1
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Schubert U. Poröse Feststoffe. CHEM UNSERER ZEIT 2022. [DOI: 10.1002/ciuz.202200002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ulrich Schubert
- Institut für Materialchemie Technische Universität Wien Getreidemarkt 9 1060 Wien Österreich
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2
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Mukherjee A, Akulov AA, Santra S, Varaksin MV, Kim GA, Kopchuk DS, Taniya OS, Zyryanov GV, Chupakhin ON. 2,7-Diazapyrenes: a brief review on synthetic strategies and application opportunities. RSC Adv 2022; 12:9323-9341. [PMID: 35424878 PMCID: PMC8985108 DOI: 10.1039/d2ra00260d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 03/01/2022] [Indexed: 11/26/2022] Open
Abstract
2,7-Diazapyrenes are promising azaaromatic scaffolds with a unique structural geometry and supramolecular properties. This core moiety and its derivatives with some N-methyl cations like N-methyl-2,7,-diazapyrenium, and N,N'-dimethyl-2,7-diazapyrenium attract special attention due to their challenging photophysical properties, especially in the context of interactions with DNA and some of its mononucleotides. This review focuses on the analysis of the main synthetic approaches to 2,7-diazapyrene and its functional derivatives employing various strategies under different reaction conditions. The opportunities of applications of 2,7-diazapyrenes, including their remarkable photophysical and supramolecular properties, DNA-bindings, in sensors, molecular electronics, supramolecular systems, and related areas are also highlighted.
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Affiliation(s)
- Anindita Mukherjee
- Ural Federal University named after the first President of Russia B. N. Yeltsin 19 Mira str. Yekaterinburg 620002 Russian Federation
| | - Alexey A Akulov
- Ural Federal University named after the first President of Russia B. N. Yeltsin 19 Mira str. Yekaterinburg 620002 Russian Federation
| | - Sougata Santra
- Ural Federal University named after the first President of Russia B. N. Yeltsin 19 Mira str. Yekaterinburg 620002 Russian Federation
| | - Mikhail V Varaksin
- Ural Federal University named after the first President of Russia B. N. Yeltsin 19 Mira str. Yekaterinburg 620002 Russian Federation
- I. Ya. Postovskiy Institute of Organic Synthesis, UB of the RAS 22 S. Kovalevskoy Str. Yekaterinburg 620219 Russian Federation
| | - Grigory A Kim
- I. Ya. Postovskiy Institute of Organic Synthesis, UB of the RAS 22 S. Kovalevskoy Str. Yekaterinburg 620219 Russian Federation
| | - Dmitry S Kopchuk
- Ural Federal University named after the first President of Russia B. N. Yeltsin 19 Mira str. Yekaterinburg 620002 Russian Federation
- I. Ya. Postovskiy Institute of Organic Synthesis, UB of the RAS 22 S. Kovalevskoy Str. Yekaterinburg 620219 Russian Federation
| | - Olga S Taniya
- Ural Federal University named after the first President of Russia B. N. Yeltsin 19 Mira str. Yekaterinburg 620002 Russian Federation
| | - Grigory V Zyryanov
- Ural Federal University named after the first President of Russia B. N. Yeltsin 19 Mira str. Yekaterinburg 620002 Russian Federation
- I. Ya. Postovskiy Institute of Organic Synthesis, UB of the RAS 22 S. Kovalevskoy Str. Yekaterinburg 620219 Russian Federation
| | - Oleg N Chupakhin
- Ural Federal University named after the first President of Russia B. N. Yeltsin 19 Mira str. Yekaterinburg 620002 Russian Federation
- I. Ya. Postovskiy Institute of Organic Synthesis, UB of the RAS 22 S. Kovalevskoy Str. Yekaterinburg 620219 Russian Federation
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3
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Tardy BL, Mattos BD, Otoni CG, Beaumont M, Majoinen J, Kämäräinen T, Rojas OJ. Deconstruction and Reassembly of Renewable Polymers and Biocolloids into Next Generation Structured Materials. Chem Rev 2021; 121:14088-14188. [PMID: 34415732 PMCID: PMC8630709 DOI: 10.1021/acs.chemrev.0c01333] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Indexed: 12/12/2022]
Abstract
This review considers the most recent developments in supramolecular and supraparticle structures obtained from natural, renewable biopolymers as well as their disassembly and reassembly into engineered materials. We introduce the main interactions that control bottom-up synthesis and top-down design at different length scales, highlighting the promise of natural biopolymers and associated building blocks. The latter have become main actors in the recent surge of the scientific and patent literature related to the subject. Such developments make prominent use of multicomponent and hierarchical polymeric assemblies and structures that contain polysaccharides (cellulose, chitin, and others), polyphenols (lignins, tannins), and proteins (soy, whey, silk, and other proteins). We offer a comprehensive discussion about the interactions that exist in their native architectures (including multicomponent and composite forms), the chemical modification of polysaccharides and their deconstruction into high axial aspect nanofibers and nanorods. We reflect on the availability and suitability of the latter types of building blocks to enable superstructures and colloidal associations. As far as processing, we describe the most relevant transitions, from the solution to the gel state and the routes that can be used to arrive to consolidated materials with prescribed properties. We highlight the implementation of supramolecular and superstructures in different technological fields that exploit the synergies exhibited by renewable polymers and biocolloids integrated in structured materials.
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Affiliation(s)
- Blaise L. Tardy
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Bruno D. Mattos
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Caio G. Otoni
- Department
of Physical Chemistry, Institute of Chemistry, University of Campinas, P.O. Box 6154, Campinas, São Paulo 13083-970, Brazil
- Department
of Materials Engineering, Federal University
of São Carlos, Rod. Washington Luís, km 235, São
Carlos, São Paulo 13565-905, Brazil
| | - Marco Beaumont
- School
of Chemistry and Physics, Queensland University
of Technology, 2 George
Street, Brisbane, Queensland 4001, Australia
- Department
of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences, Vienna, A-3430 Tulln, Austria
| | - Johanna Majoinen
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Tero Kämäräinen
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Orlando J. Rojas
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
- Bioproducts
Institute, Department of Chemical and Biological Engineering, Department
of Chemistry and Department of Wood Science, University of British Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z4, Canada
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4
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Martín‐Illán JÁ, Rodríguez‐San‐Miguel D, Castillo O, Beobide G, Perez‐Carvajal J, Imaz I, Maspoch D, Zamora F. Macroscopic Ultralight Aerogel Monoliths of Imine‐based Covalent Organic Frameworks. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jesús Á. Martín‐Illán
- Departamento de Química Inorgánica Universidad Autónoma de Madrid 28049 Madrid Spain
| | | | - Oscar Castillo
- Departamento de Química Inorgánica Universidad del País Vasco (UPV/EHU) Apartado 644 48080 Bilbao Spain
- Basque Ctr Mat Applicat & Nanostruct (BCMat) Universidad del País Vasco UPV/EHU 48940 Leioa Spain
| | - Garikoitz Beobide
- Departamento de Química Inorgánica Universidad del País Vasco (UPV/EHU) Apartado 644 48080 Bilbao Spain
- Basque Ctr Mat Applicat & Nanostruct (BCMat) Universidad del País Vasco UPV/EHU 48940 Leioa Spain
| | - Javier Perez‐Carvajal
- Laboratoire de Physique de l'Ecole Normale Supérieure, ENS Université PSL CNRS Sorbonne Université Paris France
| | - Inhar Imaz
- Catalan Institute of Nanoscience and Nanotechnology (ICN2) CSIC and BIST Campus UAB Bellaterra 08193 Barcelona Spain
| | - Daniel Maspoch
- Catalan Institute of Nanoscience and Nanotechnology (ICN2) CSIC and BIST Campus UAB Bellaterra 08193 Barcelona Spain
- ICREA Pg. Lluís Companys 23 08010 Barcelona Spain
| | - Félix Zamora
- Departamento de Química Inorgánica Universidad Autónoma de Madrid 28049 Madrid Spain
- Instituto Madrileño de Estudios Avanzados en Nanociencia, (IMDEA-Nanociencia) Cantoblanco 28049 Madrid Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem) Universidad Autónoma de Madrid 28049 Madrid Spain
- Condensed Matter Physics Center (IFIMAC) Universidad Autónoma de Madrid 28049 Madrid Spain
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5
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Martín-Illán JÁ, Rodríguez-San-Miguel D, Castillo O, Beobide G, Perez-Carvajal J, Imaz I, Maspoch D, Zamora F. Macroscopic Ultralight Aerogel Monoliths of Imine-based Covalent Organic Frameworks. Angew Chem Int Ed Engl 2021; 60:13969-13977. [PMID: 33724656 DOI: 10.1002/anie.202100881] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 03/09/2021] [Indexed: 11/11/2022]
Abstract
The use of covalent organic frameworks (COFs) in practical applications demands shaping them into macroscopic objects, which remains challenging. Herein, we report a simple three-step method to produce COF aerogels, based on sol-gel transition, solvent-exchange, and supercritical CO2 drying, in which 2D imine-based COF sheets link together to form hierarchical porous structures. The resultant COF aerogel monoliths have extremely low densities (ca. 0.02 g cm-3 ), high porosity (total porosity values of ca. 99 %), and mechanically behave as elastic materials under a moderate strain (<25-35 %) but become plastic under greater strain. Moreover, these COF aerogels maintain the micro- and meso-porosity of their constituent COFs, and show excellent absorption capacity (e.g. toluene uptake: 32 g g-1 ), with high removal efficiency (ca. 99 %). The same three-step method can be used to create functional composites of these COF aerogels with nanomaterials.
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Affiliation(s)
- Jesús Á Martín-Illán
- Departamento de Química Inorgánica, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | | | - Oscar Castillo
- Departamento de Química Inorgánica, Universidad del País Vasco (UPV/EHU), Apartado 644, 48080, Bilbao, Spain.,Basque Ctr Mat Applicat & Nanostruct (BCMat), Universidad del País Vasco UPV/EHU, 48940, Leioa, Spain
| | - Garikoitz Beobide
- Departamento de Química Inorgánica, Universidad del País Vasco (UPV/EHU), Apartado 644, 48080, Bilbao, Spain.,Basque Ctr Mat Applicat & Nanostruct (BCMat), Universidad del País Vasco UPV/EHU, 48940, Leioa, Spain
| | - Javier Perez-Carvajal
- Laboratoire de Physique de l'Ecole Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - Inhar Imaz
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Daniel Maspoch
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain.,ICREA, Pg. Lluís Companys 23, 08010, Barcelona, Spain
| | - Félix Zamora
- Departamento de Química Inorgánica, Universidad Autónoma de Madrid, 28049, Madrid, Spain.,Instituto Madrileño de Estudios Avanzados en Nanociencia, (IMDEA-Nanociencia), Cantoblanco, 28049, Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain.,Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049, Madrid, Spain
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6
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Takeshita S, Zhao S, Malfait WJ, Koebel MM. Chemie der Chitosan‐Aerogele: Lenkung der dreidimensionalen Poren für maßgeschneiderte Anwendungen. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202003053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Satoru Takeshita
- Building Energy Materials & Components Laboratory Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa) Überlandstrasse 129 CH-8600 Dübendorf Schweiz
- Research Institute for Chemical Process Technology National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba Central 5, 1-1-1 Higashi 3058565 Tsukuba Japan
| | - Shanyu Zhao
- Building Energy Materials & Components Laboratory Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa) Überlandstrasse 129 CH-8600 Dübendorf Schweiz
| | - Wim J. Malfait
- Building Energy Materials & Components Laboratory Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa) Überlandstrasse 129 CH-8600 Dübendorf Schweiz
| | - Matthias M. Koebel
- Building Energy Materials & Components Laboratory Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa) Überlandstrasse 129 CH-8600 Dübendorf Schweiz
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7
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Takeshita S, Zhao S, Malfait WJ, Koebel MM. Chemistry of Chitosan Aerogels: Three‐Dimensional Pore Control for Tailored Applications. Angew Chem Int Ed Engl 2020; 60:9828-9851. [DOI: 10.1002/anie.202003053] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/06/2020] [Indexed: 01/06/2023]
Affiliation(s)
- Satoru Takeshita
- Building Energy Materials & Components Laboratory Swiss Federal Laboratories for Materials Science and Technology (Empa) Überlandstrasse 129 CH-8600 Dübendorf Switzerland
- Research Institute for Chemical Process Technology National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba Central 5, 1-1-1 Higashi 3058565 Tsukuba Japan
| | - Shanyu Zhao
- Building Energy Materials & Components Laboratory Swiss Federal Laboratories for Materials Science and Technology (Empa) Überlandstrasse 129 CH-8600 Dübendorf Switzerland
| | - Wim J. Malfait
- Building Energy Materials & Components Laboratory Swiss Federal Laboratories for Materials Science and Technology (Empa) Überlandstrasse 129 CH-8600 Dübendorf Switzerland
| | - Matthias M. Koebel
- Building Energy Materials & Components Laboratory Swiss Federal Laboratories for Materials Science and Technology (Empa) Überlandstrasse 129 CH-8600 Dübendorf Switzerland
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8
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Zhan H, Shi QQ, Wu G, Wang JN. A carbon nanotube approach for efficient thermally insulating material with high mechanical stability and fire-retardancy. RSC Adv 2020; 10:21772-21780. [PMID: 35516623 PMCID: PMC9054524 DOI: 10.1039/d0ra03472j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 05/29/2020] [Indexed: 11/21/2022] Open
Abstract
For applications in energy-saving buildings, aerospace industry, and wearable electronic devices, thermally insulating materials (TIMs) are required to possess not only low thermal conductivity but also light weight, mechanical robustness, and environmental stability. However, conventional TIMs can rarely meet these requirements. To overcome this shortcoming, we propose a new strategy for preparing TIMs. This is based on the design of a highly porous structure from carbon nanotubes (CNTs). The CNT structure is constructed by continuous winding of a hollow cylindrical CNT assembly from a high-temperature furnace and subsequent modification by the deposition of amorphous carbon (AC). The resultant sponge-like material is shown to have a record-low density of 2-4 mg cm-3 and a record-low thermal conductivity of 10-14 mW m-1 K-1. Combined with this thermal property, the sponge material also possesses fire-retardancy during burning, mechanical robustness after repeated loading and unloading to a high strain of 90%, and environmental stability from 535 to -196 °C. Such a combination of physical and mechanical properties results from the strengthening of the porous structure by virtue of AC deposition on CNT surfaces and junctions. The high performance of the new TIM constitutes the foundation for it to be used in wide areas, especially under the harsh conditions requiring multifunctionality.
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Affiliation(s)
- Hang Zhan
- School of Mechanical and Power Engineering, East China University of Science and Technology 130 Meilong Road Shanghai 200237 China +86-21-64252360
| | - Qiang Qiang Shi
- School of Mechanical and Power Engineering, East China University of Science and Technology 130 Meilong Road Shanghai 200237 China +86-21-64252360
| | - Guang Wu
- School of Mechanical and Power Engineering, East China University of Science and Technology 130 Meilong Road Shanghai 200237 China +86-21-64252360
| | - Jian Nong Wang
- School of Mechanical and Power Engineering, East China University of Science and Technology 130 Meilong Road Shanghai 200237 China +86-21-64252360
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9
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The Effect of the Co‐Solvent on the Aerogel Formation Directly in Supercritical CO
2
Medium. ChemistrySelect 2020. [DOI: 10.1002/slct.201904936] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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10
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Du R, Joswig JO, Hübner R, Zhou L, Wei W, Hu Y, Eychmüller A. Freeze-Thaw-Promoted Fabrication of Clean and Hierarchically Structured Noble-Metal Aerogels for Electrocatalysis and Photoelectrocatalysis. Angew Chem Int Ed Engl 2020; 59:8293-8300. [PMID: 32187791 PMCID: PMC7317422 DOI: 10.1002/anie.201916484] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/22/2020] [Indexed: 11/17/2022]
Abstract
Noble‐metal aerogels (NMAs) have drawn increasing attention because of their self‐supported conductive networks, high surface areas, and numerous optically/catalytically active sites, enabling their impressive performance in diverse fields. However, the fabrication methods suffer from tedious procedures, long preparation times, unavoidable impurities, and uncontrolled multiscale structures, discouraging their developments. By utilizing the self‐healing properties of noble‐metal aggregates, the freezing‐promoted salting‐out behavior, and the ice‐templating effect, a freeze–thaw method is crafted that is capable of preparing various hierarchically structured noble‐metal gels within one day without extra additives. In light of their cleanliness, the multi‐scale structures, and combined catalytic/optical properties, the electrocatalytic and photoelectrocatalytic performance of NMAs are demonstrated, which surpasses that of commercial noble‐metal catalysts.
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Affiliation(s)
- Ran Du
- Physical Chemistry, Technische Universität Dresden, Bergstr. 66b, 01069, Dresden, Germany
| | - Jan-Ole Joswig
- Theoretische Chemie, Fakultät für Chemie und Lebensmittelchemie, Technische Universität Dresden, 01062, Dresden, Germany
| | - René Hübner
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328, Dresden, Germany
| | - Lin Zhou
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325000, China
| | - Wei Wei
- Physical Chemistry, Technische Universität Dresden, Bergstr. 66b, 01069, Dresden, Germany
| | - Yue Hu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325000, China
| | - Alexander Eychmüller
- Physical Chemistry, Technische Universität Dresden, Bergstr. 66b, 01069, Dresden, Germany
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11
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Du R, Joswig J, Hübner R, Zhou L, Wei W, Hu Y, Eychmüller A. Freeze–Thaw‐Promoted Fabrication of Clean and Hierarchically Structured Noble‐Metal Aerogels for Electrocatalysis and Photoelectrocatalysis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916484] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ran Du
- Physical ChemistryTechnische Universität Dresden Bergstr. 66b 01069 Dresden Germany
| | - Jan‐Ole Joswig
- Theoretische Chemie, Fakultät für Chemie und LebensmittelchemieTechnische Universität Dresden 01062 Dresden Germany
| | - René Hübner
- Helmholtz-Zentrum Dresden-RossendorfInstitute of Ion Beam Physics and Materials Research Bautzner Landstrasse 400 01328 Dresden Germany
| | - Lin Zhou
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou 325000 China
| | - Wei Wei
- Physical ChemistryTechnische Universität Dresden Bergstr. 66b 01069 Dresden Germany
| | - Yue Hu
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou 325000 China
| | - Alexander Eychmüller
- Physical ChemistryTechnische Universität Dresden Bergstr. 66b 01069 Dresden Germany
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12
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Cho HJ, Kim ID, Jung SM. Multifunctional Inorganic Nanomaterial Aerogel Assembled into fSWNT Hydrogel Platform for Ultraselective NO 2 Sensing. ACS APPLIED MATERIALS & INTERFACES 2020; 12:10637-10647. [PMID: 32045199 DOI: 10.1021/acsami.9b21174] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Facile fabrication of multifunctional porous inorganic aerogels remains an outstanding challenge despite the considerable demand for extensive applications. Here, we present the production of a multifunctional porous inorganic nanomaterial aerogel by controllable surface chemistry of a functionalized SWNT (fSWNT) hydrogel platform for the first time. The versatile functional inorganic nanoparticles can be incorporated uniformly on the porous 3D fSWNT hydrogel platform through a facile dip coating method at ambient conditions. The morphology of the multifunctional inorganic aerogel is manipulated by designing the fSWNT hydrogel platform for different requirements of applications. In particular, Pt-SnO2@fSWNT aerogels exhibit high porosity and uniformly distributed ultrafine Pt and SnO2 on the fSWNT platform with controllable particle size (1.5-3.5 nm), which result in significantly high surface area (393 m2 g-1). The ultrafine Pt-SnO2@fSWNT aerogels exhibit highly sensitive (14.77% at 5 ppm) and selective NO2 sensing performance even at room temperature due to the increased active surface area and controllable porous structure of the ultrafine aerogel, which can provide fast transport and penetration of a target gas into the sensing layers. The newly designed multifunctional inorganic aerogel with ultrahigh surface area and high open porosity is a prospective materials platform of high performance gas sensors, which could be also broadly expanded to widespread applications including catalysis and energy storages.
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Affiliation(s)
- Hee-Jin Cho
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Advanced Nanosensor Research Center, KI Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Il-Doo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Advanced Nanosensor Research Center, KI Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Sung Mi Jung
- Environmental Fate & Exposure Research Group, Korea Institute of Toxicology (KIT), Jinju, Gyeongsangnam-do 52834, Republic of Korea
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13
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Liu J, Yang H, Liu K, Miao R, Fang Y. Gel-Emulsion-Templated Polymeric Aerogels for Water Treatment by Organic Liquid Removal and Solar Vapor Generation. CHEMSUSCHEM 2020; 13:749-755. [PMID: 31863570 DOI: 10.1002/cssc.201902970] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/01/2019] [Indexed: 06/10/2023]
Abstract
The importance of water cannot be overstated. It is the most important natural resource for our survival and development. The development of suitable materials for efficient water purification will provide a critical contribution for sustainable water use. In this context, a gel-emulsion-templated synthesis of a polymeric aerogel has been developed for water treatment. Owing to its hydrophobic nature, the aerogel shows high sorption (nearly 20 times its weight) for organic liquids, such as toluene, phenol, and nitrobenzene, and can be used to remove them from water. The aerogel shows low thermal conductivity (0.032 W m-1 K-1 ) and excellent light absorption efficiency (>92 %) after carbonization, which provides the possibility for the construction of an interfacial solar vapor generation system. The as-prepared materials are used to develop a two-step approach to remove both organic and inorganic contaminants (salts) from water. Importantly, the aerogel shows excellent reusability and high efficiency both for oil sorption and for solar vapor generation. Moreover, the low cost and easy scale-up of the preparation process lay a solid foundation for practical application. It is anticipated that the prepared aerogels would contribute not only to water purification but also to other related areas.
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Affiliation(s)
- Jianfei Liu
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P.R. China
| | - Hui Yang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P.R. China
| | - Kaiqiang Liu
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P.R. China
| | - Rong Miao
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P.R. China
| | - Yu Fang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P.R. China
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14
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Fan X, Zerebecki S, Du R, Hübner R, Marzum G, Jiang G, Hu Y, Barcikowki S, Reichenberger S, Eychmüller A. Promoting the Electrocatalytic Performance of Noble Metal Aerogels by Ligand‐Directed Modulation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913079] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Xuelin Fan
- Physical Chemistry Technische Universität Dresden Bergstr. 66b 01069 Dresden Germany
| | - Swen Zerebecki
- Technical Chemistry and Center for Nanointegration Duisburg-Essen University of Duisburg-Essen 47057 Duisburg Germany
| | - Ran Du
- Physical Chemistry Technische Universität Dresden Bergstr. 66b 01069 Dresden Germany
| | - René Hübner
- Helmholtz-Zentrum Dresden-Rossendorf Institute of Ion Beam Physics and Materials Research Bautzner Landstrasse 400 01328 Dresden Germany
| | - Galina Marzum
- Technical Chemistry and Center for Nanointegration Duisburg-Essen University of Duisburg-Essen 47057 Duisburg Germany
| | - Guocan Jiang
- Physical Chemistry Technische Universität Dresden Bergstr. 66b 01069 Dresden Germany
| | - Yue Hu
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325000 China
| | - Stephan Barcikowki
- Technical Chemistry and Center for Nanointegration Duisburg-Essen University of Duisburg-Essen 47057 Duisburg Germany
| | - Sven Reichenberger
- Technical Chemistry and Center for Nanointegration Duisburg-Essen University of Duisburg-Essen 47057 Duisburg Germany
| | - Alexander Eychmüller
- Physical Chemistry Technische Universität Dresden Bergstr. 66b 01069 Dresden Germany
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15
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Fan X, Zerebecki S, Du R, Hübner R, Marzum G, Jiang G, Hu Y, Barcikowki S, Reichenberger S, Eychmüller A. Promoting the Electrocatalytic Performance of Noble Metal Aerogels by Ligand-Directed Modulation. Angew Chem Int Ed Engl 2020; 59:5706-5711. [PMID: 31990450 PMCID: PMC7154742 DOI: 10.1002/anie.201913079] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Indexed: 12/11/2022]
Abstract
Noble metal aerogels (NMAs) are an emerging class of porous materials. Embracing nano-sized highly-active noble metals and porous structures, they display unprecedented performance in diverse electrocatalytic processes. However, various impurities, particularly organic ligands, are often involved in the synthesis and remain in the corresponding products, hindering the investigation of the intrinsic electrocatalytic properties of NMAs. Here, starting from laser-generated inorganic-salt-stabilized metal nanoparticles, various impurity-free NMAs (Au, Pd, and Au-Pd aerogels) were fabricated. In this light, we demonstrate not only the intrinsic electrocatalytic properties of NMAs, but also the prominent roles played by ligands in tuning electrocatalysis through modulating the electron density of catalysts. These findings may offer a new dimension to engineer and optimize the electrocatalytic performance for various NMAs and beyond.
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Affiliation(s)
- Xuelin Fan
- Physical Chemistry, Technische Universität Dresden, Bergstr. 66b, 01069, Dresden, Germany
| | - Swen Zerebecki
- Technical Chemistry and Center for Nanointegration Duisburg-Essen, University of Duisburg-Essen, 47057, Duisburg, Germany
| | - Ran Du
- Physical Chemistry, Technische Universität Dresden, Bergstr. 66b, 01069, Dresden, Germany
| | - René Hübner
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328, Dresden, Germany
| | - Galina Marzum
- Technical Chemistry and Center for Nanointegration Duisburg-Essen, University of Duisburg-Essen, 47057, Duisburg, Germany
| | - Guocan Jiang
- Physical Chemistry, Technische Universität Dresden, Bergstr. 66b, 01069, Dresden, Germany
| | - Yue Hu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325000, China
| | - Stephan Barcikowki
- Technical Chemistry and Center for Nanointegration Duisburg-Essen, University of Duisburg-Essen, 47057, Duisburg, Germany
| | - Sven Reichenberger
- Technical Chemistry and Center for Nanointegration Duisburg-Essen, University of Duisburg-Essen, 47057, Duisburg, Germany
| | - Alexander Eychmüller
- Physical Chemistry, Technische Universität Dresden, Bergstr. 66b, 01069, Dresden, Germany
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16
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Ficanha AMM, Antunes A, Oro CED, Valduga AT, Matuella Moreira C, Dallago RM, Mignoni M. Study of Drying Conditions of the Aerogel Obtained by the Sol-Gel Technique for Immobilization In Situ of Lipase Candida antarctica B. Ind Biotechnol (New Rochelle N Y) 2019. [DOI: 10.1089/ind.2019.0003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Affiliation(s)
| | - Angela Antunes
- Department of Food and Chemical Engineering, URI – Erechim, Erechim, Rio Grande do Sul, Brazil
| | | | - Alice Teresa Valduga
- Department of Food and Chemical Engineering, URI – Erechim, Erechim, Rio Grande do Sul, Brazil
| | - Cícero Matuella Moreira
- Department of Food and Chemical Engineering, URI – Erechim, Erechim, Rio Grande do Sul, Brazil
| | - Rogério Marcos Dallago
- Department of Food and Chemical Engineering, URI – Erechim, Erechim, Rio Grande do Sul, Brazil
| | - Marcelo Mignoni
- Department of Food and Chemical Engineering, URI – Erechim, Erechim, Rio Grande do Sul, Brazil
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17
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Wang L, Sánchez‐Soto M, Fan J, Xia Z, Liu Y. Boron/nitrogen flame retardant additives cross‐linked cellulose nanofibril/montmorillonite aerogels toward super‐low flammability and improved mechanical properties. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4613] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Liang Wang
- School of Textiles, Key Laboratory of Advanced Textiles Composites of Ministry of EducationTianjin Polytechnic University Tianjin China
| | - Miguel Sánchez‐Soto
- Centre Catalá del PlásticUniversitat Politécnica de Catalunya, Barcelona Tech. Terrassa Spain
| | - Jie Fan
- School of Textiles, Key Laboratory of Advanced Textiles Composites of Ministry of EducationTianjin Polytechnic University Tianjin China
| | - Zhao‐Peng Xia
- School of Textiles, Key Laboratory of Advanced Textiles Composites of Ministry of EducationTianjin Polytechnic University Tianjin China
| | - Yong Liu
- School of Textiles, Key Laboratory of Advanced Textiles Composites of Ministry of EducationTianjin Polytechnic University Tianjin China
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18
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Patil SP. Nanoindentation of Graphene-Reinforced Silica Aerogel: A Molecular Dynamics Study. Molecules 2019; 24:E1336. [PMID: 30987400 PMCID: PMC6480658 DOI: 10.3390/molecules24071336] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 03/21/2019] [Accepted: 04/01/2019] [Indexed: 11/18/2022] Open
Abstract
In the present work, we performed nanoindentation tests using molecular dynamics (MD) simulations on graphene, native silica aerogels, and single- and multi-layered graphene-reinforced silica aerogel nanocomposites. This work mainly focused on the two aspects of nanoindentation simulations: first, the resultant indentation force-depth curves, and second, the associated mechanical deformation behavior. We found that in the single-layer graphene-reinforced silica aerogel nanocomposite, the indentation resistance was four-fold that of native silica aerogels. Moreover, the combined system proved to be higher in stiffness compared to the individual material. Furthermore, the indentation resistance was increased significantly as we proceeded from single- to two-layered graphene-reinforced silica aerogel nanocomposites. The results of the study provide a detailed understanding of the mechanical behavior during the indentation tests of nanocomposites, which helps to design advanced nanoscale multi-layered materials.
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Affiliation(s)
- Sandeep P Patil
- Institute of General Mechanics, RWTH Aachen University, Templergraben 64, 52062 Aachen, Germany.
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19
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Jin R. Understanding Silica from the Viewpoint of Asymmetry. Chemistry 2019; 25:6270-6283. [DOI: 10.1002/chem.201805053] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Ren‐Hua Jin
- Department of Material and Life ChemistryKanagawa University 3-2-7 Rokkakubashi Yokohama 221-8686 Japan
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20
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Li J, Zuo K, Wu W, Xu Z, Yi Y, Jing Y, Dai H, Fang G. Shape memory aerogels from nanocellulose and polyethyleneimine as a novel adsorbent for removal of Cu(II) and Pb(II). Carbohydr Polym 2018; 196:376-384. [DOI: 10.1016/j.carbpol.2018.05.015] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 04/16/2018] [Accepted: 05/04/2018] [Indexed: 10/16/2022]
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21
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Zu G, Kanamori K, Maeno A, Kaji H, Nakanishi K. Superflexible Multifunctional Polyvinylpolydimethylsiloxane‐Based Aerogels as Efficient Absorbents, Thermal Superinsulators, and Strain Sensors. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804559] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Guoqing Zu
- Department of Chemistry Graduate School of Science Kyoto University, Kitashirakawa Sakyo-ku Kyoto 606-8502 Japan
| | - Kazuyoshi Kanamori
- Department of Chemistry Graduate School of Science Kyoto University, Kitashirakawa Sakyo-ku Kyoto 606-8502 Japan
| | - Ayaka Maeno
- Institute for Chemical Research Kyoto University Gokasho, Uji Kyoto 611-0011 Japan
| | - Hironori Kaji
- Institute for Chemical Research Kyoto University Gokasho, Uji Kyoto 611-0011 Japan
| | - Kazuki Nakanishi
- Department of Chemistry Graduate School of Science Kyoto University, Kitashirakawa Sakyo-ku Kyoto 606-8502 Japan
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22
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Zu G, Kanamori K, Maeno A, Kaji H, Nakanishi K. Superflexible Multifunctional Polyvinylpolydimethylsiloxane-Based Aerogels as Efficient Absorbents, Thermal Superinsulators, and Strain Sensors. Angew Chem Int Ed Engl 2018; 57:9722-9727. [PMID: 29957853 DOI: 10.1002/anie.201804559] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Indexed: 11/05/2022]
Abstract
Aerogels are porous materials but show poor mechanical properties and limited functionality, which significantly restrict their practical applications. Preparation of highly bendable and processable aerogels with multifunctionality remains a challenge. Herein we report unprecedented superflexible aerogels based on polyvinylpolydimethylsiloxane (PVPDMS) networks, PVPDMS/polyvinylpolymethylsiloxane (PVPMS) copolymer networks, and PVPDMS/PVPMS/graphene nanocomposites by a facile radical polymerization/hydrolytic polycondensation strategy and ambient pressure drying or freeze drying. The aerogels have a doubly cross-linked organic-inorganic network structure consisting of flexible polydimethylsiloxanes and hydrocarbon chains with tunable cross-linking density, tunable pore size and bulk density. They have a high hydrophobicity and superflexibility and combine selective absorption, efficient separation of oil and water, thermal superinsulation, and strain sensing.
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Affiliation(s)
- Guoqing Zu
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Kazuyoshi Kanamori
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Ayaka Maeno
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Hironori Kaji
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Kazuki Nakanishi
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo-ku, Kyoto, 606-8502, Japan
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23
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Affiliation(s)
- Ankit Malik
- Nano Surface Texturing Lab, Department of Materials Engineering, DIAT(DU), Ministry of Defence, Girinagar, Pune, India
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24
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Zhao S, Malfait WJ, Guerrero-Alburquerque N, Koebel MM, Nyström G. Biopolymer-Aerogele und -Schäume: Chemie, Eigenschaften und Anwendungen. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201709014] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shanyu Zhao
- Building Energy Materials & Components; Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa); Überlandstrasse 129 CH-8600 Dübendorf Schweiz
| | - Wim J. Malfait
- Building Energy Materials & Components; Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa); Überlandstrasse 129 CH-8600 Dübendorf Schweiz
| | - Natalia Guerrero-Alburquerque
- Building Energy Materials & Components; Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa); Überlandstrasse 129 CH-8600 Dübendorf Schweiz
| | - Matthias M. Koebel
- Building Energy Materials & Components; Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa); Überlandstrasse 129 CH-8600 Dübendorf Schweiz
| | - Gustav Nyström
- Angewandte Holzforschung; Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa); Überlandstrasse 129 CH-8600 Dübendorf Schweiz
- Departement Gesundheitswissenschaften und Technologie; ETH Zürich; Schmelzbergstrasse 9 CH-8092 Zürich Schweiz
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25
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Zhao S, Malfait WJ, Guerrero-Alburquerque N, Koebel MM, Nyström G. Biopolymer Aerogels and Foams: Chemistry, Properties, and Applications. Angew Chem Int Ed Engl 2018; 57:7580-7608. [DOI: 10.1002/anie.201709014] [Citation(s) in RCA: 336] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Shanyu Zhao
- Building Energy Materials & Components Laboratory; Swiss Federal Laboratories for Materials Science and Technology (Empa); Überlandstrasse 129 CH-8600 Dübendorf Switzerland
| | - Wim J. Malfait
- Building Energy Materials & Components Laboratory; Swiss Federal Laboratories for Materials Science and Technology (Empa); Überlandstrasse 129 CH-8600 Dübendorf Switzerland
| | - Natalia Guerrero-Alburquerque
- Building Energy Materials & Components Laboratory; Swiss Federal Laboratories for Materials Science and Technology (Empa); Überlandstrasse 129 CH-8600 Dübendorf Switzerland
| | - Matthias M. Koebel
- Building Energy Materials & Components Laboratory; Swiss Federal Laboratories for Materials Science and Technology (Empa); Überlandstrasse 129 CH-8600 Dübendorf Switzerland
| | - Gustav Nyström
- Applied Wood Materials Laboratory; Swiss Federal Laboratories for Materials Science and Technology (Empa); Überlandstrasse 129 CH-8600 Dübendorf Switzerland
- Department of Health Science and Technology; ETH Zurich; Schmelzbergstrasse 9 CH-8092 Zürich Switzerland
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26
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Kehrle J, Purkait TK, Kaiser S, Raftopoulos KN, Winnacker M, Ludwig T, Aghajamali M, Hanzlik M, Rodewald K, Helbich T, Papadakis CM, Veinot JGC, Rieger B. Superhydrophobic Silicon Nanocrystal-Silica Aerogel Hybrid Materials: Synthesis, Properties, and Sensing Application. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:4888-4896. [PMID: 29606005 DOI: 10.1021/acs.langmuir.7b03746] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Silicon nanocrystals (SiNCs) are abundant and exhibit exquisitely tailorable optoelectronic properties. The incorporation of SiNCs into highly porous and lightweight substrates such as aerogels leads to hybrid materials possessing the attractive features of both materials. This study describes the covalent deposition of SiNCs on and intercalation into silica aerogels, explores the properties, and demonstrates a prototype sensing application of the composite material. SiNCs of different sizes were functionalized with triethoxyvinylsilane (TEVS) via a radical grafting approach and subsequently used for the synthesis of photoluminescent silica hybrids. The resulting SiNC-containing aerogels possess high porosities, SiNC-based size-dependent photoluminescence, transparency, and a superhydrophobic macroscopic surface. The materials were used to examine the photoluminescence response toward low concentrations of 3-nitrotoluene (270 μM), demonstrating their potential as a sensing platform for high-energy materials.
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Affiliation(s)
| | - Tapas K Purkait
- Department of Chemistry , Johns Hopkins University , Baltimore , Maryland 21218 , United States
| | | | - Konstantinos N Raftopoulos
- Physik Weicher Materie , Technische Universität München , James-Frank-Str. 1 , 85748 Garching bei München , Germany
| | | | | | - Maryam Aghajamali
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | | | | | | | - Christine M Papadakis
- Physik Weicher Materie , Technische Universität München , James-Frank-Str. 1 , 85748 Garching bei München , Germany
| | - Jonathan G C Veinot
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
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27
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Ehgartner CR, Grandl S, Feinle A, Hüsing N. Flexible organofunctional aerogels. Dalton Trans 2018; 46:8809-8817. [PMID: 28352868 DOI: 10.1039/c7dt00558j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Flexible inorganic-organic silica aerogels based on methyltrimethoxysilane (MTMS, CH3Si(OCH3)3) can overcome the drawbacks of conventional silica aerogels by introducing high mechanical strength, elastic recovery and hydrophobicity to monolithic materials. In this work, MTMS is co-condensed with organofunctional alkoxysilanes RSi(OMe)3 (R = vinyl, chloropropyl, mercaptopropyl, methacryloxypropyl, etc.) yielding aerogels that are not only flexible but also contain reactive functional groups. Sol-gel parameters, such as the MTMS/RSi(OMe)3 ratio, have been systematically investigated in terms of gelation behavior, complete/incomplete incorporation of the functional organic groups (confirmed by FTIR-ATR and Raman spectroscopy) and flexibility of the resulting gel. Sterically more demanding functional moieties lead to macroscopic phase separation; however, this problem was overcome by the employment of surfactants. Functional aerogels dried by supercritical extraction with carbon dioxide showed promising results in uniaxial compression tests and had an elastic recovery up to 60%. Furthermore, the accessibility of the functional groups was demonstrated by simple reactions, e.g. conversion of the chloro into azido groups via a nucleophilic substitution reaction with NaN3 followed by click reactions.
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Affiliation(s)
- C R Ehgartner
- Materials Chemistry, Paris Lodron University Salzburg, Jakob-Haringer Street 2A, 5020 Salzburg, Austria.
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28
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Jiang S, Agarwal S, Greiner A. Offenzellige Schwämme mit niedrigen Dichten als Funktionsmaterialien. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700684] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shaohua Jiang
- Makromolekulare Chemie II, Bayerisches Polymerinstitut; Universität Bayreuth; Universitätsstraße 30 95440 Bayreuth Deutschland
- College of Materials Science and Engineering; Nanjing Forestry University; Nanjing 210037 China
| | - Seema Agarwal
- Makromolekulare Chemie II, Bayerisches Polymerinstitut; Universität Bayreuth; Universitätsstraße 30 95440 Bayreuth Deutschland
| | - Andreas Greiner
- Makromolekulare Chemie II, Bayerisches Polymerinstitut; Universität Bayreuth; Universitätsstraße 30 95440 Bayreuth Deutschland
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29
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Abstract
Low-density macroporous sponges with densities less than 100 mg cm-3 are both a challenge and an opportunity for advanced chemistry and material science. The challenge lies in the precise preparation of the sponges with property combinations that lead to novel applications. Bottom-up and top-down chemical and engineering methods for the preparation of sponges are a major focus of this Review, with an emphasis on carbon and polymer materials. The light weight, sustainability, breathability, special wetting characteristics, large mass transfer, mechanical stability, and large pore volume are typical characteristics of sponges made of advanced materials and could lead to novel applications. Some selected sponge properties and potential applications are discussed.
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Affiliation(s)
- Shaohua Jiang
- Macromolecular Chemistry II, Department of Chemistry, Bavarian Polymer Institute, University of Bayreuth, Universitätsstrasse 30, 95440, Bayreuth, Germany.,College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Seema Agarwal
- Macromolecular Chemistry II, Department of Chemistry, Bavarian Polymer Institute, University of Bayreuth, Universitätsstrasse 30, 95440, Bayreuth, Germany
| | - Andreas Greiner
- Macromolecular Chemistry II, Department of Chemistry, Bavarian Polymer Institute, University of Bayreuth, Universitätsstrasse 30, 95440, Bayreuth, Germany
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30
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Ziegler C, Wolf A, Liu W, Herrmann AK, Gaponik N, Eychmüller A. Moderne Anorganische Aerogele. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611552] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Christoph Ziegler
- Physical Chemistry; Technische Universität Dresden; Bergstraße 66b 01062 Dresden Deutschland
- LUMINOUS! Center of Excellence for Semiconductor Lighting and Displays School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 639798 Singapur
| | - André Wolf
- Physical Chemistry; Technische Universität Dresden; Bergstraße 66b 01062 Dresden Deutschland
| | - Wei Liu
- Physical Chemistry; Technische Universität Dresden; Bergstraße 66b 01062 Dresden Deutschland
| | - Anne-Kristin Herrmann
- Physical Chemistry; Technische Universität Dresden; Bergstraße 66b 01062 Dresden Deutschland
| | - Nikolai Gaponik
- Physical Chemistry; Technische Universität Dresden; Bergstraße 66b 01062 Dresden Deutschland
| | - Alexander Eychmüller
- Physical Chemistry; Technische Universität Dresden; Bergstraße 66b 01062 Dresden Deutschland
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31
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Muslimov AR, Timin AS, Petrova AV, Epifanovskaya OS, Shakirova AI, Lepik KV, Gorshkov A, Il'inskaja EV, Vasin AV, Afanasyev BV, Fehse B, Sukhorukov GB. Mesenchymal Stem Cells Engineering: Microcapsules-Assisted Gene Transfection and Magnetic Cell Separation. ACS Biomater Sci Eng 2017; 3:2314-2324. [PMID: 33445290 DOI: 10.1021/acsbiomaterials.7b00482] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Stem cell engineering-the manipulation and functionalization of stem cells involving genetic modification-can significantly expand their applicability for cell therapy in humans. Toward this aim, reliable, standardized, and cost-effective methods for cell manipulation are required. Here we explore the potential of magnetic multilayer capsules to serve as a universal platform for nonviral gene transfer, stem cell magnetization, and magnetic cell separation to improve gene transfer efficiency. In particular, the following experiments were performed: (i) a study of the process of internalization of magnetic capsules into stem cells, including capsule co-localization with established markers of endo-lysosomal pathway; (ii) characterization and quantification of capsule uptake with confocal microscopy, electron microscopy, and flow cytometry; (iii) intracellular delivery of messenger RNA and separation of gene-modified cells by magnetic cell sorting (MACS); and (iv) analysis of the influence of capsules on cell proliferation potential. Importantly, based on the internalization of magnetic capsules, transfected cells became susceptible to external magnetic fields, which made it easy to enrich gene-modified cells using MACS (purity ∼95%), and also to influence their migration behavior. In summary, our results underline the high potential of magnetic capsules in stem cell functionalization, namely (i) to increase gene-transfer efficiency and (ii) to facilitate enrichment and targeting of transfected cells. Finally, we did not observe a negative impact of the capsules used on the proliferative capacity of stem cells, proving their high biocompatibility.
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Affiliation(s)
- Albert R Muslimov
- First Pavlov State Medical University of St. Petersburg, Lev Tolstoy str., 6/8, 197022 St. Petersburg, Russian Federation.,Research Institute of Influenza, Popova str., 15/17, 197376 Saint-Petersburg, Russian Federation.,RASA center in St. Petersburg, Peter The Great St. Petersburg Polytechnic University, Polytechnicheskaya, 29, 195251 St. Petersburg, Russian Federation
| | - Alexander S Timin
- First Pavlov State Medical University of St. Petersburg, Lev Tolstoy str., 6/8, 197022 St. Petersburg, Russian Federation.,RASA Center in Tomsk, Tomsk Polytechnic University, pros. Lenina, 30, 634050 Tomsk, Russian Federation
| | - Aleksandra V Petrova
- Research Institute of Influenza, Popova str., 15/17, 197376 Saint-Petersburg, Russian Federation.,Department of Molecular Biology, Peter The Great St. Petersburg Polytechnic University, Polytechnicheskaya, 29, 195251 St. Petersburg, Russian Federation
| | - Olga S Epifanovskaya
- First Pavlov State Medical University of St. Petersburg, Lev Tolstoy str., 6/8, 197022 St. Petersburg, Russian Federation
| | - Alena I Shakirova
- First Pavlov State Medical University of St. Petersburg, Lev Tolstoy str., 6/8, 197022 St. Petersburg, Russian Federation
| | - Kirill V Lepik
- First Pavlov State Medical University of St. Petersburg, Lev Tolstoy str., 6/8, 197022 St. Petersburg, Russian Federation.,RASA center in St. Petersburg, Peter The Great St. Petersburg Polytechnic University, Polytechnicheskaya, 29, 195251 St. Petersburg, Russian Federation
| | - Andrey Gorshkov
- Research Institute of Influenza, Popova str., 15/17, 197376 Saint-Petersburg, Russian Federation
| | - Eugenia V Il'inskaja
- Research Institute of Influenza, Popova str., 15/17, 197376 Saint-Petersburg, Russian Federation
| | - Andrey V Vasin
- Research Institute of Influenza, Popova str., 15/17, 197376 Saint-Petersburg, Russian Federation.,Department of Molecular Biology, Peter The Great St. Petersburg Polytechnic University, Polytechnicheskaya, 29, 195251 St. Petersburg, Russian Federation
| | - Boris V Afanasyev
- First Pavlov State Medical University of St. Petersburg, Lev Tolstoy str., 6/8, 197022 St. Petersburg, Russian Federation
| | - Boris Fehse
- Research Department Cell and Gene Therapy, Department of Stem Cell Transplantation, University Medical Center Hamburg-Eppendorf, 20246, Martinistraße 52, 20251 Hamburg, Germany
| | - Gleb B Sukhorukov
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, United Kingdom
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32
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Ziegler C, Wolf A, Liu W, Herrmann AK, Gaponik N, Eychmüller A. Modern Inorganic Aerogels. Angew Chem Int Ed Engl 2017; 56:13200-13221. [DOI: 10.1002/anie.201611552] [Citation(s) in RCA: 221] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Indexed: 12/17/2022]
Affiliation(s)
- Christoph Ziegler
- Physical Chemistry; Technische Universität Dresden; Bergstrasse 66b 01062 Dresden Germany
- Present address: LUMINOUS! Center of Excellence for Semiconductor Lighting and Displays School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 639798 Singapore
| | - André Wolf
- Physical Chemistry; Technische Universität Dresden; Bergstrasse 66b 01062 Dresden Germany
| | - Wei Liu
- Physical Chemistry; Technische Universität Dresden; Bergstrasse 66b 01062 Dresden Germany
| | - Anne-Kristin Herrmann
- Physical Chemistry; Technische Universität Dresden; Bergstrasse 66b 01062 Dresden Germany
| | - Nikolai Gaponik
- Physical Chemistry; Technische Universität Dresden; Bergstrasse 66b 01062 Dresden Germany
| | - Alexander Eychmüller
- Physical Chemistry; Technische Universität Dresden; Bergstrasse 66b 01062 Dresden Germany
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33
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Waghmare MA, Naushad M, Alothman ZA, Ubale AU, Pathan HM. Zirconium oxide films: deposition techniques and their applications in dye-sensitized solar cells. J Solid State Electrochem 2017. [DOI: 10.1007/s10008-017-3565-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Liquid metal technology of synthesis of AlOOH anisotropic nanostructured aerogel. NUCLEAR ENERGY AND TECHNOLOGY 2017. [DOI: 10.1016/j.nucet.2017.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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35
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Shimizu T, Kanamori K, Nakanishi K. Silicone-Based Organic-Inorganic Hybrid Aerogels and Xerogels. Chemistry 2017; 23:5176-5187. [DOI: 10.1002/chem.201603680] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Indexed: 12/21/2022]
Affiliation(s)
- Taiyo Shimizu
- Department of Chemistry; Graduate School of Science; Kyoto University, Kitashirakawa, Sakyo-ku; Kyoto 606-8502 Japan
| | - Kazuyoshi Kanamori
- Department of Chemistry; Graduate School of Science; Kyoto University, Kitashirakawa, Sakyo-ku; Kyoto 606-8502 Japan
| | - Kazuki Nakanishi
- Department of Chemistry; Graduate School of Science; Kyoto University, Kitashirakawa, Sakyo-ku; Kyoto 606-8502 Japan
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36
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Zhao X, Yuan L, Zhang ZQ, Wang YS, Yu Q, Li J. Synthetic Methodology for the Fabrication of Porous Porphyrin Materials with Metal–Organic–Polymer Aerogels. Inorg Chem 2016; 55:5287-96. [DOI: 10.1021/acs.inorgchem.6b00274] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Xin Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an, Shaanxi 710069, China
| | - Lin Yuan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an, Shaanxi 710069, China
- Xi’an Tieyi Binhe School, Xi’an, Shaanxi 710038, China
| | - Zeng-qi Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an, Shaanxi 710069, China
| | - Yong-song Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an, Shaanxi 710069, China
| | - Qiong Yu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an, Shaanxi 710069, China
| | - Jun Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an, Shaanxi 710069, China
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37
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Jung SM, Preston DJ, Jung HY, Deng Z, Wang EN, Kong J. Porous Cu Nanowire Aerosponges from One-Step Assembly and their Applications in Heat Dissipation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:1413-9. [PMID: 26635235 DOI: 10.1002/adma.201504774] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 10/30/2015] [Indexed: 05/22/2023]
Abstract
Highly porous metal nanowire aerosponges are produced by direct assembly of the Cu nanowire in situ during their synthesis. Such a method offers not only great simplicity, but also excellent properties such as extremely low densities, high electrical conductivities, and remarkable mechanical properties. Furthermore, these Cu aerosponges exhibit excellent wicking behavior, suggesting their potential for heat-exchange applications in heat pipes.
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Affiliation(s)
- Sung Mi Jung
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Daniel J Preston
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Hyun Young Jung
- Department of Energy Engineering, Gyeongnam National University of Science and Technology, Jinju, 52725, South Korea
| | - Zhengtao Deng
- College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu, 210093, P. R. China
| | - Evelyn N Wang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Jing Kong
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
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38
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Panzella L, Melone L, Pezzella A, Rossi B, Pastori N, Perfetti M, D'Errico G, Punta C, d'Ischia M. Surface-Functionalization of Nanostructured Cellulose Aerogels by Solid State Eumelanin Coating. Biomacromolecules 2016; 17:564-71. [PMID: 26734842 DOI: 10.1021/acs.biomac.5b01497] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Bioinspired aerogel functionalization by surface modification and coating is in high demand for biomedical and technological applications. In this paper, we report an expedient three-step entry to all-natural surface-functionalized nanostructured aerogels based on (a) TEMPO/NaClO promoted synthesis of cellulose nanofibers (TOCNF); (b) freeze-drying for aerogel preparation; and (c) surface coating with a eumelanin thin film by ammonia-induced solid state polymerization (AISSP) of 5,6-dihydroxyindole (DHI) or 5,6-dihydroxyindole-2-carboxylic acid (DHICA) previously deposited from an organic solution. Scanning electron microscopy showed uniform deposition of the dark eumelanin coating on the template surface without affecting porosity, whereas solid state (13)C NMR and electron paramagnetic resonance (EPR) spectroscopy confirmed the eumelanin-type character of the coatings. DHI melanin coating was found to confer to TOCNF templates a potent antioxidant activity, as tested by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) assays as well as strong dye adsorption capacity, as tested on methylene blue. The unprecedented combination of nanostructured cellulose and eumelanin thin films disclosed herein implements an original all-natural multifunctional aerogel biomaterial realized via an innovative coating methodology.
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Affiliation(s)
- Lucia Panzella
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S.Angelo , via Cintia 4, I-80126 Naples, Italy
| | - Lucio Melone
- Department of Chemistry, Materials, and Chemical Engineering "G. Natta", Politecnico di Milano , Via Mancinelli 7, I-20131 Milano, Italy.,INSTM, National Consortium of Materials Science and Technology, Local Unit Politecnico di Milano , Piazza Leonardo da Vinci 32, I-20133 Milan, Italy.,Università degli studi e-Campus, Via Isimbardi 10, I-22060 Novedrate, Como, Italy
| | - Alessandro Pezzella
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S.Angelo , via Cintia 4, I-80126 Naples, Italy
| | - Bianca Rossi
- Department of Chemistry, Materials, and Chemical Engineering "G. Natta", Politecnico di Milano , Via Mancinelli 7, I-20131 Milano, Italy.,INSTM, National Consortium of Materials Science and Technology, Local Unit Politecnico di Milano , Piazza Leonardo da Vinci 32, I-20133 Milan, Italy
| | - Nadia Pastori
- Department of Chemistry, Materials, and Chemical Engineering "G. Natta", Politecnico di Milano , Via Mancinelli 7, I-20131 Milano, Italy.,INSTM, National Consortium of Materials Science and Technology, Local Unit Politecnico di Milano , Piazza Leonardo da Vinci 32, I-20133 Milan, Italy
| | - Marco Perfetti
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S.Angelo , via Cintia 4, I-80126 Naples, Italy.,CSGI (Consorzio per lo Sviluppo dei Sistemi a Grande Interfase), Florence, Italy
| | - Gerardino D'Errico
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S.Angelo , via Cintia 4, I-80126 Naples, Italy.,CSGI (Consorzio per lo Sviluppo dei Sistemi a Grande Interfase), Florence, Italy
| | - Carlo Punta
- Department of Chemistry, Materials, and Chemical Engineering "G. Natta", Politecnico di Milano , Via Mancinelli 7, I-20131 Milano, Italy.,INSTM, National Consortium of Materials Science and Technology, Local Unit Politecnico di Milano , Piazza Leonardo da Vinci 32, I-20133 Milan, Italy
| | - Marco d'Ischia
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S.Angelo , via Cintia 4, I-80126 Naples, Italy
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39
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Schwan M, Rößler M, Milow B, Ratke L. From Fragile to Resilient Insulation: Synthesis and Characterization of Aramid-Honeycomb Reinforced Silica Aerogel Composite Materials. Gels 2015; 2:E1. [PMID: 30674133 PMCID: PMC6318652 DOI: 10.3390/gels2010001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 11/25/2015] [Accepted: 12/09/2015] [Indexed: 12/04/2022] Open
Abstract
The production of a new composite material embedding aramid honeycomb materials into nano-porous silica aerogels is studied. Our aim is to improve the poor mechanical strength of silica aerogels by aramid honeycombs without losing the amazing properties of the aerogels like little density and low thermal conductivity. The composite materials were prepared using two formulations of silica aerogels in combination with aramid honeycomb materials of different cell sizes. The silica aerogels are prepared using silicon alkoxides methyltrimethoxysilane and tetraethylorthosilicate as precursors in a two-step acid⁻base sol⁻gel process. Shortly in advance of the gelation point, the aramid honeycombs were fluted by the sol, gelation occurred and, after the aging process, the gel bodies were supercritically dried. The properties of the received composite materials are satisfying. Even the thermal conductivities and the densities are a bit higher than for pure aerogels. Most importantly, the mechanical strength is improved by a factor of 2.3 compared to aramid honeycomb materials and by a factor of 10 compared to the two silica aerogels themselves. The composite materials have a good prospective to be used as an impressive insulation material.
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Affiliation(s)
- Marina Schwan
- Institute of Materials Research, German Aerospace Center, Linder Hoehe, 51170 Cologne, Germany.
| | - Matthias Rößler
- Institute of Materials Research, German Aerospace Center, Linder Hoehe, 51170 Cologne, Germany.
| | - Barbara Milow
- Institute of Materials Research, German Aerospace Center, Linder Hoehe, 51170 Cologne, Germany.
| | - Lorenz Ratke
- Institute of Materials Research, German Aerospace Center, Linder Hoehe, 51170 Cologne, Germany.
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40
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Freytag A, Sánchez-Paradinas S, Naskar S, Wendt N, Colombo M, Pugliese G, Poppe J, Demirci C, Kretschmer I, Bahnemann DW, Behrens P, Bigall NC. Versatile Aerogel Fabrication by Freezing and Subsequent Freeze-Drying of Colloidal Nanoparticle Solutions. Angew Chem Int Ed Engl 2015; 55:1200-3. [DOI: 10.1002/anie.201508972] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 10/26/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Axel Freytag
- Institut für Physikalische Chemie und Elektrochemie; Leibniz Universität Hannover; Callinstrasse 3A 30167 Hannover Deutschland
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
| | - Sara Sánchez-Paradinas
- Institut für Physikalische Chemie und Elektrochemie; Leibniz Universität Hannover; Callinstrasse 3A 30167 Hannover Deutschland
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
| | - Suraj Naskar
- Institut für Physikalische Chemie und Elektrochemie; Leibniz Universität Hannover; Callinstrasse 3A 30167 Hannover Deutschland
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
| | - Natalja Wendt
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
- Institut für Anorganische Chemie; Leibniz Universität Hannover; Callinstrasse 9 30167 Hannover Deutschland
| | - Massimo Colombo
- Nanochemistry Department; Istituto Italiano di Tecnologia; Via Morego, 30 16163 Genova Italien
| | | | - Jan Poppe
- Institut für Physikalische Chemie und Elektrochemie; Leibniz Universität Hannover; Callinstrasse 3A 30167 Hannover Deutschland
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
| | - Cansunur Demirci
- Institut für Physikalische Chemie und Elektrochemie; Leibniz Universität Hannover; Callinstrasse 3A 30167 Hannover Deutschland
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
| | - Imme Kretschmer
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
- Institut für Technische Chemie; Leibniz Universität Hannover; Callinstrasse 3 30167 Hannover Deutschland
| | - Detlef W. Bahnemann
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
- Institut für Technische Chemie; Leibniz Universität Hannover; Callinstrasse 3 30167 Hannover Deutschland
- Laboratory for Nanocomposite Materials, Department of Photonics, Faculty of Physics; Saint-Petersburg State University; Ulianovskaia street 3, Peterhof 198504 Saint Petersburg Russland
| | - Peter Behrens
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
- Institut für Anorganische Chemie; Leibniz Universität Hannover; Callinstrasse 9 30167 Hannover Deutschland
| | - Nadja C. Bigall
- Institut für Physikalische Chemie und Elektrochemie; Leibniz Universität Hannover; Callinstrasse 3A 30167 Hannover Deutschland
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
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41
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Freytag A, Sánchez-Paradinas S, Naskar S, Wendt N, Colombo M, Pugliese G, Poppe J, Demirci C, Kretschmer I, Bahnemann DW, Behrens P, Bigall NC. Universelle Methode zur Herstellung von Aerogelen aus kolloidalen Nanopartikellösungen durch Einfrieren und anschließendes Gefriertrocknen. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508972] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Axel Freytag
- Institut für Physikalische Chemie und Elektrochemie; Leibniz Universität Hannover; Callinstraße 3A 30167 Hannover Deutschland
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
| | - Sara Sánchez-Paradinas
- Institut für Physikalische Chemie und Elektrochemie; Leibniz Universität Hannover; Callinstraße 3A 30167 Hannover Deutschland
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
| | - Suraj Naskar
- Institut für Physikalische Chemie und Elektrochemie; Leibniz Universität Hannover; Callinstraße 3A 30167 Hannover Deutschland
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
| | - Natalja Wendt
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
- Institut für Anorganische Chemie; Leibniz Universität Hannover; Callinstraße 9 30167 Hannover Deutschland
| | - Massimo Colombo
- Nanochemistry Department; Istituto Italiano di Tecnologia; Via Morego, 30 16163 Genova Italien
| | | | - Jan Poppe
- Institut für Physikalische Chemie und Elektrochemie; Leibniz Universität Hannover; Callinstraße 3A 30167 Hannover Deutschland
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
| | - Cansunur Demirci
- Institut für Physikalische Chemie und Elektrochemie; Leibniz Universität Hannover; Callinstraße 3A 30167 Hannover Deutschland
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
| | - Imme Kretschmer
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
- Institut für Technische Chemie; Leibniz Universität Hannover; Callinstraße 3 30167 Hannover Deutschland
| | - Detlef W. Bahnemann
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
- Institut für Technische Chemie; Leibniz Universität Hannover; Callinstraße 3 30167 Hannover Deutschland
- Laboratory for Nanocomposite Materials, Department of Photonics, Faculty of Physics; Saint-Petersburg State University; Ulianovskaia street 3, Peterhof 198504 Saint Petersburg Russland
| | - Peter Behrens
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
- Institut für Anorganische Chemie; Leibniz Universität Hannover; Callinstraße 9 30167 Hannover Deutschland
| | - Nadja C. Bigall
- Institut für Physikalische Chemie und Elektrochemie; Leibniz Universität Hannover; Callinstraße 3A 30167 Hannover Deutschland
- Laboratorium für Nano- und Quantenengineering (LNQE); Leibniz Universität Hannover; Schneiderberg 39 30167 Hannover Deutschland
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42
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Sánchez-Paradinas S, Dorfs D, Friebe S, Freytag A, Wolf A, Bigall NC. Aerogels from CdSe/CdS Nanorods with Ultra-long Exciton Lifetimes and High Fluorescence Quantum Yields. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:6152-6. [PMID: 26332446 DOI: 10.1002/adma.201502078] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 07/27/2015] [Indexed: 05/27/2023]
Abstract
Hydrogels are fabricated from CdSe/CdS seeded nanorod building blocks by the addition of hydrogen peroxide and converted to aerogels by supercritical drying. The aerogels show higher photoluminescence quantum yields and longer lifetimes than the hydrogels and the nanoparticle solutions. A model for this observation is derived.
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Affiliation(s)
- Sara Sánchez-Paradinas
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstr. 3A, D-30167, Hannover, Germany
| | - Dirk Dorfs
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstr. 3A, D-30167, Hannover, Germany
| | - Sebastian Friebe
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstr. 3A, D-30167, Hannover, Germany
| | - Axel Freytag
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstr. 3A, D-30167, Hannover, Germany
| | - Andreas Wolf
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstr. 3A, D-30167, Hannover, Germany
| | - Nadja C Bigall
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstr. 3A, D-30167, Hannover, Germany
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43
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Zhao S, Malfait WJ, Demilecamps A, Zhang Y, Brunner S, Huber L, Tingaut P, Rigacci A, Budtova T, Koebel MM. Strong, Thermally Superinsulating Biopolymer–Silica Aerogel Hybrids by Cogelation of Silicic Acid with Pectin. Angew Chem Int Ed Engl 2015; 54:14282-6. [DOI: 10.1002/anie.201507328] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Shanyu Zhao
- Building Energy Materials & Components Lab, EMPA, Swiss Federal Laboratories for Materials Science and Technology, CH‐8600 Dübendorf (Switzerland)
| | - Wim J. Malfait
- Building Energy Materials & Components Lab, EMPA, Swiss Federal Laboratories for Materials Science and Technology, CH‐8600 Dübendorf (Switzerland)
| | - Arnaud Demilecamps
- MINES ParisTech, PSL Research University, CEMEF ‐ Centre de Mise en Forme des Matériaux, UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis (France)
| | - Yucheng Zhang
- Electron Microscopy Center, EMPA, Swiss Federal Laboratories for Materials Science and Technology, CH‐8600 Dübendorf (Switzerland)
| | - Samuel Brunner
- Building Energy Materials & Components Lab, EMPA, Swiss Federal Laboratories for Materials Science and Technology, CH‐8600 Dübendorf (Switzerland)
| | - Lukas Huber
- Building Energy Materials & Components Lab, EMPA, Swiss Federal Laboratories for Materials Science and Technology, CH‐8600 Dübendorf (Switzerland)
| | - Philippe Tingaut
- Wood Laboratory, EMPA, Swiss Federal Laboratories for Materials Science and Technology, CH‐8600 Dübendorf (Switzerland)
| | - Arnaud Rigacci
- MINES ParisTech, PERSEE ‐ Centre Procédés, Energies Renouvelables et Systèmes Energétiques, CS 10207, rue Claude Daunesse, 06904 Sophia Antipolis Cedex (France)
| | - Tatiana Budtova
- MINES ParisTech, PSL Research University, CEMEF ‐ Centre de Mise en Forme des Matériaux, UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis (France)
| | - Matthias M. Koebel
- Building Energy Materials & Components Lab, EMPA, Swiss Federal Laboratories for Materials Science and Technology, CH‐8600 Dübendorf (Switzerland)
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44
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Zhao S, Malfait WJ, Demilecamps A, Zhang Y, Brunner S, Huber L, Tingaut P, Rigacci A, Budtova T, Koebel MM. Strong, Thermally Superinsulating Biopolymer-Silica Aerogel Hybrids by Cogelation of Silicic Acid with Pectin. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201507328] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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45
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Cai B, Wen D, Liu W, Herrmann A, Benad A, Eychmüller A. Function‐Led Design of Aerogels: Self‐Assembly of Alloyed PdNi Hollow Nanospheres for Efficient Electrocatalysis. Angew Chem Int Ed Engl 2015; 54:13101-5. [DOI: 10.1002/anie.201505307] [Citation(s) in RCA: 148] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 07/10/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Bin Cai
- Physikalische Chemie, TU Dresden, Bergstrasse 66b, 01062 Dresden (Germany) http://www.chm.tu‐dresden.de/pc2/
| | - Dan Wen
- Physikalische Chemie, TU Dresden, Bergstrasse 66b, 01062 Dresden (Germany) http://www.chm.tu‐dresden.de/pc2/
| | - Wei Liu
- Physikalische Chemie, TU Dresden, Bergstrasse 66b, 01062 Dresden (Germany) http://www.chm.tu‐dresden.de/pc2/
| | - Anne‐Kristin Herrmann
- Physikalische Chemie, TU Dresden, Bergstrasse 66b, 01062 Dresden (Germany) http://www.chm.tu‐dresden.de/pc2/
| | - Albrecht Benad
- Physikalische Chemie, TU Dresden, Bergstrasse 66b, 01062 Dresden (Germany) http://www.chm.tu‐dresden.de/pc2/
| | - Alexander Eychmüller
- Physikalische Chemie, TU Dresden, Bergstrasse 66b, 01062 Dresden (Germany) http://www.chm.tu‐dresden.de/pc2/
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46
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Cai B, Wen D, Liu W, Herrmann AK, Benad A, Eychmüller A. Funktionsorientiertes Design von Aerogelen: Selbstanordnung von legierten PdNi-Hohlnanosphären als effiziente Elektrokatalysatoren. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505307] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Schachtschneider A, Wessig M, Spitzbarth M, Donner A, Fischer C, Drescher M, Polarz S. Directional Materials-Nanoporous Organosilica Monoliths with Multiple Gradients Prepared Using Click Chemistry. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502878] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Schachtschneider A, Wessig M, Spitzbarth M, Donner A, Fischer C, Drescher M, Polarz S. Directional Materials-Nanoporous Organosilica Monoliths with Multiple Gradients Prepared Using Click Chemistry. Angew Chem Int Ed Engl 2015; 54:10465-9. [DOI: 10.1002/anie.201502878] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Indexed: 01/31/2023]
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Bai J, Li Y, Xiang J, Ren L, Mao M, Zeng M, Zhao X. Preparation of the Monolith of Hierarchical Macro-/Mesoporous Calcium Silicate Ultrathin Nanosheets with Low Thermal Conductivity by Means of Ambient-Pressure Drying. Chem Asian J 2015; 10:1394-401. [DOI: 10.1002/asia.201500198] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Jilin Bai
- State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; 122 Luoshi Road Wuhan 430070 P.R. China
| | - Yuanzhi Li
- State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; 122 Luoshi Road Wuhan 430070 P.R. China
| | - Jiwei Xiang
- State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; 122 Luoshi Road Wuhan 430070 P.R. China
| | - Lu Ren
- State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; 122 Luoshi Road Wuhan 430070 P.R. China
| | - Mingyang Mao
- State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; 122 Luoshi Road Wuhan 430070 P.R. China
| | - Min Zeng
- State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; 122 Luoshi Road Wuhan 430070 P.R. China
| | - Xiujian Zhao
- State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; 122 Luoshi Road Wuhan 430070 P.R. China
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Wang X, Lu LL, Yu ZL, Xu XW, Zheng YR, Yu SH. Scalable Template Synthesis of Resorcinol-Formaldehyde/Graphene Oxide Composite Aerogels with Tunable Densities and Mechanical Properties. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201410668] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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