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Wu Q, Luan H, Xiao FS. OUP accepted manuscript. Natl Sci Rev 2022; 9:nwac023. [PMID: 36128457 PMCID: PMC9477206 DOI: 10.1093/nsr/nwac023] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/24/2022] [Accepted: 02/18/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Qinming Wu
- Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Huimin Luan
- Key Lab of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310007, China
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52
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Xu L, Martinez A, Hwang SJ, Chaudhuri K, Zones SI, Katz A. On route to one-pot synthesis of delaminated Al-SSZ-70 zeolite via partial substitution of OSDA with CTAOH surfactant. Inorg Chem Front 2022. [DOI: 10.1039/d2qi01105k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Direct synthesis of delaminated layered zeolitic materials aims to synthesize confined catalysts for reactions involving sterically bulky reactants, which are too large to benefit from conventional three-dimensional confinement in micropores.
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Affiliation(s)
- Le Xu
- Department of Chemical and Bimolecular Engineering, University of California Berkeley, Berkeley, CA 94720, USA
| | - Abraham Martinez
- Department of Chemical and Bimolecular Engineering, University of California Berkeley, Berkeley, CA 94720, USA
| | - Son-Jong Hwang
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | | | | | - Alexander Katz
- Department of Chemical and Bimolecular Engineering, University of California Berkeley, Berkeley, CA 94720, USA
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53
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Li S, van de Poll RCJ, Kosinov N, Hensen EJM. Facile synthesis of nanosized mordenite and beta zeolites with improved catalytic performance: non-surfactant diquaternary ammonium compounds as structure-directing agents. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00696k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Nanosized MOR and BEA zeolites were directly synthesized using simple diquaternary ammonium compounds. The nanosized zeolites show improved catalytic performance in Friedel–Crafts and n-alkane hydroconversion reactions.
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Affiliation(s)
- Shaojie Li
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P. O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Rim C. J. van de Poll
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P. O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Nikolay Kosinov
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P. O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Emiel J. M. Hensen
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P. O. Box 513, 5600 MB Eindhoven, The Netherlands
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54
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Qin Z, Wang B, Asano N, Wang L, Zhou Y, Liu X, Shen B, Mintova S, Asahina S, Valtchev V. Towards a comprehensive understanding of mesoporosity in zeolite Y at the single particle level. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00313a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A full understanding of zeolite mesoporosity is not trivial yet is necessary to understand and optimize the catalytic performance of zeolites. The present work reports an integrated approach for the...
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55
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Wang W, Sun Q, Wang Q, Li S, Xu J, Deng F. Heterogeneous parahydrogen induced polarization on Rh-containing silicalite-1 zeolites: effect of the catalyst structure on signal enhancement. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00615d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Parahydrogen-induced polarization (PHIP) on Rh-containing silicalite-1 catalysts is studied using both liquid-state and in situ magic angle spinning NMR techniques and the catalyst structure effect is revealed.
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Affiliation(s)
- Weiyu Wang
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qiming Sun
- Innovation Center for Chemical Sciences, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Qiang Wang
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shenhui Li
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jun Xu
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Feng Deng
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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56
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Shen J, Sun Q, Cao J, Wang P, Jia W, Wang S, Zhao P, Wang Z. A lamellar structure zeolite LTA for CO 2 capture. NEW J CHEM 2022. [DOI: 10.1039/d1nj05908d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Two-dimensional zeolite LTA with a special structure can be used in gas separation.
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Affiliation(s)
- Jie Shen
- College of Materials and Metallurgy, Guizhou University, Guiyang, 550025, China
| | - Qi Sun
- College of Materials and Metallurgy, Guizhou University, Guiyang, 550025, China
| | - Jun Cao
- College of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Peng Wang
- College of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Weilin Jia
- College of Materials and Metallurgy, Guizhou University, Guiyang, 550025, China
| | - Suyang Wang
- College of Materials and Metallurgy, Guizhou University, Guiyang, 550025, China
| | - Ping Zhao
- Geological Brigade 105, Bureau of Geology and Mineral Exploration and Development of Guizhou Province, Guiyang, 550018, China
| | - Zepeng Wang
- Geological Brigade 105, Bureau of Geology and Mineral Exploration and Development of Guizhou Province, Guiyang, 550018, China
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57
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Wang J, Zhang X, Chen L, Lu X, Xia Q, Zhou D. A nucleation-tuned mechanism to prepare centre-crossed zeolite lamellas by the rotating/static switch crystallization strategy. Inorg Chem Front 2022. [DOI: 10.1039/d1qi01394g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Controllable synthesis of zeolite lamellas with different morphology and property by tuning the nucleation process.
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Affiliation(s)
- Jing Wang
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan, 430062, P. R. China
| | - Xinlan Zhang
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan, 430062, P. R. China
| | - Lihua Chen
- State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, P. R. China
| | - Xinhuan Lu
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan, 430062, P. R. China
| | - Qinghua Xia
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan, 430062, P. R. China
| | - Dan Zhou
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan, 430062, P. R. China
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58
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Zhang C, Lin F, Kong L, Ye Z, Pan D, Li H, Li H, Liu P, Zhang Y, Zhang H, Tang Y. c-Axis-penetrated mesoporous MWW zeolite nanosheets: preparation by H 2O 2-induced micro-explosion and their enhanced properties. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00928e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of highly dispersed and c-axis-penetrated mesoporous MWW oligolayers with enhanced properties was prepared via an efficient, green, and controllable method through H2O2-induced micro-explosion.
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Affiliation(s)
- Chunna Zhang
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Feng Lin
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Lingtao Kong
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Zhaoqi Ye
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Di Pan
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Hongbin Li
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - He Li
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Peng Liu
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Yahong Zhang
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Hongbin Zhang
- Institute for Preservation of Chinese Ancient Books, Fudan University Library, Fudan University, Shanghai 200433, China
| | - Yi Tang
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
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60
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Dai H, Lee C, Liu W, Yang T, Claret J, Zou X, Dauenhauer PJ, Li X, Rimer JD. Enhanced Selectivity and Stability of Finned Ferrierite Catalysts in Butene Isomerization. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202113077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Heng Dai
- Department of Chemical and Biomolecular Engineering University of Houston Houston TX 77204 USA
| | - Choongsze Lee
- Department of Chemical Engineering and Materials Science University of Minnesota Minneapolis MN 55455 USA
| | - Wen Liu
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Dalian 116023 China
| | - Taimin Yang
- Department of Materials and Environmental Chemistry Stockholm University 10691 Stockholm Sweden
| | - Jakob Claret
- Department of Chemical and Biomolecular Engineering University of Houston Houston TX 77204 USA
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry Stockholm University 10691 Stockholm Sweden
| | - Paul J. Dauenhauer
- Department of Chemical Engineering and Materials Science University of Minnesota Minneapolis MN 55455 USA
| | - Xiujie Li
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Dalian 116023 China
| | - Jeffrey D. Rimer
- Department of Chemical and Biomolecular Engineering University of Houston Houston TX 77204 USA
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61
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Jain R, Mallette AJ, Rimer JD. Controlling Nucleation Pathways in Zeolite Crystallization: Seeding Conceptual Methodologies for Advanced Materials Design. J Am Chem Soc 2021; 143:21446-21460. [PMID: 34914871 DOI: 10.1021/jacs.1c11014] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A core objective of synthesizing zeolites for widespread applications is to produce materials with properties and corresponding performances that exceed conventional counterparts. This places an impetus on elucidating and controlling processes of crystallization where one of the most critical design criteria is the ability to prepare zeolite crystals with ultrasmall dimensions to mitigate the deleterious effects of mass transport limitations. At the most fundamental level, this requires a comprehensive understanding of nucleation to address this ubiquitous materials gap. This Perspective highlights recent methodologies to alter zeolite nucleation by using seed-assisted protocols and the exploitation of interzeolite transformations to design advanced materials. Introduction of crystalline seeds in complex growth media used to synthesize zeolites can have wide-ranging effects on the physicochemical properties of the final product. Here we discuss the diverse pathways of zeolite nucleation, recent breakthroughs in seed-assisted syntheses of nanosized and hierarchical materials, and shortcomings for developing generalized guidelines to predict synthesis outcomes. We offer a critical analysis of state-of-the-art approaches to tailor zeolite crystallization wherein we conceptualize whether parallels between network theory and zeolite synthesis can be instrumental for translating key findings of individual discoveries across a broader set of zeolite crystal structures and/or synthesis conditions.
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Affiliation(s)
- Rishabh Jain
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204, United States
| | - Adam J Mallette
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204, United States
| | - Jeffrey D Rimer
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204, United States
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62
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Li S, Shi H, Wang S, Li Z, Wang P, Liu X, Quan Y, Dong M, Wang J, Fan W. Assembly of Silicalite-1 Crystals Like Toy Lego Bricks into One-, Two-, and Three-Dimensional Architectures for Enhancing Its Adsorptive Separation and Catalytic Performances. ACS APPLIED MATERIALS & INTERFACES 2021; 13:58085-58095. [PMID: 34826222 DOI: 10.1021/acsami.1c15226] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Many researchers have contributed to the assembly of zeolitic nanosheets and nanocrystallites into three-dimensional (3D) networks as it can remarkably improve the catalytic and/or adsorptive performances of zeolites. However, the applications of these synthesized materials are seriously limited because of low hydrothermal stability. A highly interesting strategy, but a great challenge, is the alignment of well-crystallized zeolite crystals into desirable architectures. Here, well-crystallized silicalite-1 crystals are assembled like toy Lego bricks into one-dimensional (1D), two-dimensional (2D), and three-dimensional (3D) architectures, and the assembly mechanism is investigated by combining elaborate experiments, in situ spectroscopy, and theoretical calculations. A 1D architecture was formed by stacking crystals along the b axis with the assistance of ethanol that is selectively adsorbed on (100) and (001) crystal facets. Such adsorption increases the condensation energy barriers along a and c axes, but facilitates the condensation between (010) facets. The assembly of the crystals into well-arrayed 2D architectures is achieved using both ethanol and benzaldehyde because of their preferable adsorption on the (001) facet. When an amphiphilic copolymer (P123) was further added in the gel along with the substitution of ethanol by 1-propanol, a 3D network was fabricated by the agglomeration and self-pillaring of the 2D Lego bricks possibly with P123 aggregates as the substrate matrix. Excitingly, upon alignment of crystals into 2D architectures, the adsorptive selectivity of 1-butanol (2 wt %) to water of silicalite-1 increases by 45.3 times, while into 3D networks, the catalytic activity for the Beckmann rearrangement of cyclohexanone oxime elevates by 79% along with a great enhancement of catalytic stability.
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Affiliation(s)
- Shiying Li
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 South Taoyuan Road, Taiyuan 030001, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hu Shi
- School of Chemistry and Chemical Engineering, Shanxi University, 92 Wucheng Road, Taiyuan 030006, China
| | - Sen Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 South Taoyuan Road, Taiyuan 030001, China
| | - Zhikai Li
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 South Taoyuan Road, Taiyuan 030001, China
| | - Pengfei Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 South Taoyuan Road, Taiyuan 030001, China
| | - Xingchen Liu
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 South Taoyuan Road, Taiyuan 030001, China
| | - Yanhong Quan
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 South Taoyuan Road, Taiyuan 030001, China
| | - Mei Dong
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 South Taoyuan Road, Taiyuan 030001, China
| | - Jianguo Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 South Taoyuan Road, Taiyuan 030001, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weibin Fan
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 South Taoyuan Road, Taiyuan 030001, China
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63
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Dai H, Lee C, Liu W, Yang T, Claret J, Zou X, Dauenhauer PJ, Li X, Rimer JD. Enhanced Selectivity and Stability of Finned Ferrierite Catalysts in Butene Isomerization. Angew Chem Int Ed Engl 2021; 61:e202113077. [PMID: 34877748 DOI: 10.1002/anie.202113077] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Indexed: 11/09/2022]
Abstract
Designing zeolite catalysts with improved mass transport properties is crucial for restrictive networks of either one- or two-dimensional pore topologies. Here, we demonstrate the synthesis of finned ferrierite (FER), a commercial zeolite with two-dimensional pores, where protrusions on crystal surfaces behave as pseudo nanoparticles. Catalytic tests of 1-butene isomerization reveal a 3-fold enhancement of catalyst lifetime and an increase of 12 % selectivity to isobutene for finned samples compared to corresponding seeds. Electron tomography was used to confirm the identical crystallographic registry of fins and seeds. Time-resolved titration of Brønsted acid sites confirmed the improved mass transport properties of finned ferrierite compared to conventional analogues. These findings highlight the advantages of introducing fins through facile and tunable post-synthesis modification to impart material properties that are otherwise unattainable by conventional synthesis methods.
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Affiliation(s)
- Heng Dai
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX 77204, USA
| | - Choongsze Lee
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA
| | - Wen Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Dalian, 116023, China
| | - Taimin Yang
- Department of Materials and Environmental Chemistry, Stockholm University, 10691, Stockholm, Sweden
| | - Jakob Claret
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX 77204, USA
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry, Stockholm University, 10691, Stockholm, Sweden
| | - Paul J Dauenhauer
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA
| | - Xiujie Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Dalian, 116023, China
| | - Jeffrey D Rimer
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX 77204, USA
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Liu Y, Ji T, Zhou T, Lu J, Li H, Liu Y. Preparation of MFI Nanosheets with Distinctive Microstructures via Facile Alkaline Etching. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yi Liu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Linggong Road No. 2, Ganjingzi District, Dalian 116024, China
| | - Taotao Ji
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Linggong Road No. 2, Ganjingzi District, Dalian 116024, China
| | - Tianli Zhou
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Linggong Road No. 2, Ganjingzi District, Dalian 116024, China
| | - Jinming Lu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Linggong Road No. 2, Ganjingzi District, Dalian 116024, China
| | - Hong Li
- School of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology, Dalian 116024, China
| | - Yi Liu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Linggong Road No. 2, Ganjingzi District, Dalian 116024, China
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66
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Le TT, Shilpa K, Lee C, Han S, Weiland C, Bare SR, Dauenhauer PJ, Rimer JD. Core-shell and egg-shell zeolite catalysts for enhanced hydrocarbon processing. J Catal 2021. [DOI: 10.1016/j.jcat.2021.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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67
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Ye Z, Zhao Y, Zhang H, Shi Z, Li H, Yang X, Wang L, Kong L, Zhang C, Sheng Z, Zhang Y, Tang Y. Mesocrystal morphology regulation by "alkali metals ion switch": Re-examining zeolite nonclassical crystallization in seed-induced process. J Colloid Interface Sci 2021; 608:1366-1376. [PMID: 34739995 DOI: 10.1016/j.jcis.2021.10.125] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 02/07/2023]
Abstract
HYPOTHESIS It is a Holy Grail to realize the goal-oriented synthesis of zeotype crystals via direct thermodynamic/kinetic control of crystallization in the simplest inorganic system. Especially, the most commonly used counter cations (i.e., Na+ and K+) are in turn believed to play merely the role of balancing charges and stabilizing frameworks, which make the simple ion-based morphology/porosity control remain big challenges. EXPERIMENTS We re-examined the role of Na+ and K+ to fine-tune the classical/nonclassical crystallization process in a seed-induced system with the simplest composition (Si/Al sources, inorganic alkali, and H2O), and proposed an "ion switch" strategy. By analyzing the multiple growth curves, tracking the precursor evolution, and observing epitaxial crystallization behavior, a distinctive "ion switch"-worked nonclassical mechanism was uncovered. FINDINGS By the "ion switch" strategy, ZSM-5 mesocrystals were fine-regulated with diverse architecture from single crystal to nanocrystallite assembly and intracrystal mesopore-enriched crystal. Such simple ions-controlled crystallization was achieved through microstructure heterogeneity of zeolitic building-blocks triggered by different counterions and their corresponding assembly behavior from oriented attachment to random deposition. Furthermore, this protocol can be extended to a wider H2O/SiO2 range, mixed Na+/K+ systems, and other alkali metal ions from Li+ to Cs+, and ZSM-5 mesocrystals with extended morphologies can be obtained.
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Affiliation(s)
- Zhaoqi Ye
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Yang Zhao
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Hongbin Zhang
- Institute for Preservation of Chinese Ancient Books, Fudan University Library, Fudan University, 200433 Shanghai, China.
| | - Zhangping Shi
- Sinopec Shanghai Research Institute of Petrochemical Technology, Shanghai 201208, China
| | - He Li
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Xue Yang
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Lei Wang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211880, China
| | - Lingtao Kong
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Chunna Zhang
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Zhizheng Sheng
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Yahong Zhang
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Yi Tang
- Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China.
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Li P, Li A, Ruan R, Guo Y, He Q, Zou W, Hou L. Asymmetrical Gemini Surfactants Directed Synthesis Of Hierarchical ZSM‐5 Zeolites and Their Immobilization of Molybdenum Complex for the Catalytic Epoxidation of Alkenes. ChemCatChem 2021. [DOI: 10.1002/cctc.202100716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pan Li
- College of Chemical Engineering Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
| | - Angxi Li
- Engineering Research Center for Metal Rubber School of Mechanical Engineering and Automation Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
| | - Renjie Ruan
- College of Chemical Engineering Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
| | - Yingxiong Guo
- College of Chemical Engineering Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
| | - Qian He
- College of Chemical Engineering Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
| | - Wenhong Zou
- College of Chemical Engineering Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
| | - Linxi Hou
- College of Chemical Engineering Fuzhou University Xueyuan Road No. 2 Fuzhou 350116 P. R. China
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69
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Shao X, Zhang Y, Li J, Wang Z, Zhang X, Wang L, Yuan W, Wang H. Seed-sol-assisted construction of a coffin-shaped multilamellar ZSM-5 single crystal using CTAB. Chem Commun (Camb) 2021; 57:10624-10627. [PMID: 34570132 DOI: 10.1039/d1cc04620a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A coffin-shaped multilamellar ZSM-5 single crystal (CMZS) composed of orderly stacked 2D nanosheets (70-100 nm) was synthesized via the use of cetyltrimethylammonium bromide (CTAB) in the presence of silicalite-1 seed sol. This crystallization strategy opens a facile approach for industrial applications using CMZS in the catalytic conversion of bulky molecules.
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Affiliation(s)
- Xiuli Shao
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, People's Republic of China.
| | - Yu Zhang
- National Energy Group Ningxia Coal Industry Co., Ltd. coal chemical industry technology research institute, Yinchuan, 750411, People's Republic of China
| | - Jun Li
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, People's Republic of China.
| | - Zheng Wang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, People's Republic of China.
| | - Xuan Zhang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, People's Republic of China.
| | - Lin Wang
- National Energy Group Ningxia Coal Industry Co., Ltd. coal chemical industry technology research institute, Yinchuan, 750411, People's Republic of China
| | - Wei Yuan
- National Energy Group Ningxia Coal Industry Co., Ltd. coal chemical industry technology research institute, Yinchuan, 750411, People's Republic of China
| | - Huanting Wang
- Department of Chemical Engineering, Monash University, Melbourne, Australia
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70
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Bioethanol Upgrading to Renewable Monomers Using Hierarchical Zeolites: Catalyst Preparation, Characterization, and Catalytic Studies. Catalysts 2021. [DOI: 10.3390/catal11101162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Bioethanol is one of the most promising renewable resources for the production of important monomers. To date, there have been various processes proposed for bioethanol conversion to renewable monomers. In this review, the catalytic bioethanol upgrading to various types of monomers using hierarchical zeolites as catalysts is illustrated, including the recent design and preparation of hierarchical zeolites for these catalytic processes. The characterizations of catalysts including textural properties, pore architectures, acidic properties, and active species are also exemplified. Moreover, the catalytic studies with various processes of monomer production from bioethanol including bioethanol dehydration, bioethanol to hydrocarbons, and bioethanol to butadiene are revealed in terms of catalytic activities and mechanistic studies. In addition, the future perspectives of these catalytic circumstances are proposed in both economic and sustainable development contexts.
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71
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Hou Z, Mi X, Li X, Liu H. Seed-Assisted Synthesis of ZSM-5 Aggregates Assembled from Regularly Stacked Nanosheets and Their Performance in n-Hexane Aromatization. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01894] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhanggui Hou
- CNOOC Research Institute of Refining and Petrochemicals, Beijing 102200, P. R. China
| | - Xiaotong Mi
- CNOOC Research Institute of Refining and Petrochemicals, Beijing 102200, P. R. China
| | - Xiaoguo Li
- CNOOC Research Institute of Refining and Petrochemicals, Beijing 102200, P. R. China
| | - Hongtao Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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72
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Xu H, Wu P. Two-dimensional zeolites in catalysis: current state-of-the-art and perspectives. CATALYSIS REVIEWS 2021. [DOI: 10.1080/01614940.2021.1948298] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Hao Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, P.R. China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, P.R. China
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73
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Lu P, Ghosh S, Dorneles de Mello M, Kamaluddin HS, Li X, Kumar G, Duan X, Abeykoon M, Boscoboinik JA, Qi L, Dai H, Luo T, Al‐Thabaiti S, Narasimharao K, Khan Z, Rimer JD, Bell AT, Dauenhauer P, Mkhoyan KA, Tsapatsis M. Few‐Unit‐Cell MFI Zeolite Synthesized using a Simple Di‐quaternary Ammonium Structure‐Directing Agent. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104574] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Peng Lu
- Department of Chemical and Biomolecular Engineering &, Institute for NanoBioTechnology Johns Hopkins University 3400 N. Charles Street Baltimore MD 21218 USA
| | - Supriya Ghosh
- Department of Chemical Engineering and Materials Science University of Minnesota 421 Washington Avenue SE Minneapolis MN 55455 USA
| | - Matheus Dorneles de Mello
- Catalysis Center for Energy Innovation University of Delaware Newark DE 19716 USA
- Center for Functional Nanomaterials Brookhaven National Laboratory Upton NY 11973 USA
| | | | - Xinyu Li
- Department of Chemical Engineering and Materials Science University of Minnesota 421 Washington Avenue SE Minneapolis MN 55455 USA
| | - Gaurav Kumar
- Department of Chemical Engineering and Materials Science University of Minnesota 421 Washington Avenue SE Minneapolis MN 55455 USA
| | - Xuekui Duan
- Department of Chemical Engineering and Materials Science University of Minnesota 421 Washington Avenue SE Minneapolis MN 55455 USA
| | - Milinda Abeykoon
- National Synchrotron Light Source II Brookhaven National Laboratory Upton NY 11973 USA
| | - J. Anibal Boscoboinik
- Catalysis Center for Energy Innovation University of Delaware Newark DE 19716 USA
- Center for Functional Nanomaterials Brookhaven National Laboratory Upton NY 11973 USA
- Department of Materials Science and Chemical Engineering State University of New York at Stony Brook 100 Nicolls Rd Stony Brook NY 11794 USA
| | - Liang Qi
- Chemical Sciences Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
- Department of Chemical and Biomolecular Engineering University of California Berkeley CA 94720 USA
| | - Heng Dai
- Department of Chemical and Biomolecular Engineering University of Houston Houston TX 77204 USA
| | - Tianyi Luo
- Department of Chemical and Biomolecular Engineering &, Institute for NanoBioTechnology Johns Hopkins University 3400 N. Charles Street Baltimore MD 21218 USA
| | - Shaeel Al‐Thabaiti
- Department of Chemistry Faculty of Science King Abdulaziz University Jeddah 21589 Saudi Arabia
| | | | - Zaheer Khan
- Department of Chemistry Faculty of Science King Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Jeffrey D. Rimer
- Department of Chemical and Biomolecular Engineering University of Houston Houston TX 77204 USA
| | - Alexis T. Bell
- Chemical Sciences Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
- Department of Chemical and Biomolecular Engineering University of California Berkeley CA 94720 USA
| | - Paul Dauenhauer
- Department of Chemical Engineering and Materials Science University of Minnesota 421 Washington Avenue SE Minneapolis MN 55455 USA
| | - K. Andre Mkhoyan
- Department of Chemical Engineering and Materials Science University of Minnesota 421 Washington Avenue SE Minneapolis MN 55455 USA
| | - Michael Tsapatsis
- Department of Chemical and Biomolecular Engineering &, Institute for NanoBioTechnology Johns Hopkins University 3400 N. Charles Street Baltimore MD 21218 USA
- Applied Physics Laboratory Johns Hopkins University 11100 Johns Hopkins Road Laurel MD 20723 USA
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74
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Lu P, Ghosh S, Dorneles de Mello M, Kamaluddin HS, Li X, Kumar G, Duan X, Abeykoon M, Boscoboinik JA, Qi L, Dai H, Luo T, Al-Thabaiti S, Narasimharao K, Khan Z, Rimer JD, Bell AT, Dauenhauer P, Mkhoyan KA, Tsapatsis M. Few-Unit-Cell MFI Zeolite Synthesized using a Simple Di-quaternary Ammonium Structure-Directing Agent. Angew Chem Int Ed Engl 2021; 60:19214-19221. [PMID: 34189811 PMCID: PMC8457084 DOI: 10.1002/anie.202104574] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/11/2021] [Indexed: 11/12/2022]
Abstract
Synthesis of a pentasil-type zeolite with ultra-small few-unit-cell crystalline domains, which we call FDP (few-unit-cell crystalline domain pentasil), is reported. FDP is made using bis-1,5(tributyl ammonium) pentamethylene cations as structure directing agent (SDA). This di-quaternary ammonium SDA combines butyl ammonium, in place of the one commonly used for MFI synthesis, propyl ammonium, and a five-carbon nitrogen-connecting chain, in place of the six-carbon connecting chain SDAs that are known to fit well within the MFI pores. X-ray diffraction analysis and electron microscopy imaging of FDP indicate ca. 10 nm crystalline domains organized in hierarchical micro-/meso-porous aggregates exhibiting mesoscopic order with an aggregate particle size up to ca. 5 μm. Al and Sn can be incorporated into the FDP zeolite framework to produce active and selective methanol-to-hydrocarbon and glucose isomerization catalysts, respectively.
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Affiliation(s)
- Peng Lu
- Department of Chemical and Biomolecular Engineering &, Institute for NanoBioTechnology, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD, 21218, USA
| | - Supriya Ghosh
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, MN, 55455, USA
| | - Matheus Dorneles de Mello
- Catalysis Center for Energy Innovation, University of Delaware, Newark, DE, 19716, USA.,Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Huda Sharbini Kamaluddin
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Xinyu Li
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, MN, 55455, USA
| | - Gaurav Kumar
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, MN, 55455, USA
| | - Xuekui Duan
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, MN, 55455, USA
| | - Milinda Abeykoon
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - J Anibal Boscoboinik
- Catalysis Center for Energy Innovation, University of Delaware, Newark, DE, 19716, USA.,Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, 11973, USA.,Department of Materials Science and Chemical Engineering, State University of New York at Stony Brook, 100 Nicolls Rd, Stony Brook, NY, 11794, USA
| | - Liang Qi
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA, 94720, USA
| | - Heng Dai
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA
| | - Tianyi Luo
- Department of Chemical and Biomolecular Engineering &, Institute for NanoBioTechnology, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD, 21218, USA
| | - Shaeel Al-Thabaiti
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Katabathini Narasimharao
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Zaheer Khan
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Jeffrey D Rimer
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA
| | - Alexis T Bell
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA, 94720, USA
| | - Paul Dauenhauer
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, MN, 55455, USA
| | - K Andre Mkhoyan
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, MN, 55455, USA
| | - Michael Tsapatsis
- Department of Chemical and Biomolecular Engineering &, Institute for NanoBioTechnology, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD, 21218, USA.,Applied Physics Laboratory, Johns Hopkins University, 11100 Johns Hopkins Road, Laurel, MD, 20723, USA
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75
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Pan Y, Bhowmick A, Wu W, Zhang Y, Diao Y, Zheng A, Zhang C, Xie R, Liu Z, Meng J, Liu D. Titanium Silicalite-1 Nanosheet-Supported Platinum for Non-oxidative Ethane Dehydrogenation. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02676] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ying Pan
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Antara Bhowmick
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Wei Wu
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Yuan Zhang
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Yuxia Diao
- Research Institute of Petroleum Processing, SINOPEC, 18 Xueyuan Road, Beijing 10083, China
| | - Aiguo Zheng
- Research Institute of Petroleum Processing, SINOPEC, 18 Xueyuan Road, Beijing 10083, China
| | - Chen Zhang
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Rongxuan Xie
- Department of Chemical and Biomolecular Engineering, University of Akron, Akron, Ohio 44325, United States
| | - Zixiao Liu
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Jianqiang Meng
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Dongxia Liu
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
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76
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Abstract
Benzene is a widely used commodity chemical, which is currently produced from fossil resources. Lignin, a waste from lignocellulosic biomass industry, is the most abundant renewable source of benzene ring in nature. Efficient production of benzene from lignin, which requires total transformation of Csp2-Csp3/Csp2-O into C-H bonds without side hydrogenation, is of great importance, but has not been realized. Here, we report that high-silica HY zeolite supported RuW alloy catalyst enables in situ refining of lignin, exclusively to benzene via coupling Bronsted acid catalyzed transformation of the Csp2-Csp3 bonds on the local structure of lignin molecule and RuW catalyzed hydrogenolysis of the Csp2-O bonds using the locally abstracted hydrogen from lignin molecule, affording a benzene yield of 18.8% on lignin weight basis in water system. The reaction mechanism is elucidated in detail by combination of control experiments and density functional theory calculations. The high-performance protocol can be readily scaled up to produce 8.5 g of benzene product from 50.0 g lignin without any saturation byproducts. This work opens the way to produce benzene using lignin as the feedstock efficiently. Efficient production of benzene from lignin is attractive and of great importance, but has not been realized. Here, the authors develop a strategy to transform lignin into benzene over a RuW/zeolite catalyst in water, and the yield of benzene can be as high as 18.8% on lignin weight basis.
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77
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Kumar G, Ren L, Pang Y, Li X, Chen H, Gulbinski J, Dauenhauer PJ, Tsapatsis M, Abdelrahman OA. Acid Sites of Phosphorus-Modified Zeosils. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01588] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Gaurav Kumar
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455, United States
| | - Limin Ren
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455, United States
- Catalysis Center for Energy Innovation, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
| | - Yutong Pang
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455, United States
| | - Xinyu Li
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455, United States
| | - Han Chen
- Department of Chemical Engineering, University of Massachusetts Amherst, 686 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Jason Gulbinski
- Department of Chemical Engineering, University of Massachusetts Amherst, 686 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Paul J. Dauenhauer
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455, United States
- Catalysis Center for Energy Innovation, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
| | - Michael Tsapatsis
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455, United States
- Department of Chemical and Biomolecular Engineering & Institute for NanoBioTechnology, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
- Applied Physics Laboratory, Johns Hopkins University, 11100 Johns Hopkins Road, Laurel, Maryland 20723, United States
- Catalysis Center for Energy Innovation, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
| | - Omar A. Abdelrahman
- Department of Chemical Engineering, University of Massachusetts Amherst, 686 North Pleasant Street, Amherst, Massachusetts 01003, United States
- Catalysis Center for Energy Innovation, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
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78
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Li X, Pei C, Gong J. Shale gas revolution: Catalytic conversion of C1–C3 light alkanes to value-added chemicals. Chem 2021. [DOI: 10.1016/j.chempr.2021.02.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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79
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Sheng Z, Li H, Du K, Gao L, Ju J, Zhang Y, Tang Y. Observing a Zeolite Nucleus (Subcrystal) with a Uniform Framework Structure and Its Oriented Attachment without Single-Molecule Addition. Angew Chem Int Ed Engl 2021; 60:13444-13451. [PMID: 33835648 DOI: 10.1002/anie.202102621] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 04/05/2021] [Indexed: 02/03/2023]
Abstract
Multiple and complex crystallization process of zeolite including complementary single-molecule condensation and particle assembly, and alternately dominant nucleation and growth behavior, plays the critical role in zeolite crystallization but meanwhile makes us hard to study the respective effects. Herein, we strip nuclei from the synthetic solution and find that high-ordered nucleus (subcrystal) is the premise to ignite high-speed growth of zeolite crystal. The high-ordered subcrystals with the size of only 6-10 nm possess regular aperture structure and microporous area similar to zeolite nanocrystal. Interestingly, a unitary oriented aggregation process of the subcrystals towards nanosheets is well observed and characterized where single-molecule addition process is greatly repressed. If a wider range of zeotype nuclei can be expanded, a new synthetic strategy of zeotype materials with heterogeneous framework and active sites may be expected, which may novelize zeolite catalytic properties.
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Affiliation(s)
- Zhizheng Sheng
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), Fudan University, Shanghai, 200433, P. R. China
| | - He Li
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), Fudan University, Shanghai, 200433, P. R. China
| | - Ke Du
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), Fudan University, Shanghai, 200433, P. R. China
| | - Lou Gao
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), Fudan University, Shanghai, 200433, P. R. China
| | - Jing Ju
- College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences (BNLMS), Peking University, Beijing, 100871, P. R. China
| | - Yahong Zhang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), Fudan University, Shanghai, 200433, P. R. China
| | - Yi Tang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), Fudan University, Shanghai, 200433, P. R. China
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80
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Dai J, Zhang H. Recent Advances in Catalytic Confinement Effect within Micro/Meso-Porous Crystalline Materials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2005334. [PMID: 33728734 DOI: 10.1002/smll.202005334] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 10/14/2020] [Indexed: 06/12/2023]
Abstract
Micro/meso-porous crystalline materials with a well-defined pore structure, such as zeolites, carbon nanotubes, and metal-organic frameworks, are of great significance in the development of catalytic systems for scientific and industrial demands. The confinement effect aroused by pore features of porous crystalline materials has triggered great interest in heterogeneous catalysis. Catalytic reactions in confined spaces exhibit unique behaviors compared to those observed on bulk materials. More interestingly, chemical reactivity can be modulated in different ways by the confinement effect, despite the fact that the mechanism on how the confinement effect changes the reaction remains unclear. In this review, a systematic discussion and fundamental understanding is provided concerning the concept of confinement effect, highlighting the impact of confinement effects on diffusion, adsorption/desorption, and catalytic reaction in typical micro/meso-porous crystalline materials, including zeolites, carbon nanotubes, and metal-organic frameworks. Relevant studies demonstrate that confinement effect affords not only shape selectivity against reactants/products, but also modulates surface electron distribution of active species confined within porous environments, thereby successively affecting the catalytic reactivity, selectivity, and stability. This review provides a useful guide for researchers attempting to design excellent porous crystalline catalysts based on the concept of confinement effect in heterogeneous catalysis.
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Affiliation(s)
- Jingjing Dai
- School of Materials Science and Engineering and National Institute for Advanced Materials, Tianjin Key Laboratory for Rare Earth Materials and Applications, Nankai University, Tianjin, 300350, China
| | - Hongbo Zhang
- School of Materials Science and Engineering and National Institute for Advanced Materials, Tianjin Key Laboratory for Rare Earth Materials and Applications, Nankai University, Tianjin, 300350, China
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81
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Jain R, Chawla A, Linares N, García Martínez J, Rimer JD. Spontaneous Pillaring of Pentasil Zeolites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100897. [PMID: 33904205 DOI: 10.1002/adma.202100897] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/17/2021] [Indexed: 06/12/2023]
Abstract
Conventional methods to prepare hierarchical zeolites depend upon the use of organic structure-directing agents and often require multiple synthesis steps with limited product yield and Brønsted acid concentration. Here, it is shown that the use of MEL- or MFI-type zeolites as crystalline seeds induces the spontaneous formation of self-pillared pentasil zeolites, thus avoiding the use of any organic or branching template for the crystallization of these hierarchical structures. The mechanism of formation is evaluated by time-resolved electron microscopy to provide evidence for the heterogeneous nucleation and growth of sequentially branched nanosheets from amorphous precursors. The resulting hierarchical zeolites have large external surface area and high percentages of external acid sites, which markedly improves their catalytic performance in the Friedel-Crafts alkylation and methanol to hydrocarbons reactions. These findings highlight a facile, commercially viable synthesis method to reduce mass-transport limitations and improve the performance of zeolite catalysts.
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Affiliation(s)
- Rishabh Jain
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA
| | - Aseem Chawla
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA
| | - Noemi Linares
- Molecular Nanotechnology Lab, Department of Inorganic Chemistry, University of Alicante, Alicante, 03690, Spain
| | - Javier García Martínez
- Molecular Nanotechnology Lab, Department of Inorganic Chemistry, University of Alicante, Alicante, 03690, Spain
| | - Jeffrey D Rimer
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA
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82
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Zhang Y, Qi L, Lund A, Lu P, Bell AT. Mechanism and Kinetics of Acetone Conversion to Isobutene over Isolated Hf Sites Grafted to Silicalite-1 and SiO 2. J Am Chem Soc 2021; 143:8352-8366. [PMID: 34041912 DOI: 10.1021/jacs.1c01315] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Isolated hafnium (Hf) sites were prepared on Silicalite-1 and SiO2 and investigated for acetone conversion to isobutene. Characterization by IR, 1H MAS NMR, and UV-vis spectroscopy suggests that Hf atoms are bonded to the support via three O atoms and have one hydroxyl group, i.e, (≡SiO)3Hf-OH. In the case of Hf/Silicalite-1, Hf-OH groups hydrogen bond with adjacent Si-OH to form (≡SiO)3Hf-OH···HO-Si≡ complexes. The turnover frequency for isobutene formation from acetone is 4.5 times faster over Hf/Silicalite-1 than Hf/SiO2. Lewis acidic Hf sites promote the aldol condensation of acetone to produce mesityl oxide (MO), which is the precursor to isobutene. For Hf/SiO2, both Hf sites and Si-OH groups are responsible for the decomposition of MO to isobutene and acetic acid, whereas for Hf/Silicalite-1, the (≡SiO)3Hf-OH···HO-Si≡ complex is the active site. Measured reaction kinetics show that the rate of isobutene formation over Hf/SiO2 and Hf/Silicalite-1 is nearly second order in acetone partial pressure, suggesting that the rate-limiting step involves formation of the C-C bond between two acetone molecules. The rate expression for isobutene formation predicts a second order dependence in acetone partial pressure at low partial pressures and a decrease in order with increasing acetone partial pressure, in good agreement with experimental observation. The apparent activation energy for isobutene formation from acetone over Hf/SiO2 is 116.3 kJ/mol, while that for Hf/Silicalite-1 is 79.5 kJ/mol. The lower activation energy for Hf/Silicalite-1 is attributed to enhanced adsorption of acetone and formation of a C-C bond favored by the H-bonding interaction between Hf-OH and an adjacent Si-OH group.
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Affiliation(s)
- Yanfei Zhang
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
| | - Liang Qi
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
| | - Alicia Lund
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
| | - Peng Lu
- Department of Chemical and Biomolecular Engineering & Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Alexis T Bell
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
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83
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Zhao X, Zeng S, Zhang X, Deng Q, Li X, Yu W, Zhu K, Xu S, Liu J, Han L. Generating Assembled MFI Nanocrystals with Reduced
b
‐Axis through Structure‐Directing Agent Exchange Induced Recrystallization. Angew Chem Int Ed Engl 2021; 60:13959-13968. [DOI: 10.1002/anie.202017031] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/29/2021] [Indexed: 12/23/2022]
Affiliation(s)
- Xiaoling Zhao
- UNILAB State Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai 200237 P. R. China
| | - Shu Zeng
- National Engineering Laboratory for Methanol to Olefins Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xueliang Zhang
- School of Chemical Science and Engineering Tongji University Shanghai 200092 P. R. China
- School of Chemical and Chemical Engineering Shanghai Jiao Tong University Shanghai 200024 China
| | - Quanzheng Deng
- School of Chemical Science and Engineering Tongji University Shanghai 200092 P. R. China
| | - Xiujie Li
- National Engineering Laboratory for Methanol to Olefins Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Wenguang Yu
- National Engineering Laboratory for Methanol to Olefins Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Kake Zhu
- UNILAB State Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai 200237 P. R. China
| | - Shutao Xu
- National Engineering Laboratory for Methanol to Olefins Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Jichang Liu
- UNILAB State Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai 200237 P. R. China
| | - Lu Han
- School of Chemical Science and Engineering Tongji University Shanghai 200092 P. R. China
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84
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Generating Assembled MFI Nanocrystals with Reduced
b
‐Axis through Structure‐Directing Agent Exchange Induced Recrystallization. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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85
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Jia X, Jiang J, Zou S, Han L, Zhu H, Zhang Q, Ma Y, Luo P, Wu P, Mayoral A, Han X, Cheng J, Che S. Library Creation of Ultrasmall Multi‐metallic Nanoparticles Confined in Mesoporous MFI Zeolites. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Xiaoli Jia
- School of Chemistry and Chemical Engineering State Key Laboratory of Metal Matrix Composites Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Jingang Jiang
- Shanghai Key Laboratory of Green Chemical Science and Chemical Process School of Chemistry and Molecular Engineering East China Normal University 3663 North Zhongshan Road Shanghai 200062 P. R. China
| | - Shihui Zou
- Key Lab of Applied Chemistry of Zhejiang Province Department of Chemistry Zhejiang University 38 Zheda Road Hangzhou 310036 P. R. China
| | - Lu Han
- Department School of Chemical Science and Engineering Tongji University 1239 Siping Road Shanghai 200092 P. R. China
| | - Haiyin Zhu
- Center for High-Resolution Electron Microscopy (CħEM) School of Physical Science and Technology ShanghaiTech University 393 Middle Huaxia Road, Pudong Shanghai 201210 P. R. China
| | - Qing Zhang
- Center for High-Resolution Electron Microscopy (CħEM) School of Physical Science and Technology ShanghaiTech University 393 Middle Huaxia Road, Pudong Shanghai 201210 P. R. China
| | - Yue Ma
- Shanghai Key Laboratory of Green Chemical Science and Chemical Process School of Chemistry and Molecular Engineering East China Normal University 3663 North Zhongshan Road Shanghai 200062 P. R. China
| | - Peng Luo
- Shanghai Key Laboratory of Green Chemical Science and Chemical Process School of Chemistry and Molecular Engineering East China Normal University 3663 North Zhongshan Road Shanghai 200062 P. R. China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemical Science and Chemical Process School of Chemistry and Molecular Engineering East China Normal University 3663 North Zhongshan Road Shanghai 200062 P. R. China
| | - Alvaro Mayoral
- Center for High-Resolution Electron Microscopy (CħEM) School of Physical Science and Technology ShanghaiTech University 393 Middle Huaxia Road, Pudong Shanghai 201210 P. R. China
- Instituto de Nanociencia Materiales de Aragon (INMA-CSIC) University of Zaragoza 12, Calle de Pedro Cerbuna 50009 Zaragoza Spain
| | - Xinbao Han
- School of Chemistry and Chemical Engineering State Key Laboratory of Metal Matrix Composites Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Jun Cheng
- College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 P. R. China
| | - Shunai Che
- School of Chemistry and Chemical Engineering State Key Laboratory of Metal Matrix Composites Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
- Department School of Chemical Science and Engineering Tongji University 1239 Siping Road Shanghai 200092 P. R. China
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86
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Jia X, Jiang J, Zou S, Han L, Zhu H, Zhang Q, Ma Y, Luo P, Wu P, Mayoral A, Han X, Cheng J, Che S. Library Creation of Ultrasmall Multi-metallic Nanoparticles Confined in Mesoporous MFI Zeolites. Angew Chem Int Ed Engl 2021; 60:14571-14577. [PMID: 33826203 DOI: 10.1002/anie.202103007] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/03/2021] [Indexed: 11/06/2022]
Abstract
The development of materials integrated with ultrasmall multi-metal nanoparticles (UMMNs) and mesoporous zeolite is a considerable challenge in chemistry and materials science. We designed a trifunctional surfactant, in which the pyridyl benzimidazole in the hydrophobic tail generates the mesopores through π-π stacking; the diquaternary ammonium in the hydrophilic headgroup direct the formation of MFI zeolite sheets and the nitrogen atoms in the heterocyclic rings coordinate with various metal ions to form UMMNs confined in the zeolite matrix after calcination and reduction. A library of 56 UMMNs confined within both micropores and mesopores of MFI zeolites (MMZs) with 4 mono-, 14 bi- and 38 tri-metallic nanoparticles (sizes of 1.3-4.7 nm) of combinations of Rh, Pd, Pt, Au, Fe, Co, Ni, Cu and Zn were made. An improved catalytic performance was exhibited in the sequence of Rh-MMZ<Rh/Pt-MMZ<Rh/Pt/Ni-MMZ for the mild oxidation of methane to methanol or liquid acid.
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Affiliation(s)
- Xiaoli Jia
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Jingang Jiang
- Shanghai Key Laboratory of Green Chemical Science and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, P. R. China
| | - Shihui Zou
- Key Lab of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou, 310036, P. R. China
| | - Lu Han
- Department School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, P. R. China
| | - Haiyin Zhu
- Center for High-Resolution Electron Microscopy (CħEM), School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, P. R. China
| | - Qing Zhang
- Center for High-Resolution Electron Microscopy (CħEM), School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, P. R. China
| | - Yue Ma
- Shanghai Key Laboratory of Green Chemical Science and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, P. R. China
| | - Peng Luo
- Shanghai Key Laboratory of Green Chemical Science and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, P. R. China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemical Science and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, P. R. China
| | - Alvaro Mayoral
- Center for High-Resolution Electron Microscopy (CħEM), School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, P. R. China.,Instituto de Nanociencia Materiales de Aragon (INMA-CSIC), University of Zaragoza, 12, Calle de Pedro Cerbuna, 50009, Zaragoza, Spain
| | - Xinbao Han
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Jun Cheng
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China
| | - Shunai Che
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China.,Department School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, P. R. China
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87
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Sheng Z, Li H, Du K, Gao L, Ju J, Zhang Y, Tang Y. Observing a Zeolite Nucleus (Subcrystal) with a Uniform Framework Structure and Its Oriented Attachment without Single‐Molecule Addition. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102621] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zhizheng Sheng
- Department of Chemistry Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM) Fudan University Shanghai 200433 P. R. China
| | - He Li
- Department of Chemistry Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM) Fudan University Shanghai 200433 P. R. China
| | - Ke Du
- Department of Chemistry Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM) Fudan University Shanghai 200433 P. R. China
| | - Lou Gao
- Department of Chemistry Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM) Fudan University Shanghai 200433 P. R. China
| | - Jing Ju
- College of Chemistry and Molecular Engineering Beijing National Laboratory for Molecular Sciences (BNLMS) Peking University Beijing 100871 P. R. China
| | - Yahong Zhang
- Department of Chemistry Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM) Fudan University Shanghai 200433 P. R. China
| | - Yi Tang
- Department of Chemistry Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM) Fudan University Shanghai 200433 P. R. China
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88
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From Colloidal Dispersions of Zeolite Monolayers to Effective Solid Catalysts in Transformations of Bulky Organic Molecules: Role of Freeze-Drying and Dialysis. Molecules 2021; 26:molecules26072076. [PMID: 33916558 PMCID: PMC8038491 DOI: 10.3390/molecules26072076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/26/2021] [Accepted: 04/01/2021] [Indexed: 11/17/2022] Open
Abstract
We investigated the properties and catalytic activity of zeolites with MWW topology obtained by unprecedented liquid exfoliation of the MCM-56 zeolite into solutions of monolayers and isolation/reassembly of the dispersed layers by various methods, with optional purification by dialysis or ammonium exchange. The layers were recovered by flocculation with alcohol or ammonium nitrate and freeze-drying. Flocculation alone, even with ammonium nitrate, did not ensure removal of residual sodium cations resulting in catalysts with low activity. Dialysis of the solutions with dispersed monolayers proved to be efficient in removing sodium cations and preserving microporosity. The monolayers were also isolated as solids by freeze-drying. The highest BET area and pore volume obtained with the freeze-dried sample confirmed lyophilization efficiency in preserving layer structure. The applied test reaction, Friedel–Crafts alkylation of mesitylene, showed high benzyl alcohol conversion due to increased concentration of accessible acid centers caused by the presence of secondary mesoporosity. The applied treatments did not change the acid strength of the external acid sites, which are the most important ones for converting bulky organic molecules. Zeolite acidity was not degraded in the course of exfoliation into monolayers, showing the potential of such colloid dispersions for the formation of active catalysts.
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89
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Luan H, Lei C, Ma Y, Wu Q, Zhu L, Xu H, Han S, Zhu Q, Liu X, Meng X, Xiao FS. Alcohol-assisted synthesis of high-silica zeolites in the absence of organic structure-directing agents. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63677-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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90
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The effect of hierarchical single-crystal ZSM-5 zeolites with different Si/Al ratios on its pore structure and catalytic performance. Front Chem Sci Eng 2021. [DOI: 10.1007/s11705-020-1948-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractHierarchical single-crystal ZSM-5 zeolites with different Si/Al ratios (Hier-ZSM-5-x, where x = 50, 100, 150 and 200) were synthesized using an ordered mesoporous carbon-silica composite as hard template. Hier-ZSM-5-x exhibits improved mass transport properties, excellent mechanical and hydrothermal stability, and higher catalytic activity than commercial bulk zeolites in the benzyl alcohol self-etherification reaction. Results show that a decrease in the Si/Al ratio in hierarchical single-crystal ZSM-5 zeolites leads to a significant increase in the acidity and the density of micropores, which increases the final catalytic conversion. The effect of porous hierarchy on the diffusion of active sites and the final catalytic activity was also studied by comparing the catalytic conversion after selectively designed poisoned acid sites. These poisoned Hier-ZSM-5-x shows much higher catalytic conversion than the poisoned commercial ZSM-5 zeolite, which indicates that the numerous intracrystalline mesopores significantly reduce the diffusion path of the reactant, leading to the faster diffusion inside the zeolite to contact with the acid sites in the micropores predominating in ZSM-5 zeolites. This study can be extended to develop a series of hierarchical single-crystal zeolites with expected catalytic performance.
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91
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Abstract
Detailed analysis of textural properties, e.g., pore size and connectivity, of nanoporous materials is essential to identify correlations of these properties with the performance of gas storage, separation, and catalysis processes. The advances in developing nanoporous materials with uniform, tailor-made pore structures, including the introduction of hierarchical pore systems, offer huge potential for these applications. Within this context, major progress has been made in understanding the adsorption and phase behavior of confined fluids and consequently in physisorption characterization. This enables reliable pore size, volume, and network connectivity analysis using advanced, high-resolution experimental protocols coupled with advanced methods based on statistical mechanics, such as methods based on density functional theory and molecular simulation. If macro-pores are present, a combination of adsorption and mercury porosimetry can be useful. Hence, some important recent advances in understanding the mercury intrusion/extrusion mechanism are discussed. Additionally, some promising complementary techniques for characterization of porous materials immersed in a liquid phase are introduced.
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Affiliation(s)
- M Thommes
- Institute of Separation Science and Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91058, Germany;
| | - C Schlumberger
- Institute of Separation Science and Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91058, Germany;
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92
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Wang N, Sun Q, Zhang T, Mayoral A, Li L, Zhou X, Xu J, Zhang P, Yu J. Impregnating Subnanometer Metallic Nanocatalysts into Self-Pillared Zeolite Nanosheets. J Am Chem Soc 2021; 143:6905-6914. [PMID: 33662199 DOI: 10.1021/jacs.1c00578] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Impregnation is the most commonly used approach to prepare supported metal catalysts in industry. However, this method suffers from the formation of large metal particles with uneven dispersion, poor thermal stability, and thus unsatisfied catalytic performance. Here, we demonstrate that the self-pillared MFI zeolite (silicalite-1 and ZSM-5) nanosheets with larger surface area and abundant Si-OH groups are ideal supports to immobilize ultrasmall monometallic (e.g., Rh and Ru) and various bimetallic clusters via simple incipient wetness impregnation method. The loaded subnanometric metal clusters are uniformly dispersed within sinusoidal five-membered rings of MFI and remain stable at high temperatures. The Rh/SP-S-1 is highly efficient in ammonia borane (AB) hydrolysis, showing a TOF value of 430 molH2 molRh-1 min-1 at 298 K, which is more than 6-fold improvement over that of nanosized zeolite-supported Rh catalyst and even comparable with that of zeolite-supported Rh single-atom catalyst. Because of the synergistic effect between bimetallic Rh-Ru clusters and zeolite acidity, the H2 generation rate from AB hydrolysis over Rh0.8Ru0.2/SP-ZSM-5-100 reaches up to 1006 molH2 molmetal-1 min-1 at 298 K, and also shows record activities in cascade hydrogenation of various nitroarenes by coupling with the hydrolysis of AB. This work demonstrates that zeolite nanosheets are excellent supports to anchor diverse ultrasmall metallic species via the simple impregnation method, and the obtained nanocatalysts can be applied in various industrially important catalytic reactions.
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Affiliation(s)
- Ning Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China
| | - Qiming Sun
- Innovation Center for Chemical Sciences, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, People's Republic of China
| | - Tianjun Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China
| | - Alvaro Mayoral
- Center for High-resolution Electron Microscopy (CℏEM), School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China.,Institute of Nanoscience and Materials of Aragon (INMA), Spanish National Research Council (CSIC), Advanced Microscopy Laboratory (LMA), University of Zaragoza, 12, Calle de Pedro Cerbuna, 50009 Zaragoza, Spain
| | - Lin Li
- Electron Microscopy Center, Jilin University, Changchun, 130012, People's Republic of China
| | - Xue Zhou
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, People's Republic of China
| | - Jun Xu
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, People's Republic of China
| | - Peng Zhang
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Jihong Yu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.,International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China
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93
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Dakhchoune M, Villalobos LF, Semino R, Liu L, Rezaei M, Schouwink P, Avalos CE, Baade P, Wood V, Han Y, Ceriotti M, Agrawal KV. Gas-sieving zeolitic membranes fabricated by condensation of precursor nanosheets. NATURE MATERIALS 2021; 20:362-369. [PMID: 33020610 DOI: 10.1038/s41563-020-00822-2] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 09/03/2020] [Indexed: 06/11/2023]
Abstract
The synthesis of molecular-sieving zeolitic membranes by the assembly of building blocks, avoiding the hydrothermal treatment, is highly desired to improve reproducibility and scalability. Here we report exfoliation of the sodalite precursor RUB-15 into crystalline 0.8-nm-thick nanosheets, that host hydrogen-sieving six-membered rings (6-MRs) of SiO4 tetrahedra. Thin films, fabricated by the filtration of a suspension of exfoliated nanosheets, possess two transport pathways: 6-MR apertures and intersheet gaps. The latter were found to dominate the gas transport and yielded a molecular cutoff of 3.6 Å with a H2/N2 selectivity above 20. The gaps were successfully removed by the condensation of the terminal silanol groups of RUB-15 to yield H2/CO2 selectivities up to 100. The high selectivity was exclusively from the transport across 6-MR, which was confirmed by a good agreement between the experimentally determined apparent activation energy of H2 and that computed by ab initio calculations. The scalable fabrication and the attractive sieving performance at 250-300 °C make these membranes promising for precombustion carbon capture.
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Affiliation(s)
- Mostapha Dakhchoune
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, Switzerland
| | - Luis Francisco Villalobos
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, Switzerland
| | - Rocio Semino
- Laboratory of Computational Science and Modelling (COSMO), EPFL, Lausanne, Switzerland
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
| | - Lingmei Liu
- Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Mojtaba Rezaei
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, Switzerland
| | - Pascal Schouwink
- Institut des Sciences et Ingénierie Chimiques (ISIC), EPFL, Lausanne, Switzerland
| | | | - Paul Baade
- Department of Information Technology and Electrical Engineering, ETH, Zürich, Switzerland
| | - Vanessa Wood
- Department of Information Technology and Electrical Engineering, ETH, Zürich, Switzerland
| | - Yu Han
- Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Michele Ceriotti
- Laboratory of Computational Science and Modelling (COSMO), EPFL, Lausanne, Switzerland
| | - Kumar Varoon Agrawal
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, Switzerland.
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94
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Iadrat P, Horii N, Atithep T, Wattanakit C. Effect of Pore Connectivity of Pore-Opened Hierarchical MOR Zeolites on Catalytic Behaviors and Coke Formation in Ethanol Dehydration. ACS APPLIED MATERIALS & INTERFACES 2021; 13:8294-8305. [PMID: 33560823 DOI: 10.1021/acsami.0c19780] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The hierarchical zeolite is one of the most promising materials for catalytic applications. However, the effect of its pore connectivity on catalytic behaviors and coke formation has not clearly been revealed. In this contribution, we demonstrate the visualization of the mesopore architecture in three-dimensional perspectives together with the pore connectivity network of pore-opened hierarchical mordenite (MOR), fabricated by the seed-assisted template-free synthesis followed by the fluoride treatment via the electron tomography (ET) technique. Interestingly, the pore-opened zeolites clearly display higher catalytic performance (approximately 80% of ethylene yield) in ethanol dehydration with respect to the parent one due to their additional pore-opened structures connected to the external surfaces of zeolites. In addition, the effect of pore connectivity network on the coke location and type obtained from ethanol conversion has been observed. It was found that the porous structure of the etched sample is directly connected to the external surface, and then, the large area of crystals can contribute to the reaction. Conversely, only a small amount of closed mesopores is observed inside the crystals in the case of the untreated sample, and therefore, the molecules cannot easily penetrate inside crystals for the catalytic reaction. These results open up promising perspectives for the development of hierarchical catalysts including fabrication by the template-free synthesis approach, pore-architecture characterization, and catalytic applications.
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Affiliation(s)
- Ploychanok Iadrat
- School of Molecular Science and Engineering, School of Energy Science and Engineering, Nanocatalysts and Nanomaterials for Sustainable Energy and Environment Research Network of NANOTEC, and Frontier Research Center (FRC), Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
| | - Noritaka Horii
- Engineering Division, System in Frontier Inc., Tachikawa-shi, Tokyo 190-0012, Japan
| | - Thassanant Atithep
- School of Molecular Science and Engineering, School of Energy Science and Engineering, Nanocatalysts and Nanomaterials for Sustainable Energy and Environment Research Network of NANOTEC, and Frontier Research Center (FRC), Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
| | - Chularat Wattanakit
- School of Molecular Science and Engineering, School of Energy Science and Engineering, Nanocatalysts and Nanomaterials for Sustainable Energy and Environment Research Network of NANOTEC, and Frontier Research Center (FRC), Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
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95
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Shamzhy M, Gil B, Opanasenko M, Roth WJ, Čejka J. MWW and MFI Frameworks as Model Layered Zeolites: Structures, Transformations, Properties, and Activity. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05332] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mariya Shamzhy
- Department of Physical and Macromolecular Chemistry, Faculty of Sciences, Charles University, Hlavova 8, 128 43 Prague 2, Czech Republic
| | - Barbara Gil
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Maksym Opanasenko
- Department of Physical and Macromolecular Chemistry, Faculty of Sciences, Charles University, Hlavova 8, 128 43 Prague 2, Czech Republic
| | - Wieslaw J. Roth
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Jiří Čejka
- Department of Physical and Macromolecular Chemistry, Faculty of Sciences, Charles University, Hlavova 8, 128 43 Prague 2, Czech Republic
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96
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Jain SK, Tabassum T, Li L, Ren L, Fan W, Tsapatsis M, Caratzoulas S, Han S, Scott SL. P-Site Structural Diversity and Evolution in a Zeosil Catalyst. J Am Chem Soc 2021; 143:1968-1983. [PMID: 33491456 DOI: 10.1021/jacs.0c11768] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Phosphorus-modified siliceous zeolites, or P-zeosils, catalyze the selective dehydration of biomass derivatives to platform chemicals such as p-xylene and 1,3-butadiene. Water generated during these reactions is a critical factor in catalytic activity, but the effects of hydrolysis on the structure, acidity, and distribution of the active sites are largely unknown. In this study, the P-sites in an all-silica self-pillared pentasil (P-SPP) with a low P-loading (Si/P = 27) were identified by solid-state 31P NMR using frequency-selective detection. This technique resolves overlapping signals for P-sites that are covalently bound to the solid phase, as well as oligomers confined in the zeolite but not attached to the zeolite. Dynamic Nuclear Polarization provides the sensitivity necessary to conduct 29Si-filtered 31P detection and 31P-31P correlation experiments. The aforementioned techniques allow us to distinguish sites with P-O-Si linkages from those with P-O-P linkages. The spectra reveal a previously unappreciated diversity of P-sites, including evidence for surface-bound oligomers. In the dry P-zeosil, essentially all P-sites are anchored to the solid phase, including mononuclear sites and dinuclear sites containing the [Si-O-P-O-P-O-Si] motif. The fully-condensed sites evolve rapidly when exposed to humidity, even at room temperature. Partially hydrolyzed species have a wide range of acidities, inferred from their calculated LUMO energies. Initial cleavage of some P-O-Si linkages results in an evolving mixture of surface-bound mono- and oligonuclear P-sites with increased acidity. Subsequent P-O-P cleavage leads to a decrease in acidity as the P-sites are eventually converted to H3PO4. The ability to identify acidic sites in P-zeosils and to describe their structure and stability will play an important role in controlling the activity of microporous catalysts by regulating their water content.
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Affiliation(s)
- Sheetal K Jain
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Tarnuma Tabassum
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Li Li
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Limin Ren
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave SE, Minneapolis, Minnesota 55455, United States
| | - Wei Fan
- Department of Chemical Engineering, University of Massachusetts Amherst, 686 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Michael Tsapatsis
- Department of Chemical and Biomolecular Engineering and Institute for NanoBiotechnology, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States.,Applied Physics Laboratory, Johns Hopkins University, 11100 Johns Hopkins Road, Laurel, Maryland 20723, United States
| | - Stavros Caratzoulas
- Delaware Energy Institute, 221 Academy Street, Newark, Delaware 19716, United States
| | - Songi Han
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States.,Department of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
| | - Susannah L Scott
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States.,Department of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
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97
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Al-ZSM-5 Nanocrystal Catalysts Grown from Silicalite-1 Seeds for Methane Conversion. ENERGIES 2021. [DOI: 10.3390/en14020485] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This study evaluated Al-ZSM-5 nanocrystals grown from silicalite-1 seed crystals as catalysts for the methane dehydroaromatization (MDA) reaction. Silicalite-1 seed crystals sized between 30 and 40 nm were used to grow Al-ZSM-5 under various synthesis conditions. The size of Al-ZSM-5 was significantly affected by the Si/Al ratio (SAR), synthesis time, and silica nutrients/seed crystal ratio (NSR). Larger crystals were obtained with an increased SAR in the synthesis sols. Gradual growth of Al-ZSM-5 occurred with synthesis time, although the growth in crystal size ceased at 5 h of synthesis at 120 °C, indicating the rapid growth of Al-ZSM-5 aided by the silicalite-1 seeds. Precise tuning of Al-ZSM-5 size was possible by changing the nutrient/silicalite-1 seed ratio; a higher NSR led to larger crystals. Two representative Al-ZSM-5 crystals with SARs of 35 and 140 were prepared for catalyst testing, and the crystal sizes were tailored to <100 nm by controlling NSR. The MDA reaction was conducted in the presence of the prepared Al-ZSM-5. The catalyst size exhibited distinct differences in catalyst stability, while the SAR of catalysts did not produce noticeable changes in the catalyst stability of the Al-ZSM-5 crystals and commercial zeolites in this reaction system.
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98
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Hong S, Jeong Y, Baik H, Choi N, Yip ACK, Choi J. An Extrinsic-Pore-Containing Molecular Sieve Film: A Robust, High-Throughput Membrane Filter. Angew Chem Int Ed Engl 2021; 60:1323-1331. [PMID: 33026162 DOI: 10.1002/anie.202010957] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/29/2020] [Indexed: 11/11/2022]
Abstract
MFI type zeolites with 10-membered-ring pores (ca. 0.55 nm) have the ability to separate p-xylene (ca. 0.58 nm) from its bulkier isomers. Here, we introduced non-zeolitic micropores (ca. 0.6-1.5 nm) and mesopores (ca. 2-7 nm) to a conventional microporous MFI type zeolite membrane, yielding an unprecedented hierarchical membrane structure. The uniform, embedded non-zeolitic pores decreased defect formation considerably and facilitated molecular transport, resulting in high p-xylene perm-selectivity and molar flux. Specifically, compared to a conventional, crack network-containing MFI membranes of similar thickness (ca. 1 μm), the mesoporous MFI membranes showed almost double p-xylene permeance (ca. 1.6±0.4×10-7 mol m-2 s-1 Pa-1 ) and a high p-/o-xylene separation factor (ca. 53.8±7.3 vs. 3.5±0.5 in the conventional MFI membrane) at 225 °C. The embedded non-zeolitic pores allowed for decreasing the separation performance degradation, which was apparently related to coke formation.
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Affiliation(s)
- Sungwon Hong
- Department of Chemical & Biological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Yanghwan Jeong
- Department of Chemical & Biological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Hionsuck Baik
- Korea Basic Science Institute (KBSI) Seoul Center, Seoul, 02841, Republic of Korea
| | - Nakwon Choi
- Center for BioMicrosystems, Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea.,KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea
| | - Alex C K Yip
- Chemical and Process Engineering, University of Canterbury, Christchurch, 8140, New Zealand
| | - Jungkyu Choi
- Department of Chemical & Biological Engineering, Korea University, Seoul, 02841, Republic of Korea
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99
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Miao L, Hong Z, Zhao G, Huang F, Zhu Z. Mo-Modified ZSM-5 zeolite with intergrowth crystals for high-efficiency catalytic xylene isomerization. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00724f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Mo/ZSM-5 catalysts of xylene isomerization were prepared on the intergrowth ZSM-5 support by an impregnation–calcination–reduction procedure.
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Affiliation(s)
- Lei Miao
- School of Chemical Science and Engineering
- Tongji University
- Shanghai 200092
- P. R. China
| | - Zhe Hong
- School of Chemical Science and Engineering
- Tongji University
- Shanghai 200092
- P. R. China
| | - Guoqing Zhao
- School of Chemical Science and Engineering
- Tongji University
- Shanghai 200092
- P. R. China
| | - Fangtao Huang
- School of Chemical Science and Engineering
- Tongji University
- Shanghai 200092
- P. R. China
| | - Zhirong Zhu
- School of Chemical Science and Engineering
- Tongji University
- Shanghai 200092
- P. R. China
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100
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You Q, Wang X, Wu Y, Bi C, Yang X, Sun M, Zhang J, Hao Q, Chen H, Ma X. Hierarchical Ti-beta with a three-dimensional ordered mesoporosity for catalytic epoxidation of bulky cyclic olefins. NEW J CHEM 2021. [DOI: 10.1039/d1nj00736j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Hierarchical beta zeolites with a three-dimensionally ordered mesoporous-imprinted (3DOm-i) structure and post-synthetic Ti grafting for catalytic epoxidation of cyclic olefins.
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Affiliation(s)
- Qing You
- School of Chemical Engineering
- Northwest University
- Xi'an
- China
| | - Xu Wang
- School of Chemical Engineering
- Northwest University
- Xi'an
- China
| | - Yushuai Wu
- School of Chemical Engineering
- Northwest University
- Xi'an
- China
| | - Chenyao Bi
- School of Chemical Engineering
- Northwest University
- Xi'an
- China
| | - Xin Yang
- School of Chemical Engineering
- Northwest University
- Xi'an
- China
| | - Ming Sun
- School of Chemical Engineering
- Northwest University
- Xi'an
- China
- International Science & Technology Cooperation Base for Clean Utilization of Hydrocarbon Resources
| | - Jianbo Zhang
- School of Chemical Engineering
- Northwest University
- Xi'an
- China
- International Science & Technology Cooperation Base for Clean Utilization of Hydrocarbon Resources
| | - Qingqing Hao
- School of Chemical Engineering
- Northwest University
- Xi'an
- China
- International Science & Technology Cooperation Base for Clean Utilization of Hydrocarbon Resources
| | - Huiyong Chen
- School of Chemical Engineering
- Northwest University
- Xi'an
- China
- International Science & Technology Cooperation Base for Clean Utilization of Hydrocarbon Resources
| | - Xiaoxun Ma
- School of Chemical Engineering
- Northwest University
- Xi'an
- China
- International Science & Technology Cooperation Base for Clean Utilization of Hydrocarbon Resources
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