1
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Wang S, Tan L, Yang Z, Zhao H, Guo L. A Strong, Tough, and Stable Composite with Nacre-Inspired Sandwich Structure. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2401883. [PMID: 38662873 DOI: 10.1002/adma.202401883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 04/23/2024] [Indexed: 05/14/2024]
Abstract
Improving the fracture resistance of nacre-inspired composites is crucial in addressing the strength-toughness trade-off. However, most previously proposed strategies for enhancing fracture resistance in these composites have been limited to interfacial modification by polymer, which restricts mechanical enhancement. Here, a composite material consisting of graphene oxide (GO) lamellae and nanocrystalline reinforced amorphous alumina nanowires (NAANs) has been developed. The structure of the composite is inspired by nacre and is composed of stacked GO nanosheets with NAANs in between, forming a sandwich-like structure. This design enhances the fracture resistance of the composite through the pull-out of GO nanosheets at the nanoscale and GO/NAANs sandwich-like coupling at the micro-scale, while also providing stiff ceramic support. This composite simultaneously possesses high strength (887.8 MPa), toughness (31.6 MJ m-3), superior cyclic stability (1600 cycles), and long-term (2 years) immersion stability, which outperform previously reported GO-based lamellar composites. The hierarchical fracture design provides a new path to design next-generation strong, tough, and stable materials for advanced engineering applications.
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Affiliation(s)
- Shaoxiong Wang
- School of Chemistry, Beihang University (BUAA), Beijing, 100191, P. R. China
| | - Lulu Tan
- School of Chemistry, Beihang University (BUAA), Beijing, 100191, P. R. China
| | - Zhao Yang
- School of Chemistry, Beihang University (BUAA), Beijing, 100191, P. R. China
| | - Hewei Zhao
- School of Chemistry, Beihang University (BUAA), Beijing, 100191, P. R. China
| | - Lin Guo
- School of Chemistry, Beihang University (BUAA), Beijing, 100191, P. R. China
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2
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Cao Y, Zu L, Du X, Franks GV, Liang Q, Li D. Solvent Effect on the Nanotextural Formation of Reduced Graphene Oxide Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15260-15267. [PMID: 37851543 DOI: 10.1021/acs.langmuir.3c01957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
Solvent is involved in many wet-chemical synthesis and bottom-up assembly processes. Understanding its influence on the nanotextural formation of the resultant assemblies is essential for the design and control of the properties for targeted applications. With wet chemically reduced graphene oxide (rGO) membranes as a materials platform, this study investigates the solvent effect on nanotexture formation in 2D nanomaterial-based membranes through light scattering and electrochemical characterization. Our finding indicates that the nanotexture of the resultant rGO membrane is largely correlated to the dielectric constant of the solvent. Specifically, solvents with higher dielectric constants yield rGO membranes with more wrinkled, loosely stacked, and less graphitized structures. In contrast, solvents with a lower dielectric constant tend to yield densely stacked structures with larger graphitized domains. Our finding underscores the important role of solvents in wet processing and nanoengineering of 2D nanomaterial-based membranes and provides valuable insights for their controlled synthesis and application.
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Affiliation(s)
- Yang Cao
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Lianhai Zu
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Xiaoyang Du
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
| | - George V Franks
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Qinghua Liang
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
- Key Laboratory of Rare Earths, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, Jiangxi 341000, China
| | - Dan Li
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
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3
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Feng Q, Wang L, Wan Z, Bu X, Deng Q, Li D, Chen C, Xu Z. Efficient ultraviolet blocking film on the lignin-rich lignocellulosic nanofibril from bamboo. Int J Biol Macromol 2023; 250:126059. [PMID: 37544557 DOI: 10.1016/j.ijbiomac.2023.126059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/08/2023]
Abstract
The ultraviolet (UV) blocking performance of current bio-based devices is always limited by delignification and exploited chemical treatment. Lignocellulosic nanofibril (LCNF) is a promising green alternative that could efficiently impede UV radiation. Herein, we proposed a robust LCNF film that achieved 99.8 ± 0.19 % UVB blocking, 96.1 ± 0.23 % UVA blocking, and was highly transparent without complex chemical modification. Compared to conventional lignin composites, this LCNF method involves 29.5 ± 2.31 % lignin content directly extracted from bamboo as a broad-spectrum sun blocker. This bamboo-based LCNF film revealed an excellent tensile strength of 94.9 ± 3.6 MPa and outstanding stability, adapting to the natural environment's variability. The residual hemicellulose could also embed the link between lignin and cellulose, confirming high lignin content in the network. The connection between lignin and hemicelluloses in the cellulose network was explored and described for the fibrillation of lignocellulosic nanofibrils. This research highlights the promising development of LCNFs for UV protection and bio-based solar absorption materials.
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Affiliation(s)
- Qian Feng
- College of Material Science and Engineering, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, Jiangsu Province 210037, PR China
| | - Luzhen Wang
- College of Material Science and Engineering, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, Jiangsu Province 210037, PR China
| | - Zhangmin Wan
- Departments of Chemical and Biological Engineering, Chemistry and Wood Science, The University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada
| | - Xiangting Bu
- College of Material Science and Engineering, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, Jiangsu Province 210037, PR China
| | - Qiaoyun Deng
- College of Material Science and Engineering, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, Jiangsu Province 210037, PR China
| | - Dagang Li
- College of Material Science and Engineering, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, Jiangsu Province 210037, PR China.
| | - Chuchu Chen
- College of Material Science and Engineering, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, Jiangsu Province 210037, PR China.
| | - Zhaoyang Xu
- College of Material Science and Engineering, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, Jiangsu Province 210037, PR China.
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4
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Kumari S, Dalal J, Kumar V, Kumar A, Ohlan A. Emerging Two-Dimensional Materials for Electromagnetic Interference Shielding Application. Int J Mol Sci 2023; 24:12267. [PMID: 37569645 PMCID: PMC10419163 DOI: 10.3390/ijms241512267] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 07/18/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
Graphene is the first two-dimensional material that becomes the center material in various research areas of material science, chemistry, condensed matter, and engineering due to its advantageous properties, including larger specific area, lower density, outstanding electrical conductivity, and ease of processability. These properties attracted the attention of material researchers that resulted in a large number of publications on EMI shielding in a short time and play a central role in addressing the problems and challenges faced in this modern era of electronics by electromagnetic interference. After the popularity of graphene, the community of material researchers investigated other two-dimensional materials like MXenes, hexagonal boron nitride, black phosphorous, transition metal dichalcogenides, and layered double hydroxides, to additionally enhance the EMI shielding response of materials. The present article conscientiously reviews the current progress in EMI shielding materials in reference to two-dimensional materials and addresses the future challenges and research directions to achieve the goals.
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Affiliation(s)
- Suman Kumari
- Department of Physics, Chaudhary Ranbir Singh University, Jind 126102, India
| | - Jasvir Dalal
- Department of Physics, Chaudhary Ranbir Singh University, Jind 126102, India
| | - Vibhor Kumar
- School of Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Anand Kumar
- Department of Physics, Chaudhary Ranbir Singh University, Jind 126102, India
| | - Anil Ohlan
- Department of Physics, Maharishi Dayanand University, Rohtak 124001, India
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5
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Du J, Fu G, Xu X, Elshahawy AM, Guan C. 3D Printed Graphene-Based Metamaterials: Guesting Multi-Functionality in One Gain. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207833. [PMID: 36760019 DOI: 10.1002/smll.202207833] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/08/2023] [Indexed: 05/11/2023]
Abstract
Advanced functional materials with fascinating properties and extended structural design have greatly broadened their applications. Metamaterials, exhibiting unprecedented physical properties (mechanical, electromagnetic, acoustic, etc.), are considered frontiers of physics, material science, and engineering. With the emerging 3D printing technology, the manufacturing of metamaterials becomes much more convenient. Graphene, due to its superior properties such as large surface area, superior electrical/thermal conductivity, and outstanding mechanical properties, shows promising applications to add multi-functionality into existing metamaterials for various applications. In this review, the aim is to outline the latest developments and applications of 3D printed graphene-based metamaterials. The structure design of different types of metamaterials and the fabrication strategies for 3D printed graphene-based materials are first reviewed. Then the representative explorations of 3D printed graphene-based metamaterials and multi-functionality that can be introduced with such a combination are further discussed. Subsequently, challenges and opportunities are provided, seeking to point out future directions of 3D printed graphene-based metamaterials.
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Affiliation(s)
- Junjie Du
- Frontiers Science Center for Flexible Electronics and MIIT Key Laboratory of Flexible Electronics (KLoFE), Institute of Flexible Electronics, Northwestern Polytechnical University, Xi'an, 710072, China
- Key Laboratory of Flexible Electronics of Zhejiang Province, Ningbo Institute of Northwestern Polytechnical University, 218 Qingyi Road, Ningbo, 315103, China
| | - Gangwen Fu
- Frontiers Science Center for Flexible Electronics and MIIT Key Laboratory of Flexible Electronics (KLoFE), Institute of Flexible Electronics, Northwestern Polytechnical University, Xi'an, 710072, China
- Key Laboratory of Flexible Electronics of Zhejiang Province, Ningbo Institute of Northwestern Polytechnical University, 218 Qingyi Road, Ningbo, 315103, China
| | - Xi Xu
- Frontiers Science Center for Flexible Electronics and MIIT Key Laboratory of Flexible Electronics (KLoFE), Institute of Flexible Electronics, Northwestern Polytechnical University, Xi'an, 710072, China
- Key Laboratory of Flexible Electronics of Zhejiang Province, Ningbo Institute of Northwestern Polytechnical University, 218 Qingyi Road, Ningbo, 315103, China
| | | | - Cao Guan
- Frontiers Science Center for Flexible Electronics and MIIT Key Laboratory of Flexible Electronics (KLoFE), Institute of Flexible Electronics, Northwestern Polytechnical University, Xi'an, 710072, China
- Key Laboratory of Flexible Electronics of Zhejiang Province, Ningbo Institute of Northwestern Polytechnical University, 218 Qingyi Road, Ningbo, 315103, China
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6
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Scale-up fabrication of two-dimensional material membranes: challenges and opportunities. Curr Opin Chem Eng 2023. [DOI: 10.1016/j.coche.2022.100892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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7
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Benzait Z, Trabzon L. Graphite Size Effect on Chemical Expansion and Graphene Oxide Properties. ACS OMEGA 2022; 7:37885-37895. [PMID: 36312385 PMCID: PMC9609075 DOI: 10.1021/acsomega.2c05059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
Does larger graphite flake size always lead to larger and better graphene oxide (GO)? Is there an optimum size to balance between the large building blocks needed and the defects generated during oxidation? In this study, the effect of using four different graphite flake sources on the size, structure, and properties of GO and reduced graphene oxide (rGO) was investigated. GO was mainly prepared by the enhanced synthesis method except for the smallest graphite size, which could not be expanded before oxidation. The effect of the flakes' lateral size and thickness on the expansion volume was also studied. Several characterization techniques were performed throughout this work, and their results provide evidence of how the graphite size changes not only the expansion volume of the chemically expanded graphite (CEG) as well as the final properties of GO or rGO but also the presence of organosulfate impurities, defects, wide size distribution, and the harsh oxidation reaction itself.
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Affiliation(s)
- Zineb Benzait
- Nanoscience
and Nanoengineering Department, Istanbul
Technical University, Maslak, Istanbul 34469, Turkey
| | - Levent Trabzon
- Nanoscience
and Nanoengineering Department, Istanbul
Technical University, Maslak, Istanbul 34469, Turkey
- Department
of Mechanical Engineering, Istanbul Technical
University, Istanbul 34437, Turkey
- MEMS
Research Center, Istanbul Technical University, Istanbul 34437, Turkey
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8
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Zhang Y, Wang S, Tang P, Zhao Z, Xu Z, Yu ZZ, Zhang HB. Realizing Spontaneously Regular Stacking of Pristine Graphene Oxide by a Chemical-Structure-Engineering Strategy for Mechanically Strong Macroscopic Films. ACS NANO 2022; 16:8869-8880. [PMID: 35604787 DOI: 10.1021/acsnano.1c10561] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Mechanical-electrical properties of macroscopic graphene films derived from graphene oxide (GO) sheets are substantially restricted by their surface wrinkles and structural misalignment. Herein, we propose a chemical-structure-engineering strategy to realize the spontaneously regular stacking of modified GO (GO-m) with trace carboxyl. The highly aligned GO-m film delivers a fracture strength and modulus of nearly 3- and 5-fold higher than a wrinkled film with conventional Hummer's method derived GO (GO-c). The favorable assembly pattern of GO-m sheets is attributed to their decreased interfacial friction on the atomic scale, which weakens their local gelation capability for freer configuration adjustment during the assembly process. The chemical structure of GO-m can be further engineered by an epoxide-to-hydroxyl reaction, achieving a record high tensile strength of up to 631 MPa for the pristine GO film. By exploring the relationship between the surface terminations of GO and its stacking mode, this work proves the feasibility to realize high-performance macroscopic materials with optimized microstructure through the chemical modulation of nanosheet assembly.
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Affiliation(s)
- Yu Zhang
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, 100029 Beijing, China
| | - Shijun Wang
- Applied Mechanics Laboratory, Department of Engineering Mechanics and Center for Nano and Micro Mechanics, Tsinghua University, 100084 Beijing, China
| | - Pingping Tang
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, 100029 Beijing, China
| | - Zhenfang Zhao
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, 100029 Beijing, China
| | - Zhiping Xu
- Applied Mechanics Laboratory, Department of Engineering Mechanics and Center for Nano and Micro Mechanics, Tsinghua University, 100084 Beijing, China
| | - Zhong-Zhen Yu
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, 100029 Beijing, China
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, 100029 Beijing, China
| | - Hao-Bin Zhang
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, 100029 Beijing, China
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, 100029 Beijing, China
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9
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Li J, Liu X, Feng Y, Yin J. Recent progress in polymer/two-dimensional nanosheets composites with novel performances. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101505] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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10
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Lai D, Chen X, Xu X, Wang G, Wang Y. Elastomeric Foldable and High-Temperature Endurance Porous Graphene Films with Superior Electromagnetic Interference Shielding Performance. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04201] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dengguo Lai
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Xiaoxiao Chen
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Xinhai Xu
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Gang Wang
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yin Wang
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
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11
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Yu S, Shen X, Kim JK. Beyond homogeneous dispersion: oriented conductive fillers for high κ nanocomposites. MATERIALS HORIZONS 2021; 8:3009-3042. [PMID: 34623368 DOI: 10.1039/d1mh00907a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Rational design of structures for regulating the thermal conductivities (κ) of materials is critical to many components and products employed in electrical, electronic, energy, construction, aerospace, and medical applications. As such, considerable efforts have been devoted to developing polymer composites with tailored conducting filler architectures and thermal conduits for highly improved κ. This paper is dedicated to overviewing recent advances in this area to offer perspectives for the next level of future development. The limitations of conventional particulate-filled composites and the issue of percolation are discussed. In view of different directions of heat dissipation in polymer composites for different end applications, various approaches for designing the micro- and macroscopic structures of thermally conductive networks in the polymer matrix are highlighted. Methodological approaches devised to significantly ameliorate thermal conduction are categorized with respect to the pathways of heat dissipation. Future prospects for the development of thermally conductive polymer composites with modulated thermal conduction pathways are highlighted.
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Affiliation(s)
- Seunggun Yu
- Insulation Materials Research Center, Korea Electrotechnology Research Institute (KERI), Changwon 51543, Korea.
| | - Xi Shen
- Department of Aeronautical and Aviation Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Jang-Kyo Kim
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
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12
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Klang K, Nickel KG. The Plant-Like Structure of Lance Sea Urchin Spines as Biomimetic Concept Generator for Freeze-Casted Structural Graded Ceramics. Biomimetics (Basel) 2021; 6:biomimetics6020036. [PMID: 34072652 PMCID: PMC8261639 DOI: 10.3390/biomimetics6020036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 05/22/2021] [Accepted: 05/24/2021] [Indexed: 11/16/2022] Open
Abstract
The spine of the lance sea urchin (Phyllacanthus imperialis) is an unusual plant-akin hierarchical lightweight construction with several gradation features: a basic core-shell structure is modified in terms of porosities, pore orientation and pore size, forming superstructures. Differing local strength and energy consumption features create a biomimetic potential for the construction of porous ceramics with predetermined breaking points and adaptable behavior in compression overload. We present a new detailed structural and failure analysis of those spines and demonstrate that it is possible to include at least a limited number of those features in an abstracted way in ceramics, manufactured by freeze-casting. This possibility is shown to come from a modified mold design and optimized suspensions.
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Affiliation(s)
- Katharina Klang
- Institute of Glass and Ceramics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstraße 5, D-91058 Erlangen, Germany
- Department of Geosciences, Applied Mineralogy, Eberhard Karls Universität Tübingen, Wilhelmstraße 56, D-72074 Tübingen, Germany
- Correspondence: (K.K.); (K.G.N.)
| | - Klaus G. Nickel
- Department of Geosciences, Applied Mineralogy, Eberhard Karls Universität Tübingen, Wilhelmstraße 56, D-72074 Tübingen, Germany
- Correspondence: (K.K.); (K.G.N.)
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13
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Chang J, Zhang M, Zhao Q, Qu L, Yuan J. Ultratough and ultrastrong graphene oxide hybrid films via a polycationitrile approach. NANOSCALE HORIZONS 2021; 6:341-347. [PMID: 33660723 DOI: 10.1039/d1nh00073j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Graphene oxide (GO) is a classic two dimensional (2D) building block that can be used to develop high-performance materials for numerous applications, particularly in the energy and environmental fields. Currently, the precise assembly of GO nanosheets into macroscopic nanohybrids of superior strength and toughness is desirable, and faces challenges and trade-offs. Herein, we exploited the freshly established polycationitrile method as a powerful molecular crosslinking strategy to engineer ultratough and ultrastrong GO/polymer hybrid films, in which a covalent triazine-based network was constructed in a mild condition to reinforce the interface between GO nanosheets. The tensile strength and toughness reached 585 ± 25 MPa and 14.93 ± 1.09 MJ m-3, respectively, which, to the best of our knowledge, are the current world records in all GO-based hybrid films. As an added merit of the tailor-made polymer crosslinker, the high mechanical performance can be maintained in large part at an extremely high relative humidity of 98%. This emerging interface-engineering approach paves a new avenue to produce integrated strong-and-tough 2D nanohybrid materials that are useful in aerospace, artificial muscle, energy harvesting, tissue engineering and more.
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Affiliation(s)
- Jian Chang
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm 10691, Sweden.
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14
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Lin J, Li P, Liu Y, Wang Z, Wang Y, Ming X, Gao C, Xu Z. The Origin of the Sheet Size Predicament in Graphene Macroscopic Papers. ACS NANO 2021; 15:4824-4832. [PMID: 33682415 DOI: 10.1021/acsnano.0c09503] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The larger size of graphene sheets should intuitively generate higher overall properties of their macroscopic materials. However, this intuitive notion still remains ambiguous. Here, we uncover that the wrinkle formation causes the counterintuitive size predicament of graphene sheets in their macroscopic materials. In the model of graphene oxide assembled papers, we reveal that the giant size of graphene oxide sheets aggravates the formation of larger wrinkles and more microvoids, causing the negative size effect in mechanical strength. A major microscopic origin of the size predicament is the skin wrinkling in the drying process, and the wrinkling behavior follows a general rule of deformation of an elastic thin plate. We use a wrinkle-engineering strategy to depress the spontaneously formed large wrinkles and succeed in the resolution of the size predicament. After wrinkle modulation, an authentically positive size effect reversely appears in which giant graphene sheets generate ultrahigh mechanical strength and superior functionalities of graphene papers. The origin of the size predicament reminds us of the hidden importance of modulating wrinkles for graphene macroscopic materials and provides a guidance of wrinkle engineering for graphene materials with advanced performances.
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Affiliation(s)
- Jiahao Lin
- 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
| | - Peng Li
- 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
| | - Yingjun Liu
- 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
| | - Ziqiu Wang
- 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
| | - Ya Wang
- 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
| | - Xin Ming
- 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
- Graphene Industry and Engineering Research Institute, Xiamen University, No. 422 Siming Road, Xiamen, 361005, P. R. China
| | - 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, 38 Zheda Road, Hangzhou, 310027, P. R. China
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15
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Gao E, Li R, Baughman RH. Predicted Confinement-Enhanced Stability and Extraordinary Mechanical Properties for Carbon Nanotube Wrapped Chains of Linear Carbon. ACS NANO 2020; 14:17071-17079. [PMID: 33197309 DOI: 10.1021/acsnano.0c06602] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The demand for high-modulus, high-strength, lightweight materials has continuously driven the bottom-up assembly of carbon nanostructures into high-performance bulk carbon materials, such as graphene sheets and carbon nanotube yarns. Carbyne, often called linear carbon, has a higher predicted gravimetric modulus and gravimetric strength than any other form of carbon, but possibly reacts under near-ambient conditions because of the extended sp1 hybridization. The successful fabrication of carbon nanotube wrapped single carbyne chain (Shi et al. Nat. Mater. 2016, 15, 634) suggests the possibility of carbyne's bulk production. Herein, we designed a type of carbon assembly that includes a possibly large array of carbyne chains confined within a single-walled nanotube sheath (nanotube wrapped carbynes, NTWCs), in which carbyne chains act as reinforcing building blocks, and the carbon nanotube sheath protects the multiple carbyne chains against chemical or topochemical reaction. We showed that NTWCs exhibit confinement-enhanced stabilities, even when they contain multiple neighboring carbyne chains. We developed a mechanics model for exploring the mechanical properties of NTWCs. On the basis of this model, the gravimetric modulus (and strength) of NTWCs was predicted to increase from 356.4 (50.25) to 977.2 GPa·g-1·cm3 (71.20 GPa·g-1·cm3) as the mass ratio of carbyne carbons to sheath carbons increases, which is supported by atomistic simulations. The highest calculated gravimetric modulus and strength of NTWCs are 174.2% and 41.7%, respectively, higher than those of either graphene or carbon nanotubes. The corresponding highest values of engineering modulus and strength of NTWCs with a density of 1.54 g·cm-3 are 1505 and 109.6 GPa, respectively. Hence, NTWCs are promising for uses in high-modulus, high-strength, lightweight composites.
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Affiliation(s)
- Enlai Gao
- Department of Engineering Mechanics, School of Civil Engineering, Wuhan University, Wuhan, Hubei 430072, China
| | - Ruishan Li
- Department of Engineering Mechanics, School of Civil Engineering, Wuhan University, Wuhan, Hubei 430072, China
| | - Ray H Baughman
- Alan G. MacDiarmid NanoTech Institute, The University of Texas at Dallas, Richardson, Texas 75080, United States
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Fang WZ, Peng L, Liu YJ, Wang F, Xu Z, Gao C. A Review on Graphene Oxide Two-dimensional Macromolecules: from Single Molecules to Macro-assembly. CHINESE JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1007/s10118-021-2515-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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Zeng J, Xu R, Jiao L, Wang Y, Chen L, Windle CD, Ding X, Zhang Z, Han Q, Qu L. A 3D-graphene fiber electrode embedded with nitrogen-rich-carbon-coated ZIF-67 for the ultrasensitive detection of adrenaline. J Mater Chem B 2020; 7:5291-5295. [PMID: 31464334 DOI: 10.1039/c9tb01223k] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A novel nitrogen-rich-carbon-coated ZIF-67 embedded three-dimensional-graphene (ZIF-67/NC/3DG) fiber was fabricated via a facile one-pot electrodeposition self-assembly method, and used as a prominent electrode for the non-enzymatic detection of adrenaline (Ad). In this design, the prepared ZIF-67 adsorbs Ad through hydrogen bonding and electrostatic interaction, while polypyrrole functions as the precursor of the conductive NC that seamlessly connects ZIF-67 with the 3DG fiber electrode to ameliorate the poor conductivity of the ZIF-67 moiety and thus improve the sensitivity of the ZIF-67/NC/3DG fiber electrode for detecting Ad. The constructed fiber sensor shows a double linear response over the Ad concentration range of 0.06-95 μM with a high sensitivity of 44.6 mA mM-1 cm-2 and 95.0-5900 μM with a good sensitivity of 11.0 mA mM-1 cm-2, giving a low detection limit of 0.02 μM and excellent repeatability. The ZIF-67/NC/3DG fiber electrode was further successfully applied for the determination of Ad in a real sample of human serum, indicating that this fiber electrode is a promising miniaturized sensor for electrochemical analysis.
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Affiliation(s)
- Jinfeng Zeng
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Ruoyu Xu
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Le Jiao
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Yuze Wang
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Liwei Chen
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Christopher D Windle
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Xiaoteng Ding
- College of Life Sciences, Qingdao University, Qingdao 266071, P. R. China
| | - Zhipan Zhang
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Qing Han
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Liangti Qu
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
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18
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Li P, Yang M, Liu Y, Qin H, Liu J, Xu Z, Liu Y, Meng F, Lin J, Wang F, Gao C. Continuous crystalline graphene papers with gigapascal strength by intercalation modulated plasticization. Nat Commun 2020; 11:2645. [PMID: 32461580 PMCID: PMC7253461 DOI: 10.1038/s41467-020-16494-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 05/06/2020] [Indexed: 11/18/2022] Open
Abstract
Graphene has an extremely high in-plane strength yet considerable out-of-plane softness. High crystalline order of graphene assemblies is desired to utilize their in-plane properties, however, challenged by the easy formation of chaotic wrinkles for the intrinsic softness. Here, we find an intercalation modulated plasticization phenomenon, present a continuous plasticization stretching method to regulate spontaneous wrinkles of graphene sheets into crystalline orders, and fabricate continuous graphene papers with a high Hermans' order of 0.93. The crystalline graphene paper exhibits superior mechanical (tensile strength of 1.1 GPa, stiffness of 62.8 GPa) and conductive properties (electrical conductivity of 1.1 × 105 S m-1, thermal conductivity of 109.11 W m-1 K-1). We extend the ultrastrong graphene papers to the realistic laminated composites and achieve high strength combining with attractive conductive and electromagnetic shielding performance. The intercalation modulated plasticity is revealed as a vital state of graphene assemblies, contributing to their industrial processing as metals and plastics.
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Affiliation(s)
- Peng Li
- 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, 310027, Hangzhou, P. R. China
| | - Mincheng Yang
- 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, 310027, Hangzhou, P. R. China
| | - Yingjun Liu
- 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, 310027, Hangzhou, P. R. China
| | - Huasong Qin
- State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, 710049, Xi'an, P. R. China
| | - Jingran Liu
- State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, 710049, Xi'an, P. R. China
| | - 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, 38 Zheda Road, 310027, Hangzhou, P. R. China.
| | - Yilun Liu
- State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, 710049, Xi'an, P. R. China.
| | - Fanxu Meng
- 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, 310027, Hangzhou, P. R. China
| | - Jiahao Lin
- 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, 310027, Hangzhou, P. R. China
| | - Fang Wang
- 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, 310027, Hangzhou, 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, 310027, Hangzhou, P. R. China.
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Xu H, Jin H, Qi Z, Guo Y, Wang J, Zhu Y, Ji H. Graphene foil as a current collector for NCM material-based cathodes. NANOTECHNOLOGY 2020; 31:205710. [PMID: 32018236 DOI: 10.1088/1361-6528/ab72ba] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
When used as a current collector, aluminum foil (AF) is vulnerable to local anodic corrosion during the charge/discharge process, which can lead to the deterioration of lithium-ion batteries (LIBs). Herein, a graphene foil (GF) with high electrical conductivity (∼5800 S cm-1) and low mass density (1.80 g cm-3) was prepared by reduction of graphene oxide foil with ultra-high temperature (2800 °C) annealing, and it exhibited significantly anodic corrosion resistance when serving as a current collector. Moreover, a LiNi0.5Co0.2Mn0.3O2 (NCM523) cathode using GF as a current collector (NCM523/GF) demonstrated a gravimetric capacity of 137.3 mAh g-1 at 0.5 C based on the mass of the whole electrode consisting of the active material, carbon black, binder, and the current collector, which is 44.5% higher than that of the NCM523/AF electrode. Furthermore, the NCM523/GF electrode retains higher capacity at relatively faster rates, from 0.1 C to 5.0 C. Therefore, GF, a lightweight corrosion-resistant current collector, is expected to replace the current commercial metal current collectors in LIBs and to achieve high energy-density batteries.
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Affiliation(s)
- Huailiang Xu
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Applied Chemistry, CAS Key Laboratory of Materials for Energy Conversion, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China. Hefei 230026, People's Republic of China
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20
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Zhan H, Xiong Z, Cheng C, Liang Q, Liu JZ, Li D. Solvation-Involved Nanoionics: New Opportunities from 2D Nanomaterial Laminar Membranes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1904562. [PMID: 31867816 DOI: 10.1002/adma.201904562] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/25/2019] [Indexed: 06/10/2023]
Abstract
Nanoporous laminar membranes composed of multilayered 2D nanomaterials (2D-NLMs) are increasingly being exploited as a unique material platform for understanding solvated ion transport under nanoconfinement and exploring novel nanoionics-related applications, such as ion sieving, energy storage and harvesting, and in other new ionic devices. Here, the fundamentals of solvation-involved nanoionics in terms of ionic interactions and their effect on ionic transport behaviors are discussed. This is followed by a summary of key requirements for materials that are being used for solvation-involved nanoionics research, culminating in a demonstration of unique features of 2D-NLMs. Selected examples of using 2D-NLMs to address the key scientific problems related to nanoconfined ion transport and storage are then presented to demonstrate their enormous potential and capabilities for nanoionics research and applications. To conclude, a personal perspective on the challenges and opportunities in this emerging field is presented.
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Affiliation(s)
- Hualin Zhan
- Department of Chemical Engineering, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Zhiyuan Xiong
- Department of Chemical Engineering, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Chi Cheng
- Department of Chemical Engineering, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Qinghua Liang
- Department of Chemical Engineering, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Jefferson Zhe Liu
- Department of Mechanical Engineering, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Dan Li
- Department of Chemical Engineering, The University of Melbourne, Parkville, VIC, 3010, Australia
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21
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Chen J, Dai F, Zhang L, Xu J, Liu W, Zeng S, Xu C, Chen L, Dai C. Molecular insights into the dispersion stability of graphene oxide in mixed solvents: Theoretical simulations and experimental verification. J Colloid Interface Sci 2020; 571:109-117. [PMID: 32192935 DOI: 10.1016/j.jcis.2020.03.036] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/09/2020] [Accepted: 03/09/2020] [Indexed: 01/21/2023]
Abstract
HYPOTHESIS Improving the dispersion stability of graphene oxide (GO) suspensions is of great importance in many potential applications of GO, such as GO-based laminated membranes used for separation, printable electronics, and aqueous liquid crystals. EXPERIMENTS Molecular dynamics (MD) simulations and quantum chemistry (QC) calculations along with complementary experiments were performed to study the dispersion stability of GO in the mixtures of water and polar organic solvents (dimethyl sulfoxide (DMSO), ethanol, and acetone). FINDINGS GO exhibits better dispersion stability in a solvent mixture than in pure water. The MD simulations uncover the underlying mechanism that mixed solvent layers are formed steadily on the surface of GO sheets and screen the interactions between them. QC calculations reveal that both DMSO and water form hydrogen bonds with the oxidized regions of GO. X-ray diffraction experiments confirm that the GO sheets are intercalated by DMSO and water molecules. Furthermore, the optimal ratio of the organic solvent to water is determined to achieve the best dispersion stability of GO through MD simulations. And such ratio is also verified by ultraviolet absorption spectral experiments. Thus, our findings provide a facile method to prepare GO suspensions with high dispersion stability.
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Affiliation(s)
- Junlang Chen
- Department of Optical Engineering, Zhejiang A&F University, Lin'an 311300, China.
| | - Fangfang Dai
- Department of Optical Engineering, Zhejiang A&F University, Lin'an 311300, China.
| | - Lingling Zhang
- Department of Optical Engineering, Zhejiang A&F University, Lin'an 311300, China.
| | - Jing Xu
- Department of Optical Engineering, Zhejiang A&F University, Lin'an 311300, China.
| | - Wei Liu
- Department of Optical Engineering, Zhejiang A&F University, Lin'an 311300, China.
| | - Songwei Zeng
- School of Information and Industry, Zhejiang A&F University, Lin'an 311300, China.
| | - Can Xu
- Key Lab for Magnetism and Magnetic Materials of MOE, Lanzhou University, Lanzhou 730000, China.
| | - Liang Chen
- Department of Optical Engineering, Zhejiang A&F University, Lin'an 311300, China.
| | - Chaoqing Dai
- Department of Optical Engineering, Zhejiang A&F University, Lin'an 311300, China.
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Liu Y, Su D, Sang Z, Su X, Chen H, Yan X. High-performance layered NiCo2S4@rGO/rGO film electrode for flexible electrochemical energy storage. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.135088] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Chi H, Xu Z, Duan X, Yang J, Wang F, Li Z. High-Performance Colorimetric Room-Temperature NO 2 Sensing Using Spin-Coated Graphene/Polyelectrolyte Reflecting Film. ACS APPLIED MATERIALS & INTERFACES 2019; 11:32390-32397. [PMID: 31390858 DOI: 10.1021/acsami.9b09901] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Nitrogen dioxide (NO2) is a colorless, flammable, and dangerous gas even at very low concentrations. To date, quantitative analysis of NO2 concentrations have been made using conventional techniques (e.g., electrochemical method). In light of the energy and time consumption involved in such applications, efforts have been made to develop new detection methods that are more sensitive and sustainable. At this point, structural color-based sensing shows great advantages because of its sensitive, visualized, and reproducible response. In this study, graphene oxide/polystyrene sulfonate (GO/PSS) optical films were designed and prepared to evaluate the potential usage for the effective detection of NO2. The uniform GO/PSS thin films were fabricated by the spin-coating-assisted layer-by-layer assembly method. The resulting colorful films exhibited ultrafast response, obvious optical shifts, and good reversibility within the visible range toward NO2. The concentration-dependent NO2 sensing characteristics and selectivity were investigated as well. The dynamic study showed that the absorption/desorption time was 200/200 ms and the detection limit was 1.0 ppm at room temperature. The sensing mechanism was investigated and verified by computer simulations. Such ultrasensitive and colorimetric properties of GO/PSS films may enable many potential applications such as disposable sensors for health and environmental monitoring.
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Affiliation(s)
- Hong Chi
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , China
| | - Zhen Xu
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , China
| | - Xiaosen Duan
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , China
| | - Jing Yang
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way, Innovis, #08-03 , Singapore 138634 , Singapore
| | - Fuke Wang
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way, Innovis, #08-03 , Singapore 138634 , Singapore
| | - Zibiao Li
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way, Innovis, #08-03 , Singapore 138634 , Singapore
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Zeng J, Ding X, Chen L, Jiao L, Wang Y, Windle CD, Han Q, Qu L. Ultra-small dispersed Cu x O nanoparticles on graphene fibers for miniaturized electrochemical sensor applications. RSC Adv 2019; 9:28207-28212. [PMID: 35530476 PMCID: PMC9071006 DOI: 10.1039/c9ra03802g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 08/28/2019] [Indexed: 01/13/2023] Open
Abstract
A graphene microfiber (GF) modified with ultrafine CuxO nanoparticles (CuxONPs/GF) has been fabricated by direct annealing of electrodeposited nano-sized copper-based metal organic frameworks (HKUST-1) and used as an electrode for nonenzymatic H2O2 sensing. Benefiting from the unique microfiber architecture and synergetic effects, as well as strong coupling between components with many active sites and boosted electron transport, the CuxONPs/GF electrode shows prominent sensitivity, selectivity and long-term operational stability for the detection of H2O2. Further work successfully applied this CuxONPs/GF electrode to detection of H2O2 in real samples such as milk and human serum. These results indicate that the CuxONPs/GF is a promising mini-sized sensor in electrochemical analysis. A graphene microfiber modified with ultrafine CuxO nanoparticles (CuxONPs/GF) is fabricated by direct annealing of electrodeposited nano-sized copper-based metal–organic frameworks (HKUST-1) and used as an electrode for nonenzymatic H2O2 sensing.![]()
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Affiliation(s)
- Jinfeng Zeng
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology Beijing 100081 P. R. China
| | - Xiaoteng Ding
- College of Life Sciences, Qingdao University Qingdao 266071 P. R. China
| | - Liwei Chen
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology Beijing 100081 P. R. China
| | - Le Jiao
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology Beijing 100081 P. R. China
| | - Yuze Wang
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology Beijing 100081 P. R. China
| | - Christopher D Windle
- Solar Energy and Advanced Materials Group, Department of Chemical Engineering, University College London Torrington Place London WC1E 7JE UK
| | - Qing Han
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology Beijing 100081 P. R. China
| | - Liangti Qu
- Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology Beijing 100081 P. R. China
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25
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Wu M, Chi F, Geng H, Ma H, Zhang M, Gao T, Li C, Qu L. Arbitrary waveform AC line filtering applicable to hundreds of volts based on aqueous electrochemical capacitors. Nat Commun 2019; 10:2855. [PMID: 31253802 PMCID: PMC6598994 DOI: 10.1038/s41467-019-10886-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 06/03/2019] [Indexed: 01/11/2023] Open
Abstract
Filtering capacitor is a necessary component in the modern electronic circuit. Traditional filtering capacitor is often limited by its bulky and rigid configuration and narrow workable scope of applications. Here, an aqueous hybrid electrochemical capacitor is developed for alternating current line filtering with an applicable wide frequency range from 1 to 10,000 Hz. This capacitor possesses an areal specific energy density of 438 μF V2 cm−2 at 120 Hz, which to the best of our knowledge is record high among aqueous electrochemical capacitors reported so far. It can convert arbitrary alternating current waveforms and even noises to straight signals. After integration of capacitor units, a workable voltage up to hundreds of volts (e.g., 200 V) could be achieved without sacrificing its filtering capability. The integrated features of wide frequency range and high workable voltage for this capacitor present promise for multi-scenario and applicable filtering capacitors of practical importance. AC to DC conversion is important for renewable power sources, and requires suitable filtering capacitors. Here the authors report a series-connected configuration of aqueous hybrid electrochemical capacitors for alternate current line filtering of arbitrary waveforms in wide frequency and voltage ranges.
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Affiliation(s)
- Mingmao Wu
- Department of Chemistry, Tsinghua University, 100084, Beijing, P. R. China
| | - Fengyao Chi
- Department of Chemistry, Tsinghua University, 100084, Beijing, P. R. China
| | - Hongya Geng
- Department of Chemistry, Tsinghua University, 100084, Beijing, P. R. China
| | - Hongyun Ma
- Department of Chemistry, Tsinghua University, 100084, Beijing, P. R. China
| | - Miao Zhang
- Department of Chemistry, Tsinghua University, 100084, Beijing, P. R. China
| | - Tiantian Gao
- Department of Chemistry, Tsinghua University, 100084, Beijing, P. R. China
| | - Chun Li
- Department of Chemistry, Tsinghua University, 100084, Beijing, P. R. China
| | - Liangti Qu
- Department of Chemistry, Tsinghua University, 100084, Beijing, P. R. China. .,Key Laboratory for Advanced Materials Processing Technology, Ministry of Education of China, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, P. R. China. .,School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 100081, Beijing, P. R. China.
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Wen Y, Gao E, Hu Z, Xu T, Lu H, Xu Z, Li C. Chemically modified graphene films with tunable negative Poisson's ratios. Nat Commun 2019; 10:2446. [PMID: 31164652 PMCID: PMC6547682 DOI: 10.1038/s41467-019-10361-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 05/08/2019] [Indexed: 11/17/2022] Open
Abstract
Graphene-derived macroscopic assemblies feature hierarchical nano- and microstructures that provide numerous routes for surface and interfacial functionalization achieving unconventional material properties. We report that the microstructural hierarchy of pristine chemically modified graphene films, featuring wrinkles, delamination of close-packed laminates, their ordered and disordered stacks, renders remarkable negative Poisson’s ratios ranging from −0.25 to −0.55. The mechanism proposed is validated by the experimental characterization and theoretical analysis. Based on the understanding of microstructural origins, pre-strech is applied to endow chemically modified graphene films with controlled negative Poisson’s ratios. Modulating the wavy textures of the inter-connected network of close-packed laminates in the chemically modified graphene films also yields finely-tuned negative Poisson’s ratios. These findings offer the key insights into rational design of films constructed from two-dimensional materials with negative Poisson’s ratios and mechanomutable performance. Negative Poisson’s ratio, offering unusual properties, is displayed by several materials and predicted for graphene. This work demonstrates such behaviors in monolithic films with interconnected networks of close-packed graphene laminates, and tunability through the chemistry and microstructures.
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Affiliation(s)
- Yeye Wen
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, 100084, China
| | - Enlai Gao
- Department of Engineering Mechanics, School of Civil Engineering, Wuhan University, Wuhan, Hubei, 430072, China
| | - Zhenxing Hu
- Department of Mechanical Engineering, The University of Texas at Dallas, 800 W. Campbell Rd., Richardson, TX, 75080, USA
| | - Tingge Xu
- Department of Mechanical Engineering, The University of Texas at Dallas, 800 W. Campbell Rd., Richardson, TX, 75080, USA
| | - Hongbing Lu
- Department of Mechanical Engineering, The University of Texas at Dallas, 800 W. Campbell Rd., Richardson, TX, 75080, USA
| | - Zhiping Xu
- Applied Mechanics Laboratory, Department of Engineering Mechanics and Center for Nano and Micro Mechanics, Tsinghua University, 100084, Beijing, China.
| | - Chun Li
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, 100084, China.
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Ji D, Kim J. Bioinspired Design and Fabrication of Polymer Composite Films Consisting of a Strong and Stiff Organic Matrix and Microsized Inorganic Platelets. ACS NANO 2019; 13:2773-2785. [PMID: 30676740 DOI: 10.1021/acsnano.8b06767] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Intensive studies on nacre-inspired composites with exceptional mechanical properties based on an organic/inorganic hierarchical layered structure have been conducted; however, integrating high strength, stiffness, and toughness for engineering materials still remains a challenge. We herein report the design and fabrication of polymer composites through a hydrogel-film casting method that allow for building uniformly layered organic/inorganic microstructure. Alginate (Alg) was used for an organic matrix, whose mechanical properties were controlled by Ca2+ cross-linking toward the simultaneously strong, stiff, and tough resultant composite. Alumina (Alu) microplatelets were used for horizontally aligned inorganic phase, and their alignment and interactions with the organic matrix were improved by polyvinylpyrrolidone (PVP) coating on the platelet. The composite film exhibits well-balanced elastic and plastic deformation under tensile stress, leading to high stiffness and toughness, which have not been generally achieved in microplatelet-based composite films developed in previous studies. The synergistic effect of Ca2+ cross-linking and PVP-coated Alu platelets on the mechanical properties improved polymer-platelet interfacial interactions, and platelet alignment is clearly demonstrated through mechanical tests and Fourier transform infrared and X-ray diffraction analyses. We further demonstrate that the reinforcing effect of the Alu platelet and PVP-coated platelet on the mechanical properties is dependent on humidity. Such effects are maximized at highly dry conditions, which is consistent with the model estimation. Furthermore, a thick bulk composite was produced by laminating thin films and showed high mechanical properties under flexural stress. Our design and fabrication strategies combined with the understanding of their mechanism yield an alternative approach to produce engineered composite materials.
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28
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Yan JX, Leng YC, Guo YN, Wang GQ, Gong H, Guo PZ, Tan PH, Long YZ, Liu XL, Han WP. Highly Conductive Graphene Paper with Vertically Aligned Reduced Graphene Oxide Sheets Fabricated by Improved Electrospray Deposition Technique. ACS APPLIED MATERIALS & INTERFACES 2019; 11:10810-10817. [PMID: 30807085 DOI: 10.1021/acsami.8b19811] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Because of its notable electrical and mechanical properties, the highly conductive graphene paper has great potential applications in future flexible electronics. In this study, we report a simple and effective method to prepare vertically aligned graphene oxide papers from graphene oxide suspensions by an improved electrospray deposition technique with a moving stage, which is controlled by computer. Then, the flexible reduced graphene oxide papers are successfully synthesized after reduction by using hydroiodic acid. The obtained reduced graphene oxide paper has an electrical conductivity as high as 6180 S/m, which is more than one and a half times of the reduced graphene oxide paper film, which was fabricated by using the electrospray deposition technique without the moving stage. The experimental results approved for the first time that the degree of alignment of reduced graphene oxide sheets can affect the conductivity of the reduced graphene oxide papers. Further electrochemical measurements for a symmetrical supercapacitor device based on the prepared reduced graphene oxide paper indicate that it has great capacitive performance and electrochemical stability. It exhibited relatively high specific capacitance (174 F·g-1) at a current density of 1 A·g-1 in 6 M KOH aqueous solution, and its capacitance can retain approximately 86% after 1000 cycles. In addition, patterned freestanding reduced graphene oxide papers, which have potential applications in many fields such as stretchable electronics and wearable devices, also can be fabricated by using this method.
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Affiliation(s)
| | - Yu-Chen Leng
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors , Chinese Academy of Sciences , Beijing 100083 , China
| | | | | | | | | | - Ping-Heng Tan
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors , Chinese Academy of Sciences , Beijing 100083 , China
| | | | - Xue-Lu Liu
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors , Chinese Academy of Sciences , Beijing 100083 , China
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29
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Huang H, He P, Huang T, Hu S, Xu T, Gu H, Yang S, Song L, Xie X, Ding G. Electrochemical Strategy for Flexible and Highly Conductive Carbon Films: The Role of 3-Dimensional Graphene/Graphite Aggregates. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1239-1246. [PMID: 30525387 DOI: 10.1021/acsami.8b17060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Conductive carbon films with good flexibility are ever-increasingly desired for electronics. Previous efforts relying on graphene films to achieve this required special treatment to create wrinkles in the lamellar stacking sheet structure. Here, films with a wrinkled structure were facilely fabricated from electrochemically derived 3-dimiensional (3D) graphene/graphite aggregates, exhibiting excellent flexibility and high conductivity. The resulting films are very flexible that can bear 1000 times fold without breakage. A high conductivity up to 100 000 S m-1 can be achieved after a relatively low temperature annealing (1000 °C) owing to its low content of defect and large size of graphene/graphite aggregates. Based on these properties, an electrothermal heater assembled from these composite films supplies a high saturated temperature (423 °C) at low working voltages (4 V). These superior properties, together with the advantage of environmental friendliness and facile and large-scale fabrication, endow the composite films with great potential applications in flexible electronics.
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Affiliation(s)
- Haoguang Huang
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Peng He
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Tao Huang
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Shike Hu
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Tao Xu
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Hongyu Gu
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Siwei Yang
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Lixin Song
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Xiaoming Xie
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Guqiao Ding
- CAS Center for Excellence in Superconducting Electronics (CENSE) , Shanghai 200050 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
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30
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Ma L, Zhou M, He C, Li S, Fan X, Nie C, Luo H, Qiu L, Cheng C. Graphene-based advanced nanoplatforms and biocomposites from environmentally friendly and biomimetic approaches. GREEN CHEMISTRY 2019. [DOI: 10.1039/c9gc02266j] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Environmentally friendly and biomimetic approaches to fabricate graphene-based advanced nanoplatforms and biocomposites for biomedical applications are summarized in this review.
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Affiliation(s)
- Lang Ma
- Department of Ultrasound
- West China Hospital
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
| | - Mi Zhou
- College of Biomass Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Chao He
- Department of Ultrasound
- West China Hospital
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
| | - Shuang Li
- Functional Materials
- Department of Chemistry
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | - Xin Fan
- Department of Ultrasound
- West China Hospital
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
| | - Chuanxiong Nie
- Department of Chemistry and Biochemistry
- Freie Universitat Berlin
- Berlin 14195
- Germany
| | - Hongrong Luo
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Li Qiu
- Department of Ultrasound
- West China Hospital
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
| | - Chong Cheng
- Department of Ultrasound
- West China Hospital
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
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31
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Lin S, Ju S, Zhang J, Shi G, He Y, Jiang D. Ultrathin flexible graphene films with high thermal conductivity and excellent EMI shielding performance using large-sized graphene oxide flakes. RSC Adv 2019; 9:1419-1427. [PMID: 35517999 PMCID: PMC9059650 DOI: 10.1039/c8ra09376h] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 12/27/2018] [Indexed: 11/29/2022] Open
Abstract
As the demand for wearable and foldable electronic devices increases rapidly, ultrathin and flexible thermal conducting films with exceptional electromagnetic interference (EMI) shielding effectiveness (SE) are greatly needed. Large-sized graphene oxide flakes and thermal treatment were employed to fabricate lightweight, flexible and highly conductive graphene films. Compared to graphene films made of smaller-sized flakes, the graphene film made of large-sized flakes possesses less defects and more conjugated domains, leading to higher electrical and higher thermal conductivities, as well as higher EMI SE. By compressing four-layer porous graphene films together, a 14 μm-thick graphene film (LG-4) was obtained, possessing EMI SE of 73.7 dB and the specific SE divided by thickness (SSE/t) of 25 680 dB cm2 g−1. The ultrahigh EMI shielding property of the LG-4 film originates from the excellent electrical conductivity (6740 S cm−1), as well as multi-layer structure composed of graphene laminates and insulated air pores. Moreover, the LG-4 film shows excellent flexibility and high thermal conductivity (803.1 W m−1 K−1), indicating that the film is a promising candidate for lightweight, flexible thermal conducting film with exceptional EMI shielding performance. As the demand for wearable and foldable electronic devices increases rapidly, ultrathin and flexible thermal conducting films with exceptional electromagnetic interference (EMI) shielding effectiveness (SE) are greatly needed.![]()
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Affiliation(s)
- Shaofeng Lin
- Department of Materials Science and Engineering
- National University of Defense Technology
- Changsha
- People Republic of China
| | - Su Ju
- Department of Materials Science and Engineering
- National University of Defense Technology
- Changsha
- People Republic of China
| | - Jianwei Zhang
- Department of Materials Science and Engineering
- National University of Defense Technology
- Changsha
- People Republic of China
| | - Gang Shi
- Department of Materials Science and Engineering
- National University of Defense Technology
- Changsha
- People Republic of China
| | - Yonglyu He
- Department of Materials Science and Engineering
- National University of Defense Technology
- Changsha
- People Republic of China
| | - Dazhi Jiang
- Department of Materials Science and Engineering
- National University of Defense Technology
- Changsha
- People Republic of China
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32
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Chen H, Du W, Liu J, Qu L, Li C. Efficient room-temperature production of high-quality graphene by introducing removable oxygen functional groups to the precursor. Chem Sci 2018; 10:1244-1253. [PMID: 30774925 PMCID: PMC6349015 DOI: 10.1039/c8sc03695k] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Accepted: 11/04/2018] [Indexed: 11/21/2022] Open
Abstract
The excellent solution-processability of graphene oxide (GO) has provided a collection of strategies for the construction of functional graphene assemblies. To improve the performance of graphene-based materials, structurally intact GO should be prepared as a precursor for high-quality graphene; however, solution chemical methods have been constantly challenged by a structural integrity versus fabrication yield trade-off. Here, we report a wet chemical method for the high-efficiency production of a high-quality graphene oxide precursor, with all steps conducted at room-temperature. The functionalization of graphite was performed under temperature and water content control in a concentrated sulfuric acid-potassium permanganate system, and the resulting GO showed a monolayer yield of over 120%. We show that the increased production yield comes from the high functionalization degree and, more interestingly, the functional groups on GO were proven to be removable upon reduction with hydroiodic acid, which produced high-quality graphene-based materials.
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Affiliation(s)
- Hongwu Chen
- Department of Chemistry , MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology , Tsinghua University , Beijing 100084 , P. R. China .
| | - Wencheng Du
- Department of Chemistry , MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology , Tsinghua University , Beijing 100084 , P. R. China .
| | - Jing Liu
- Department of Chemistry , MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology , Tsinghua University , Beijing 100084 , P. R. China .
| | - Liangti Qu
- Department of Chemistry , MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology , Tsinghua University , Beijing 100084 , P. R. China . .,Key Laboratory for Advanced Materials Processing Technology , Ministry of Education of China , State Key Laboratory of Tribology , Department of Mechanical Engineering , Tsinghua University , Beijing 100084 , P. R. China
| | - Chun Li
- Department of Chemistry , MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology , Tsinghua University , Beijing 100084 , P. R. China .
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33
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Gao J, Shao C, Shao S, Wan F, Gao C, Zhao Y, Jiang L, Qu L. Laser-Assisted Large-Scale Fabrication of All-Solid-State Asymmetrical Micro-Supercapacitor Array. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1801809. [PMID: 30085390 DOI: 10.1002/smll.201801809] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 07/05/2018] [Indexed: 05/11/2023]
Abstract
The micro-supercapacitors are of great value for portable, flexible, and integrated electronic equipments. Here, the large-scale and integrated asymmetrical micro-supercapacitor (AMSC) array is fabricated in virtue of the laser direct writing and electrodeposition technology. The AMSC shows the ideal flexibility, high areal specific capacitance (21.8 mF cm-2 ), and good rate capability. Moreover, its energy density reaches 12.16 µW h cm-2 , outperforming most micro-supercapacitors reported previously. Meanwhile, large-scale series-connected AMSCs are integrated on the flexible substrates (e.g., indium tin oxide-polyethylene terephthalate film), which can power a veriety of the commercial electronics. The combination of AMSCs array, solar cell, and electronic device proves the feasibility for practical application in the portable, flexible, and integrated electronic equipments.
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Affiliation(s)
- Jian Gao
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Changxiang Shao
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Shengxian Shao
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Feng Wan
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Chang Gao
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Yang Zhao
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Lan Jiang
- Laser Micro-/Nano-Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Key Laboratory for Advanced Materials Processing Technology, Ministry of Education of China, State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Liangti Qu
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Key Laboratory for Advanced Materials Processing Technology, Ministry of Education of China, State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, P. R. China
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34
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Zhong J, Sun W, Wei Q, Qian X, Cheng HM, Ren W. Efficient and scalable synthesis of highly aligned and compact two-dimensional nanosheet films with record performances. Nat Commun 2018; 9:3484. [PMID: 30154403 PMCID: PMC6113301 DOI: 10.1038/s41467-018-05723-2] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 07/13/2018] [Indexed: 11/16/2022] Open
Abstract
It is crucial to align two-dimensional nanosheets to form a highly compact layered structure for many applications, such as electronics, optoelectronics, thermal management, energy storage, separation membranes, and composites. Here we show that continuous centrifugal casting is a universal, scalable and efficient method to produce highly aligned and compact two-dimensional nanosheets films with record performances. The synthesis mechanism, structure control and property dependence of alignment and compaction of the films are discussed. Significantly, 10-μm-thick graphene oxide films can be synthesized within 1 min, and scalable synthesis of meter-scale films is demonstrated. The reduced graphene oxide films show super-high strength (~660 MPa) and conductivity (~650 S cm−1). The reduced graphene oxide/carbon nanotube hybrid-film-based all-solid-state flexible supercapacitors exhibit ultrahigh volumetric capacitance (407 F cm−3) and energy density (~10 mWh cm−3) comparable to that of thin-film lithium batteries. We also demonstrate the production of highly anisotropic graphene nanocomposites as well as aligned, compact films and vertical heterostructures of various nanosheets. Aligning 2D nanosheets to form a compact layered structure can maximize the in-plane properties. Here the authors report an efficient and scalable continuous centrifugal casting method to produce highly compact and well-aligned films of GO nanosheets that show record performances in some applications.
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Affiliation(s)
- Jing Zhong
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Wei Sun
- School of Civil Engineering, Harbin Institute of Technology, Harbin, 150090, China.,Key Lab of Structure Dynamic Behavior and Control (Harbin Institute of Technology), Ministry of Education, Harbin, 150090, China
| | - Qinwei Wei
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China.,School of Materials Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang, 110016, China
| | - Xitang Qian
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China.,School of Materials Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang, 110016, China
| | - Hui-Ming Cheng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China.,School of Materials Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang, 110016, China.,Tsinghua-Berkeley Shenzhen Institute (TBSI), Tsinghua University, 1001 Xueyuan Road, Shenzhen, 518055, China
| | - Wencai Ren
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China. .,School of Materials Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang, 110016, China.
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35
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Wan S, Fang S, Jiang L, Cheng Q, Baughman RH. Strong, Conductive, Foldable Graphene Sheets by Sequential Ionic and π Bridging. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1802733. [PMID: 30024065 DOI: 10.1002/adma.201802733] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Revised: 06/21/2018] [Indexed: 06/08/2023]
Abstract
The goal of this work is to develop an inexpensive low-temperature process that provides polymer-free, high-strength, high-toughness, electrically conducting sheets of reduced graphene oxide (rGO). To develop this process, we have evaluated the mechanical and electrical properties resulting from the application of an ionic bonding agent (Cr3+ ), a π-π bonding agent comprising pyrene end groups, and their combinations for enhancing the performance of rGO sheets. When only one bonding agent was used, the π-π bonding agent is much more effective than the ionic bonding agent for improving both the mechanical and electrical properties of rGO sheets. However, the successive application of ionic bonding and π-π bonding agents maximizes tensile strength, toughness, long-term electrical stability in various corrosive solutions, and resistance to mechanical abuse and ultrasonic dissolution. Using a combination of ionic bonding and π-π bonding agents, high tensile strength (821 MPa), high toughness (20 MJ m-3 ), and electrical conductivity (416 S cm-1 ) were obtained, as well as remarkable retention of mechanical and electrical properties during ultrasonication and mechanical cycling by both sheet stretch and sheet folding, suggesting high potential for applications in aerospace and flexible electronics.
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Affiliation(s)
- Sijie Wan
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
- Shen Yuan Honors College, Beihang University, Beijing, 100191, P. R. China
| | - Shaoli Fang
- Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Lei Jiang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Qunfeng Cheng
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Ray H Baughman
- Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX, 75080, USA
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36
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Qiu L, Li D, Cheng HM. Structural Control of Graphene-Based Materials for Unprecedented Performance. ACS NANO 2018; 12:5085-5092. [PMID: 29882663 DOI: 10.1021/acsnano.8b03792] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Recent research on engineering the structure of graphene-based materials has enabled a range of unprecedented properties. In this Perspective, we discuss how these rationally designed graphene-based materials possess exciting features as a result of engineering their structures, including structures of individual graphene sheets, interaction/spacing between sheets, and assembled structures. We also consider the challenges and future opportunities in the fundamental research and practical uses of designed graphene-based materials.
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Affiliation(s)
- Ling Qiu
- Shenzhen Geim Graphene Center (SGC) , Tsinghua-Berkeley Shenzhen Institute (TBSI), Tsinghua University , Shenzhen 518055 , China
| | - Dan Li
- Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Hui-Ming Cheng
- Shenzhen Geim Graphene Center (SGC) , Tsinghua-Berkeley Shenzhen Institute (TBSI), Tsinghua University , Shenzhen 518055 , China
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , Shenyang 110016 , China
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37
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Xi YH, Liu Z, Liao QC, Xie R, Ju XJ, Wang W, Faraj Y, Chu LY. Effect of Oxidized-Group-Supported Lamellar Distance on Stability of Graphene-Based Membranes in Aqueous Solutions. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01959] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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38
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Ji D, Choi S, Kim J. A Hydrogel-Film Casting to Fabricate Platelet-Reinforced Polymer Composite Films Exhibiting Superior Mechanical Properties. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1801042. [PMID: 29808527 DOI: 10.1002/smll.201801042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 04/21/2018] [Indexed: 05/23/2023]
Abstract
The fabrication of mechanically superior polymer composite films with controllable shapes on various scales is difficult. Despite recent research on polymer composites consisting of organic matrices and inorganic materials with layered structures, these films suffer from complex preparations and limited mechanical properties that do not have even integration of high strength, stiffness, and toughness. Herein, a hydrogel-film casting approach to achieve fabrication of simultaneously strong, stiff, and tough polymer composite films with well-defined microstructure, inspired from a layer-by-layer structure of nacre is reported. Ca2+ -crosslinked alginate hydrogels incorporated with platelet-like alumina particles are dried to form composite films composed of horizontally aligned alumina platelets and alginate matrix with uniformly layered microstructure. Alumina platelets are evenly distributed parallel without precipitations and contribute to synergistic enhancements of strength, stiffness and toughness in the resultant film. Consequentially, Ca2+ -crosslinked alginate/alumina (Ca2+ -Alg/Alu) films show exceptional tensile strength (267 MPa), modulus (17.9 GPa), and toughness (3.60 MJ m-3 ). Furthermore, the hydrogel-film casting allows facile preparation of polymer composite films with controllable shapes and various scales. The results suggest an alternative approach to design and prepare polymer composites with the layer-by-layer structure for superior mechanical properties.
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Affiliation(s)
- Donghwan Ji
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Suji Choi
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Jaeyun Kim
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Science and Technology (SAIHST), Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
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39
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Sequentially bridged graphene sheets with high strength, toughness, and electrical conductivity. Proc Natl Acad Sci U S A 2018; 115:5359-5364. [PMID: 29735659 PMCID: PMC6003513 DOI: 10.1073/pnas.1719111115] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
There is a continuing search for manufacturable sheets having high strength and toughness in all sheet directions for diverse applications, from airplanes to windmills. Cross-plied carbon fibers in a polymer resin requiring high-temperature cure presently provide the common solution. We demonstrate cross-linked graphene sheets that are manufacturable from graphene platelets, which are resin-free, processable at low temperature, contain less than 10 wt % additives, and provide high strength and record toughness in all in-plane directions. This advance results from successive use of π–π and covalent cross-linking agents. Simultaneous enhancement of strength, durability, and electrical conductivity are demonstrated. Spectroscopic measurements, including Raman studies of interplatelet stress transfer, elucidate the chemical nature and physical consequences of these dual cross-linking agents. We here show that infiltrated bridging agents can convert inexpensively fabricated graphene platelet sheets into high-performance materials, thereby avoiding the need for a polymer matrix. Two types of bridging agents were investigated for interconnecting graphene sheets, which attach to sheets by either π–π bonding or covalent bonding. When applied alone, the π–π bonding agent is most effective. However, successive application of the optimized ratio of π–π bonding and covalent bonding agents provides graphene sheets with the highest strength, toughness, fatigue resistance, electrical conductivity, electromagnetic interference shielding efficiency, and resistance to ultrasonic dissolution. Raman spectroscopy measurements of stress transfer to graphene platelets allow us to decipher the mechanisms of property improvement. In addition, the degree of orientation of graphene platelets increases with increasing effectiveness of the bonding agents, and the interlayer spacing increases. Compared with other materials that are strong in all directions within a sheet, the realized tensile strength (945 MPa) of the resin-free graphene platelet sheets was higher than for carbon nanotube or graphene platelet composites, and comparable to that of commercially available carbon fiber composites. The toughness of these composites, containing the combination of π–π bonding and covalent bonding, was much higher than for these other materials having high strengths for all in-plane directions, thereby opening the path to materials design of layered nanocomposites using multiple types of quantitatively engineered chemical bonds between nanoscale building blocks.
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Huang R, Huang M, Li X, An F, Koratkar N, Yu ZZ. Porous Graphene Films with Unprecedented Elastomeric Scaffold-Like Folding Behavior for Foldable Energy Storage Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1707025. [PMID: 29611242 DOI: 10.1002/adma.201707025] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/27/2018] [Indexed: 06/08/2023]
Abstract
The development of fully foldable energy storage devices is a major science and engineering challenge, but one that must be overcome if next-generation foldable or wearable electronic devices are to be realized. To overcome this challenge, it is necessary to develop new electrically conductive materials that exhibit superflexibility and can be folded or crumpled without plastic deformation or damage. Herein, a graphene film with engineered microvoids is prepared by reduction (under confinement) of its precursor graphene oxide film. The resultant porous graphene film can be single folded, double folded, and even crumpled, but springs back to its original shape without yielding or plastic deformation akin to an elastomeric scaffold after the applied stress is removed. Even after thermal annealing at ≈1300 °C, the folding performance of the porous graphene film is not compromised and the thermally annealed film exhibits complete foldability even in liquid nitrogen. A solid-state foldable supercapacitor is demonstrated with the porous graphene film as the device electrode. The capacitance performance is nearly identical after 2000 cycles of single-folding followed by another 2000 cycles of double folding.
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Affiliation(s)
- Ruling Huang
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing, 100029, China
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Meiling Huang
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xiaofeng Li
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Fei An
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Nikhil Koratkar
- Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY, 12180-3590, USA
| | - Zhong-Zhen Yu
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing, 100029, China
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
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41
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Wu M, Chen J, Wen Y, Chen H, Li Y, Li C, Shi G. Chemical Approach to Ultrastiff, Strong, and Environmentally Stable Graphene Films. ACS APPLIED MATERIALS & INTERFACES 2018; 10:5812-5818. [PMID: 29373015 DOI: 10.1021/acsami.7b18459] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Reduced graphene oxide (rGO) sheets prepared by a modified Hofmann method (Ho-rGO) have large graphitic domains with few structural defects, facilitating the dense packing between rGO sheets to enhance the mechanical performances of the resultant graphene films. Graphene films are fabricated by the filtration of the aqueous dispersions of Ho-rGO sheets and further treated by thermal annealing. They display high moduli (stiffness) of 54.6 ± 1.4 GPa and high tensile strengths of 521 ± 19 MPa. They also exhibit high toughness and good electrical properties. The intact structure of Ho-rGO sheets narrows the nanochannels in the film matrices, greatly reducing the water infiltration into films and providing the graphene films with excellent environmental stability. These graphene films are attractive for practical applications because of their light weights and ultrastiff and ultrastrong mechanical properties.
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Affiliation(s)
- Mingmao Wu
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University , Beijing 100084, China
| | - Ji Chen
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University , Beijing 100084, China
| | - Yeye Wen
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University , Beijing 100084, China
| | - Hongwu Chen
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University , Beijing 100084, China
| | - Yingru Li
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University , Beijing 100084, China
| | - Chun Li
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University , Beijing 100084, China
| | - Gaoquan Shi
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University , Beijing 100084, China
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43
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Cheng Q, Huang C, Tomsia AP. Freeze Casting for Assembling Bioinspired Structural Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1703155. [PMID: 28833681 DOI: 10.1002/adma.201703155] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/15/2017] [Indexed: 06/07/2023]
Abstract
Nature is very successful in designing strong and tough, lightweight materials. Examples include seashells, bone, teeth, fish scales, wood, bamboo, silk, and many others. A distinctive feature of all these materials is that their properties are far superior to those of their constituent phases. Many of these natural materials are lamellar or layered in nature. With its "brick and mortar" structure, nacre is an example of a layered material that exhibits extraordinary physical properties. Finding inspiration in living organisms to create bioinspired materials is the subject of intensive research. Several processing techniques have been proposed to design materials mimicking natural materials, such as layer-by-layer deposition, self-assembly, electrophoretic deposition, hydrogel casting, doctor blading, and many others. Freeze casting, also known as ice-templating, is a technique that has received considerable attention in recent years to produce bioinspired bulk materials. Here, recent advances in the freeze-casting technique are reviewed for fabricating lamellar scaffolds by assembling different dimensional building blocks, including nanoparticles, polymer chains, nanofibers, and nanosheets. These lamellar scaffolds are often infiltrated by a second phase, typically a soft polymer matrix, a hard ceramic matrix, or a metal matrix. The unique architecture of the resultant bioinspired structural materials displays excellent mechanical properties. The challenges of the current research in using the freeze-casting technique to create materials large enough to be useful are also discussed, and the technique's promise for fabricating high-performance nacre-inspired structural materials in the future is reviewed.
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Affiliation(s)
- Qunfeng Cheng
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Chuanjin Huang
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Antoni P Tomsia
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
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44
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Wen Y, Wu M, Zhang M, Li C, Shi G. Topological Design of Ultrastrong and Highly Conductive Graphene Films. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1702831. [PMID: 28892207 DOI: 10.1002/adma.201702831] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 07/27/2017] [Indexed: 06/07/2023]
Abstract
Nacre-like graphene films are prepared by evaporation-induced assembly of graphene oxide dispersions containing small amounts of cellulose nanocrystal (CNC), followed by chemical reduction with hydroiodic acid. CNC induces the formation of wrinkles on graphene sheets, greatly enhancing the mechanical properties of the resultant graphene films. The graphene films deliver an ultrahigh tensile strength of 765 ± 43 MPa (up to 800 MPa in some cases), a large failure strain of 6.22 ± 0.19%, and a superior toughness of 15.64 ± 2.20 MJ m-3 , as well as a high electrical conductivity of 1105 ± 17 S cm-1 . They have a great potential for applications in flexible electronics because of their combined excellent mechanical and electrical properties.
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Affiliation(s)
- Yeye Wen
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, China
| | - Mingmao Wu
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, China
| | - Miao Zhang
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, China
| | - Chun Li
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, China
| | - Gaoquan Shi
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, China
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Petersen SV, Qiu L, Li D. Controlled Gelation of Graphene Towards Unprecedented Superstructures. Chemistry 2017; 23:13264-13269. [PMID: 28714171 DOI: 10.1002/chem.201703121] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Indexed: 11/07/2022]
Abstract
Graphene exhibits a range of exceptional physical properties and holds great promise for development of novel bulk materials for widespread applications. Properly engineering of assembled structures of graphene at multiple length scales is essential to realize its full potential in bulk forms. In this Concept article, we highlight the unique colloidal and gelation behavior of a commonly used precursor for graphene, graphene oxide (GO), and discuss how the colloidal chemistry of GO and reduced GO can enable new scalable and cost-effective approaches to construct graphene-based soft superstructures with excellent properties.
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Affiliation(s)
- Søren Vermehren Petersen
- Department of Materials Science and Engineering, Monash Centre for Atomically Thin Materials, Monash University, Clayton, VIC, 3800, Australia.,Institute of Chemistry, Aarhus University, Langelandsgade 140, Aarhus C, Denmark
| | - Ling Qiu
- Department of Materials Science and Engineering, Monash Centre for Atomically Thin Materials, Monash University, Clayton, VIC, 3800, Australia
| | - Dan Li
- Department of Materials Science and Engineering, Monash Centre for Atomically Thin Materials, Monash University, Clayton, VIC, 3800, Australia.,Department of Chemical Engineering, University of Melbourne, Melbourne, VIC, 3010, Australia
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46
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Tian Q, Xu Z, Liu Y, Fang B, Peng L, Xi J, Li Z, Gao C. Dry spinning approach to continuous graphene fibers with high toughness. NANOSCALE 2017; 9:12335-12342. [PMID: 28825752 DOI: 10.1039/c7nr03895j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Graphene fiber (GF) has emerged as a new carbonaceous fiber species since graphene-based liquid crystals were discovered. The growing performances of GFs in terms of their mechanical performance and their functionalities have assured their extensive applications in structural materials and functional textiles. To date, many spinning strategies utilizing coagulation baths have been applied in GF, which necessitates a complicated washing process. Dry spinning is a more convenient and green method for use with fibers in the chemical fiber industry, and should be a good option for GFs; however, this technique has never been used in a system of GF. In this research, first the dry spinning technique was used to fabricate continuous GFs and the dry spun GFs showed good toughness and flexibility. The dry spinnability of graphene oxide liquid crystals was achieved by choosing dispersive solvents with low surface tension and high volatility. The dry spun neat GFs possessed high toughness up to 19.12 MJ m-3, outperforming the wet spun neat GFs. This dry spinning methodology facilitates the green fabrication of fibers of graphene and graphene-beyond two-dimensional nanomaterials, and it may also be extended to other printing technologies for complex graphene architectures.
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Affiliation(s)
- Qishi Tian
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, PR China.
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Xiao Y, Xu Z, Liu Y, Peng L, Xi J, Fang B, Guo F, Li P, Gao C. Sheet Collapsing Approach for Rubber-like Graphene Papers. ACS NANO 2017; 11:8092-8102. [PMID: 28777531 DOI: 10.1021/acsnano.7b02915] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Understanding and modulating the conformation of graphene are pivotal in designing graphene macroscopic materials. Here, we revealed the sheet collapsing behavior of graphene oxide (GO) sheets by poor solvents in an analogy with linear macromolecules. Triggered by poor solvents, extended GO sheets in good solvents can collapse to hierarchically wrinkled conformations. The collapsing behavior of GO enabled the fabrication of amorphous self-standing GO and graphene papers with rich hierarchical wrinkles and folds over mutliple size scales. The collapsed GO and graphene papers had a rubber-like mechanical behavior with viscoelasticity. By our collapsing method, GO and graphene self-standing papers were designed to be stiff with high modulus or to become soft with low modulus of 100 MPa at a remarkably large breakage elongation up to 23%. Our philosophy of treating graphene as a 2D polymer enables the efficient control of molecular conformations of graphene and other 2D polymers and the design of macroscopic materials of 2D nanomaterials as in the polymer industry.
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Affiliation(s)
- Youhua Xiao
- 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, People's Republic of China
| | - 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 , 38 Zheda Road, Hangzhou 310027, People's Republic of China
| | - Yingjun Liu
- 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, People's Republic of China
| | - Li Peng
- 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, People's Republic of China
| | - Jiabin Xi
- 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, People's Republic of China
| | - Bo Fang
- 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, People's Republic of China
| | - Fan Guo
- 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, People's Republic of China
| | - Peng Li
- 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, People's Republic of 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, People's Republic of China
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Gao E, Cao Y, Liu Y, Xu Z. Optimizing Interfacial Cross-Linking in Graphene-Derived Materials, Which Balances Intralayer and Interlayer Load Transfer. ACS APPLIED MATERIALS & INTERFACES 2017; 9:24830-24839. [PMID: 28677388 DOI: 10.1021/acsami.7b04411] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Graphene-derived layer-by-layer (LbL) assemblies in the form of films or fibers have recently attracted particular interests owing to their low cost, facile fabrication, and outstanding mechanical properties, which could be further tuned by surface functionalization that cross-links graphene sheets in the assembly. However, this interfacial engineering approach has not yet been finely utilized considering the dual roles of cross-links in modifying the intrinsic properties of graphene sheets and their interlayer interactions. In this work, combining first-principles calculations and continuum-mechanics-based model analysis, we find that the functionalization weakens the intrinsic mechanical resistance of graphene, whereas it enhances interlayer load transfer through interlayer cross-linking. There are optimum cross-linking densities or concentrations of the surface functional groups that maximize the overall tensile stiffness, tensile strength and strain to failure of graphene-derived LbL assemblies, arising from the competition between intralayer and interlayer load-bearing mechanisms, as defined by the type of functionalization and size of graphene sheets. Our work quantifies the ultimate mechanical performance of graphene-derived LbL assemblies, on the condition that their microstructures and functionalization could be adequately controlled in the fabrication process.
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Affiliation(s)
- Enlai Gao
- Applied Mechanics Laboratory, Department of Engineering Mechanics and Center for Nano and Micro Mechanics, Tsinghua University , Beijing 100084, China
| | - Yu Cao
- College of Chemistry, Nankai University , Tianjin 300071, China
| | - Yilun Liu
- State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace Engineering, Xi'an Jiaotong University , Xi'an 710049, China
| | - Zhiping Xu
- Applied Mechanics Laboratory, Department of Engineering Mechanics and Center for Nano and Micro Mechanics, Tsinghua University , Beijing 100084, China
- Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Engineering, Southwest Jiaotong University , Chengdu, Sichuan 610031, China
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49
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Qi Y, Bai J, Ding X, Zhang HM. Electrochemically Prepared Three-dimensional Porous Nitrogen-doped Graphene Modified Electrode for Non-enzymatic Detection of Hydrogen Peroxide. ELECTROANAL 2017. [DOI: 10.1002/elan.201700142] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yamin Qi
- School of Chemistry and Chemical Engineering; Beijing Institute of Technology; Beijing 100081 China
| | - Jie Bai
- Department of Chemical and Biochemical Engineering; College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 Fujian China
| | - Xiaoteng Ding
- School of Chemistry and Chemical Engineering; Beijing Institute of Technology; Beijing 100081 China
| | - Hui-Min Zhang
- School of Chemistry and Chemical Engineering; Beijing Institute of Technology; Beijing 100081 China
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Peng S, Feng P, Wu P, Huang W, Yang Y, Guo W, Gao C, Shuai C. Graphene oxide as an interface phase between polyetheretherketone and hydroxyapatite for tissue engineering scaffolds. Sci Rep 2017; 7:46604. [PMID: 28425470 PMCID: PMC5397874 DOI: 10.1038/srep46604] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 03/21/2017] [Indexed: 01/28/2023] Open
Abstract
The poor bonding strength between biopolymer and bioceramic has remained an unsolved issue. In this study, graphene oxide (GO) was introduced as an interface phase to improve the interfacial bonding between polyetheretherketone (PEEK) and hydroxyapatite (HAP) for tissue engineering scaffolds. On the one hand, the conjugated structure of GO could form strong π-π stacking interaction with the benzene rings in PEEK. On the other hand, GO with a negatively charge resulting from oxygen functional groups could adsorb the positively charged calcium atoms (C sites) of HAP. Consequently, the dispersibility and compatibility of HAP in the PEEK matrix increased with increasing GO content up to 1 wt%. At this time, the compressive strength and modulus of scaffolds increased by 79.45% and 42.07%, respectively. Furthermore, the PEEK-HAP with GO (PEEK-HAP/GO) scaffolds possessed the ability to induce formation of bone-like apatite. And they could support cellular adhesion, proliferation as well as osteogenic differentiation. More importantly, in vivo bone defect repair experiments showed that new bone formed throughout the scaffolds at 60 days after implantation. All these results suggested that the PEEK-HAP/GO scaffolds have a promising potential for bone tissue engineering application.
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Affiliation(s)
- Shuping Peng
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, 410008, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, 410078, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, 410078, China
| | - Pei Feng
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, 410083, China
| | - Ping Wu
- College of Chemistry, Xiangtan University, 411105, China
| | - Wei Huang
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, 410083, China
| | - Youwen Yang
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, 410083, China
| | - Wang Guo
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, 410083, China
| | - Chengde Gao
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, 410083, China
| | - Cijun Shuai
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, 410083, China.,State Key Laboratory for Powder Metallurgy, Central South University, 410083, China
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