of Mechanical Engineering , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Aamir Mehmood
- Department of Mechanical Engineering , University of Engineering and Technology Lahore (FSD Campus) , Faisalabad 38000 , Pakistan
| | - Mustabshirha Gul
- Department of Mechanical Engineering , Bahauddin Zakariya University , Multan 60800 , Pakistan
| | - Deli Li
- School of Mechanical Engineering , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Jinda Mao
- School of Mechanical Engineering , Shanghai Jiao Tong University , Shanghai 200240 , China
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32
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Sulfur and Water Resistance of Mn-Based Catalysts for Low-Temperature Selective Catalytic Reduction of NOx: A Review. Catalysts 2018. [DOI: 10.3390/catal8010011] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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33
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The effective promotion of trace amount of Cu on Ce/WO3-ZrO2-TiO2monolithic catalyst for the low-temperature NH3-SCR of NOx. CAN J CHEM ENG 2017. [DOI: 10.1002/cjce.23045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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34
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Wen Z, Du M, Li Y, Wang Z, Xu J, Cen K. Quantum chemistry study on the oxidation of NO catalyzed by ZSM5 supported Mn/Co–Al/Ce. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2017. [DOI: 10.1142/s0219633617500444] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The detailed mechanism of NO oxidation catalyzed by ZSM5 supported Mn/Co–Al/Ce is investigated and revealed by Quantum Chemistry Calculation. A three-step catalytic mechanism for NO oxidation is proposed and studied. Theoretical results show that, the activate energies of reactions catalyzed by ZSM-5 supported Mn/Co (71.1[Formula: see text]kJ/mol/80.6[Formula: see text]kJ/mol) are much lower than that obtained from the direct NO oxidation. This indicates that the ZSM-5 supported Mn/Co has an obvious catalytic effect. When the active center Si is replaced by Al and Ce, the activation energies are further decreased to about 40[Formula: see text]kJ/mol. This indicates that the doping of Al and Ce can obviously improve the catalytic effect. The theoretical study illustrates that the catalysts for NO oxidation not only relate to the supported transition metal such as Co and Mn, but also highly relate to the activity centers such as Al and Ce.
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Affiliation(s)
- Zhengcheng Wen
- College of Science, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Mengmeng Du
- College of Science, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Yuan Li
- College of Science, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Zhihua Wang
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P. R. China
| | - Jiangrong Xu
- College of Science, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Kefa Cen
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P. R. China
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35
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DeNO x performance and characteristic study for transition metals doped iron based catalysts. KOREAN J CHEM ENG 2017. [DOI: 10.1007/s11814-016-0369-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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36
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Novel Fe‐W‐Ce Mixed Oxide for the Selective Catalytic Reduction of NOx with NH3 at Low Temperatures. Catalysts 2017. [DOI: 10.3390/catal7020071] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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37
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Song H, Zhao L, Wang N. Rare earth metals modified Ni–S2O82−/ZrO2–Al2O3 catalysts for n-pentane isomerization. Chin J Chem Eng 2017. [DOI: 10.1016/j.cjche.2016.06.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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38
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LIU X, WU X, WENG D, SHI L. Modification of Cu/ZSM-5 catalyst with CeO2 for selective catalytic reduction of NOx with ammonia. J RARE EARTH 2016. [DOI: 10.1016/s1002-0721(16)60127-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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39
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Zhu L, Zhong Z, Yang H, Wang C. Comparison study of Cu-Fe-Ti and Co-Fe-Ti oxide catalysts for selective catalytic reduction of NO with NH3 at low temperature. J Colloid Interface Sci 2016; 478:11-21. [DOI: 10.1016/j.jcis.2016.05.052] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 05/25/2016] [Accepted: 05/27/2016] [Indexed: 10/21/2022]
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40
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WANG W, LI W, GUO R, CHEN Q, WANG Q, PAN W, HU G. A CeFeOx catalyst for catalytic oxidation of NO to NO2. J RARE EARTH 2016. [DOI: 10.1016/s1002-0721(16)60109-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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41
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Xu B, Xu H, Lin T, Cao Y, Lan L, Li Y, Feng X, Gong M, Chen Y. Promotional effects of Zr on K + -poisoning resistance of CeTiO x catalyst for selective catalytic reductionof NO x with NH 3. CHINESE JOURNAL OF CATALYSIS 2016. [DOI: 10.1016/s1872-2067(15)61102-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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42
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Promotional effects of copper doping on Ti-Ce-Ox for selective catalytic reduction of NO by NH3 at low temperature. J RARE EARTH 2016. [DOI: 10.1016/s1002-0721(16)60024-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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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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44
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Tang C, Zhang H, Dong L. Ceria-based catalysts for low-temperature selective catalytic reduction of NO with NH3. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01487e] [Citation(s) in RCA: 235] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Low-temperature NH3-SCR has attracted considerable attention owing to the vast demand in industrial furnaces and its energy-conserving feature. This review summarizes the recent advances in the application of ceria-based catalysts for low-temperature NH3-SCR.
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Affiliation(s)
- Changjin Tang
- Key Laboratory of Mesoscopic Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- PR China
| | - Hongliang Zhang
- Analysis and Testing Central Facility
- Anhui University of Technology
- Maanshan 243002
- PR China
| | - Lin Dong
- Key Laboratory of Mesoscopic Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- PR China
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45
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Direct synthesis of hollow polyhedral ceria nano powders via a template-free mixed solvothermal route. J RARE EARTH 2015. [DOI: 10.1016/s1002-0721(14)60501-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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46
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Chen Y, Wang J, Yan Z, Liu L, Zhang Z, Wang X. Promoting effect of Nd on the reduction of NO with NH3 over CeO2 supported by activated semi-coke: an in situ DRIFTS study. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01577k] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The morphology and NH3-SCR performance of CeO2-Nd/ASC catalysts.
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Affiliation(s)
- Yan Chen
- Beijing Key Laboratory for Solid Waste Utilization and Management
- College of Engineering Peking University
- Beijing 100871
- China
| | - Jinping Wang
- Beijing Key Laboratory for Solid Waste Utilization and Management
- College of Engineering Peking University
- Beijing 100871
- China
| | - Zheng Yan
- Liaoning Key Laboratory of Clean Energy and Institute of Clean Energy and Environmental Engineering
- College of Energy and Environment
- Shenyang Aerospace University
- China
| | - Lili Liu
- Beijing Key Laboratory for Solid Waste Utilization and Management
- College of Engineering Peking University
- Beijing 100871
- China
| | - Zuotai Zhang
- Beijing Key Laboratory for Solid Waste Utilization and Management
- College of Engineering Peking University
- Beijing 100871
- China
| | - Xidong Wang
- Beijing Key Laboratory for Solid Waste Utilization and Management
- College of Engineering Peking University
- Beijing 100871
- China
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