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Huang X, Dong F, Zhang G, Tang Z. Design and identify the confinement effect of active site position on catalytic performance for selective catalytic reduction of NO with NH3 at low temperature. J Catal 2023. [DOI: 10.1016/j.jcat.2023.02.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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Kumar A, Dutta S, Kim S, Kwon T, Patil SS, Kumari N, Jeevanandham S, Lee IS. Solid-State Reaction Synthesis of Nanoscale Materials: Strategies and Applications. Chem Rev 2022; 122:12748-12863. [PMID: 35715344 DOI: 10.1021/acs.chemrev.1c00637] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Nanomaterials (NMs) with unique structures and compositions can give rise to exotic physicochemical properties and applications. Despite the advancement in solution-based methods, scalable access to a wide range of crystal phases and intricate compositions is still challenging. Solid-state reaction (SSR) syntheses have high potential owing to their flexibility toward multielemental phases under feasibly high temperatures and solvent-free conditions as well as their scalability and simplicity. Controlling the nanoscale features through SSRs demands a strategic nanospace-confinement approach due to the risk of heat-induced reshaping and sintering. Here, we describe advanced SSR strategies for NM synthesis, focusing on mechanistic insights, novel nanoscale phenomena, and underlying principles using a series of examples under different categories. After introducing the history of classical SSRs, key theories, and definitions central to the topic, we categorize various modern SSR strategies based on the surrounding solid-state media used for nanostructure growth, conversion, and migration under nanospace or dimensional confinement. This comprehensive review will advance the quest for new materials design, synthesis, and applications.
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Affiliation(s)
- Amit Kumar
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Soumen Dutta
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Seonock Kim
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Taewan Kwon
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Santosh S Patil
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Nitee Kumari
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Sampathkumar Jeevanandham
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - In Su Lee
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.,Institute for Convergence Research and Education in Advanced Technology (I-CREATE), Yonsei University, Seoul 03722, Korea
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3
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Tan Y, Li F, Zhao B, Chen W, Tian M. Hydrothermal Synthesis of a Ce-Zr-Ti Mixed Oxide Catalyst with Enhanced Catalytic Performance for a NH 3-SCR Reaction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:14823-14832. [PMID: 34915697 DOI: 10.1021/acs.langmuir.1c02597] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A series of mesoporous CeZrTiOx catalysts were prepared by a facile hydrothermal method. Compared with CeTiOx catalysts synthesized under the same conditions, the catalytic activity and anti-SO2 performance of the Ce1Zr1TiOx catalyst are greatly improved, and at the gas hourly space velocity (GHSV) of 60 000 h-1, the NOx removal efficiency is maintained at 90% in the temperature range of 290-500 °C. The catalytic effect of ZrO2 on the Ce-Ti catalyst NH3-SCR activity was elucidated through a series of characterizations. The results revealed that the doping of Zr could significantly improve and optimize the structure of Ce-Ti catalysts. At the same time, due to the doping of Zr, the synergistic effect between Ce and Zr in the CeZrTiOx catalyst can effectively increase oxygen mobility, total acid content, and surface adsorbed oxygen species and lead to a larger pore volume. In addition, the introduction of ZrO2 made the transformation of Ce4+ into Ce3+ more obvious, and the 2Ce4+ + Zr2+ ↔ 2Ce3+ + Zr4+ reaction greatly improved the reducibility of Ce1Zr1TiOx. Among them, the improvement of SCR performance and H2O/SO2 tolerance is due to the electronic interaction between Zr and Ce.
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Affiliation(s)
- Yifeng Tan
- College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, Guizhou, China
| | - Fan Li
- College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, Guizhou, China
| | - Bing Zhao
- College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, Guizhou, China
| | - Wenlin Chen
- College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, Guizhou, China
| | - Mengkui Tian
- College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, Guizhou, China
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Li Y, Hou Y, Zhang Y, Yang Y, Huang Z. Confinement of MnO x@Fe 2O 3 core-shell catalyst with titania nanotubes: Enhanced N 2 selectivity and SO 2 tolerance in NH 3- SCR process. J Colloid Interface Sci 2021; 608:2224-2234. [PMID: 34772500 DOI: 10.1016/j.jcis.2021.10.078] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/05/2021] [Accepted: 10/14/2021] [Indexed: 10/20/2022]
Abstract
Surface interface regulation is an important research content in the field of heterogeneous catalysis. To improve the interface interaction between the active component and matrix, tremendous efforts have been dedicated to tailoring the morphology, size, and structure of composite catalysts. In this work, we report a confinement strategy to synthesize a series of core-shell catalysts loaded with metal oxides on titania nanotubes (TNTs), which were applied to the selective catalytic reduction of NOx with ammonia. Interestingly, the core-shell catalyst with confinement of TNTs exhibited the remarkable activity at low temperature region, N2 selectivity and sulfur tolerance. Benefiting from the superior interfacial confinement characteristic of TNTs and Fe2O3, strong component interactions, the surface acid sites and strong oxidizability of MnOx were properly regulated, thus obtained the outstanding activity, N2 selectivity and provide chemical protection to effectively prevent SO2 poisoning. As far as the reaction mechanism, we found that the adsorption and reactivity of Lewis acid sites were the dominant factors affecting the activity in the NH3-SCR process by in situ DRIFT spectra. In general, our work provides an innovative strategy for constructing an TNTs-enwrapped nanocomposite with nano-confinement and core-shell structure to improve the low temperature SCR process.
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Affiliation(s)
- Yifan Li
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yaqin Hou
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China.
| | - Yongzhao Zhang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yatao Yang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Zhanggen Huang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
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Chongdar S, Bhattacharjee S, Azad S, Samui S, Dutta S, Bal R, Bhaumik A. Nickel Nanoparticles Immobilized over Mesoporous SBA-15 for Efficient Carbonylative Coupling Reactions Utilizing CO 2: A Spotlight. ACS APPLIED MATERIALS & INTERFACES 2021; 13:40157-40171. [PMID: 34415715 DOI: 10.1021/acsami.1c09942] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Ecofriendly routes for the synthesis of carbamates and carbonylative coupling products such as benzyl formate derivatives are very demanding for both academia and industries. Foreseeing a sustainable green future, we systematically analyzed the synthesis history of both these chemicals, mentioning their pros and cons. As a step towards green chemistry, here we have optimized the reaction conditions for the synthesis of various benzyl formates from corresponding benzyl halides and carbamates from substituted anilines and alkyl halides catalyzed by Ni(0) nanoparticles (NPs) immobilized over amine-functionalized ordered mesoporous SBA-15 material in the presence of CO2 as C1 source. This spotlight on applications is aimed to provide a clear outlook to date regarding the gradual progress in the synthesis of both these aforementioned chemicals and finally addresses further efforts for overcoming the current challenges.
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Affiliation(s)
- Sayantan Chongdar
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Sudip Bhattacharjee
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Shiyana Azad
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Surajit Samui
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Saikat Dutta
- Biological & Molecular Science Laboratory, Amity Institute of Click Chemistry Research & Studies, Amity University, Noida 201303, India
| | - Rajaram Bal
- Light Stock Processing Division, CSIR-Indian Institute of Petroleum, Dehradun 248005, Uttarakhand, India
| | - Asim Bhaumik
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
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Yan R, Lin S, Li Y, Liu W, Mi Y, Tang C, Wang L, Wu P, Peng H. Novel shielding and synergy effects of Mn-Ce oxides confined in mesoporous zeolite for low temperature selective catalytic reduction of NO x with enhanced SO 2/H 2O tolerance. JOURNAL OF HAZARDOUS MATERIALS 2020; 396:122592. [PMID: 32298863 DOI: 10.1016/j.jhazmat.2020.122592] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 03/23/2020] [Accepted: 03/24/2020] [Indexed: 06/11/2023]
Abstract
Nitrogen oxides (NOx) are a primary source of air pollutants from combustion of fossil fuels. Though Mn-Ce based catalysts exhibit superior low temperature activities, their water and SO2 tolerance is inferior to other metal oxide catalysts, due to their strong water adsorption and sulfate species formation tendency at low reaction temperatures. Herein, a confinement strategy was adopted to design and synthesize a novel Mn-Ce based catalyst for selective catalytic reduction of NOx with NH3. The confined MnCeOx catalyst was assembled with a simple one pot method, using a mesoporous zeolite (ZSM-5) as the shell and Mn-Ce oxides as the active core (MnCeOx@Z5). Owing to the zeolite shell's shielding effect and the synergy between the alumina-silica zeolite shell's acidic properties and the mixed oxide cores' redox properties, the novel MnCeOx@Z5 catalyst displayed enhanced water and SO2 resistance as compared to the MnCeOx supported on ZSM-5 (MnCeOx/Z5) and its precursor (MnCeOx@Al-SiO2). Evidently, the zeolite sheath hinders sulfate species formation, and this phenomenon was further investigated by in situ diffuse reflectance infrared Fourier transform spectroscopy (In situ DRIFTS). The novel shielding and acid-redox synergy effect/strategy adopted in this work can be applied to design other high performance deNOx catalysts for air pollution control.
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Affiliation(s)
- Ran Yan
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Sixue Lin
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Yonglong Li
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Wenming Liu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Yangyang Mi
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Changjin Tang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Liang Wang
- Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, 200062 Shanghai, China
| | - Honggen Peng
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China; Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
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7
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Li M, Guo Y, Yang J. Spatially Nanoconfined Architectures: A Promising Design for Selective Catalytic Reduction of NO
x. ChemCatChem 2020. [DOI: 10.1002/cctc.202001024] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- 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
| | - Yangyang Guo
- Beijing Engineering Research Centre of Process Pollution Control National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 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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