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Zhan Z, Liu Y, Wang W, Du G, Cai S, Wang P. Atomic-level imaging of beam-sensitive COFs and MOFs by low-dose electron microscopy. Nanoscale Horiz 2024. [PMID: 38512352 DOI: 10.1039/d3nh00494e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Electron microscopy, an important technique that allows for the precise determination of structural information with high spatiotemporal resolution, has become indispensable in unravelling the complex relationships between material structure and properties ranging from mesoscale morphology to atomic arrangement. However, beam-sensitive materials, particularly those comprising organic components such as metal-organic frameworks (MOFs) and covalent organic frameworks (COFs), would suffer catastrophic damage from the high energy electrons, hindering the determination of atomic structures. A low-dose approach has arisen as a possible solution to this problem based on the integration of advancements in several aspects: electron optical system, detector, image processing, and specimen preservation. This article summarizes the transmission electron microscopy characterization of MOFs and COFs, including local structures, host-guest interactions, and interfaces at the atomic level. Revolutions in advanced direct electron detectors, algorithms in image acquisition and processing, and emerging methodology for high quality low-dose imaging are also reviewed. Finally, perspectives on the future development of electron microscopy methodology with the support of computer science are presented.
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Affiliation(s)
- Zhen Zhan
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong SAR, China.
| | - Yuxin Liu
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong SAR, China.
| | - Weizhen Wang
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong SAR, China.
| | - Guangyu Du
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong SAR, China.
| | - Songhua Cai
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong SAR, China.
| | - Peng Wang
- Department of Physics, University of Warwick, CV4 7AL, Coventry, UK.
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Ai M, Pan L, Shi C, Huang ZF, Zhang X, Mi W, Zou JJ. Spin selection in atomic-level chiral metal oxide for photocatalysis. Nat Commun 2023; 14:4562. [PMID: 37507418 PMCID: PMC10382512 DOI: 10.1038/s41467-023-40367-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 07/25/2023] [Indexed: 07/30/2023] Open
Abstract
The spin degree of freedom is an important and intrinsic parameter in boosting carrier dynamics and surface reaction kinetics of photocatalysis. Here we show that chiral structure in ZnO can induce spin selectivity effect to promote photocatalytic performance. The ZnO crystals synthesized using chiral methionine molecules as symmetry-breaking agents show hierarchical chirality. Magnetic circular dichroism spectroscopic and magnetic conductive-probe atomic force microscopic measurements demonstrate that chiral structure acts as spin filters and induces spin polarization in photoinduced carriers. The polarized carriers not only possess the prolonged carrier lifetime, but also increase the triplet species instead of singlet byproducts during reaction. Accordingly, the left- and right-hand chiral ZnO exhibit 2.0- and 1.9-times higher activity in photocatalytic O2 production and 2.5- and 2.0-times higher activities in contaminant photodegradation, respectively, compared with achiral ZnO. This work provides a feasible strategy to manipulate the spin properties in metal oxides for electron spin-related redox catalysis.
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Affiliation(s)
- Minhua Ai
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Lun Pan
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China.
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China.
| | - Chengxiang Shi
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
| | - Zhen-Feng Huang
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
| | - Xiangwen Zhang
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
| | - Wenbo Mi
- Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparation Technology, School of Science, Tianjin University, Tianjin, 300354, China
| | - Ji-Jun Zou
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China.
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China.
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Moeck P. Information-Theory Based Symmetry Classifications of Sets of S/TEM Zone-Axis Images in Support of Nanocrystallography and Discrete Electron Tomography. Microsc Microanal 2023; 29:598-599. [PMID: 37613401 DOI: 10.1093/micmic/ozad067.289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Affiliation(s)
- Peter Moeck
- Nano-Crystallography Group, Department of Physics, Portland State University, Portland, OR, USA
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Gong X, Gnanasekaran K, Chen Z, Robison L, Wasson MC, Bentz KC, Cohen SM, Farha OK, Gianneschi NC. Insights into the Structure and Dynamics of Metal–Organic Frameworks via Transmission Electron Microscopy. J Am Chem Soc 2020; 142:17224-17235. [DOI: 10.1021/jacs.0c08773] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xinyi Gong
- Department of Chemistry and International Institute of Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Karthikeyan Gnanasekaran
- Department of Chemistry and International Institute of Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Zhijie Chen
- Department of Chemistry and International Institute of Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Lee Robison
- Department of Chemistry and International Institute of Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Megan C. Wasson
- Department of Chemistry and International Institute of Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Kyle C. Bentz
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
| | - Seth M. Cohen
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
| | - Omar K. Farha
- Department of Chemistry and International Institute of Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Nathan C. Gianneschi
- Department of Chemistry and International Institute of Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
- Department of Biomedical Engineering, Materials Science & Engineering, Pharmacology, Simpson-Querrey Institute, Chemistry of Life Processes Institute, Lurie Cancer Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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Lei C, Dong Z, Martínez C, Martínez-Triguero J, Chen W, Wu Q, Meng X, Parvulescu AN, De Baerdemaeker T, Müller U, Zheng A, Ma Y, Zhang W, Yokoi T, Marler B, De Vos DE, Kolb U, Corma A, Xiao FS. A Cationic Oligomer as an Organic Template for Direct Synthesis of Aluminosilicate ITH Zeolite. Angew Chem Int Ed Engl 2020; 59:15649-15655. [PMID: 32453899 DOI: 10.1002/anie.202003282] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 05/18/2020] [Indexed: 11/09/2022]
Abstract
There are a large number of zeolites, such as ITH, that cannot be prepared in the aluminosilicate form. Now, the successful synthesis of aluminosilicate ITH zeolite using a simple cationic oligomer as an organic template is presented. Key to the success is that the cationic oligomer has a strong complexation ability with aluminum species combined with a structural directing ability for the ITH structure similar to that of the conventional organic template. The aluminosilicate ITH zeolite has very high crystallinity, nanosheet-like crystal morphology, large surface area, fully four-coordinated Al species, and abundant acidic sites. Methanol-to-propylene (MTP) tests reveal that the Al-ITH zeolite shows much higher selectivity for propylene and longer lifetime than commercial ZSM-5. FCC tests show that Al-ITH zeolite is a good candidate as a shape-selective FCC additive for enhancing propylene and butylene selectivity.
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Affiliation(s)
- Chi Lei
- Key Laboratory of Applied Chemistry of Zhejiang Province, Zhejiang University, Hangzhou, 310007, P. R. China
| | - Zhuoya Dong
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Cristina Martínez
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022, València, Spain
| | - Joaquín Martínez-Triguero
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022, València, Spain
| | - Wei Chen
- Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, P. R. China
| | - Qinming Wu
- Key Laboratory of Applied Chemistry of Zhejiang Province, Zhejiang University, Hangzhou, 310007, P. R. China
| | - Xiangju Meng
- Key Laboratory of Applied Chemistry of Zhejiang Province, Zhejiang University, Hangzhou, 310007, P. R. China
| | | | | | - Ulrich Müller
- BASF SE, Process Research and Chemical Engineering, 67056, Ludwigshafen, Germany
| | - Anmin Zheng
- Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, P. R. China
| | - Yanhang Ma
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Weiping Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116012, P. R. China
| | - Toshiyuki Yokoi
- Chemical Resources Laboratory, Tokyo Institute of Technology, Yokohama, 226-8503, Japan
| | - Bernd Marler
- Department of Geology, Mineralogy and Geophysics, Ruhr University Bochum, 44780, Bochum, Germany
| | - Dirk E De Vos
- Centre for Membrane Separations, Adsorption, Catalysis, and Spectroscopy for Sustainable Solutions, KU Leuven, Celestijnenlaan 200f, 3001, Leuven, Belgium
| | - Ute Kolb
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg University Mainz, 555128, Mainz, Germany
| | - Avelino Corma
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022, València, Spain
| | - Feng-Shou Xiao
- Key Laboratory of Applied Chemistry of Zhejiang Province, Zhejiang University, Hangzhou, 310007, P. R. China
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Lei C, Dong Z, Martínez C, Martínez‐Triguero J, Chen W, Wu Q, Meng X, Parvulescu A, De Baerdemaeker T, Müller U, Zheng A, Ma Y, Zhang W, Yokoi T, Marler B, De Vos DE, Kolb U, Corma A, Xiao F. A Cationic Oligomer as an Organic Template for Direct Synthesis of Aluminosilicate ITH Zeolite. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chi Lei
- Key Laboratory of Applied Chemistry of Zhejiang Province Zhejiang University Hangzhou 310007 P. R. China
| | - Zhuoya Dong
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 P. R. China
| | - Cristina Martínez
- Instituto de Tecnología Química Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas Avenida de los Naranjos s/n 46022 València Spain
| | - Joaquín Martínez‐Triguero
- Instituto de Tecnología Química Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas Avenida de los Naranjos s/n 46022 València Spain
| | - Wei Chen
- Wuhan Institute of Physics and Mathematics Chinese Academy of Sciences Wuhan 430071 P. R. China
| | - Qinming Wu
- Key Laboratory of Applied Chemistry of Zhejiang Province Zhejiang University Hangzhou 310007 P. R. China
| | - Xiangju Meng
- Key Laboratory of Applied Chemistry of Zhejiang Province Zhejiang University Hangzhou 310007 P. R. China
| | | | | | - Ulrich Müller
- BASF SE Process Research and Chemical Engineering 67056 Ludwigshafen Germany
| | - Anmin Zheng
- Wuhan Institute of Physics and Mathematics Chinese Academy of Sciences Wuhan 430071 P. R. China
| | - Yanhang Ma
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 P. R. China
| | - Weiping Zhang
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116012 P. R. China
| | - Toshiyuki Yokoi
- Chemical Resources Laboratory Tokyo Institute of Technology Yokohama 226-8503 Japan
| | - Bernd Marler
- Department of Geology, Mineralogy and Geophysics Ruhr University Bochum 44780 Bochum Germany
| | - Dirk E. De Vos
- Centre for Membrane Separations, Adsorption, Catalysis, and Spectroscopy for Sustainable Solutions KU Leuven Celestijnenlaan 200f 3001 Leuven Belgium
| | - Ute Kolb
- Institute of Inorganic Chemistry and Analytical Chemistry Johannes Gutenberg University Mainz 555128 Mainz Germany
| | - Avelino Corma
- Instituto de Tecnología Química Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas Avenida de los Naranjos s/n 46022 València Spain
| | - Feng‐Shou Xiao
- Key Laboratory of Applied Chemistry of Zhejiang Province Zhejiang University Hangzhou 310007 P. R. China
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Affiliation(s)
- Tu Sun
- School of Physical Science and Technology, ShanghaiTech University Shanghai 201210 China
| | - Wei Lei
- School of Physical Science and Technology, ShanghaiTech University Shanghai 201210 China
| | - Yanhang Ma
- School of Physical Science and Technology, ShanghaiTech University Shanghai 201210 China
| | - Yue‐Biao Zhang
- School of Physical Science and Technology, ShanghaiTech University Shanghai 201210 China
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