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Luo J, Zhang H, Liu Z, Zhang Z, Pan Y, Liang X, Wu S, Xu H, Xu S, Jiang C. A review of regeneration mechanism and methods for reducing soot emissions from diesel particulate filter in diesel engine. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:86556-86597. [PMID: 37421534 DOI: 10.1007/s11356-023-28405-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 06/19/2023] [Indexed: 07/10/2023]
Abstract
With the global emphasis on environmental protection and the proposal of the climate goal of "carbon neutrality," countries around the world are calling for reductions in carbon dioxide, nitrogen oxide, and particulate matter pollution. These pollutants have severe impacts on human lives and should be effectively controlled. Engine exhaust is the most serious pollution source, and diesel engine is an important contributor to particulate matter. Diesel particulate filter (DPF) technology has proven to be an effective technology for soot control at the present and in the future. Firstly, the exacerbating effect of particulate matter on human infectious disease viruses is discussed. Then, the latest developments in the influence of key factors on DPF performance are reviewed at different observation scales (wall, channel, and entire filter). In addition, current soot catalytic oxidant schemes are presented in the review, and the significance of catalyst activity and soot oxidation kinetic models are highlighted. Finally, the areas that need further research are determined, which has important guiding significance for future research. Current catalytic technologies are focused on stable materials with high mobility of oxidizing substances and low cost. The challenge of DPF optimization design is to accurately calculate the balance between soot and ash load, DPF regeneration control strategy, and exhaust heat management strategy.
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Affiliation(s)
- Jianbin Luo
- School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, 545006, Liuzhou, China
| | - Haiguo Zhang
- School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, 545006, Liuzhou, China
| | - Zhonghang Liu
- School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, 545006, Liuzhou, China
| | - Zhiqing Zhang
- School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, 545006, Liuzhou, China.
| | - Yajuan Pan
- School of Mechanical Engineering, Liuzhou Institute of Technology, Liuzhou, 545616, China
| | - Xiguang Liang
- Liuzhou Jindongfang Automotive Parts Co., Ltd., Liuzhou, 545036, China
| | - Shizhuo Wu
- Liuzhou Branch, Aisn AUTO R&D Co., Ltd., Liuzhou, 545616, China
| | - Hongxiang Xu
- School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, 545006, Liuzhou, China
| | - Song Xu
- School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, 545006, Liuzhou, China
| | - Chunmei Jiang
- Institute of the New Energy and Energy-Saving & Emission-Reduction, Guangxi University of Science and Technology, Liuzhou, 545006, China
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Luo J, Tie Y, Tang L, Li Y, Xu H, Liu Z, Li M, Zhang H, Zhang Z. Effect of regeneration method and ash deposition on diesel particulate filter performance: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:45607-45642. [PMID: 36820972 DOI: 10.1007/s11356-023-25880-2] [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: 12/08/2022] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
As countries around the world pay more attention to environmental protection, the corresponding emission regulations have become more stringent. Exhaust pollutants cause great harm to the environment and people, and diesel engines are one of the most important sources of pollution. Diesel particulate filter (DPF) technology has proven to be the most effective way to control and treat soot. In this paper, we review the latest research progress on DPF regeneration and ash. Passive regeneration, active regeneration, non-thermal plasma-assisted DPF regeneration and regeneration mechanism, DPF regeneration control assisted by engine management, and uncontrolled DPF regeneration and its control strategy are mainly introduced. In addition, the source, composition, and deposition of ash are described in detail, as well as the effect of ash on the DPF pressure drop and catalytic performance. Finally, the issues that need to be further addressed in DPF regeneration research are presented, along with challenges and future work in ash research. Over all, composite regeneration is still the mainstream regeneration method. The formation of ash is complex and there are still many unanswered questions that require further in-depth research.
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Affiliation(s)
- Jianbin Luo
- School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, China
- Institute of the New Energy and Energy-Saving & Emission-Reduction, Guangxi University of Science and Technology, Liuzhou, 545006, China
| | - Yuanhao Tie
- School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, China
- Institute of the New Energy and Energy-Saving & Emission-Reduction, Guangxi University of Science and Technology, Liuzhou, 545006, China
| | - Lifei Tang
- Liuzhou Wuling New Energy Automobile Co., Ltd., Liuzhou, 545616, China
| | - Yuan Li
- Liuzhou Wuling Automobile Industry Co., Ltd, Liuzhou, 545007, China
| | - Hongxiang Xu
- School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, China
- Institute of the New Energy and Energy-Saving & Emission-Reduction, Guangxi University of Science and Technology, Liuzhou, 545006, China
| | - Zhonghang Liu
- School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, China
- Institute of the New Energy and Energy-Saving & Emission-Reduction, Guangxi University of Science and Technology, Liuzhou, 545006, China
| | - Mingsen Li
- School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, China
- Institute of the New Energy and Energy-Saving & Emission-Reduction, Guangxi University of Science and Technology, Liuzhou, 545006, China
| | - Haiguo Zhang
- School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, China
- Institute of the New Energy and Energy-Saving & Emission-Reduction, Guangxi University of Science and Technology, Liuzhou, 545006, China
| | - Zhiqing Zhang
- School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, China.
- Institute of the New Energy and Energy-Saving & Emission-Reduction, Guangxi University of Science and Technology, Liuzhou, 545006, China.
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Yang Y, Fang J, Meng Z, Pu P, Zhang Q, Yi C, Pan S, Li Y. Catalytic activity and influence factors of Mn-Ce mixed oxides by hydrothermal method on diesel soot combustion. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Ganiger S, Patil SS, Dasari HP, Priyanka R, Kollimarla S. Printex-U soot oxidation kinetic behaviour over Alumina and Quartz. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2021.117016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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5
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Zhang F, Zhu X, Wu H, Wu X, Zhou Z, Chen G, Yang G. Activity and Stability of Cu‐Based Spinel‐Type Complex Oxides for Diesel Soot Combustion. ChemistrySelect 2021. [DOI: 10.1002/slct.202102899] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Fei Zhang
- Faculty of Maritime and Transportation Ningbo University 169# Qixing South Road, Beilun District Ningbo Zhejiang Province 315211 China
| | - Xinbo Zhu
- Faculty of Maritime and Transportation Ningbo University 169# Qixing South Road, Beilun District Ningbo Zhejiang Province 315211 China
| | - Hanpeng Wu
- Faculty of Maritime and Transportation Ningbo University 169# Qixing South Road, Beilun District Ningbo Zhejiang Province 315211 China
| | - Xiqiang Wu
- Faculty of Maritime and Transportation Ningbo University 169# Qixing South Road, Beilun District Ningbo Zhejiang Province 315211 China
| | - Zijian Zhou
- State Key Laboratory of Coal Combustion School of Energy and Power Engineering Huazhong University of Science and Technology 1037# Luoyu Road, Hongshan District Wuhan Hubei province 430074 China
| | - Geng Chen
- Faculty of Maritime and Transportation Ningbo University 169# Qixing South Road, Beilun District Ningbo Zhejiang Province 315211 China
| | - Guohua Yang
- Faculty of Maritime and Transportation Ningbo University 169# Qixing South Road, Beilun District Ningbo Zhejiang Province 315211 China
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Xiong J, Zhang P, Li Y, Wei Y, Zhang Y, Liu J, Zhao Z. Ordered macro-mesoporous nanostructure of Pd/ZrO2 catalyst for boosting catalytic NO-assisted soot oxidation. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116635] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Lv C, Chen H, Hu M, Ai T, Fu H. Nano-oxides washcoat for enhanced catalytic oxidation activity toward the perovskite-based monolithic catalyst. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:37142-37157. [PMID: 33709317 DOI: 10.1007/s11356-021-13354-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 03/04/2021] [Indexed: 06/12/2023]
Abstract
In order to explore a superior washcoat material to give full play to the catalytic activity of perovskite active components on the monolithic catalysts, three novel types of LaCoO3/washcoat/cordierite monolith catalysts were prepared by a facile two-step procedure which employed the cordierite honeycomb ceramic as the monolith substrate, the nano-oxides (ZrO2, ɤ-Al2O3, TiO2) as the washcoat, and the perovskite of LaCoO3 as the active components. The blank cordierite, powdered LaCoO3, semi-manufactured monolithic catalysts (washcoat/cordierite), and manufactured monolithic catalysts (LaCoO3/washcoat/cordierite) were characterized by XRD, SEM, XPS, N2 adsorption-desorption, H2-TPR, and ultrasonic test, and their catalytic activities and catalytic stability were evaluated by the toluene oxidation test. The research results indicate that the nanoparticles coated on the cordierite substrate as the washcoat can give full play to the catalytic ability of the LaCoO3 active components and also showed high catalytic stability. However, the catalytic properties of the monolithic catalysts vary notably with the species of nano-washcoat. Among all the catalysts, the porous honeycomb surface structure, uniform distribution, high ratio of surface adsorbed oxygen, and strong reducing ability together give the LaCoO3/ZrO2/cordierite monolithic catalyst the highest catalytic activity on the oxidation of toluene at low temperature, which could be attributed to the excellent interactions of perovskite and nano-ZrO2 washcoat. Therefore, the nano-oxides, especially the nano-ZrO2, have a broad practical application potential for toluene oxidation at low temperature as the washcoat of perovskite-based monolithic catalysts.
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Affiliation(s)
- Chunwang Lv
- School of Energy Power and Mechanical Engineering, North China Electric Power University, Baoding, 071003, China
| | - Hongwei Chen
- School of Energy Power and Mechanical Engineering, North China Electric Power University, Baoding, 071003, China.
| | - Mingjiang Hu
- School of Energy and Building Environmental Engineering, Henan University of Urban Construction, Pingdingshan, 467036, China
| | - Tianchao Ai
- School of Energy Power and Mechanical Engineering, North China Electric Power University, Baoding, 071003, China
| | - Haoka Fu
- School of Energy and Building Environmental Engineering, Henan University of Urban Construction, Pingdingshan, 467036, China
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Cortés-Reyes M, Herrera C, Larrubia MÁ, Alemany LJ. Understanding of Soot Removal Mechanism over DeNO x-Catalysts as Passive Converters. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c05363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marina Cortés-Reyes
- Departamento de Ingeniería Química, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, Málaga E-29071, Spain
| | - Concepción Herrera
- Departamento de Ingeniería Química, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, Málaga E-29071, Spain
| | - M. Ángeles Larrubia
- Departamento de Ingeniería Química, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, Málaga E-29071, Spain
| | - Luis J. Alemany
- Departamento de Ingeniería Química, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, Málaga E-29071, Spain
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9
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Kinetic analysis of morphologies and crystal planes of nanostructured CeO2 catalysts on soot oxidation. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115891] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Catalytic Combustion of Dimethyl Disulfide on Bimetallic Supported Catalysts Prepared by the Wet-Impregnation Method. Catalysts 2019. [DOI: 10.3390/catal9120994] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
In this paper, the catalytic combustion of DMDS (dimethyl disulfide, CH3SSCH3) over bimetallic supported catalysts were investigated. It was confirmed that Cu/γ-Al2O3-CeO2 showed best catalytic performance among the five single-metal catalysts. Furthermore, six different metals were separately added into Cu/γ-Al2O3-CeO2 to investigate the promoting effect. The experiments revealed Pt as the most effective promoter and the best catalytic performance was achieved as the adding amount of 0.3 wt%. The characterization results indicated that high activity and resistance to sulfur poisoning of Cu-Pt/γ-Al2O3-CeO2 could be attributed to the synergistic effect between Cu and Pt.
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11
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Catalytic Combustion of Diesel Soot on Ce/Zr Series Catalysts Prepared by Sol-Gel Method. Catalysts 2019. [DOI: 10.3390/catal9080646] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Cerium-zirconium (Ce-Zr) solid solutions have been extensively used in a wide variety of catalytic processes due to their unique catalytic features in conjunction with lower cost compared to noble metal-based systems. A series of Ce-Zr-based catalysts was prepared by the sol-gel method. The structure and morphology of these catalysts were characterized by X-ray diffraction, thermogravimetric-differential scanning calorimetry, scanning electron microscopy, energy dispersive spectroscopy, and X-ray photoelectron spectroscopy. Furthermore, investigation on catalytic performance was carried out by constructing a test platform, and the result indicated that the catalysts apparently decreased the soot ignition temperature. These catalysts exhibited higher catalytic activity for soot oxidation under narrow contact conditions. The results revealed that some soot particles could react with adsorbed oxygen, and other part of diesel soot reacted with lattice oxygen. The activity of these catalysts was attributed to synergistic effect arising from the combination of K/Co/Zr and Ce-Zr solid solution, which led to the decrease in the ignition temperature to 294 °C (data from the test platform). The catalyst still keeps good stability and catalytic activity after the cycle oxidation experiment. A reaction pathway was proposed to explain catalytic combustion process of soot, i.e., combination of K/Co/Zr with Ce-Zr solid solution reduced the binding energy of Ce-Zr solid solution, which was conducive to provide more active sites to release the active oxygen (O2−) or lattice oxygen (O2−).
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Zhai G, Wang J, Chen Z, Yang S, Men Y. Highly enhanced soot oxidation activity over 3DOM Co 3O 4-CeO 2 catalysts by synergistic promoting effect. JOURNAL OF HAZARDOUS MATERIALS 2019; 363:214-226. [PMID: 30308360 DOI: 10.1016/j.jhazmat.2018.08.065] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 08/07/2018] [Accepted: 08/20/2018] [Indexed: 06/08/2023]
Abstract
Three-dimensionally ordered macroporous (3DOM) Co3O4-CeO2 catalysts with controllable Co/Ce molar ratios synthesized by colloidal crystal template method were developed to catalyze the NOx-assisted soot oxidation for the first time, and the obtained 3DOM Co3O4-CeO2 catalysts exhibited highly enhanced soot oxidation activity. Detailed characterizations of 3DOM Co3O4-CeO2 catalysts revealed that the highly enhanced soot oxidation activity was originated from the synergistic promoting effect by combining the macroporous effect resulted from the unique 3DOM framework, the chemical nature associated with more Co3+ reactive sites, the surface enrichment of Ce species and the improved redox properties. Meanwhile, the high NOx storage and oxidation capacity resulted from the integrated respective merits of Co3O4 and CeO2 also accounted for the enhanced soot oxidation activity via NOx-assisted mechanism. Furthermore, the 3DOM Co3O4-CeO2 catalysts demonstrated strong stability because of the surface enrichment of Ce species improving the thermal stability and the robust 3DOM framework inhibiting the structural collapse, showing their potential applications under practical conditions.
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Affiliation(s)
- Guangjun Zhai
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
| | - Jinguo Wang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China.
| | - Zimei Chen
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
| | - Shuaifeng Yang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
| | - Yong Men
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China.
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Fang F, Zhao P, Feng N, Chen C, Li X, Liu G, Wan H, Guan G. Construction of a hollow structure in La0.9K0.1CoO3−δ nanofibers via grain size control by Sr substitution with an enhanced catalytic performance for soot removal. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01332f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The hollow structure is formed by Sr2+ doping in La0.9K0.1CoO3−δ nanofibers for decreasing the grain size, which can improve the contact efficiency of soot–catalyst–gas as well as the intrinsic activity, responsible for the enhancement in activity.
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Affiliation(s)
- Fan Fang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites
- Nanjing Tech University
- Nanjing 210009
| | - Peng Zhao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites
- Nanjing Tech University
- Nanjing 210009
| | - Nengjie Feng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites
- Nanjing Tech University
- Nanjing 210009
| | - Chong Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites
- Nanjing Tech University
- Nanjing 210009
| | - Xue Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites
- Nanjing Tech University
- Nanjing 210009
| | - Geng Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites
- Nanjing Tech University
- Nanjing 210009
| | - Hui Wan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites
- Nanjing Tech University
- Nanjing 210009
| | - Guofeng Guan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites
- Nanjing Tech University
- Nanjing 210009
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