101
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102
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Kabalci I, Koc E, Ozturk SS. Mechanical, Structural and Thermal Properties of Transparent Bi2O3–Al2O3–ZnO–TeO2 Glass System. J Inorg Organomet Polym Mater 2017. [DOI: 10.1007/s10904-017-0523-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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103
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Liang BL, Shu YQ, Yin PG, Guo L. Nacre-inspired polyglutamic acid/layered double hydroxide bionanocomposite film with high mechanical, translucence and UV-blocking properties. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-017-1924-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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104
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Cheng C, Li S, Thomas A, Kotov NA, Haag R. Functional Graphene Nanomaterials Based Architectures: Biointeractions, Fabrications, and Emerging Biological Applications. Chem Rev 2017; 117:1826-1914. [PMID: 28075573 DOI: 10.1021/acs.chemrev.6b00520] [Citation(s) in RCA: 257] [Impact Index Per Article: 36.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Functional graphene nanomaterials (FGNs) are fast emerging materials with extremely unique physical and chemical properties and physiological ability to interfere and/or interact with bioorganisms; as a result, FGNs present manifold possibilities for diverse biological applications. Beyond their use in drug/gene delivery, phototherapy, and bioimaging, recent studies have revealed that FGNs can significantly promote interfacial biointeractions, in particular, with proteins, mammalian cells/stem cells, and microbials. FGNs can adsorb and concentrate nutrition factors including proteins from physiological media. This accelerates the formation of extracellular matrix, which eventually promotes cell colonization by providing a more beneficial microenvironment for cell adhesion and growth. Furthermore, FGNs can also interact with cocultured cells by physical or chemical stimulation, which significantly mediate their cellular signaling and biological performance. In this review, we elucidate FGNs-bioorganism interactions and summarize recent advancements on designing FGN-based two-dimensional and three-dimensional architectures as multifunctional biological platforms. We have also discussed the representative biological applications regarding these FGN-based bioactive architectures. Furthermore, the future perspectives and emerging challenges will also be highlighted. Due to the lack of comprehensive reviews in this emerging field, this review may catch great interest and inspire many new opportunities across a broad range of disciplines.
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Affiliation(s)
- Chong Cheng
- Institute of Chemistry and Biochemistry, Freie Universität Berlin , Takustrasse 3, 14195 Berlin, Germany
| | - Shuang Li
- Department of Chemistry, Functional Materials, Technische Universität Berlin , Hardenbergstraße 40, 10623 Berlin, Germany
| | - Arne Thomas
- Department of Chemistry, Functional Materials, Technische Universität Berlin , Hardenbergstraße 40, 10623 Berlin, Germany
| | - Nicholas A Kotov
- Department of Chemical Engineering, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin , Takustrasse 3, 14195 Berlin, Germany
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105
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Gao Y, Jiao T, Ma K, Xing R, Zhang L, Zhou J, Peng Q. Variable self-assembly and in situ host–guest reaction of beta-cyclodextrin-modified graphene oxide composite Langmuir films with azobenzene compounds. RSC Adv 2017. [DOI: 10.1039/c7ra07109d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Different composite Langmuir films (GO–CD/N-Azo and GO–CD/PAA-Azo) are prepared via simple interfacial self-assembly process and host–guest reaction, demonstrating variable self-assembly for wide applications.
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Affiliation(s)
- Yagui Gao
- State Key Laboratory of Metastable Materials Science and Technology
- Yanshan University
- Qinhuangdao 066004
- P. R. China
- Hebei Key Laboratory of Applied Chemistry
| | - Tifeng Jiao
- State Key Laboratory of Metastable Materials Science and Technology
- Yanshan University
- Qinhuangdao 066004
- P. R. China
- Hebei Key Laboratory of Applied Chemistry
| | - Kai Ma
- Hebei Key Laboratory of Applied Chemistry
- School of Environmental and Chemical Engineering
- Yanshan University
- Qinhuangdao 066004
- P. R. China
| | - Ruirui Xing
- Hebei Key Laboratory of Applied Chemistry
- School of Environmental and Chemical Engineering
- Yanshan University
- Qinhuangdao 066004
- P. R. China
| | - Lexin Zhang
- Hebei Key Laboratory of Applied Chemistry
- School of Environmental and Chemical Engineering
- Yanshan University
- Qinhuangdao 066004
- P. R. China
| | - Jingxin Zhou
- Hebei Key Laboratory of Applied Chemistry
- School of Environmental and Chemical Engineering
- Yanshan University
- Qinhuangdao 066004
- P. R. China
| | - Qiuming Peng
- State Key Laboratory of Metastable Materials Science and Technology
- Yanshan University
- Qinhuangdao 066004
- P. R. China
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106
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Liu N, Hong J, Zeng X, Pidaparti R, Wang X. Fracture mechanisms in multilayer phosphorene assemblies: from brittle to ductile. Phys Chem Chem Phys 2017; 19:13083-13092. [DOI: 10.1039/c7cp01033h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper studies the transition of fracture patterns of multilayer phosphorene assemblies.
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Affiliation(s)
- Ning Liu
- College of Engineering
- University of Georgia
- Athens
- USA
| | - Jiawang Hong
- Department of Applied Mechanics
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Xiaowei Zeng
- Department of Mechanical Engineering
- University of Texas at San Antonio
- San Antonio
- USA
| | | | - Xianqiao Wang
- College of Engineering
- University of Georgia
- Athens
- USA
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107
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Gao W, Zhao N, Yao W, Xu Z, Bai H, Gao C. Effect of flake size on the mechanical properties of graphene aerogels prepared by freeze casting. RSC Adv 2017. [DOI: 10.1039/c7ra05557a] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Graphene flake size has a profound effect on the mechanical performance of the assembled graphene aerogels, particularly their strength, modulus and fatigue resistance under compression.
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Affiliation(s)
- Weiwei Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province
- Zhejiang University
- Hangzhou 310027
| | - Nifang Zhao
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Weiquan Yao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province
- Zhejiang University
- Hangzhou 310027
| | - Zhen Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province
- Zhejiang University
- Hangzhou 310027
| | - Hao Bai
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Chao Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province
- Zhejiang University
- Hangzhou 310027
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108
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Wang D, Xing W, Song L, Hu Y. Space-Confined Growth of Defect-Rich Molybdenum Disulfide Nanosheets Within Graphene: Application in The Removal of Smoke Particles and Toxic Volatiles. ACS APPLIED MATERIALS & INTERFACES 2016; 8:34735-34743. [PMID: 27998141 DOI: 10.1021/acsami.6b09548] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In this work, molybdenum disulfide/reduced graphene oxide (MoS2/RGO) hybrids are synthesized by a spatially confined reaction to insert the growth of defect-rich MoS2 nanosheets within graphene to enable incorporation into the polymer matrix for the application in the removal of smoke particles and toxic volatiles. The steady-state tube furnace result demonstrates that MoS2/RGO hybrid could considerably reduce the yield of CO and smoke particles. The TG-IR coupling technique was utilized to identify species of toxic volatiles including aromatic compounds, CO, and hydrocarbons and to investigate the removal effect of MoS2/RGO hybrids on reducing toxic volatiles. The removal of smoke particles and toxic volatiles was attributed to the adsorption capacity derived from edges sites of MoS2 and the honeycomb lattice of graphene, as well as the inhibition of nanobarrier resulting from two-dimensional structure. The work will offer a strategy for fabricating graphene-based hybrids by the space-confined synthesis and exploiting the application of space-confined graphene-based hybrid.
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Affiliation(s)
- Dong Wang
- State Key Laboratory of Fire Science, University of Science and Technology of China , 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Weiyi Xing
- State Key Laboratory of Fire Science, University of Science and Technology of China , 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Lei Song
- State Key Laboratory of Fire Science, University of Science and Technology of China , 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Yuan Hu
- State Key Laboratory of Fire Science, University of Science and Technology of China , 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
- USTC-CityU Joint Advanced Research Center, Suzhou Key Laboratory of Urban Public Safety, Suzhou Institute for Advanced Study, University of Science and Technology of China , Suzhou, Jiangsu 215123, P. R. China
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109
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Guner SNG, Dericioglu AF. Nacre-mimetic bulk lamellar composites reinforced with high aspect ratio glass flakes. BIOINSPIRATION & BIOMIMETICS 2016; 12:016002. [PMID: 27918290 DOI: 10.1088/1748-3190/12/1/016002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Nacre-mimetic epoxy matrix composites reinforced with readily available micron-sized high aspect ratio C-glass flakes were fabricated by a relatively simple, single-step, scalable, time, cost and man-power effective processing strategy: hot-press assisted slip casting (HASC). HASC enables the fabrication of preferentially oriented two-dimensional inorganic reinforcement-polymer matrix bulk lamellar composites with a micro-scale structure resembling the brick-and-mortar architecture of nacre. By applying the micro-scale design guideline found in nacre and optimizing the relative volume fractions of the reinforcement and the matrix as well as by anchoring the brick-and-mortar architecture, and tailoring the interface between reinforcements and the matrix via silane coupling agents, strong, stiff and tough bio-inspired nacre-mimetic bulk composites were fabricated. As a result of high shear stress transfer lengths and effective stress transfer at the interface achieved through surface functionalization of the reinforcements, fabricated bulk composites exhibited enhanced mechanical performance as compared to neat epoxy. Furthermore, governed flake pull-out mode along with a highly torturous crack path, which resulted from extensive deflection and meandering of the advancing crack around well-aligned high aspect ratio C-glass flakes, have led to high work-of-fracture values similar to nacre.
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Affiliation(s)
- Selen N Gurbuz Guner
- Department of Metallurgical and Materials Engineering, Middle East Technical University, Universiteler Mah. Dumlupinar Bulv., 06800 Ankara, Turkey
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110
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Liu N, Zeng X, Pidaparti R, Wang X. Tough and strong bioinspired nanocomposites with interfacial cross-links. NANOSCALE 2016; 8:18531-18540. [PMID: 27782267 DOI: 10.1039/c6nr06379a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Strength and toughness are two mechanical properties that are generally mutually exclusive but highly sought-after in the design of advanced composite materials. There has only been limited progress in achieving both high strength and toughness in composite materials. However, the fundamental underlying mechanics remain largely unexplored, especially at the nanoscale. Inspired by the lamellar structure of nacre, here a layered graphene and polyethylene nanocomposite with tunable interfacial cross-links is studied via coarse-grained molecular dynamics simulations in order to achieve both high strength and toughness. Our simulations indicate that, as the cross-link density increases from 0 to about 25%, strength and toughness of the nanocomposite experience a surprising 91% and 76% increase respectively. This strengthening mechanism can be well explained by the extent of increased nonbonded contacts between polymer chains (van der Waals interaction) during the stretch and exceptional stretchability of each polymer chain (dihedral interaction) due to interfacial cross-links by comparing nanocomposites with and without cross-links. As the strength of cross-links increases, both mechanical strength and toughness of graphene-based polymer nanocomposite increase as expected. This may be attributed to the intra-chain bond and angle interactions among polymer chains, which may be negligible for nanocomposites with weak cross-links but play a key role in enhancing both strength and toughness for nanocomposites with strong cross-links. Overall, our findings unveil the fundamental mechanism at the nanoscale for tough-and-strong polymer composites via interfacial cross-linking as well as offer a novel way to design bioinspired nanocomposites with targeted properties via tunable interfacial cross-linking.
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Affiliation(s)
- Ning Liu
- College of Engineering, University of Georgia, Athens, GA 30602, USA.
| | - Xiaowei Zeng
- Department of Mechanical Engineering, University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Ramana Pidaparti
- College of Engineering, University of Georgia, Athens, GA 30602, USA.
| | - Xianqiao Wang
- College of Engineering, University of Georgia, Athens, GA 30602, USA.
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111
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Samanta A, Liu Z, Nalluri SKM, Zhang Y, Schatz GC, Stoddart JF. Supramolecular Double-Helix Formation by Diastereoisomeric Conformations of Configurationally Enantiomeric Macrocycles. J Am Chem Soc 2016; 138:14469-14480. [PMID: 27709916 DOI: 10.1021/jacs.6b09258] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Solid-state superstructures, resulting from assemblies programmed by homochirality, are attracting considerable attention. In addition, artificial double-helical architectures are being investigated, especially in relation to the ways in which homochiral small molecules can be induced to yield helical forms as a result of chiral induction. Herein, we report the highly specific self-assembly upon crystallization of a double-helical superstructure from an enantiopure macrocyclic dimer which adopts two diastereoisomeric conformations in a molar ratio of 1.5:1 in dimethyl sulfoxide. These two conformational diastereoisomers self-organize-and self-sort-in the crystalline phase in equimolar proportions to form two single-handed helices which are complementary to each other, giving rise to the assembly of a double helix that is stabilized by intermolecular [C-H···O] and π-π stacking interactions. The observed self-sorting phenomenon occurs on going from a mixed-solvent system containing two equilibrating conformational diastereoisomers, presumably present in unequal molar proportions, into the solid state. The diastereoisomeric conformations are captured upon crystallization in a 1:1 molar ratio in the double-helical superstructure, whose handedness is dictated by the choice of the enantiomeric macrocyclic dimer. The interconversion of the two conformational diastereoisomers derived from each configurationally enantiomeric macrocycle was investigated in CD3SOCD3 solution by variable-temperature 1H NMR spectroscopy (VT NMR) and circular dichroism (VT CD). The merging of the resonances for the protons corresponding to the two diastereoisomers at a range of coalescence temperatures in the VT NMR spectra and occurrence of the isosbestic points in the VT CD spectra indicate that the two diastereoisomers are interconverting slowly in solution on the 1H NMR time scale but rapidly on the laboratory time scale. To the best of our knowledge, the self-assembly of such solid-state superstructures from two conformational diastereoisomers of a homochiral macrocycle is a rare, if not unique, occurrence.
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Affiliation(s)
- Avik Samanta
- Department of Chemistry, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Zhichang Liu
- Department of Chemistry, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Siva Krishna Mohan Nalluri
- Department of Chemistry, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Yu Zhang
- Department of Chemistry, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - George C Schatz
- Department of Chemistry, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - J Fraser Stoddart
- Department of Chemistry, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
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112
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Xie L, Xu H, Li LB, Hsiao BS, Zhong GJ, Li ZM. Biomimetic Nanofibrillation in Two-Component Biopolymer Blends with Structural Analogs to Spider Silk. Sci Rep 2016; 6:34572. [PMID: 27694989 PMCID: PMC5046138 DOI: 10.1038/srep34572] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 09/16/2016] [Indexed: 11/09/2022] Open
Abstract
Despite the enormous potential in bioinspired fabrication of high-strength structure by mimicking the spinning process of spider silk, currently accessible routes (e.g., microfluidic and electrospinning approaches) still have substantial function gaps in providing precision control over the nanofibrillar superstructure, crystalline morphology or molecular orientation. Here the concept of biomimetic nanofibrillation, by copying the spiders’ spinning principles, was conceived to build silk-mimicking hierarchies in two-phase biodegradable blends, strategically involving the stepwise integration of elongational shear and high-pressure shear. Phase separation confined on nanoscale, together with deformation of discrete phases and pre-alignment of polymer chains, was triggered in the elongational shear, conferring the readiness for direct nanofibrillation in the latter shearing stage. The orderly aligned nanofibrils, featuring an ultralow diameter of around 100 nm and the “rigid−soft” system crosslinked by nanocrystal domains like silk protein dopes, were secreted by fine nanochannels. The incorporation of multiscale silk-mimicking structures afforded exceptional combination of strength, ductility and toughness for the nanofibrillar polymer composites. The proposed spider spinning-mimicking strategy, offering the biomimetic function integration unattainable with current approaches, may prompt materials scientists to pursue biopolymer mimics of silk with high performance yet light weight.
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Affiliation(s)
- Lan Xie
- Department of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Huan Xu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Liang-Bin Li
- National Synchrotron Radiation Lab, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Benjamin S Hsiao
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Gan-Ji Zhong
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Zhong-Ming Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
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113
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Ruan Y, Ying Y, Guo Y, Zhou Z, Peng X. Mechanical enhancement of a nanoconfined-electrodeposited nacre-like Cu2O layered crystal/graphene oxide nanosheet composite thin film. RSC Adv 2016. [DOI: 10.1039/c6ra19355b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nacre-like Cu2O/GO composites were fabricated through a novel nanoconfined electrodeposition process, with enhanced hardness and Young’s modulus.
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Affiliation(s)
- Youyang Ruan
- State Key Laboratory of Silicon Materials
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou
- P. R. China
| | - Yulong Ying
- State Key Laboratory of Silicon Materials
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou
- P. R. China
| | - Yi Guo
- State Key Laboratory of Silicon Materials
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou
- P. R. China
| | - Zhanxin Zhou
- State Key Laboratory of Silicon Materials
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou
- P. R. China
| | - Xinsheng Peng
- State Key Laboratory of Silicon Materials
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou
- P. R. China
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