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Huan X, Li H, Song Y, Luo J, Liu C, Xu K, Geng H, Guo X, Chen C, Zu L, Jia X, Zhou J, Zhang H, Yang X. Charge Dynamics Engineering Sparks Hetero-Interfacial Polarization for an Ultra-Efficient Microwave Absorber with Mechanical Robustness. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306104. [PMID: 37775948 DOI: 10.1002/smll.202306104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/13/2023] [Indexed: 10/01/2023]
Abstract
Microwave absorbers with high efficiency and mechanical robustness are urgently desired to cope with more complex and harsh application scenarios. However, manipulating the trade-off between microwave absorption performance and mechanical properties is seldom realized in microwave absorbers. Here, a chemistry-tailored charge dynamic engineering strategy is proposed for sparking hetero-interfacial polarization and thus coordinating microwave attenuation ability with the interfacial bonding, endowing polymer-based composites with microwave absorption efficiency and mechanical toughness. The absorber designed by this new conceptual approach exhibits remarkable Ku-band microwave absorption efficiency (-55.3 dB at a thickness of 1.5 mm) and satisfactory effective absorption bandwidth (5.0 GHz) as well as desirable interfacial shear strength (97.5 MPa). The calculated differential charge density depicts the uneven distribution of space charge and the intense hetero-interfacial polarization, clarifying the structure-performance relationship from a theoretical perspective. This work breaks through traditional single performance-oriented design methods and ushers a new direction for next-generation microwave absorbers.
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Affiliation(s)
- Xianhua Huan
- School of Electrical Engineering and Automation, Hefei University of Technology, Hefei, 230009, P. R. China
- State Key Laboratory of Organic-Inorganic Composites, Key Laboratory of Carbon Fibre and Functional Polymer, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Hefeng Li
- State Key Laboratory of Organic-Inorganic Composites, Key Laboratory of Carbon Fibre and Functional Polymer, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yuxiao Song
- State Key Laboratory of Organic-Inorganic Composites, Key Laboratory of Carbon Fibre and Functional Polymer, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Jintao Luo
- Beijing Spacecraft Manufacturing Factory Co. Ltd., Beijing, 100094, P. R. China
| | - Cong Liu
- State Key Laboratory of Organic-Inorganic Composites, Key Laboratory of Carbon Fibre and Functional Polymer, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Ke Xu
- Inner Mongolia Aerospace Hong Gang Machinery Corporation Limited, Inner Mongolia, 010076, P. R. China
| | - Hongbo Geng
- Inner Mongolia Aerospace Hong Gang Machinery Corporation Limited, Inner Mongolia, 010076, P. R. China
| | - Xiaodong Guo
- Inner Mongolia Aerospace Hong Gang Machinery Corporation Limited, Inner Mongolia, 010076, P. R. China
| | - Chen Chen
- Xi'an Institute of Aerospace Propulsion Technology, Xi'an, 710025, P. R. China
- The 41st Institute of the Fourth Academy of CSAC National Key Lab of Combustion, Flow and Thermo-structure, Xi'an, 710025, P. R. China
| | - Lei Zu
- School of Mechanical Engineering, Hefei University of Technology, Hefei, 230000, P. R. China
| | - Xiaolong Jia
- State Key Laboratory of Organic-Inorganic Composites, Key Laboratory of Carbon Fibre and Functional Polymer, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Jisheng Zhou
- State Key Laboratory of Organic-Inorganic Composites, Key Laboratory of Carbon Fibre and Functional Polymer, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Haobin Zhang
- State Key Laboratory of Organic-Inorganic Composites, Key Laboratory of Carbon Fibre and Functional Polymer, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Xiaoping Yang
- State Key Laboratory of Organic-Inorganic Composites, Key Laboratory of Carbon Fibre and Functional Polymer, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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Shi P, Yao Y, Zhu Y, Yu X, Liu D, Yan C, Chen G. Atomistically informed hierarchical modeling for revisiting the constituent structures from heredity and nano-micro mechanics of sheath-core carbon fiber. Phys Chem Chem Phys 2024; 26:903-921. [PMID: 38088020 DOI: 10.1039/d3cp03114d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
To better understand the heterogeneous anisotropic nanocomposite features and provide reliable underlying constitutive parameters of carbon fiber for continuum-level simulations, hierarchical modeling approaches combining quantum chemistry, molecular dynamics, numerical and analytical micromechanics are employed for studying the structure-performance relationships of the precursor-inherited sheath-core carbon fiber layers. A robust debonding force field is derived from energy matching protocols, including bond dissociation enthalpy calculations and rigid-constraint potential energy surface scan. Logistic long range bond stretching curves with exponential parameters and shifted force vdW curves are designed to diminish energy perturbations. The pseudo-crystalline microstructure is proposed and validated using virtual wide angle X-ray diffraction patterns and bond-orientational order parameters. The distribution or alignment features of the nanocomposite microstructures are collected from quantum chemical topology analysis and normal vector extractions. Non-equilibrium tensile loading simulation predicts the decomposed strain energy contributions, principal-axis modulus, strength limit, localized stress, and fracture morphologies of the model. Finally, an atomistically-informed stiffness prediction model combining numerical homogenization and analytical self-consistent Eshelby-Mori-Tanaka-type effective mean field micromechanics theory is proposed, giving a successful estimation of the overall stiffness matrix of the sheath-core carbon fiber system. The hierarchical models in combination with the carbonization reaction template will help in providing efficient and feasible schemes for the synergistic process-performance control of distinct types of carbon fiber.
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Affiliation(s)
- Pengcheng Shi
- Zhejiang Provincial Key Laboratory of Robotics and Intelligent Manufacturing Equipment Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Youqiang Yao
- Zhejiang Provincial Key Laboratory of Robotics and Intelligent Manufacturing Equipment Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
| | - Yingdan Zhu
- Zhejiang Provincial Key Laboratory of Robotics and Intelligent Manufacturing Equipment Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaochen Yu
- Zhejiang Provincial Key Laboratory of Robotics and Intelligent Manufacturing Equipment Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
| | - Dong Liu
- Zhejiang Provincial Key Laboratory of Robotics and Intelligent Manufacturing Equipment Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
| | - Chun Yan
- Zhejiang Provincial Key Laboratory of Robotics and Intelligent Manufacturing Equipment Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
| | - Gang Chen
- Zhejiang Provincial Key Laboratory of Robotics and Intelligent Manufacturing Equipment Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
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Zhang L, Kowalik M, Mao Q, Damirchi B, Zhang Y, Bradford PD, Li Q, van Duin ACT, Zhu YT. Joint Theoretical and Experimental Study of Stress Graphitization in Aligned Carbon Nanotube/Carbon Matrix Composites. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37384459 DOI: 10.1021/acsami.3c03209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
Stress graphitization is a unique phenomenon at the carbon nanotube (CNT)-matrix interfaces in CNT/carbon matrix (CNT/C) composites. A lack of fundamental atomistic understanding of its evolution mechanisms and a gap between the theoretical and experimental research have hindered the pursuit of utilizing this phenomenon for producing ultrahigh-performance CNT/C composites. Here, we performed reactive molecular dynamics simulations along with an experimental study to explore stress graphitization mechanisms of a CNT/polyacrylonitrile (PAN)-based carbon matrix composite. Different CNT contents in the composite were considered, while the nanotube alignment was controlled in one direction in the simulations. We observe that the system with a higher CNT content exhibits higher localized stress concentration in the periphery of CNTs, causing alignment of the nitrile groups in the PAN matrix along the CNTs, which subsequently results in preferential dehydrogenation and clustering of carbon rings and eventually graphitization of the PAN matrix when carbonized at 1500 K. These simulation results have been validated by experimentally produced CNT/PAN-based carbon matrix composite films, with transmission electron microscopy images showing the formation of additional graphitic layers converted by the PAN matrix around CNTs, where 82 and 144% improvements of the tensile strength and Young's modulus are achieved, respectively. The presented atomistic details of stress graphitization can provide guidance for further optimizing CNT-matrix interfaces in a more predictive and controllable way for the development of novel CNT/C composites with high performance.
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Affiliation(s)
- Liwen Zhang
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, People's Republic of China
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Małgorzata Kowalik
- Department of Mechanical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Qian Mao
- Department of Mechanical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Behzad Damirchi
- Department of Mechanical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Yongyi Zhang
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, People's Republic of China
| | - Philip D Bradford
- Department of Textile Engineering Chemistry and Science, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Qingwen Li
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, People's Republic of China
| | - Adri C T van Duin
- Department of Mechanical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Yuntian T Zhu
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong 999077, People's Republic of China
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Ming X, Wei A, Liu Y, Peng L, Li P, Wang J, Liu S, Fang W, Wang Z, Peng H, Lin J, Huang H, Han Z, Luo S, Cao M, Wang B, Liu Z, Guo F, Xu Z, Gao C. 2D-Topology-Seeded Graphitization for Highly Thermally Conductive Carbon Fibers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2201867. [PMID: 35510758 DOI: 10.1002/adma.202201867] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 04/28/2022] [Indexed: 06/14/2023]
Abstract
Highly thermally conductive carbon fibers (CFs) have become an important material to meet the increasing demand for efficient heat dissipation. To date, high thermal conductivity has been only achieved in specific pitch-based CFs with high crystallinity. However, obtaining high graphitic crystallinity and high thermal conductivity beyond pitch-CFs remains a grand challenge. Here, a 2D-topology-seeded graphitization method is presented to mediate the topological incompatibility in graphitization by seeding 2D graphene oxide (GO) sheets into the polyacrylonitrile (PAN) precursor. Strong mechanical strength and high thermal conductivity up to 850 W m- 1 K-1 are simultaneously realized, which are one order of magnitude higher in conductivity than commercial PAN-based CFs. The self-oxidation and seeded graphitization effect generate large crystallite size and high orientation to far exceed those of conventional CFs. Topologically seeded graphitization, verified in experiments and simulations, allows conversion of the non-graphitizable into graphitizable materials by incorporating 2D seeds. This method extends the preparation of highly thermally conductive CFs, which has great potential for lightweight thermal-management materials.
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Affiliation(s)
- Xin Ming
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Anran Wei
- School of Naval Architecture, Ocean and Civil Engineering (State Key Laboratory of Ocean Engineering), Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yingjun Liu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, 030032, China
| | - Li Peng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Peng Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Jiaqing Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Senping Liu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Wenzhang Fang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Ziqiu Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Huanqin Peng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Jiahao Lin
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Haoguang Huang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Zhanpo Han
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Shiyu Luo
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Min Cao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Bo Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Zheng Liu
- Jiangsu Province Special Equipment Safety Supervision and Inspection Institute, National Graphene Products Quality Inspection and Testing Center, 330 Yanxi Road, Wuxi, 214174, China
| | - Fenglin Guo
- School of Naval Architecture, Ocean and Civil Engineering (State Key Laboratory of Ocean Engineering), Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Zhen Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Chao Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
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5
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Eom W, Lee SH, Shin H, Jeong W, Koh KH, Han TH. Microstructure-Controlled Polyacrylonitrile/Graphene Fibers over 1 Gigapascal Strength. ACS NANO 2021; 15:13055-13064. [PMID: 34291918 DOI: 10.1021/acsnano.1c02155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Controlling the microstructures in fibers, such as crystalline structures and microvoids, is a crucial challenge for the development of mechanically strong graphene fibers (GFs). To date, although GFs graphitized at high temperatures have exhibited high tensile strength, GFs still have limited the ultimate mechanical strength owing to the presence due to the structural defects, including the imperfect alignment of graphitic crystallites and the presence of microsized voids. In this study, we significantly enhanced the mechanical strength of GF by controlling microstructures of fibers. GF was hybridized by incorporating polyacrylonitrile (PAN) in the graphene oxide (GO) dope solution. In addition, we controlled the orientation of the inner structure by applying a tensile force at 800 °C. The results suggest that PAN can act as a binder for graphene sheets and can facilitate the rearrangement of the fiber's microstructure. PAN was directionally carbonized between graphene sheets due to the catalytic effect of graphene. The resulting hybrid GFs successfully displayed a high strength of 1.10 GPa without undergoing graphitization at extremely high temperatures. We believe that controlling the alignment of nanoassembled structure is an efficient strategy for achieving the inherent performance characteristics of graphene at the level of multidimensional structures including films and fibers.
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Affiliation(s)
- Wonsik Eom
- Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, Republic of Korea
- Research Institute of Industrial Science, Hanyang University, Seoul 04763, Republic of Korea
| | - Sang Hoon Lee
- Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Hwansoo Shin
- Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, Republic of Korea
- Human-Tech Convergence Program, Hanyang University, Seoul 04763, Republic of Korea
| | - Woojae Jeong
- Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, Republic of Korea
- Human-Tech Convergence Program, Hanyang University, Seoul 04763, Republic of Korea
| | - Ki Hwan Koh
- Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Tae Hee Han
- Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, Republic of Korea
- Research Institute of Industrial Science, Hanyang University, Seoul 04763, Republic of Korea
- Human-Tech Convergence Program, Hanyang University, Seoul 04763, Republic of Korea
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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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7
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Zhao X, Papageorgiou DG, Zhu L, Ding F, Young RJ. The strength of mechanically-exfoliated monolayer graphene deformed on a rigid polymer substrate. NANOSCALE 2019; 11:14339-14353. [PMID: 31328739 DOI: 10.1039/c9nr04720d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
The deformation and fracture behaviour of one-atom-thick mechanically exfoliated graphene has been studied in detail. Monolayer graphene flakes with different lengths, widths and shapes were successfully prepared by mechanical exfoliation and deposited onto poly(methyl methacrylate) (PMMA) beams. The fracture behaviour of the monolayer graphene was followed by deforming the PMMA beams. Through in situ Raman mapping at different strain levels, the distributions of strain over the graphene flakes were determined from the shift of the graphene Raman 2D band. The failure mechanisms of the exfoliated graphene were either by flake fracture or failure of the graphene/polymer interface. The fracture of the flakes was observed from the formation of cracks identified from the appearance of lines of zero strain in the strain contour maps. It was found that the strength of the monolayer graphene flakes decreased with increasing flake width. The strength dropped to less than ∼10 GPa for large flakes, thought to be due to the presence of defects. It is shown that a pair of topological defects in monolayer graphene will form a pseudo crack and the effect of such defects upon the strength of monolayer graphene has been modelled using molecular mechanical simulations.
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Affiliation(s)
- Xin Zhao
- National Graphene Institute and School of Materials, University of Manchester, Oxford Road, Manchester M13 9PL, UK.
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Yao Y, Jiang F, Yang C, Fu KK, Hayden J, Lin CF, Xie H, Jiao M, Yang C, Wang Y, He S, Xu F, Hitz E, Gao T, Dai J, Luo W, Rubloff G, Wang C, Hu L. Epitaxial Welding of Carbon Nanotube Networks for Aqueous Battery Current Collectors. ACS NANO 2018; 12:5266-5273. [PMID: 29757623 DOI: 10.1021/acsnano.7b08584] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Carbon nanomaterials are desirable candidates for lightweight, highly conductive, and corrosion-resistant current collectors. However, a key obstacle is their weak interconnection between adjacent nanostructures, which renders orders of magnitude lower electrical conductivity and mechanical strength in the bulk assemblies. Here we report an "epitaxial welding" strategy to engineer carbon nanotubes (CNTs) into highly crystalline and interconnected structures. Solution-based polyacrylonitrile was conformally coated on CNTs as "nanoglue" to physically join CNTs into a network, followed by a rapid high-temperature annealing (>2800 K, overall ∼30 min) to graphitize the polymer coating into crystalline layers that also bridge the adjacent CNTs to form an interconnected structure. The contact-welded CNTs (W-CNTs) exhibit both a high conductivity (∼1500 S/cm) and a high tensile strength (∼120 MPa), which are 5 and 20 times higher than the unwelded CNTs, respectively. In addition, the W-CNTs display chemical and electrochemical stabilities in strong acidic/alkaline electrolytes (>6 mol/L) when potentiostatically stressing at both cathodic and anodic potentials. With these exceptional properties, the W-CNT films are optimal as high-performance current collectors and were demonstrated in the state-of-the-art aqueous battery using a "water-in-salt" electrolyte.
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Affiliation(s)
- Yonggang Yao
- Department of Materials Science and Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Feng Jiang
- Department of Materials Science and Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Chongyin Yang
- Department of Chemical and Biomolecular Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Kun Kelvin Fu
- Department of Materials Science and Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - John Hayden
- Department of Materials Science and Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Chuan-Fu Lin
- Department of Materials Science and Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Hua Xie
- Department of Materials Science and Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Miaolun Jiao
- Department of Materials Science and Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Chunpeng Yang
- Department of Materials Science and Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Yilin Wang
- Department of Materials Science and Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Shuaiming He
- Department of Materials Science and Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Fujun Xu
- Department of Materials Science and Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Emily Hitz
- Department of Materials Science and Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Tingting Gao
- Department of Materials Science and Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Jiaqi Dai
- Department of Materials Science and Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Wei Luo
- Department of Materials Science and Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Gary Rubloff
- Department of Materials Science and Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Chunsheng Wang
- Department of Chemical and Biomolecular Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Liangbing Hu
- Department of Materials Science and Engineering , University of Maryland , College Park , Maryland 20742 , United States
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9
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Lou S, Liu Y, Yang F, Lin S, Zhang R, Deng Y, Wang M, Tom KB, Zhou F, Ding H, Bustillo KC, Wang X, Yan S, Scott M, Minor A, Yao J. Three-dimensional Architecture Enabled by Strained Two-dimensional Material Heterojunction. NANO LETTERS 2018; 18:1819-1825. [PMID: 29462550 DOI: 10.1021/acs.nanolett.7b05074] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Engineering the structure of materials endows them with novel physical properties across a wide range of length scales. With high in-plane stiffness and strength, but low flexural rigidity, two-dimensional (2D) materials are excellent building blocks for nanostructure engineering. They can be easily bent and folded to build three-dimensional (3D) architectures. Taking advantage of the large lattice mismatch between the constituents, we demonstrate a 3D heterogeneous architecture combining a basal Bi2Se3 nanoplate and wavelike Bi2Te3 edges buckling up and down forming periodic ripples. Unlike 2D heterostructures directly grown on substrates, the solution-based synthesis allows the heterostructures to be free from substrate influence during the formation process. The balance between bending and in-plane strain energies gives rise to controllable rippling of the material. Our experimental results show clear evidence that the wavelengths and amplitudes of the ripples are dependent on both the widths and thicknesses of the rippled material, matching well with continuum mechanics analysis. The rippled Bi2Se3/Bi2Te3 heterojunction broadens the horizon for the application of 2D materials heterojunction and the design and fabrication of 3D architectures based on them, which could provide a platform to enable nanoscale structure generation and associated photonic/electronic properties manipulation for optoelectronic and electromechanic applications.
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Affiliation(s)
- Shuai Lou
- Department of Materials Science and Engineering , University of California , Berkeley , California 94720 , United States
| | - Yin Liu
- Department of Materials Science and Engineering , University of California , Berkeley , California 94720 , United States
| | - Fuyi Yang
- Department of Materials Science and Engineering , University of California , Berkeley , California 94720 , United States
| | - Shuren Lin
- Department of Materials Science and Engineering , University of California , Berkeley , California 94720 , United States
| | - Ruopeng Zhang
- Department of Materials Science and Engineering , University of California , Berkeley , California 94720 , United States
- The National Center for Electron Microscopy, Molecular Foundry , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Yang Deng
- Department of Materials Science and Engineering , University of California , Berkeley , California 94720 , United States
| | - Michael Wang
- Department of Materials Science and Engineering , University of California , Berkeley , California 94720 , United States
| | - Kyle B Tom
- Department of Materials Science and Engineering , University of California , Berkeley , California 94720 , United States
- Materials Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Fei Zhou
- Department of Materials Science and Engineering , University of California , Berkeley , California 94720 , United States
| | - Hong Ding
- Materials Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Karen C Bustillo
- The National Center for Electron Microscopy, Molecular Foundry , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Xi Wang
- Department of Materials Science and Engineering , University of California , Berkeley , California 94720 , United States
| | - Shancheng Yan
- Department of Materials Science and Engineering , University of California , Berkeley , California 94720 , United States
| | - Mary Scott
- Department of Materials Science and Engineering , University of California , Berkeley , California 94720 , United States
- The National Center for Electron Microscopy, Molecular Foundry , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Andrew Minor
- Department of Materials Science and Engineering , University of California , Berkeley , California 94720 , United States
- The National Center for Electron Microscopy, Molecular Foundry , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Jie Yao
- Department of Materials Science and Engineering , University of California , Berkeley , California 94720 , United States
- Materials Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
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10
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Vetrik M, Parizek M, Hadraba D, Kukackova O, Brus J, Hlidkova H, Komankova L, Hodan J, Sedlacek O, Slouf M, Bacakova L, Hruby M. Porous Heat-Treated Polyacrylonitrile Scaffolds for Bone Tissue Engineering. ACS APPLIED MATERIALS & INTERFACES 2018; 10:8496-8506. [PMID: 29437373 DOI: 10.1021/acsami.7b18839] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Heat-treated polyacrylonitrile (HT-PAN), also referred to as black orlon (BO), is a promising carbon-based material used for applications in tissue engineering and regenerative medicine. To the best of our knowledge, no such complex bone morphology-mimicking three-dimensional (3D) BO structure has been reported to date. We report that BO can be easily made into 3D cryogel scaffolds with porous structures, using succinonitrile as a porogen. The cryogels possess a porous morphology, similar to bone tissue. The prepared scaffolds showed strong osteoconductive activity, providing excellent support for the adhesion, proliferation, and mitochondrial activity of human bone-derived cells. This effect was more apparent in scaffolds prepared from a matrix with a higher content of PAN (i.e., 10% rather than 5%). The scaffolds with 10% of PAN also showed enhanced mechanical properties, as revealed by higher compressive modulus and higher compressive strength. Therefore, these scaffolds have a robust potential for use in bone tissue engineering.
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Affiliation(s)
- Miroslav Vetrik
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences , Heyrovsky Sq. 2 , 162 06 Prague 6 , Czech Republic
| | - Martin Parizek
- Institute of Physiology of the Czech Academy of Sciences , Videnska 1083 , 14220 Prague 4 , Czech Republic
| | - Daniel Hadraba
- Institute of Physiology of the Czech Academy of Sciences , Videnska 1083 , 14220 Prague 4 , Czech Republic
| | - Olivia Kukackova
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences , Heyrovsky Sq. 2 , 162 06 Prague 6 , Czech Republic
| | - Jiri Brus
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences , Heyrovsky Sq. 2 , 162 06 Prague 6 , Czech Republic
| | - Helena Hlidkova
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences , Heyrovsky Sq. 2 , 162 06 Prague 6 , Czech Republic
| | - Lucie Komankova
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences , Heyrovsky Sq. 2 , 162 06 Prague 6 , Czech Republic
| | - Jiri Hodan
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences , Heyrovsky Sq. 2 , 162 06 Prague 6 , Czech Republic
| | - Ondrej Sedlacek
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences , Heyrovsky Sq. 2 , 162 06 Prague 6 , Czech Republic
| | - Miroslav Slouf
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences , Heyrovsky Sq. 2 , 162 06 Prague 6 , Czech Republic
| | - Lucie Bacakova
- Institute of Physiology of the Czech Academy of Sciences , Videnska 1083 , 14220 Prague 4 , Czech Republic
| | - Martin Hruby
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences , Heyrovsky Sq. 2 , 162 06 Prague 6 , Czech Republic
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11
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Desai S, Li C, Shen T, Strachan A. Molecular modeling of the microstructure evolution during carbon fiber processing. J Chem Phys 2017; 147:224705. [PMID: 29246038 DOI: 10.1063/1.5000911] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Saaketh Desai
- School of Materials Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47906, USA
| | - Chunyu Li
- School of Materials Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47906, USA
| | - Tongtong Shen
- School of Materials Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47906, USA
| | - Alejandro Strachan
- School of Materials Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47906, USA
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