1
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Huang Y, Liang Q, Yin H, Zhang X, Gao R, Pan J, Liang K, Jiang L, Kong B. pH Modulation of Super-Assembled Heteromembranes for Sustainable Chiral Sensing. ACS NANO 2024; 18:12547-12559. [PMID: 38695563 DOI: 10.1021/acsnano.4c02720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2024]
Abstract
Enantioselective sensing and separation represent formidable challenges across a diverse range of scientific domains. The advent of hybrid chiral membranes offers a promising avenue to address these challenges, capitalizing on their unique characteristics, including their heterogeneous structure, porosity, and abundance of chiral surfaces. However, the prevailing fabrication methods typically involve the initial preparation of achiral porous membranes followed by subsequent modification with chiral molecules, limiting their synthesis flexibility and controllability. Moreover, existing chiral membranes struggle to achieve coupled-accelerated enantioseparation (CAE). Here, we report a replacement strategy to controllably produce mesoscale and chiral silica-carbon (MCSC) hybrid membranes that comprise chiral pores by interfacial superassembly on a macroporous alumina (AAO) membrane, in which both ion- and enantiomers can be effectively and selectively transported across the membrane. As a result, the heterostructured hybrid membrane (MCSC/AAO) exhibits enhanced selectivity for cations and enantiomers of amino acids, achieving CAE for amino acids with an isoelectric point (pI) exceeding 7. Interestingly, the MCSC/AAO system demonstrates enhanced pH-sensitive enantioseparation compared to chiral mesoporous silica/AAO (CMS/AAO) with significant improvements of 78.14, 65.37, and 14.29% in the separation efficiency, separation factor, and permeate flux, respectively. This work promises to advance the synthesis of two or more component-integrated chiral nanochannels with multifunctional properties and allows a better understanding of the origins of the homochiral hybrid membranes.
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Affiliation(s)
- Yanan Huang
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, iChEM, Fudan University, Shanghai 200433, P. R. China
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
| | - Qirui Liang
- Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao 266400, P. R. China
| | - Haibo Yin
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, P. R. China
| | - Xin Zhang
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, iChEM, Fudan University, Shanghai 200433, P. R. China
| | - Ruihua Gao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, P. R. China
| | - Jianming Pan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
| | - Kang Liang
- School of Chemical Engineering, Graduate School of Biomedical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Lei Jiang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Science, Beijing 100190, P. R. China
| | - Biao Kong
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, iChEM, Fudan University, Shanghai 200433, P. R. China
- Yiwu Research Institute of Fudan University, Yiwu, Zhejiang 322000, P. R. China
- Shandong Fudan Research Institute, Jinan 250014, P. R. China
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2
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Satoh Y, Fuchise K, Nozawa T, Sato K, Igarashi M. A catalyst- and additive-free synthesis of alkoxyhydrosiloxanes from silanols and alkoxyhydrosilanes. Chem Commun (Camb) 2020; 56:8218-8221. [PMID: 32555824 DOI: 10.1039/d0cc03379k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A convenient method for the selective synthesis of alkoxyhydrosiloxanes that bear SiH and SiOR2 groups on the same silicon atom, R13Si-O-SiR32-n(OR2)nH (n = 0, 1, or 2), via a simple catalyst- and additive-free dealcoholization reaction between silanols and alkoxyhydrosilanes has been developed. These alkoxyhydrosiloxanes can be easily converted into Si(OR2)3-containing siloxanes by zinc catalyzed alkoxylation and alkoxy-containing silphenylene polymers by platinum catalyzed hydrosilylation.
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Affiliation(s)
- Yasushi Satoh
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
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3
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Espinosa‐Jalapa NA, Bauer JO. Controlled Synthesis and Molecular Structures of Methoxy‐, Amino‐, and Chloro‐Functionalized Disiloxane Building Blocks. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.202000049] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Noel Angel Espinosa‐Jalapa
- Institut für Anorganische Chemie Fakultät für Chemie und Pharmazie Universität Regensburg Universitätsstraße 31 93053 Regensburg Germany
| | - Jonathan O. Bauer
- Institut für Anorganische Chemie Fakultät für Chemie und Pharmazie Universität Regensburg Universitätsstraße 31 93053 Regensburg Germany
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4
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Shankar R, Mahavar N. A catalytic study of water dispersed gold nanoparticles for the hydrolytic oxidation of diorganosilanes – en route formation of a Pickering catalyst and synthesis of tetraorganodisiloxane-1,3-diols. Dalton Trans 2020; 49:16633-16637. [DOI: 10.1039/d0dt03252b] [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
This study unfolds the formation of a AuNP-stabilized Pickering catalyst (PIC) en route to the hydrolytic oxidation of diorganosilanes. The method offers a viable route for the synthesis of disiloxane-1,3-diols.
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Affiliation(s)
- Ravi Shankar
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi
- India
| | - Nidhi Mahavar
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi
- India
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5
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Pattanaik S, Gunanathan C. Cobalt-Catalyzed Selective Synthesis of Disiloxanes and Hydrodisiloxanes. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00305] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Sandip Pattanaik
- School of Chemical Sciences, National Institute of Science Education and Research, HBNI, Bhubaneswar 752050, India
| | - Chidambaram Gunanathan
- School of Chemical Sciences, National Institute of Science Education and Research, HBNI, Bhubaneswar 752050, India
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6
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Moriones P, Echeverria JC, Parra JB, Garrido JJ. Phenyl siloxane hybrid xerogels: structure and porous texture. ADSORPTION 2019. [DOI: 10.1007/s10450-019-00075-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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7
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Sugiyama T, Shiba H, Yoshikawa M, Wada H, Shimojima A, Kuroda K. Synthesis of Polycyclic and Cage Siloxanes by Hydrolysis and Intramolecular Condensation of Alkoxysilylated Cyclosiloxanes. Chemistry 2019; 25:2764-2772. [PMID: 30600848 DOI: 10.1002/chem.201805942] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 12/26/2018] [Indexed: 12/26/2022]
Abstract
The controlled synthesis of oligosiloxanes with well-defined structures is important for the bottom-up design of siloxane-based nanomaterials. This work reports the synthesis of various polycyclic and cage siloxanes by the hydrolysis and intramolecular condensation of monocyclic tetra- and hexasiloxanes functionalized with various alkoxysilyl groups. An investigation of monoalkoxysilylated cyclosiloxanes revealed that intramolecular condensation occurred preferentially between adjacent alkoxysilyl groups to form new tetrasiloxane rings. The study of dialkoxy- and trialkoxysilylated cyclotetrasiloxanes revealed multistep intramolecular condensation reactions to form cubic octasiloxanes in relatively high yields. Unlike conventional methods starting from organosilane monomers, intramolecular condensation enables the introduction of different organic substituents in controlled arrangements. So-called Janus cubes have been successfully obtained, that is, Ph4 R4 Si8 O12 , in which R=Me, OSiMe3 , and OSiMe2 Vi (Vi=vinyl). These findings will enable the creation of siloxane-based materials with diverse functions.
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Affiliation(s)
- Tomoaki Sugiyama
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, Okubo-3, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Hiroya Shiba
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, Okubo-3, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Masashi Yoshikawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, Okubo-3, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Hiroaki Wada
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, Okubo-3, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Atsushi Shimojima
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, Okubo-3, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Kazuyuki Kuroda
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, Okubo-3, Shinjuku-ku, Tokyo, 169-8555, Japan.,Kagami Memorial Research Institute, for Materials Science and Technology, Nishiwaseda-2, Shinjuku-ku, Tokyo, 169-0051, Japan
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8
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Yoshikawa M, Ikawa H, Wada H, Shimojima A, Kuroda K. Self-assembly of Cyclohexasiloxanes Possessing Alkoxysilyl Groups and Long Alkyl Chains. CHEM LETT 2018. [DOI: 10.1246/cl.180493] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Masashi Yoshikawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Hanako Ikawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Hiroaki Wada
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Atsushi Shimojima
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Kazuyuki Kuroda
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
- Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo 169-0051, Japan
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9
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Graffion J, Dems D, Demirelli M, Coradin T, Delsuc N, Aimé C. An All‐in‐One Molecule for the One‐Step Synthesis of Functional Hybrid Silica Particles with Tunable Sizes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201701181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Julien Graffion
- Sorbonne Universités UPMC Univ Paris 06, Collège de France UMR CNRS 7574, Laboratoire de Chimie de la Matière Condensée de Paris Paris cedex 05 France
- PSL Research University 60 rue Mazarine 75006 Paris France
| | - Dounia Dems
- Sorbonne Universités UPMC Univ Paris 06, Collège de France UMR CNRS 7574, Laboratoire de Chimie de la Matière Condensée de Paris Paris cedex 05 France
- PSL Research University 60 rue Mazarine 75006 Paris France
| | - Mesut Demirelli
- Sorbonne Universités UPMC Univ Paris 06, Collège de France UMR CNRS 7574, Laboratoire de Chimie de la Matière Condensée de Paris Paris cedex 05 France
- PSL Research University 60 rue Mazarine 75006 Paris France
| | - Thibaud Coradin
- Sorbonne Universités UPMC Univ Paris 06, Collège de France UMR CNRS 7574, Laboratoire de Chimie de la Matière Condensée de Paris Paris cedex 05 France
- PSL Research University 60 rue Mazarine 75006 Paris France
| | - Nicolas Delsuc
- Laboratoire des Biomolécules, Département de Chimie, École normale supérieure PSL Research University, Sorbonne Universités, UPMC Univ. Paris 06, CNRS 24 rue Lhomond 75005 Paris France
| | - Carole Aimé
- Sorbonne Universités UPMC Univ Paris 06, Collège de France UMR CNRS 7574, Laboratoire de Chimie de la Matière Condensée de Paris Paris cedex 05 France
- PSL Research University 60 rue Mazarine 75006 Paris France
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10
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Yoshikawa M, Tamura Y, Wakabayashi R, Tamai M, Shimojima A, Kuroda K. Protecting and Leaving Functions of Trimethylsilyl Groups in Trimethylsilylated Silicates for the Synthesis of Alkoxysiloxane Oligomers. Angew Chem Int Ed Engl 2017; 56:13990-13994. [PMID: 28895273 DOI: 10.1002/anie.201705942] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Indexed: 11/10/2022]
Abstract
The concept of protecting groups and leaving groups in organic synthesis was applied to the synthesis of siloxane-based molecules. Alkoxy-functionalized siloxane oligomers composed of SiO4 , RSiO3 , or R2 SiO2 units were chosen as targets (R: functional groups, such as Me and Ph). Herein we describe a novel synthesis of alkoxysiloxane oligomers based on the substitution reaction of trimethylsilyl (TMS) groups with alkoxysilyl groups. Oligosiloxanes possessing TMS groups were reacted with alkoxychlorosilane in the presence of BiCl3 as a catalyst. TMS groups were substituted with alkoxysilyl groups, leading to the synthesis of alkoxysiloxane oligomers. Siloxane oligomers composed of RSiO3 and R2 SiO2 units were synthesized more efficiently than those composed of SiO4 units, suggesting that the steric hindrance around the TMS groups of the oligosiloxanes makes a difference in the degree of substitution. This reaction uses TMS groups as both protecting and leaving groups for SiOH/SiO- groups.
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Affiliation(s)
- Masashi Yoshikawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Yasuhiro Tamura
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Ryutaro Wakabayashi
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo, 169-8555, Japan.,Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo, 169-0051, Japan
| | - Misa Tamai
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Atsushi Shimojima
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Kazuyuki Kuroda
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo, 169-8555, Japan.,Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo, 169-0051, Japan
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11
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Yoshikawa M, Tamura Y, Wakabayashi R, Tamai M, Shimojima A, Kuroda K. Protecting and Leaving Functions of Trimethylsilyl Groups in Trimethylsilylated Silicates for the Synthesis of Alkoxysiloxane Oligomers. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705942] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Masashi Yoshikawa
- Department of Applied Chemistry; Faculty of Science and Engineering; Waseda University; 3-4-1 Ohkubo Shinjuku-ku Tokyo 169-8555 Japan
| | - Yasuhiro Tamura
- Department of Applied Chemistry; Faculty of Science and Engineering; Waseda University; 3-4-1 Ohkubo Shinjuku-ku Tokyo 169-8555 Japan
| | - Ryutaro Wakabayashi
- Department of Applied Chemistry; Faculty of Science and Engineering; Waseda University; 3-4-1 Ohkubo Shinjuku-ku Tokyo 169-8555 Japan
- Kagami Memorial Research Institute for Materials Science and Technology; Waseda University; 2-8-26 Nishiwaseda Shinjuku-ku Tokyo 169-0051 Japan
| | - Misa Tamai
- Department of Applied Chemistry; Faculty of Science and Engineering; Waseda University; 3-4-1 Ohkubo Shinjuku-ku Tokyo 169-8555 Japan
| | - Atsushi Shimojima
- Department of Applied Chemistry; Faculty of Science and Engineering; Waseda University; 3-4-1 Ohkubo Shinjuku-ku Tokyo 169-8555 Japan
| | - Kazuyuki Kuroda
- Department of Applied Chemistry; Faculty of Science and Engineering; Waseda University; 3-4-1 Ohkubo Shinjuku-ku Tokyo 169-8555 Japan
- Kagami Memorial Research Institute for Materials Science and Technology; Waseda University; 2-8-26 Nishiwaseda Shinjuku-ku Tokyo 169-0051 Japan
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12
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Xie H, Chen M, Wu L. Hierarchical TiO 2 /SnO 2 Hollow Spheres Coated with Graphitized Carbon for High-Performance Electrochemical Li-Ion Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1604283. [PMID: 28417582 DOI: 10.1002/smll.201604283] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 03/03/2017] [Indexed: 06/07/2023]
Abstract
A self-templated strategy is developed to fabricate hierarchical TiO2 /SnO2 hollow spheres coated with graphitized carbon (HTSO/GC-HSs) by combined sol-gel processes with hydrothermal treatment and calcination. The as-prepared mesoporous HTSO/GC-HSs present an approximate yolk-double-shell structure, with high specific area and small nanocrystals of TiO2 and SnO2 , and thus exhibit superior electrochemical reactivity and stability when used as anode materials for Li-ion batteries. A high reversible specific capacity of about 310 mAh g-1 at a high current density of 5 A g-1 can be achieved over 500 cycles indicating very good cycle stability and rate performance.
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Affiliation(s)
- Huiqi Xie
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, P. R. China
| | - Min Chen
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, P. R. China
| | - Limin Wu
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, P. R. China
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13
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Nunes SC, Toquer G, Cardoso MA, Mayoral A, Ferreira RAS, Carlos LD, Ferreira P, Almeida P, Cattoën X, Wong Chi Man M, de Zea Bermudez V. Structuring of Alkyl-Triazole Bridged Silsesquioxanes. ChemistrySelect 2017. [DOI: 10.1002/slct.201601806] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- S. C. Nunes
- CICS - Health Sciences Research Center and Chemistry Department; University of Beira Interior; 6201-001 Covilhã Portugal
- Department Chemistry; University of Trás-os-Montes e Alto Douro; 5000-801 Vila Real Portugal
| | - G. Toquer
- Institut de Chimie Séparative de Marcoule; (UMR 5257 CEA-CNRS-UM2-ENSCM), BP17171; 30207 Bagnols sur Cèze France
| | - M. A. Cardoso
- Department Chemistry; University of Trás-os-Montes e Alto Douro; 5000-801 Vila Real Portugal
- Department of Physics, CICECO - Aveiro Institute of Materials; University of Aveiro; 3810-193 Aveiro Portugal
| | - A. Mayoral
- Laboratorio de Microscopias Avanzadas; Instituto de Nanociencia de Aragon; Universidad de Zaragoza; 50018 Zaragoza Spain
| | - R. A. S. Ferreira
- Department of Physics, CICECO - Aveiro Institute of Materials; University of Aveiro; 3810-193 Aveiro Portugal
| | - L. D. Carlos
- Department of Physics, CICECO - Aveiro Institute of Materials; University of Aveiro; 3810-193 Aveiro Portugal
| | - P. Ferreira
- Department of Materials and Ceramic Engineering; CICECO - Aveiro Institute of Materials; University of Aveiro; 3810-193 Aveiro Portugal
| | - P. Almeida
- CICS - Health Sciences Research Center and Chemistry Department; University of Beira Interior; 6201-001 Covilhã Portugal
| | - X. Cattoën
- Inst NEEL; Univ. Grenoble Alpes, Inst NEEL F-; 38042 Grenoble, F38042 Grenoble France
| | - M. Wong Chi Man
- Institut Charles Gerhardt Montpellier; UMR5253 CNRS-ENSCM-UM; 8, rue de l'école normale 34296 Montpellier France
| | - V. de Zea Bermudez
- Department Chemistry; University of Trás-os-Montes e Alto Douro; 5000-801 Vila Real Portugal
- CQ-VR, University of Trás-os-Montes e Alto Douro; 5000-801 Vila Real Portugal
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14
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Liu H, Fu ZE, Song F, Liu Q, Chen L. The controllable construction and properties characterization of organic–inorganic hybrid materials based on benzoxazine-bridged polysilsesquioxanes. RSC Adv 2017. [DOI: 10.1039/c6ra26150g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Some controllable morphology organic–inorganic hybrid materials have been prepared via the homopolymerization of benzoxazine-bridged polysilsesquioxanes precursors with different degrees of the triethoxysilane hydrolysis condensation.
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Affiliation(s)
- Huan Liu
- College of Materials Science and Engineering
- Hunan University of Science and Technology
- Xiangtan
- People's Republic of China
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers
| | - Zi-en Fu
- Key Laboratory of Polymer Material for Electronics
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou 510650
- People's Republic of China
| | - Fei Song
- College of Materials Science and Engineering
- Hunan University of Science and Technology
- Xiangtan
- People's Republic of China
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers
| | - Qingquan Liu
- College of Materials Science and Engineering
- Hunan University of Science and Technology
- Xiangtan
- People's Republic of China
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers
| | - Lijuan Chen
- College of Materials Science and Engineering
- Hunan University of Science and Technology
- Xiangtan
- People's Republic of China
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers
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15
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Yang XY, Chen LH, Li Y, Rooke JC, Sanchez C, Su BL. Hierarchically porous materials: synthesis strategies and structure design. Chem Soc Rev 2017; 46:481-558. [DOI: 10.1039/c6cs00829a] [Citation(s) in RCA: 839] [Impact Index Per Article: 119.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This review addresses recent advances in synthesis strategies of hierarchically porous materials and their structural design from micro-, meso- to macro-length scale.
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Affiliation(s)
- Xiao-Yu Yang
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
| | - Li-Hua Chen
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
| | - Yu Li
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
| | - Joanna Claire Rooke
- Laboratory of Inorganic Materials Chemistry (CMI)
- University of Namur
- B-5000 Namur
- Belgium
| | - Clément Sanchez
- Chimie de la Matiere Condensee de Paris
- UniversitePierre et Marie Curie (Paris VI)
- Collège de France
- France
| | - Bao-Lian Su
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
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16
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Wang PSP, Schepartz A. β-Peptide bundles: Design. Build. Analyze. Biosynthesize. Chem Commun (Camb) 2016; 52:7420-32. [PMID: 27146019 DOI: 10.1039/c6cc01546h] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Peptides containing β-amino acids are unique non-natural polymers known to assemble into protein-like tertiary and quaternary structures. When composed solely of β-amino acids, the structures formed, defined assemblies of 14-helices called β-peptide bundles, fold cooperatively in water solvent into unique and discrete quaternary assemblies that are highly thermostable, bind complex substrates and metal ion cofactors, and, in certain cases, catalyze chemical reactions. In this Perspective, we recount the design and elaboration of β-peptide bundles and provide an outlook on recent, unexpected discoveries that could influence research on β-peptides and β-peptide bundles (and β-amino acid-containing proteins) for decades to come.
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Affiliation(s)
- Pam S P Wang
- Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT 06511, USA.
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17
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Bauer JO, Strohmann C. Recent Progress in Asymmetric Synthesis and Application of Difunctionalized Silicon-Stereogenic Silanes. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600100] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jonathan O. Bauer
- Anorganische Chemie; Technische Universität Dortmund; Otto-Hahn-Straße 6 44227 Dortmund Germany
- Department of Organic Chemistry; The Weizmann Institute of Science; P. O. Box 26 76100 Rehovot Israel
| | - Carsten Strohmann
- Anorganische Chemie; Technische Universität Dortmund; Otto-Hahn-Straße 6 44227 Dortmund Germany
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18
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Zhao C, Wei X, Huang Y, Ma J, Cao K, Chang G, Yang J. Preparation and unique dielectric properties of nanoporous materials with well-controlled closed-nanopores. Phys Chem Chem Phys 2016; 18:19183-93. [DOI: 10.1039/c6cp00465b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Although general porous materials have a low dielectric constant, their uncontrollable opened porous structure results in high dielectric loss and poor barrier properties, thus limiting their application as interconnect dielectrics.
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Affiliation(s)
- Cuijiao Zhao
- State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials
- Southwest University of Science and Technology
- Mianyang
- China
- Hefei Institutes of Physical Science
| | - Xiaonan Wei
- State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials
- Southwest University of Science and Technology
- Mianyang
- China
| | - Yawen Huang
- State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials
- Southwest University of Science and Technology
- Mianyang
- China
| | - Jiajun Ma
- State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials
- Southwest University of Science and Technology
- Mianyang
- China
| | - Ke Cao
- State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials
- Southwest University of Science and Technology
- Mianyang
- China
| | - Guanjun Chang
- State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials
- Southwest University of Science and Technology
- Mianyang
- China
| | - Junxiao Yang
- State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials
- Southwest University of Science and Technology
- Mianyang
- China
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19
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Yang Y, Liu R, Wu J, Jiang X, Cao P, Hu X, Pan T, Qiu C, Yang J, Song Y, Wu D, Su Y. Bottom-up Fabrication of Graphene on Silicon/Silica Substrate via a Facile Soft-hard Template Approach. Sci Rep 2015; 5:13480. [PMID: 26311022 PMCID: PMC4550833 DOI: 10.1038/srep13480] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 07/14/2015] [Indexed: 11/23/2022] Open
Abstract
In this work, a novel soft-hard template method towards the direct fabrication of graphene films on silicon/silica substrate is developed via a tri-constituent self-assembly route. Using cetyl trimethyl ammonium bromide (CTAB) as a soft template, silica (SiO2) from tetramethoxysilane as a hard template, and pyrene as a carbon source, the self-assembly process allows the formation of a sandwich-like SiO2/CTAB/pyrene composite, which can be further converted to high quantity graphene films with a thickness of ~1 nm and a size of over 5 μm by thermal treatment. The morphology and thickness of the graphene films can be effectively controlled through the adjustment of the ratio of pyrene to CTAB. Furthermore, a high nonlinear refractive index n2 of ~10−12 m2 W−1 is measured from graphene/silica hybrid film, which is six orders of magnitude larger than that of silicon and comparable to the graphene from chemical vapor deposition process.
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Affiliation(s)
- Yuxing Yang
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ruili Liu
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jiayang Wu
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xinhong Jiang
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Pan Cao
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiaofeng Hu
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ting Pan
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ciyuan Qiu
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Junyi Yang
- School of Physical Science and Technology, Soochow University, Soochow 215006, China
| | - Yinglin Song
- School of Physical Science and Technology, Soochow University, Soochow 215006, China
| | - Dongqing Wu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yikai Su
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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20
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Li Z, Zuo S, Zhou J, Yuan X, Song Y, Zhang H. Synthesis and Luminescence of Eu-N2,N6-Bis(2-hydroxyethyl)pyridine-2,6-dicarboxamide Complexes Containing Mesoporous Material. CHINESE J CHEM 2015. [DOI: 10.1002/cjoc.201400714] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Li Z, Zhou JJ, Zuo SY, Yuan X, Ma CC, Song YS, Zhang H. Synthesis of lanthanide-based SBA-15 mesoporous hybrids by a novel route. CHEMICAL PAPERS 2015. [DOI: 10.1515/chempap-2015-0172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe ligand N
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22
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Nunes SC, Ferreira CB, Ferreira RAS, Carlos LD, Ferro MC, Mano JF, Almeida P, de Zea Bermudez V. Fractality and metastability of a complex amide cross-linked dipodal alkyl/siloxane hybrid. RSC Adv 2014. [DOI: 10.1039/c4ra11300d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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23
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Kong Z, Yue B, Deng W, Zhu K, Yan M, Peng Y, He H. Direct synthesis of hierarchically porous TS-1 through a solvent-evaporation route and its application as an oxidation catalyst. Appl Organomet Chem 2014. [DOI: 10.1002/aoc.3115] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zuping Kong
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials; Fudan University; Shanghai 200433 People's Republic of China
| | - Bin Yue
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials; Fudan University; Shanghai 200433 People's Republic of China
| | - Wei Deng
- East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Kake Zhu
- East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Mengguo Yan
- East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Yangfeng Peng
- East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Heyong He
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials; Fudan University; Shanghai 200433 People's Republic of China
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24
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Chemtob A, Ni L, Croutxé-Barghorn C, Boury B. Ordered hybrids from template-free organosilane self-assembly. Chemistry 2014; 20:1790-806. [PMID: 24449381 DOI: 10.1002/chem.201303070] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Despite considerable achievements over the last two decades, nonporous organic-inorganic hybrid materials are mostly amorphous, especially in the absence of solvothermal processes. The organosilane self-assembly approach is one of the few opportunities for creating a regular assembly of organic and inorganic moieties. Additionally, well-established organosilicon chemistry enables the introduction of numerous organic functionalities. The synthesis of periodically ordered hybrids relies on mono-, bis-, or multisilylated organosilane building blocks self-assembling into hybrid mesostructures or superstructures, subsequently cross-linked by siloxane Si-O-Si condensation. The general synthesis procedure is template-free and one-step. However, three concurrent processes underlie the generation of self-organized hybrid networks: thermodynamics of amphiphilic aggregation, dynamic self-assembly, and kinetically controlled sol-gel chemistry. Hence, the set of experimental conditions and the precursor structure are of paramount importance in achieving long-range order. Since the first developments in the mid-1990s, the subject has seen considerable progress leading to many innovative advanced nanomaterials providing promising applications in membranes, pollutant remediation, catalysis, conductive coatings, and optoelectronics. This work reviews, comprehensively, the primary evolution of this expanding field of research.
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Affiliation(s)
- Abraham Chemtob
- Laboratory of Photochemistry and Macromolecular Engineering, ENSCMu, University of Haute-Alsace, 3 rue Alfred Werner 68093 Mulhouse Cedex (France), Fax: (+33) 389335014.
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25
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KANEKO Y. Preparation of Ionic Silsesquioxanes with Controlled Structures and Their Functionalization. KOBUNSHI RONBUNSHU 2014. [DOI: 10.1295/koron.71.443] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Yoshikawa M, Wakabayashi R, Tamai M, Kuroda K. Synthesis of a multifunctional alkoxysiloxane oligomer. NEW J CHEM 2014. [DOI: 10.1039/c4nj00204k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The siloxane bonds of oligomer 1 were not cleaved by hydrolysis, indicating the suitability of 1 for controlled hybrid preparation.
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Affiliation(s)
- Masashi Yoshikawa
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Waseda University
- Tokyo, Japan
| | - Ryutaro Wakabayashi
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Waseda University
- Tokyo, Japan
- Kagami Memorial Research Institute for Materials Science and Technology
| | - Misa Tamai
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Waseda University
- Tokyo, Japan
| | - Kazuyuki Kuroda
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Waseda University
- Tokyo, Japan
- Kagami Memorial Research Institute for Materials Science and Technology
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27
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Min C, Pu Q, Yang L, Fan H. Synthesis, film morphology, and performance on cotton substrates of dodecyl/piperazine functional polysiloxane. J Appl Polym Sci 2013. [DOI: 10.1002/app.40186] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Caina Min
- State Key Laboratory of Chemical Engineering; Department of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 China
| | - Qun Pu
- State Key Laboratory of Chemical Engineering; Department of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 China
| | - Liu Yang
- State Key Laboratory of Chemical Engineering; Department of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 China
| | - Hong Fan
- State Key Laboratory of Chemical Engineering; Department of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 China
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28
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Nunes SC, Ferreira RAS, Carlos LD, Almeida P, de Zea Bermudez V. Lamellar Salt-Doped Hybrids with Two Reversible Order/Disorder Phase Transitions. J Phys Chem B 2013; 117:14529-43. [DOI: 10.1021/jp407366c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sílvia C. Nunes
- Chemistry
Department and CICS - Centro de Investigação em Ciências
da Saúde, University of Beira Interior, 6200-001 Covilhã, Portugal
- Chemistry
Department, University of Trás-os-Montes and Alto Douro, 5001-801 Vila Real, Portugal
| | - Rute A. S. Ferreira
- Physics
Department and CICECO, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Luís D. Carlos
- Physics
Department and CICECO, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Paulo Almeida
- Chemistry
Department and CICS - Centro de Investigação em Ciências
da Saúde, University of Beira Interior, 6200-001 Covilhã, Portugal
| | - Verónica de Zea Bermudez
- Chemistry
Department, University of Trás-os-Montes and Alto Douro, 5001-801 Vila Real, Portugal
- CQ-VR, University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal
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29
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Monge-Marcet A, Cattoën X, Dieudonné P, Pleixats R, Wong Chi Man M. Nanostructuring of Ionic Bridged Silsesquioxanes. Chem Asian J 2013; 8:2235-41. [DOI: 10.1002/asia.201300538] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Indexed: 11/11/2022]
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30
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Soft templating strategies for the synthesis of mesoporous materials: inorganic, organic-inorganic hybrid and purely organic solids. Adv Colloid Interface Sci 2013; 189-190:21-41. [PMID: 23337774 DOI: 10.1016/j.cis.2012.12.002] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Revised: 12/05/2012] [Accepted: 12/20/2012] [Indexed: 11/21/2022]
Abstract
With the discovery of MCM-41 by Mobil researchers in 1992 the journey of the research on mesoporous materials started and in the 21st century this area of scientific investigation have extended into numerous branches, many of which contribute significantly in emerging areas like catalysis, energy, environment and biomedical research. As a consequence thousands of publications came out in large varieties of national and international journals. In this review, we have tried to summarize the published works on various synthetic pathways and formation mechanisms of different mesoporous materials viz. inorganic, organic-inorganic hybrid and purely organic solids via soft templating pathways. Generation of nanoscale porosity in a solid material usually requires participation of organic template (more specifically surfactants and their supramolecular assemblies) called structure-directing agent (SDA) in the bottom-up chemical reaction process. Different techniques employed for the syntheses of inorganic mesoporous solids, like silicas, metal doped silicas, transition and non-transition metal oxides, mixed oxides, metallophosphates, organic-inorganic hybrids as well as purely organic mesoporous materials like carbons, polymers etc. using surfactants are depicted schematically and elaborately in this paper. Moreover, some of the frontline applications of these mesoporous solids, which are directly related to their functionality, composition and surface properties are discussed at the appropriate places.
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31
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Kadib AE, Finiels A, Marcotte N, Brunel D. Self-templating amphiphilic polysiloxanes to design nanostructured silica-based architectures. Chem Commun (Camb) 2013; 49:5168-70. [DOI: 10.1039/c3cc41943f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Pichon BP, Scampini S, Bied C, Moreau JJE, Wong Chi Man M. The Influence of Arylene and Alkylene Units on the Structuring of Urea-Based Bridged Silsesquioxanes. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200616] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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33
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Liu F, Kang W, Zhao C, Su Y, Wang D, Shen Q. Integrative and intermediate self-assembly of multi-walled hybrid nanotubes for catanionic biomimetics. Chem Commun (Camb) 2011; 47:12482-4. [PMID: 22022703 DOI: 10.1039/c1cc14557f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hollow cylindrical multi-walled hybrid nanotubes go through dynamic growth and subsequent disappearance during the biomimetic fabrication of hexagonal calcite platelets, simulating the in vivo purpose-driven self-assembly of tubular plasma-membrane calcium-ion channels for biomaterials to adapt, respond and repair.
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Affiliation(s)
- Fenglin Liu
- Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, Jinan 250100, P. R. China
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34
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Boullanger A, Gracy G, Bibent N, Devautour-Vinot S, Clément S, Mehdi A. From an Octakis(3-cyanopropyl)silsesquioxane Building Block to a Highly COOH-Functionalized Hybrid Organic-Inorganic Material. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201101037] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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35
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Lowe RD, Pellow MA, Stack TDP, Chidsey CED. Deposition of dense siloxane monolayers from water and trimethoxyorganosilane vapor. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:9928-9935. [PMID: 21721567 DOI: 10.1021/la201333y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A convenient, laboratory-scale method for the vapor deposition of dense siloxane monolayers onto oxide substrates was demonstrated. This method was studied and optimized at 110 °C under reduced pressure with the vapor of tetradecyltris(deuteromethoxy)silane, (CD(3)O)(3)Si(CH(2))(13)CH(3), and water from the dehydration of MgSO(4)·7H(2)O. Ellipsometric thicknesses, water contact angles, Fourier transform infrared (FTIR) spectroscopy, and electrochemical capacitance measurements were used to probe monolayer densification. The CD(3) stretching mode in the FTIR spectrum was monitored as a function of the deposition time and amounts of silane and water reactants. This method probed the unhydrolyzed methoxy groups on adsorbed silanes. Excess silane and water were necessary to achieve dense, completely hydrolyzed monolayers. In the presence of sufficient silane, an excess of water above the calculated stoichiometric amount was necessary to hydrolyze all methoxy groups and achieve dense monolayers. The excess water was partially attributed to the reversibility of the hydrolysis of the methoxy groups.
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Affiliation(s)
- Randall D Lowe
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
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36
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Zhu K, Sun J, Liu J, Wang L, Wan H, Hu J, Wang Y, Peden CHF, Nie Z. Solvent Evaporation Assisted Preparation of Oriented Nanocrystalline Mesoporous MFI Zeolites. ACS Catal 2011. [DOI: 10.1021/cs200085e] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Kake Zhu
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Junming Sun
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Jun Liu
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Liqiong Wang
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Haiying Wan
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Jianzhi Hu
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Yong Wang
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Charles H. F. Peden
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Zimin Nie
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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37
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Liu HC, Su WC, Liu YL. Self-assembled benzoxazine-bridged polysilsesquioxanes exhibiting ultralow-dielectric constants and yellow-light photoluminescent emission. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10815h] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Effect of organic additives on the formation of alkylsiloxane mesophases. J Colloid Interface Sci 2010; 350:155-60. [DOI: 10.1016/j.jcis.2010.06.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2010] [Revised: 06/08/2010] [Accepted: 06/08/2010] [Indexed: 11/18/2022]
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39
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Reinholdt MX, Kaliaguine S. Proton exchange membranes for application in fuel cells: grafted silica/SPEEK nanocomposite elaboration and characterization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:11184-11195. [PMID: 20550155 DOI: 10.1021/la100051j] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Hydrogen technologies and especially fuel cells are key components in the battle to find alternate sources of energy to the highly polluting and economically constraining fossil fuels in an aim to preserve the environment. The present paper shows the synthesis of surface functionalized silica nanoparticles, which are used to prepare grafted silica/SPEEK nanocomposite membranes. The nanoparticles are grafted either with hexadecylsilyl or aminopropyldimethylsilyl moieties or both. The synthesized particles are analyzed using XRD, NMR, TEM, and DLS to collect information on the nature of the particles and the functional groups, on the particle sizes, and on the hydrophilic/hydrophobic character. The composite membranes prepared using the synthesized particles and two SPEEK polymers with sulfonation degrees of 69.4% and 85.0% are characterized for their proton conductivity and water uptake properties. The corresponding curves are very similar for the composites prepared with both polymers and the nanoparticles bearing the two functional groups. The composites prepared with the nanoparticles bearing solely the aminopropyldimethylsilyl moiety exhibit lower conductivity and water uptake, possibly due to higher interaction of the polymer sulfonic acid sites with the amine groups. The composites prepared with the nanoparticles bearing solely the hexadecylsilyl moiety were not further investigated because of very high particles segregation. A study of the proton conductivity as a function of temperature was performed on selected membranes and showed that nanocomposites made with nanoparticles bearing both functional moieties have a higher conductivity at higher temperatures.
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Affiliation(s)
- Marc X Reinholdt
- Département de Génie Chimique, Université Laval, Québec, QC G1 V 0A6, Canada
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Wakabayashi R, Kawahara K, Kuroda K. Nonhydrolytic Synthesis of Branched Alkoxysiloxane Oligomers Si[OSiH(OR)2]4 (R=Me, Et). Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201001640] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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41
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Wakabayashi R, Kawahara K, Kuroda K. Nonhydrolytic Synthesis of Branched Alkoxysiloxane Oligomers Si[OSiH(OR)2]4 (R=Me, Et). Angew Chem Int Ed Engl 2010; 49:5273-7. [DOI: 10.1002/anie.201001640] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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42
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Solid phase extractors derived by functionalising sub-micro silica gel with chelating agents and their pH-tunable adsorbing capability towards Pb(II) and Ag(I). Mikrochim Acta 2010. [DOI: 10.1007/s00604-010-0362-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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43
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Structural transformations of lamellar assembly of polysilsesquioxane nanosheets and arsenate adsorptions on transformed variants. Colloids Surf A Physicochem Eng Asp 2010. [DOI: 10.1016/j.colsurfa.2010.02.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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44
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Liu S, Zhang Z, Zhang H, Zhang Y, Wei S, Ren L, Wang C, He Y, Li F, Xiao FS. Phase separation of organic/inorganic hybrids induced by calcination: A novel route for synthesizing mesoporous silica and carbon materials. J Colloid Interface Sci 2010; 345:257-61. [DOI: 10.1016/j.jcis.2010.02.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2009] [Revised: 02/03/2010] [Accepted: 02/04/2010] [Indexed: 11/25/2022]
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45
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Suspène C, Brandès S, Guilard R. Reversible Coordination of Dioxygen by Tripodal Tetraamine Copper Complexes Incorporated in a Porous Silica Framework. Chemistry 2010; 16:6352-64. [DOI: 10.1002/chem.200903148] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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46
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Nasu S, Tsuchiya A, Kuroda K. Preparation of lamellar inorganic–organic hybrids from tetraethoxysilane and a coumarin derivative containing a triethoxysilyl group and photodimerization of the interlayer coumarin groups. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm00407c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Du J, Fukushima M, Sakamoto S, Sakurai M, Suzuki T, Shimojima A, Miyata H, Crudden CM, Kuroda K. Alignment control of self-assembled organosiloxane films derived from alkyloligosiloxane amphiphiles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:13614-13618. [PMID: 19725559 DOI: 10.1021/la901983m] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Transparent and continuous organosiloxane films with macroscopically oriented mesostructures were prepared by dip-coating a substrate, on which a rubbing-treated polyimide film is formed, with hydrolyzed solutions of oligosiloxane precursors (C(n)H(2n+1)Si(OSi(OMe)(3))(3)). The structure of the films depends on the alkyl chain length of the precursors such that films with two-dimensional (2D) hexagonal and lamellar structures are obtained when n = 10 and 16, respectively. In the 2D hexagonal film, the cylindrical organic moieties are aligned perpendicular to the rubbing direction in the plane of the film over the whole film thickness. On the other hand, the lamellar film changes its orientation with increased distance from the substrate surface. While the orientation of the lamellae at the surface of the film is parallel to the film-air interface, they are perpendicularly aligned in the vicinity of the substrate with the layer normal parallel to the rubbing direction. The observed unique orientation of the mesostructures is attributed to the anisotropic hydrophobic interactions between the alkyl chains of the hydrolyzed oligosiloxane molecules and the polymer chains of the polyimide layer oriented by the rubbing treatment.
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Affiliation(s)
- Jenny Du
- Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6, Canada
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Adachi K, Hirano T, Kasai PH, Nakamae K, Iwabuki H, Murakami K. Ethylene-propylene copolymer/ordered polysilsesquioxane nanocomposites prepared via organic acid- or base-catalyzed binary silica water-crosslinking reactions. POLYM INT 2009. [DOI: 10.1002/pi.2729] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kaneko Y, Iyi N. Sol-gel synthesis of rodlike polysilsesquioxanes forming regular higher-ordered nanostructure. Z KRIST-CRYST MATER 2009. [DOI: 10.1524/zkri.2007.222.11.656] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Rodlike polysilsesquioxanes forming regular higher-ordered nanostructure such as hexagonal phase were prepared by sol-gel reaction of organotrimethoxysilanes having amino groups in aqueous solutions of inorganic strong acids. The XRD profiles of the resulting polysilsesquioxanes showed three peaks with the d-value ratio of 1 : 1/√3 : ½, indicating that these polysilsesquioxanes have hexagonal phase. The diffraction peaks shifted by changing the humidity. In addition, the d-values of diffraction peaks increased by ion-exchange reaction with organic compounds such as fatty acid salt and anionic polymer. Therefore, this hexagonal phase originated from the stacking of rodlike polysilsesquioxanes with Si–O–Si framework at the core and ammonium groups extruding outside. This Si–O–Si framework probably formed a ladder or ladder-related structure, which was characterized by solid-state 29Si NMR and IR spectrometries.
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Chen HJ, Li SY, Liu XJ, Li RP, Smilgies DM, Wu ZH, Li Z. Evaluation on Pore Structures of Organosilicate Thin Films by Grazing Incidence Small-Angle X-ray Scattering. J Phys Chem B 2009; 113:12623-7. [DOI: 10.1021/jp905457b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hong-Ji Chen
- Department of Material Science & Engineering, Jinan University, Guangzhou 510632, P. R. China, Materials Science and Engineering, Cornell University, Ithaca, New York 14853, Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, and Corning Inc., SP-FR-6, Corning, New York 14830, and Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Sheng-Ying Li
- Department of Material Science & Engineering, Jinan University, Guangzhou 510632, P. R. China, Materials Science and Engineering, Cornell University, Ithaca, New York 14853, Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, and Corning Inc., SP-FR-6, Corning, New York 14830, and Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Xiao-Jun Liu
- Department of Material Science & Engineering, Jinan University, Guangzhou 510632, P. R. China, Materials Science and Engineering, Cornell University, Ithaca, New York 14853, Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, and Corning Inc., SP-FR-6, Corning, New York 14830, and Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Rui-Peng Li
- Department of Material Science & Engineering, Jinan University, Guangzhou 510632, P. R. China, Materials Science and Engineering, Cornell University, Ithaca, New York 14853, Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, and Corning Inc., SP-FR-6, Corning, New York 14830, and Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Detlef-M. Smilgies
- Department of Material Science & Engineering, Jinan University, Guangzhou 510632, P. R. China, Materials Science and Engineering, Cornell University, Ithaca, New York 14853, Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, and Corning Inc., SP-FR-6, Corning, New York 14830, and Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Zhong-Hua Wu
- Department of Material Science & Engineering, Jinan University, Guangzhou 510632, P. R. China, Materials Science and Engineering, Cornell University, Ithaca, New York 14853, Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, and Corning Inc., SP-FR-6, Corning, New York 14830, and Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Zhihong Li
- Department of Material Science & Engineering, Jinan University, Guangzhou 510632, P. R. China, Materials Science and Engineering, Cornell University, Ithaca, New York 14853, Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, and Corning Inc., SP-FR-6, Corning, New York 14830, and Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, P. R. China
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