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Ding M, Zhao D, Wei R, Duan Z, Zhao Y, Li Z, Lin T, Li C. Multifunctional elastomeric composites based on 3D graphene porous materials. EXPLORATION (BEIJING, CHINA) 2024; 4:20230057. [PMID: 38855621 PMCID: PMC11022621 DOI: 10.1002/exp.20230057] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 09/25/2023] [Indexed: 06/11/2024]
Abstract
3D graphene porous materials (3GPM), which have low density, large porosity, excellent compressibility, high conductivity, hold huge promise for a wide range of applications. Nevertheless, most 3GPM have brittle and weak network structures, which limits their widespread use. Therefore, the preparation of a robust and elastic graphene porous network is critical for the functionalization of 3GPM. Herein, the recent research of 3GPM with excellent mechanical properties are summarized and the focus is on the effect factors that affect the mechanical properties of 3GPM. Moreover, the applications of elastic 3GPM in various fields, such as adsorption, energy storage, solar steam generation, sensors, flexible electronics, and electromagnetic wave shielding are comprehensively reviewed. At last, the new challenges and perspective for fabrication and functionalization of robust and elastic 3GPM are outlined. It is expected that the perspective will inspire more new ideas in preparation and functionalization of 3GPM.
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Affiliation(s)
- Meichun Ding
- School of Chemistry and Pharmaceutical EngineeringShandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
- Medical Science and Technology Innovation CenterShandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Demin Zhao
- School of Chemistry and Pharmaceutical EngineeringShandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
- Medical Science and Technology Innovation CenterShandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Rui Wei
- School of Chemistry and Pharmaceutical EngineeringShandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
- Medical Science and Technology Innovation CenterShandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Zhenying Duan
- School of Chemistry and Pharmaceutical EngineeringShandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
- Medical Science and Technology Innovation CenterShandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Yuxi Zhao
- Medical Science and Technology Innovation CenterShandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
- Aix Marseille Univ, CNRSInstitut de Chimie Radicalaire (ICR)MarseilleFrance
| | - Zeyang Li
- School of The Queen's University of Belfast Joint CollegeChina Medical UniversityShenyangChina
| | - Tianhao Lin
- School of Chemistry and Pharmaceutical EngineeringShandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
- Medical Science and Technology Innovation CenterShandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Chenwei Li
- School of Chemistry and Pharmaceutical EngineeringShandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
- Medical Science and Technology Innovation CenterShandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
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2
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Wu Y, An C, Guo Y, Zong Y, Jiang N, Zheng Q, Yu ZZ. Highly Aligned Graphene Aerogels for Multifunctional Composites. NANO-MICRO LETTERS 2024; 16:118. [PMID: 38361077 PMCID: PMC10869679 DOI: 10.1007/s40820-024-01357-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 01/03/2024] [Indexed: 02/17/2024]
Abstract
Stemming from the unique in-plane honeycomb lattice structure and the sp2 hybridized carbon atoms bonded by exceptionally strong carbon-carbon bonds, graphene exhibits remarkable anisotropic electrical, mechanical, and thermal properties. To maximize the utilization of graphene's in-plane properties, pre-constructed and aligned structures, such as oriented aerogels, films, and fibers, have been designed. The unique combination of aligned structure, high surface area, excellent electrical conductivity, mechanical stability, thermal conductivity, and porous nature of highly aligned graphene aerogels allows for tailored and enhanced performance in specific directions, enabling advancements in diverse fields. This review provides a comprehensive overview of recent advances in highly aligned graphene aerogels and their composites. It highlights the fabrication methods of aligned graphene aerogels and the optimization of alignment which can be estimated both qualitatively and quantitatively. The oriented scaffolds endow graphene aerogels and their composites with anisotropic properties, showing enhanced electrical, mechanical, and thermal properties along the alignment at the sacrifice of the perpendicular direction. This review showcases remarkable properties and applications of aligned graphene aerogels and their composites, such as their suitability for electronics, environmental applications, thermal management, and energy storage. Challenges and potential opportunities are proposed to offer new insights into prospects of this material.
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Affiliation(s)
- Ying Wu
- Beijing Advanced Innovation Center for Materials Genome Engineering, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China.
- Institute of Materials Intelligent Technology, Liaoning Academy of Materials, Shenyang, 110004, People's Republic of China.
| | - Chao An
- Beijing Advanced Innovation Center for Materials Genome Engineering, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
- Institute of Materials Intelligent Technology, Liaoning Academy of Materials, Shenyang, 110004, People's Republic of China
| | - Yaru Guo
- Beijing Advanced Innovation Center for Materials Genome Engineering, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
- Institute of Materials Intelligent Technology, Liaoning Academy of Materials, Shenyang, 110004, People's Republic of China
| | - Yangyang Zong
- Beijing Advanced Innovation Center for Materials Genome Engineering, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
- Institute of Materials Intelligent Technology, Liaoning Academy of Materials, Shenyang, 110004, People's Republic of China
| | - Naisheng Jiang
- Beijing Advanced Innovation Center for Materials Genome Engineering, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
- Institute of Materials Intelligent Technology, Liaoning Academy of Materials, Shenyang, 110004, People's Republic of China
| | - Qingbin Zheng
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Shenzhen, Guangdong, 518172, People's Republic of China.
| | - Zhong-Zhen Yu
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
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Wang W, Zhao X, Ye L. Self-Assembled Construction of Robust and Super Elastic Graphene Aerogel for High-Efficient Formaldehyde Removal and Multifunctional Application. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300234. [PMID: 36919815 DOI: 10.1002/smll.202300234] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/09/2023] [Indexed: 06/15/2023]
Abstract
Simultaneously achieving exceptional mechanical strength and resilience of graphene aerogel (GA) remains a challenge, while GA is an ideal candidate for formaldehyde removal. Herein, flexible polyethyleneimine (PEI) is grafted chemically onto carbon nanotube (CNT) surface, and CNT-PEI@reduced GA (rGA) is fabricated via hydrothermal self-assembly, pre-frozen, and hydrazine reduction process. Introducing CNT-PEI contributes to well-interconnected/robust 3D network construction by connecting reduced graphene oxide (rGO) nanosheets through enhancing cross-linking, while entangled CNT-PEI is intercalated into rGO layers to avoid serious restacking of sheets, producing larger surface area and more formaldehyde adsorption sites. Ultralight CNT-PEI@rGA exhibits extreme high strength (276.37 kPa), reversible compressibility at 90% strain, and structural stability, while FA adsorption capacity reached 568.41 mg g-1 , ≈3.28 times of rGA, derivable from synergistic chemical-physical adsorption effect. Furthermore, CNT-PEI@rGA is ground into powder for first preparing polyoxymethylene (POM)/CNT-PEI@rGA composite, while formaldehyde emission amount is 69.63%/73.96% lower than that of POM at 60/230 °C. Moreover, CNT-PEI@rGA presents outstanding piezoresistive-sensing and thermal insulation properties, exhibiting high strain sensitivity, wide strain detection range, and long-term durability.
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Affiliation(s)
- Wuyou Wang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, P. R. China
| | - Xiaowen Zhao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, P. R. China
| | - Lin Ye
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, P. R. China
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4
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Qi P, Zhu H, Borodich F, Peng Q. A Review of the Mechanical Properties of Graphene Aerogel Materials: Experimental Measurements and Computer Simulations. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1800. [PMID: 36902915 PMCID: PMC10004370 DOI: 10.3390/ma16051800] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 02/01/2023] [Accepted: 02/20/2023] [Indexed: 06/15/2023]
Abstract
Graphene aerogels (GAs) combine the unique properties of two-dimensional graphene with the structural characteristics of microscale porous materials, exhibiting ultralight, ultra-strength, and ultra-tough properties. GAs are a type of promising carbon-based metamaterials suitable for harsh environments in aerospace, military, and energy-related fields. However, there are still some challenges in the application of graphene aerogel (GA) materials, which requires an in-depth understanding of the mechanical properties of GAs and the associated enhancement mechanisms. This review first presents experimental research works related to the mechanical properties of GAs in recent years and identifies the key parameters that dominate the mechanical properties of GAs in different situations. Then, simulation works on the mechanical properties of GAs are reviewed, the deformation mechanisms are discussed, and the advantages and limitations are summarized. Finally, an outlook on the potential directions and main challenges is provided for future studies in the mechanical properties of GA materials.
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Affiliation(s)
- Penghao Qi
- School of Engineering, Cardiff University, Cardiff CF24 3AA, UK
| | - Hanxing Zhu
- School of Engineering, Cardiff University, Cardiff CF24 3AA, UK
| | - Feodor Borodich
- College of Aerospace Engineering, Chongqing University, Chongqing 400044, China
| | - Qing Peng
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
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Ding M, Lu H, Sun Y, He Y, Yu J, Kong H, Shao C, Liu C, Li C. Superelastic 3D Assembled Clay/Graphene Aerogels for Continuous Solar Desalination and Oil/Organic Solvent Absorption. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2205202. [PMID: 36354171 PMCID: PMC9798983 DOI: 10.1002/advs.202205202] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/12/2022] [Indexed: 05/19/2023]
Abstract
Superelastic, arbitrary-shaped, and 3D assembled clay/graphene aerogels (CGAs) are fabricated using commercial foam as sacrificial skeleton. The CGAs possess superelasticity under compressive strain of 95% and compressive stress of 0.09-0.23 MPa. The use of clay as skeletal support significantly reduces the use of graphene by 50%. The hydrophobic CGAs show high solvent absorption capacity of 186-519 times its own weight. Moreover, both the compression and combustion methods can be adopted for reusing the CGAs. In particular, it is demonstrated a design of 3D assembled hydrophilic CGA equipped with salt collection system for continuous solar desalination. Due to energy recovery and brine transport management promoted by this design, the 3D assembled CGA system exhibits an extremely high evaporation rate of 4.11 kg m-2 h-1 and excellent salt-resistant property without salt precipitation even in 20 wt% brine for continuous 36 h illumination (1 kW m-2 ), which is the best reported result from the solar desalination devices. More importantly, salts can be collected conveniently by squeezing and drying the solution out of the salt collection system. The work provides new insights into the design of 3D assembled CGAs and advances their applications in continuous solar desalination and efficient oil/organic solvent adsorption.
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Affiliation(s)
- Meichun Ding
- School of Chemistry and Pharmaceutical EngineeringShandong First Medical University & Shandong Academy of Medical SciencesTaian271000China
- Medical Science and Technology Innovation CenterShandong First Medical University & Shandong Academy of Medical SciencesJinanShandong250117China
| | - Hao Lu
- CAS Key Laboratory of Engineering PlasticsCAS Research/Education Center for Excellence in Molecular SciencesInstitute of Chemistrythe Chinese Academy of SciencesBeijing100190China
| | - Yongbin Sun
- School of Chemistry and Pharmaceutical EngineeringShandong First Medical University & Shandong Academy of Medical SciencesTaian271000China
| | - Yujian He
- College of Materials Science and EngineeringQingdao UniversityQingdao266071China
| | - Jiahui Yu
- Medical Science and Technology Innovation CenterShandong First Medical University & Shandong Academy of Medical SciencesJinanShandong250117China
| | - Huijun Kong
- School of Chemistry and Pharmaceutical EngineeringShandong First Medical University & Shandong Academy of Medical SciencesTaian271000China
- Medical Science and Technology Innovation CenterShandong First Medical University & Shandong Academy of Medical SciencesJinanShandong250117China
| | - Changxiang Shao
- School of Chemistry and Pharmaceutical EngineeringShandong First Medical University & Shandong Academy of Medical SciencesTaian271000China
- Medical Science and Technology Innovation CenterShandong First Medical University & Shandong Academy of Medical SciencesJinanShandong250117China
| | - Chen‐Yang Liu
- CAS Key Laboratory of Engineering PlasticsCAS Research/Education Center for Excellence in Molecular SciencesInstitute of Chemistrythe Chinese Academy of SciencesBeijing100190China
| | - Chenwei Li
- School of Chemistry and Pharmaceutical EngineeringShandong First Medical University & Shandong Academy of Medical SciencesTaian271000China
- Medical Science and Technology Innovation CenterShandong First Medical University & Shandong Academy of Medical SciencesJinanShandong250117China
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TRANSFORMATION OF TPU ELASTOMERS INTO TPU FOAMS USING SUPERCRITICAL CO2. A NEW REPROCESSING APPROACH. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2022.105806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Xia Y, Gao C, Gao W. A review on elastic graphene aerogels: Design, preparation, and applications. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yuxing Xia
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Chao Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Weiwei Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
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8
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Tie J, Mao Z, Zhang L, Zhong Y, Sui X, Xu H. High strength and anti‐freezing piezoresistive pressure sensor based on a composite gel. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5700] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Jianfei Tie
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology Donghua University Shanghai China
| | - Zhiping Mao
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology Donghua University Shanghai China
- National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology Taian Shandong China
| | - Linping Zhang
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology Donghua University Shanghai China
| | - Yi Zhong
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology Donghua University Shanghai China
| | - Xiaofeng Sui
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology Donghua University Shanghai China
| | - Hong Xu
- Key Lab of Science and Technology of Eco‐textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology Donghua University Shanghai China
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9
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Ding M, Li C. Recent Advances in Simple Preparation of 3D Graphene Aerogels Based on 2D Graphene Materials. Front Chem 2022; 10:815463. [PMID: 35155367 PMCID: PMC8825482 DOI: 10.3389/fchem.2022.815463] [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: 11/15/2021] [Accepted: 01/03/2022] [Indexed: 12/02/2022] Open
Abstract
Recently, 3D graphene aerogels (3GAs) with high electrical conductivity, excellent mechanical properties, and fast mass and electron transport have attracted increasing attention and shown wide applications (such as flexible electronics devices, sensors, absorbents, catalysis, energy storage devices, solar steam generation devices, and so on). The drying process becomes an important factor limiting the large-scale preparation of 3GAs. Therefore, how to simplify the preparation process plays an important role in the large-scale application of 3GAs. In this study, we summarize the recent progresses of 3GAs by different drying methods and focus on the effect of robust graphene network on the simple preparation of 3GAs. Besides, the design and synthesis strategies of 3GAs with robust graphene network structures have been systematically discussed. Finally, the emerging challenges and prospective for developing simple preparation and functionalization of 3GAs were outlined. It is expected that our study will lay a foundation for large-scale preparation and application of 3GAs and inspire more new ideas in this field.
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Affiliation(s)
- Meichun Ding
- School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
- Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Chenwei Li
- School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
- Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
- *Correspondence: Chenwei Li,
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10
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Ye J, Liu L, Oakdale J, Lefebvre J, Bhowmick S, Voisin T, Roehling JD, Smith WL, Cerón MR, van Ham J, Bayu Aji LB, Biener MM, Wang YM, Onck PR, Biener J. Ultra-low-density digitally architected carbon with a strutted tube-in-tube structure. NATURE MATERIALS 2021; 20:1498-1505. [PMID: 34697430 DOI: 10.1038/s41563-021-01125-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 09/08/2021] [Indexed: 06/13/2023]
Abstract
Porous materials with engineered stretching-dominated lattice designs, which offer attractive mechanical properties with ultra-light weight and large surface area for wide-ranging applications, have recently achieved near-ideal linear scaling between stiffness and density. Here, rather than optimizing the microlattice topology, we explore a different approach to strengthen low-density structural materials by designing tube-in-tube beam structures. We develop a process to transform fully dense, three-dimensional printed polymeric beams into graphitic carbon hollow tube-in-tube sandwich morphologies, where, similar to grass stems, the inner and outer tubes are connected through a network of struts. Compression tests and computational modelling show that this change in beam morphology dramatically slows down the decrease in stiffness with decreasing density. In situ pillar compression experiments further demonstrate large deformation recovery after 30-50% compression and high specific damping merit index. Our strutted tube-in-tube design opens up the space and realizes highly desirable high modulus-low density and high modulus-high damping material structures.
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Affiliation(s)
- Jianchao Ye
- Materials Science Division, Physics and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA.
| | - Ling Liu
- Micromechanics of Materials, Zernike Institute for Advanced Materials, University of Groningen, Groningen, Netherlands
| | - James Oakdale
- Materials Science Division, Physics and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | | | | | - Thomas Voisin
- Materials Science Division, Physics and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - John D Roehling
- Materials Science Division, Physics and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - William L Smith
- Materials Engineering Division, Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Maira R Cerón
- Materials Science Division, Physics and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Jip van Ham
- Micromechanics of Materials, Zernike Institute for Advanced Materials, University of Groningen, Groningen, Netherlands
| | - Leonardus Bimo Bayu Aji
- Materials Science Division, Physics and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Monika M Biener
- Materials Science Division, Physics and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Y Morris Wang
- Materials Science Division, Physics and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, USA
| | - Patrick R Onck
- Micromechanics of Materials, Zernike Institute for Advanced Materials, University of Groningen, Groningen, Netherlands.
| | - Juergen Biener
- Materials Science Division, Physics and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA.
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11
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Zhang L, Feng L, Gu X, Zhang C. Additive‐free, robust and superelastic dual‐network graphene/melamine composite sponge for motion sensing. J Appl Polym Sci 2021. [DOI: 10.1002/app.50788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Linjiong Zhang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering Zhejiang University Hangzhou China
| | - Lianfang Feng
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering Zhejiang University Hangzhou China
- Institute of Zhejiang University‐Quzhou Quzhou China
| | - Xueping Gu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering Zhejiang University Hangzhou China
- Institute of Zhejiang University‐Quzhou Quzhou China
| | - Cailiang Zhang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering Zhejiang University Hangzhou China
- Institute of Zhejiang University‐Quzhou Quzhou China
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12
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Yang P, Tontini G, Wang J, Kinloch IA, Barg S. Ice-templated hybrid graphene oxide-graphene nanoplatelet lamellar architectures: tuning mechanical and electrical properties. NANOTECHNOLOGY 2021; 32:205601. [PMID: 33494085 DOI: 10.1088/1361-6528/abdf8f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The traditional freeze-casting route for processing graphene-based aerogels is generally restricted to aqueously dispersed flakes of graphene oxide (GO) and post-processing reduction treatments, which brings restrictions to the aerogels electrical properties. In this work, we report a versatile aqueous processing route that uses the ability of GO todisperse graphene nanoplatelets (GNP) to produce rGO-GNP lamellar aerogels via unidirectional freeze-casting. In order to optimise the properties of the aerogel, GO-GNP dispersions were partially reduced by L-ascorbic acid prior to freeze-casting to tune the carbon and oxygen (C/O) ratio. The aerogels were then heat treated after casting to fully reduce the GO. The chemical reduction time was found to control the microstructure of the resulting aeorgels and thus to tune their electrical and mechanical properties. An rGO-GNP lamellar aerogel with density of 20.8 ± 0.8 mg cm-3 reducing using a reduction of 60 min achieved an electrical conductivity of 42.3 S m-1. On the other hand, an optimal reduction time of 35 min led to an aerogel with compressive modulus of 0.51 ±0.06 MPa at a density of 23.2 ± 0.7 mg cm-3, revealing a compromise between the tuning of electrical and mechanical properties. We show the present processing route can also be easily applied to produce lamellar aerogels on other graphene-based materials such as electrochemically exfoliated graphene.
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Affiliation(s)
- Pei Yang
- Henry Royce Institute and Department of Materials, The University of Manchester, Oxford Rd, Manchester, M13 9PL, United Kingdom
- National Graphene Institute, The University of Manchester, M13 9PL, United Kingdom
| | - Gustavo Tontini
- Henry Royce Institute and Department of Materials, The University of Manchester, Oxford Rd, Manchester, M13 9PL, United Kingdom
| | - Jiacheng Wang
- Henry Royce Institute and Department of Materials, The University of Manchester, Oxford Rd, Manchester, M13 9PL, United Kingdom
- National Graphene Institute, The University of Manchester, M13 9PL, United Kingdom
| | - Ian A Kinloch
- Henry Royce Institute and Department of Materials, The University of Manchester, Oxford Rd, Manchester, M13 9PL, United Kingdom
- National Graphene Institute, The University of Manchester, M13 9PL, United Kingdom
| | - Suelen Barg
- Henry Royce Institute and Department of Materials, The University of Manchester, Oxford Rd, Manchester, M13 9PL, United Kingdom
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13
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Low cost, high performance ultrafiltration membranes from glass fiber-PTFE-graphene composites. Sci Rep 2020; 10:21123. [PMID: 33273591 PMCID: PMC7713439 DOI: 10.1038/s41598-020-78091-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 10/30/2020] [Indexed: 12/02/2022] Open
Abstract
The development of low-cost ultrafiltration membranes with relatively high flow rate and selectivity is an important goal which could improve access to clean water in the developing world. Here we demonstrate a method to infuse mixtures of graphene nanosheets and Teflon nanoparticles into ultra-cheap glass fibre membranes. Annealing the resultant composites leads to coalescence of the Teflon, resulting in very stable membranes with significantly enhanced mechanical properties. In filtration tests, while adding ~ 10 wt% graphene/Teflon to the glass fibre membrane decreased the flow rate by × 100, the selectivity improved by × 103 compared to the neat glass fibre membrane. This combination of selectively and flow rate was significantly better than any commercial membrane tested under similar circumstances. We found these membranes could remove > 99.99% of 25–250 nm diameter SiC nanoparticles dispersed in ethanol, transmitting only particles with diameters < 40 nm, performance which is superior to commercial alumina membranes. Field trials on dirty canal water showed these composite membranes to remove aluminium to a level × 10 below the EU limit for drinking water and reduce iron and bacteria contents to below detectable levels.
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14
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Sun Z, Fang S, Hu YH. 3D Graphene Materials: From Understanding to Design and Synthesis Control. Chem Rev 2020; 120:10336-10453. [PMID: 32852197 DOI: 10.1021/acs.chemrev.0c00083] [Citation(s) in RCA: 129] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Carbon materials, with their diverse allotropes, have played significant roles in our daily life and the development of material science. Following 0D C60 and 1D carbon nanotube, 2D graphene materials, with their distinctively fascinating properties, have been receiving tremendous attention since 2004. To fulfill the efficient utilization of 2D graphene sheets in applications such as energy storage and conversion, electrochemical catalysis, and environmental remediation, 3D structures constructed by graphene sheets have been attempted over the past decade, giving birth to a new generation of graphene materials called 3D graphene materials. This review starts with the definition, classifications, brief history, and basic synthesis chemistries of 3D graphene materials. Then a critical discussion on the design considerations of 3D graphene materials for diverse applications is provided. Subsequently, after emphasizing the importance of normalized property characterization for the 3D structures, approaches for 3D graphene material synthesis from three major types of carbon sources (GO, hydrocarbons and inorganic carbon compounds) based on GO chemistry, hydrocarbon chemistry, and new alkali-metal chemistry, respectively, are comprehensively reviewed with a focus on their synthesis mechanisms, controllable aspects, and scalability. At last, current challenges and future perspectives for the development of 3D graphene materials are addressed.
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Affiliation(s)
- Zhuxing Sun
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, Michigan 49931-1295, United States
| | - Siyuan Fang
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, Michigan 49931-1295, United States
| | - Yun Hang Hu
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, Michigan 49931-1295, United States.,School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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15
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Gao W, Wang M, Bai H. A review of multifunctional nacre-mimetic materials based on bidirectional freeze casting. J Mech Behav Biomed Mater 2020; 109:103820. [PMID: 32543396 DOI: 10.1016/j.jmbbm.2020.103820] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 03/03/2020] [Accepted: 04/20/2020] [Indexed: 12/13/2022]
Abstract
Nacre has achieved an excellent combination of strength and toughness through its unique brick-and-mortar structure of layered aragonite platelets bonded with biopolymers. Mimicking nacre has been considered as a practical way for the development of high-performance structural composites. Over the past years, many techniques have been developed to fabricate multifunctional nacre-mimetic materials, including freeze casting, layer-by-layer assembly, vacuum filtration, 3D printing and so on. Among them, freeze casting, especially bidirectional freeze casting, as an environmentally friendly and scalable method, has attracted extensive attention recently. In this review, we begin with the introduction and discussion of various fabrication techniques comparing their advantages and disadvantages, focusing on the most recent advances of the bidirectional freeze casting technique. Then, we summarize representative examples of applying the bidirectional freeze casting technique to assemble various building blocks into multifunctional nacre-mimetic materials and their wide applications. At the end, we discuss the future direction of using bidirectional freeze casting to make nacre-mimetic materials.
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Affiliation(s)
- Weiwei Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, China
| | - Mengning Wang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Hao Bai
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China.
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16
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Shao G, Hanaor DAH, Shen X, Gurlo A. Freeze Casting: From Low-Dimensional Building Blocks to Aligned Porous Structures-A Review of Novel Materials, Methods, and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907176. [PMID: 32163660 DOI: 10.1002/adma.201907176] [Citation(s) in RCA: 178] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/30/2019] [Indexed: 05/19/2023]
Abstract
Freeze casting, also known as ice templating, is a particularly versatile technique that has been applied extensively for the fabrication of well-controlled biomimetic porous materials based on ceramics, metals, polymers, biomacromolecules, and carbon nanomaterials, endowing them with novel properties and broadening their applicability. The principles of different directional freeze-casting processes are described and the relationships between processing and structure are examined. Recent progress in freeze-casting assisted assembly of low dimensional building blocks, including graphene and carbon nanotubes, into tailored micro- and macrostructures is then summarized. Emerging trends relating to novel materials as building blocks and novel freeze-cast geometries-beads, fibers, films, complex macrostructures, and nacre-mimetic composites-are presented. Thereafter, the means by which aligned porous structures and nacre mimetic materials obtainable through recently developed freeze-casting techniques and low-dimensional building blocks can facilitate material functionality across multiple fields of application, including energy storage and conversion, environmental remediation, thermal management, and smart materials, are discussed.
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Affiliation(s)
- Gaofeng Shao
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing, 210044, China
- Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Technische Universität Berlin, Hardenbergstr. 40, Berlin, 10623, Germany
| | - Dorian A H Hanaor
- Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Technische Universität Berlin, Hardenbergstr. 40, Berlin, 10623, Germany
| | - Xiaodong Shen
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Aleksander Gurlo
- Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Technische Universität Berlin, Hardenbergstr. 40, Berlin, 10623, Germany
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17
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Oh MJ, Yoo PJ. Graphene-based 3D lightweight cellular structures: Synthesis and applications. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-019-0437-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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18
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Yeo SJ, Oh MJ, Yoo PJ. Structurally Controlled Cellular Architectures for High-Performance Ultra-Lightweight Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1803670. [PMID: 30462862 DOI: 10.1002/adma.201803670] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 08/24/2018] [Indexed: 06/09/2023]
Abstract
The design and synthesis of cellular structured materials are of both scientific and technological importance since they can impart remarkably improved material properties such as low density, high mechanical strength, and adjustable surface functionality compared to their bulk counterparts. Although reducing the density of porous structures would generally result in reductions in mechanical properties, this challenge can be addressed by introducing a structural hierarchy and using mechanically reinforced constituent materials. Thus, precise control over several design factors in structuring, including the type of constituent, symmetry of architectures, and dimension of the unit cells, is extremely important for maximizing the targeted performance. The feasibility of lightweight materials for advanced applications is broadly explored due to recent advances in synthetic approaches for different types of cellular architectures. Here, an overview of the development of lightweight cellular materials according to the structural interconnectivity and randomness of the internal pores is provided. Starting from a fundamental study on how material density is associated with mechanical performance, the resulting structural and mechanical properties of cellular materials are investigated for potential applications such as energy/mass absorption and electrical and thermal management. Finally, current challenges and perspectives on high-performance ultra-lightweight materials potentially implementable by well-controlled cellular architectures are discussed.
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Affiliation(s)
- Seon Ju Yeo
- Nanophotonics Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Min Jun Oh
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Pil J Yoo
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
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19
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Electrochemical stability and capacitance of in-situ synthesized Prussian blue on thermally-activated graphite. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0713-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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20
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Zhao K, Zhang T, Chang H, Yang Y, Xiao P, Zhang H, Li C, Tiwary CS, Ajayan PM, Chen Y. Super-elasticity of three-dimensionally cross-linked graphene materials all the way to deep cryogenic temperatures. SCIENCE ADVANCES 2019; 5:eaav2589. [PMID: 30993202 PMCID: PMC6461457 DOI: 10.1126/sciadv.aav2589] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 02/21/2019] [Indexed: 05/14/2023]
Abstract
Until now, materials with high elasticity at deep cryogenic temperatures have not been observed. Previous reports indicated that graphene and carbon nanotube-based porous materials can exhibit reversible mechano-elastic behavior from liquid nitrogen temperature up to nearly a thousand degrees Celsius. Here, we report wide temperature-invariant large-strain super-elastic behavior in three-dimensionally cross-linked graphene materials that persists even to a liquid helium temperature of 4 K, a property not previously observed for any other material. To understand the mechanical properties of these graphene materials, we show by in situ experiments and modeling results that these remarkable properties are the synergetic results of the unique architecture and intrinsic elastic/flexibility properties of individual graphene sheets and the covalent junctions between the sheets that persist even at harsh temperatures. These results suggest possible applications for such materials at extremely low temperature environments such as those in outer space.
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Affiliation(s)
- Kai Zhao
- Center for Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Tengfei Zhang
- Center for Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Huicong Chang
- Center for Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Yang Yang
- Center for Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Peishuang Xiao
- Center for Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Hongtao Zhang
- Center for Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Chenxi Li
- Center for Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Chandra Sekhar Tiwary
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX 77005, USA
| | - Pulickel M. Ajayan
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX 77005, USA
| | - Yongsheng Chen
- Center for Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
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21
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Effect of PEG-MEA and graphene oxide additives on the performance of Pebax®1657 mixed matrix membranes for CO2 separation. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2018.11.025] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Kashani H, Ito Y, Han J, Liu P, Chen M. Extraordinary tensile strength and ductility of scalable nanoporous graphene. SCIENCE ADVANCES 2019; 5:eaat6951. [PMID: 30793025 PMCID: PMC6377272 DOI: 10.1126/sciadv.aat6951] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Accepted: 01/04/2019] [Indexed: 05/25/2023]
Abstract
While the compressive strength-density scaling relationship of ultralight cellular graphene materials has been extensively investigated, high tensile strength and ductility have not been realized in the theoretically strongest carbon materials because of high flaw sensitivity under tension and weak van der Waals interplanar bonding between graphene sheets. In this study, we report that large-scale ultralight nanoporous graphene with three-dimensional bicontinuous nanoarchitecture shows orders of magnitude higher strength and elastic modulus than all reported ultralight carbon materials under both compression and tension. The high-strength nanoporous graphene also exhibits excellent tensile ductility and work hardening, which are comparable to well-designed metamaterials but until now had not been realized in ultralight cellular materials. The excellent mechanical properties of the nanoporous graphene benefit from seamless graphene sheets in the bicontinuous nanoporosity that effectively preserves the intrinsic strength of atomically thick graphene in the three-dimensional cellular nanoarchitecture.
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Affiliation(s)
- Hamzeh Kashani
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21214, USA
| | - Yoshikazu Ito
- Institute of Applied Physics, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8573, Japan
| | - Jiuhui Han
- Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - Pan Liu
- Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - Mingwei Chen
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21214, USA
- Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
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23
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Ma J, Wang P, Dong L, Ruan Y, Lu H. Highly conductive, mechanically strong graphene monolith assembled by three-dimensional printing of large graphene oxide. J Colloid Interface Sci 2019; 534:12-19. [PMID: 30196197 DOI: 10.1016/j.jcis.2018.08.096] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 08/25/2018] [Accepted: 08/27/2018] [Indexed: 10/28/2022]
Abstract
The manufacturing of three-dimensional (3D) graphene monolith with high mechanical and electrical performance has become an urgent issue in view of their potential applications in energy and electronics fields. Due to the structure rigidity and poor liquid-phase processing capability of graphene sheets, it is challenging to fabricate 3D graphene monolith with high mechanical performance, including strength, toughness and resiliency. Graphene oxide (GO) shows an improved dispersibility and reduction-restorable conductivity, which enables it to effectively balance the processing and comprehensive performances of graphene monolith. Here, we demonstrate a strategy to fabricate high-performance, shape-designable 3D graphene monolith through a 3D printing method based on large-sized graphene oxide (LGO) fluid ink. The concentration of the LGO ink for printing is as low as 20 mg/mL. The resulting monolith exhibits low density (12.8 mg/cm3), high electrical conductivity (41.1 S/m), high specific strength (10.7 × 103 N·m/Kg) and compressibility (up to 80% compressive strain). Such a 3D printing technique enables plenty of complicated monolith structures and broadens the application range of graphene.
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Affiliation(s)
- Jianhua Ma
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Collaborative Innovation Center of Polymers and Polymer Composites, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Peng Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Collaborative Innovation Center of Polymers and Polymer Composites, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Lei Dong
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Collaborative Innovation Center of Polymers and Polymer Composites, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Yingbo Ruan
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Collaborative Innovation Center of Polymers and Polymer Composites, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Hongbin Lu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Collaborative Innovation Center of Polymers and Polymer Composites, Fudan University, 2005 Songhu Road, Shanghai 200438, China.
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24
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Ultralight, hydrophobic, anisotropic bamboo-derived cellulose nanofibrils aerogels with excellent shape recovery via freeze-casting. Carbohydr Polym 2018; 208:232-240. [PMID: 30658796 DOI: 10.1016/j.carbpol.2018.12.073] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 12/18/2018] [Accepted: 12/21/2018] [Indexed: 12/24/2022]
Abstract
Cellulose aerogels have shown outstanding potential as renewable functional materials; however, their practical applications are still limited by inherent hydrophilicity and weak mechanical properties. To overcome hydrophilicity and fragility issues of aerogels, in this study, silylated bamboo-derived cellulose nanofibrils (CNF) aerogels with aligned porous structures were achieved by directionally freeze-casting a mixture of CNF suspension and methyltrimethoxysilane sol. The silylated CNF aerogels exhibited distinct aligned lamellar structures and significantly anisotropic mechanical properties. They had improved strength and stiffness in the axial direction (along the freezing direction) and excellent rapid shape recovery ability in the radial direction (perpendicular to the freezing direction) with a significant high shape recovery ratio of 92% after 100 cycles at 80% compression. Owing to their ultra-low density, hydrophobicity, and high compressive recoverability, the silylated CNF aerogels can be potentially used in a wide range of industrial applications, such as hydrophobic polymer nanocomposites, absorbents, and biomedical scaffolds.
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Yeo SJ, Oh MJ, Jun HM, Lee M, Bae JG, Kim Y, Park KJ, Lee S, Lee D, Weon BM, Lee WB, Kwon SJ, Yoo PJ. A Plesiohedral Cellular Network of Graphene Bubbles for Ultralight, Strong, and Superelastic Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1802997. [PMID: 30156738 DOI: 10.1002/adma.201802997] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 07/16/2018] [Indexed: 05/16/2023]
Abstract
Advanced materials with low density and high strength impose transformative impacts in the construction, aerospace, and automobile industries. These materials can be realized by assembling well-designed modular building units (BUs) into interconnected structures. This study uses a hierarchical design strategy to demonstrate a new class of carbon-based, ultralight, strong, and even superelastic closed-cellular network structures. Here, the BUs are prepared by a multiscale design approach starting from the controlled synthesis of functionalized graphene oxide nanosheets at the molecular- and nanoscale, leading to the microfluidic fabrication of spherical solid-shelled bubbles at the microscale. Then, bubbles are strategically assembled into centimeter-scale 3D structures. Subsequently, these structures are transformed into self-interconnected and structurally reinforced closed-cellular network structures with plesiohedral cellular units through post-treatment, resulting in the generation of 3D graphene lattices with rhombic dodecahedral honeycomb structure at the centimeter-scale. The 3D graphene suprastructure concurrently exhibits the Young's modulus above 300 kPa while retaining a light density of 7.7 mg cm-3 and sustaining the elasticity against up to 87% of the compressive strain benefiting from efficient stress dissipation through the complete space-filling closed-cellular network. The method of fabricating the 3D graphene closed-cellular structure opens a new pathway for designing lightweight, strong, and superelastic materials.
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Affiliation(s)
- Seon Ju Yeo
- Nanophotonics Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Min Jun Oh
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Hyun Min Jun
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Minhwan Lee
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jung Gun Bae
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Yeseul Kim
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Kyung Jin Park
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Seungwoo Lee
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Daeyeon Lee
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Byung Mook Weon
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Won Bo Lee
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Seok Joon Kwon
- Nanophotonics Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Pil J Yoo
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
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Li C, Ding M, Zhang B, Qiao X, Liu CY. Graphene aerogels that withstand extreme compressive stress and strain. NANOSCALE 2018; 10:18291-18299. [PMID: 30246840 DOI: 10.1039/c8nr04824j] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Graphene aerogels combining elastic, lightweight, and robust mechanical properties have been explored for a wide variety of applications. However, graphene aerogels are generally subject to brittle mechanical properties and the irreversible damage of network structures during extreme compressions. Thus, the challenge of finding ways to enhance the strength and resilience of graphene aerogels remains. Herein, superelastic and ultralight aerogels are fabricated through a thermal-treatment of 3D ordered graphene aerogels. The treatments at 400-1000 °C eliminate most of the oxygen-containing functional groups and enhance the π-π stacking interactions between graphene sheets, forming a well-ordered structure of graphene sheets in cell walls. The aerogels can withstand a loading of 100 000 N (109 times their own weight) for 60 min and retain their substantial elastic resilience. This loading corresponds to an ultimate compressive stress of approximately 1000 MPa and a strain of 99.8%, and this ultimate stress is 1-2 orders of magnitude higher than the values for other (carbon-based, polymer-based, inorganic-based, and metal-based) porous materials. The superelastic properties can be attributed to the graphite-like ordered structure of cell walls. The successful fabrication of such superelastic materials opens a new avenue to explore their potential applications in pressure sensors, mechanical shock absorbers, soft robots, and deformable electronic devices.
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Affiliation(s)
- Chenwei Li
- CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, the Chinese Academy of Sciences, Beijing 100190, China.
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27
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Oh JH, Kim J, Lee H, Kang Y, Oh IK. Directionally Antagonistic Graphene Oxide-Polyurethane Hybrid Aerogel as a Sound Absorber. ACS APPLIED MATERIALS & INTERFACES 2018; 10:22650-22660. [PMID: 29883082 DOI: 10.1021/acsami.8b06361] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Innovative sound absorbers, the design of which is based on carbon nanotubes and graphene derivatives, could be used to make more efficient sound absorbing materials because of their excellent intrinsic mechanical and chemical properties. However, controlling the directional alignments of low-dimensional carbon nanomaterials, such as restacking, alignment, and dispersion, has been a challenging problem when developing sound absorbing forms. Herein, we present the directionally antagonistic graphene oxide-polyurethane hybrid aerogel we developed as a sound absorber, the physical properties of which differ according to the alignment of the microscopic graphene oxide sheets. This porous graphene sound absorber has a microporous hierarchical cellular structure with adjustable stiffness and improved sound absorption performance, thereby overcoming the restrictions of both geometric and function-orientated functions. Furthermore, by controlling the inner cell size and aligned structure of graphene oxide layers in this study, we achieved remarkable improvement of the sound absorption performance at low frequency. This improvement is attributed to multiple scattering of incident and reflection waves on the aligned porous surfaces, and air-viscous resistance damping inside interconnected structures between the urethane foam and the graphene oxide network. Two anisotropic sound absorbers based on the directionally antagonistic graphene oxide-polyurethane hybrid aerogels were fabricated. They show remarkable differences owing to the opposite alignment of graphene oxide layers inside the polyurethane foam and are expected to be appropriate for the engineering design of sound absorbers in consideration of the wave direction.
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Affiliation(s)
- Jung-Hwan Oh
- Creative Research Initiative Center for Functionally Antagonistic Nano-Engineering and Graphene Research Center at KAIST Institute for the NanoCentury, Department of Mechanical Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Jieun Kim
- LG Chem, Ltd. , 30 Magokjungang 10-ro , Gangseo-gu, Seoul , Republic of Korea
| | - Hyeongrae Lee
- Institute of Advanced Machines and Design, Department of Mechanical and Aerospace Engineering , Seoul National University , Seoul 08826 , Republic of Korea
| | - Yeonjune Kang
- Institute of Advanced Machines and Design, Department of Mechanical and Aerospace Engineering , Seoul National University , Seoul 08826 , Republic of Korea
| | - Il-Kwon Oh
- Creative Research Initiative Center for Functionally Antagonistic Nano-Engineering and Graphene Research Center at KAIST Institute for the NanoCentury, Department of Mechanical Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
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Huang J, Wang J, Yang Z, Yang S. High-Performance Graphene Sponges Reinforced with Polyimide for Room-Temperature Piezoresistive Sensing. ACS APPLIED MATERIALS & INTERFACES 2018; 10:8180-8189. [PMID: 29417809 DOI: 10.1021/acsami.7b17018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The bulk materials of three-dimensional graphene (3DG) with high network structure and excellent electrical conductivity have many potential applications in flexible electronics, but the network structure is not very stable due to weak bonding between graphene nanosheets. Here, a polyimide (PI) layer was introduced on the as-prepared 3DG sponge by vacuum infiltration-curing method. The resulting 3DG/PI composite sponges with robust 3D network structure exhibited an excellent electrical conductivity (3.7 S/cm), compression strength (175 kPa), elasticity, and flexibility, as well as outstanding compression sensitivity to resistance and stable piezoresistance effect; namely, they possess a large change in resistance in response to application of small strain and low density, and the resistance change remains favorably stable after performing 300 compress-release cycles, which means that the prepared composite sponges can find wide applications in pressure-sensing or stimulus-responsive graphene system.
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Affiliation(s)
- Jingxia Huang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics , Chinese Academy of Sciences , Lanzhou 730000 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Jinqing Wang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics , Chinese Academy of Sciences , Lanzhou 730000 , P. R. China
| | - Zhigang Yang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics , Chinese Academy of Sciences , Lanzhou 730000 , P. R. China
| | - Shengrong Yang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics , Chinese Academy of Sciences , Lanzhou 730000 , P. R. China
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29
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Yang D, Zhao J, Shi J, Wang X, Zhang S, Jiang Z. Combination of Redox Assembly and Biomimetic Mineralization To Prepare Graphene-Based Composite Cellular Foams for Versatile Catalysis. ACS APPLIED MATERIALS & INTERFACES 2017; 9:43950-43958. [PMID: 29171256 DOI: 10.1021/acsami.7b11601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Graphene-based materials with hierarchical structures and multifunctionality have gained much interest in a variety of applications. Herein, we report a facile, yet universal approach to prepare graphene-based composite cellular foams (GCCFs) through combination of redox assembly and biomimetic mineralization enabled by cationic polymers. Specifically, cationic polymers (e.g., polyethyleneimine, lysozyme, etc.) could not only reduce and simultaneously assemble graphene oxide (GO) into cellular foams but also confer the cellular foams with mineralization-inducing capability, enabling the formation of inorganic nanoparticles (e.g., silica, titania, silver, etc.). The GCCFs show highly porous structure and appropriate structural stability, where nanoparticles are well distributed on the surface of the reduced GO. Through altering polymer/inorganic pairs, a series of GCCFs are synthesized, which exhibit much enhanced catalytic performance in enzyme catalysis, heterogeneous chemical catalysis, and photocatalysis compared to nanoparticulate catalysts.
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Affiliation(s)
| | | | - Jiafu Shi
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development , Guangzhou 510640, Guangdong, P. R. China
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30
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Rocha VG, García-Tuñón E, Botas C, Markoulidis F, Feilden E, D'Elia E, Ni N, Shaffer M, Saiz E. Multimaterial 3D Printing of Graphene-Based Electrodes for Electrochemical Energy Storage Using Thermoresponsive Inks. ACS APPLIED MATERIALS & INTERFACES 2017; 9:37136-37145. [PMID: 28920439 DOI: 10.1021/acsami.7b10285] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The current lifestyles, increasing population, and limited resources result in energy research being at the forefront of worldwide grand challenges, increasing the demand for sustainable and more efficient energy devices. In this context, additive manufacturing brings the possibility of making electrodes and electrical energy storage devices in any desired three-dimensional (3D) shape and dimensions, while preserving the multifunctional properties of the active materials in terms of surface area and conductivity. This paves the way to optimized and more efficient designs for energy devices. Here, we describe how three-dimensional (3D) printing will allow the fabrication of bespoke devices, with complex geometries, tailored to fit specific requirements and applications, by designing water-based thermoresponsive inks to 3D-print different materials in one step, for example, printing the active material precursor (reduced chemically modified graphene (rCMG)) and the current collector (copper) for supercapacitors or anodes for lithium-ion batteries. The formulation of thermoresponsive inks using Pluronic F127 provides an aqueous-based, robust, flexible, and easily upscalable approach. The devices are designed to provide low resistance interface, enhanced electrical properties, mechanical performance, packing of rCMG, and low active material density while facilitating the postprocessing of the multicomponent 3D-printed structures. The electrode materials are selected to match postprocessing conditions. The reduction of the active material (rCMG) and sintering of the current collector (Cu) take place simultaneously. The electrochemical performance of the rCMG-based self-standing binder-free electrode and the two materials coupled rCMG/Cu printed electrode prove the potential of multimaterial printing in energy applications.
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Affiliation(s)
- Victoria G Rocha
- School of Engineering, Cardiff University , Cardiff CF24 3AA, U.K
| | - Esther García-Tuñón
- School of Engineering & Materials Innovation Factory, University of Liverpool , Liverpool L69 3GH, U.K
| | - Cristina Botas
- CIC Energigune, Parque Tecnológico de Álava , Albert Einstein 48, 01510 Miñano, Álava, Spain
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31
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Qiu L, Huang B, He Z, Wang Y, Tian Z, Liu JZ, Wang K, Song J, Gengenbach TR, Li D. Extremely Low Density and Super-Compressible Graphene Cellular Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1701553. [PMID: 28731224 DOI: 10.1002/adma.201701553] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 05/05/2017] [Indexed: 06/07/2023]
Abstract
Development of extremely low density graphene elastomer (GE) holds the potential to enable new properties that traditional cellular materials cannot offer, which are promising for a range of emerging applications, ranging from flexible electronics to multifunctional scaffolds. However, existing graphene foams with extremely low density are generally found to have very poor mechanical resilience. It is scientifically intriguing but remains unresolved whether and how the density limit of this class of cellular materials can be further pushed down while their mechanical resilience is being retained. In this work, a simple annealing strategy is developed to investigate the role of intersheet interactions in the formation of extreme-low-density of graphene-based cellular materials. It is discovered that the density limit of mechanically resilient cellular GEs can be further pushed down as low as 0.16 mg cm-3 through thermal annealing. The resultant extremely low density GEs reveal a range of unprecedented properties, including complete recovery from 98% compression in both of liquid and air, ultrahigh solvent adsorption capacity, ultrahigh pressure sensitivity, and light transmittance.
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Affiliation(s)
- Ling Qiu
- Department of Materials Science and Engineering, Monash University, VIC, 3800, Australia
| | - Bing Huang
- Department of Materials Science and Engineering, Monash University, VIC, 3800, Australia
| | - Zijun He
- Department of Materials Science and Engineering, Monash University, VIC, 3800, Australia
| | - Yuanyuan Wang
- Department of Materials Science and Engineering, Monash University, VIC, 3800, Australia
| | - Zhiming Tian
- Department of Materials Science and Engineering, Monash University, VIC, 3800, Australia
| | - Jefferson Zhe Liu
- Department of Mechanical and Aerospace Engineering, Monash University, VIC, 3800, Australia
- Monash Centre for Atomically Thin Materials, Monash University, VIC, 3800, Australia
| | - Kun Wang
- Department of Chemical Engineering, Monash University, VIC, 3800, Australia
| | - Jingchao Song
- Department of Materials Science and Engineering, Monash University, VIC, 3800, Australia
| | | | - Dan Li
- Department of Materials Science and Engineering, Monash University, VIC, 3800, Australia
- Monash Centre for Atomically Thin Materials, Monash University, VIC, 3800, Australia
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32
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Zhao X, Yao W, Gao W, Chen H, Gao C. Wet-Spun Superelastic Graphene Aerogel Millispheres with Group Effect. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1701482. [PMID: 28714230 DOI: 10.1002/adma.201701482] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 05/30/2017] [Indexed: 06/07/2023]
Abstract
Graphene aerogel has attracted great attention due to its unique properties, such as ultralow density, superelasticity, and high specific surface area. It shows huge potential in energy devices, high-performance pressure sensors, contaminates adsorbents, and electromagnetic wave absorbing materials. However, there still remain some challenges to further promote the development and real application of graphene aerogel including cost-effective scalable fabrication and miniaturization with group effect. This study shows millimeter-scale superelastic graphene aerogel spheres (GSs) with group effect and multifunctionality. The GSs are continuously fabricated on a large scale by wet spinning of graphene oxide liquid crystals followed by facile drying and thermal annealing. Such GS has an unusual core-shell structure with excellent elasticity and specific strength. Significantly, both horizontally and vertically grouped spheres exhibit superelasticity comparable to individual spheres, enabling it to fully recover at 95% strain, and even after 1000 compressive cycles at 70% strain, paving the way to wide applications such as pressure-elastic and adsorbing materials. The GS shows a press-fly behavior with an extremely high jump velocity up to 1.2 m s-1 . For the first time, both free and oil-adsorbed GSs are remotely manipulated on water by electrostatic charge due to their ultralow density and hydrophobic properties.
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Affiliation(s)
- Xiaoli Zhao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Weiquan Yao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Weiwei Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Hao Chen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Chao Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
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33
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Shaina PR, Sakorikar T, Sarkar B, Kavitha MK, Vayalamkuzhi P, Jaiswal M. Anomalous charge transport in reduced graphene oxide films on a uniaxially strained elastic substrate. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:235301. [PMID: 28497770 DOI: 10.1088/1361-648x/aa6eba] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We investigate temperature-dependent charge transport in reduced graphene oxide (rGO) films coated on flexible polydimethylsiloxane (PDMS) substrates which are subject to uniaxial strain. Variable strain, up to 10%, results in an anisotropic morphology comprising of quasi-periodic linear array of deformations which are oriented perpendicular to the direction of strain. The anisotropy is reflected in the charge transport measurements, when conduction in the direction parallel and perpendicular to the applied strain are compared. Temperature dependence of resistance is measured for different values of strain in the temperature interval 80-300 K. While the resistance increases significantly upon application of strain, the temperature-dependent response shows anomalous decrease in resistance ratio R 80 K/R 300 K upon application of strain. This observation of favorable conduction processes under strain is further corroborated by reduced activation energy analysis of the temperature-dependent transport data. These anomalous transport features can be reconciled based on mutually competing effects of two processes: (i) thinning of graphene at the sites of periodic deformations, which tends to enhance the overall resistance by a purely geometrical effect, and (ii) locally enhanced inter-flake coupling in these same regions which contributes to improved temperature-dependent conduction.
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Affiliation(s)
- P R Shaina
- Department of Physics, Indian Institute of Technology Madras, Chennai 600036, India
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34
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Using graphene networks to build bioinspired self-monitoring ceramics. Nat Commun 2017; 8:14425. [PMID: 28181518 PMCID: PMC5309856 DOI: 10.1038/ncomms14425] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 12/20/2016] [Indexed: 11/09/2022] Open
Abstract
The properties of graphene open new opportunities for the fabrication of composites exhibiting unique structural and functional capabilities. However, to achieve this goal we should build materials with carefully designed architectures. Here, we describe the fabrication of ceramic-graphene composites by combining graphene foams with pre-ceramic polymers and spark plasma sintering. The result is a material containing an interconnected, microscopic network of very thin (20-30 nm), electrically conductive, carbon interfaces. This network generates electrical conductivities up to two orders of magnitude higher than those of other ceramics with similar graphene or carbon nanotube contents and can be used to monitor 'in situ' structural integrity. In addition, it directs crack propagation, promoting stable crack growth and increasing the fracture resistance by an order of magnitude. These results demonstrate that the rational integration of nanomaterials could be a fruitful path towards building composites combining unique mechanical and functional performances.
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35
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Gao W, Zhao N, Yao W, Xu Z, Bai H, Gao C. Effect of flake size on the mechanical properties of graphene aerogels prepared by freeze casting. RSC Adv 2017. [DOI: 10.1039/c7ra05557a] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Graphene flake size has a profound effect on the mechanical performance of the assembled graphene aerogels, particularly their strength, modulus and fatigue resistance under compression.
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Affiliation(s)
- Weiwei Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province
- Zhejiang University
- Hangzhou 310027
| | - Nifang Zhao
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Weiquan Yao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province
- Zhejiang University
- Hangzhou 310027
| | - Zhen Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province
- Zhejiang University
- Hangzhou 310027
| | - Hao Bai
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Chao Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province
- Zhejiang University
- Hangzhou 310027
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36
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Meng L, Liu H, Yu L, Khalid S, Chen L, Jiang T, Li Q. Elastomeric foam prepared by supercritical carbon dioxide. J Appl Polym Sci 2016. [DOI: 10.1002/app.44354] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Linghan Meng
- Centre for Polymer from Renewable Resources, SCUT; Guangzhou 510640 People's Republic of China
- Sino-Singapore International Joint Institute; Knowledge City Guangzhou 510663 China
| | - Hongsheng Liu
- Centre for Polymer from Renewable Resources, SCUT; Guangzhou 510640 People's Republic of China
| | - Long Yu
- Centre for Polymer from Renewable Resources, SCUT; Guangzhou 510640 People's Republic of China
- Sino-Singapore International Joint Institute; Knowledge City Guangzhou 510663 China
| | - Saud Khalid
- Centre for Polymer from Renewable Resources, SCUT; Guangzhou 510640 People's Republic of China
| | - Ling Chen
- Centre for Polymer from Renewable Resources, SCUT; Guangzhou 510640 People's Republic of China
| | - Tianyu Jiang
- Centre for Polymer from Renewable Resources, SCUT; Guangzhou 510640 People's Republic of China
| | - Qiaoling Li
- Centre for Polymer from Renewable Resources, SCUT; Guangzhou 510640 People's Republic of China
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37
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Li C, Qiu L, Zhang B, Li D, Liu CY. Robust Vacuum-/Air-Dried Graphene Aerogels and Fast Recoverable Shape-Memory Hybrid Foams. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:1510-1516. [PMID: 26643876 DOI: 10.1002/adma.201504317] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 11/07/2015] [Indexed: 06/05/2023]
Abstract
New graphene aerogels can be fabricated by vacuum/air drying, and because of the mechanical robustness of the graphene aerogels, shape-memory polymer/graphene hybrid foams can be fabricated by a simple infiltration-air-drying-crosslinking method. Due to the superelasticity, high strength, and good electrical conductivity of the as-prepared graphene aerogels, the shape-memory hybrid foams exhibit excellent thermotropical and electrical shape-memory properties, outperforming previously reported shape-memory polymer foams.
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Affiliation(s)
- Chenwei Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering, Plastics, Joint Laboratory of Polymer Science and Materials, Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100190, China
| | - Ling Qiu
- Department of Materials Science and Engineering, Monash University, VIC, 3800, Australia
| | - Baoqing Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering, Plastics, Joint Laboratory of Polymer Science and Materials, Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100190, China
| | - Dan Li
- Department of Materials Science and Engineering, Monash University, VIC, 3800, Australia
| | - Chen-Yang Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering, Plastics, Joint Laboratory of Polymer Science and Materials, Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100190, China
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38
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Lu H, Li C, Zhang B, Qiao X, Liu CY. Toward highly compressible graphene aerogels of enhanced mechanical performance with polymer. RSC Adv 2016. [DOI: 10.1039/c6ra04995h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The highly compressive durable graphene aerogels with enhanced strength was prepared by combining the freeze-casting process with the binding effect of polymer.
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Affiliation(s)
- Hao Lu
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing
| | - Chenwei Li
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing
| | - Baoqing Zhang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing
| | - Xin Qiao
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing
| | - Chen-Yang Liu
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing
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