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Liu W, Zheng X, Xu Q. Supercritical CO 2 Directional-Assisted Synthesis of Low-Dimensional Materials for Functional Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301097. [PMID: 37093220 DOI: 10.1002/smll.202301097] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/07/2023] [Indexed: 05/03/2023]
Abstract
Supercritical CO2 (SC CO2 ), as one of the unique fluids that possess fascinating properties of gas and liquid, holds great promise in chemical reactions and fabrication of materials. Building special nanostructures via SC CO2 for functional applications has been the focus of intense research for the past two decades, with facile regulated reaction conditions and a particular reaction field to operate compared to the more widely used solvent systems. In this review, the significance of SC CO2 on fabricating various functional materials including modification of 1D carbon nanotubes, 2D materials, and 2D heterostructures is stated. The fundamental aspects involving building special nanostructures via SC CO2 are explored: how their structure, morphology, and chemical composition be affected by the SC CO2 . Various optimization strategies are outlined to improve their performances, and recent advances are combined to present a coherent understanding of the mechanism of SC CO2 acting on these functional nanostructures. The wide applications of these special nanostructures in catalysis, biosensing, optoelectronics, microelectronics, and energy transformation are discussed. Moreover, the current status of SC CO2 research, the existing scientific issues, and application challenges, as well as the possible future directions to advance this fertile field are proposed in this review.
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Affiliation(s)
- Wei Liu
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Xiaoli Zheng
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Qun Xu
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450052, P. R. China
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
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2
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Li M, Xiao M, Wang Q, Zhang J, Xue X, Zhao J, Zhang W, Lu C. Mechanically Strong and Electrically Conductive Polyethylene Oxide/Few-Layer Graphene/Cellulose Nanofibrils Nanocomposite Films. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4152. [PMID: 36500775 PMCID: PMC9737188 DOI: 10.3390/nano12234152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
In this work, a cellulose nanofibrils (CNFs)/few-layer graphene (FLG) hybrid is mechanically stripped from bamboo pulp and expanded graphene (EG) using a grinder. This strategy is scalable and environmentally friendly for high-efficiency exfoliation and dispersion of graphene in an aqueous medium. The in situ-generated CNFs play a key role in this process, acting as a "green" dispersant. Next, the obtained CNFs-FLG is used as a functional filler in a polyoxyethylene (PEO) matrix. When the composition of CNFs-FLG is 50 wt.%, the resultant PEO/CNFs-FLG nanocomposite film exhibits a Young's modulus of 1.8 GPa and a tensile strength of 25.7 MPa, showing 480% and 260% enhancement as compared to those of the pure PEO film, respectively. Remarkably, the incorporation of CNFs-FLG also provides the nanocomposite films with a stunning electrical conductivity (72.6 S/m). These attractive features make PEO/CNFs-FLG nanocomposite films a promising candidate for future electronic devices.
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Affiliation(s)
- Mei Li
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China
| | - Meijie Xiao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China
| | - Qunhao Wang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China
| | - Jian Zhang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China
| | - Xiaolin Xue
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China
| | - Jiangqi Zhao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China
| | - Wei Zhang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China
- Advanced Polymer Materials Research Center of Sichuan University, Shishi 362700, China
| | - Canhui Lu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China
- Advanced Polymer Materials Research Center of Sichuan University, Shishi 362700, China
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3
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Jiang T, Maddalena L, Gomez J, Carosio F, Fina A. Polyelectrolytes Enabled Reduced Graphite Oxide Water Dispersions: Effects of the Structure, Molecular Weight, and Charge Density. Polymers (Basel) 2022; 14:polym14194165. [PMID: 36236113 PMCID: PMC9573485 DOI: 10.3390/polym14194165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 09/05/2022] [Accepted: 09/25/2022] [Indexed: 11/21/2022] Open
Abstract
The polyelectrolyte (PE)-based water dispersion of graphene-related materials (GRMs) represents an interesting intermediate for the development of advanced materials by sustainable processes. Although the proof of concept has been demonstrated, there is a lack of knowledge for what concerns the effects of parameters typical of PEs such as functionalization, molecular weight, and charge density. In this work, we evaluate the effects of such parameters on the quality and long-term stability of reduced graphite oxide (rGO) dispersion in aqueous media prepared by ultrasound sonication in the presence of different PEs. Four PEs were evaluated: polyacrylic acid (PAA), branched poly(ethylenimine) (BPEI), sodium carboxymethyl cellulose (CMC), and poly(sodium 4-styrenesulfonic acid) (PSS). The prepared dispersions were thoroughly characterized by means of UV-visible spectroscopy, thermogravimetric analysis, dynamic light scattering, and Raman spectroscopy. The highest concentrations of rGO were achieved by BPEI with a molecular weight of 25,000 and 270,000 Da (33 and 26 µg/mL, respectively). For other PEs, the rGO concentration was found to be independent of the molecular weight. The PAA-based dispersions displayed the best through-time stability while yielding homogeneous dispersion with a smaller average size and narrower size distribution.
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Affiliation(s)
- Tianhui Jiang
- Department of Applied Science and Technology, Politecnico di Torino, Alessandria Campus, V.le Teresa Michel 5, 15121 Alessandria, Italy
| | - Lorenza Maddalena
- Department of Applied Science and Technology, Politecnico di Torino, Alessandria Campus, V.le Teresa Michel 5, 15121 Alessandria, Italy
| | - Julio Gomez
- AVANZARE Innovacion Tecnologica S.L., 26370 Navarrete, La Rioja, Spain
| | - Federico Carosio
- Department of Applied Science and Technology, Politecnico di Torino, Alessandria Campus, V.le Teresa Michel 5, 15121 Alessandria, Italy
- Correspondence:
| | - Alberto Fina
- Department of Applied Science and Technology, Politecnico di Torino, Alessandria Campus, V.le Teresa Michel 5, 15121 Alessandria, Italy
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4
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Electrochemical Synthesis of Few Layer Graphene in Subcritical Electrolyte. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2022.105627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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In-situ food spoilage monitoring using a wireless chemical receptor-conjugated graphene electronic nose. Biosens Bioelectron 2021; 200:113908. [PMID: 34972042 DOI: 10.1016/j.bios.2021.113908] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 11/23/2021] [Accepted: 12/20/2021] [Indexed: 11/20/2022]
Abstract
Monitoring food spoilage is one of the most effective methods for preventing food poisoning caused by biogenic amines or microbes. Therefore, various analytical techniques have been introduced to detect low concentrations of cadaverine (CV) and putrescine (PT), which are representative biogenic polyamines involved in food spoilage (5-8 ppm at the stage of initial decomposition after storage for 5 days at 5 °C and 17-186 ppm at the stage of advanced decomposition after storage for 7 days at 5 °C). Although previous methods showed selective CV and PT detection even at low concentrations, the use of these methods remains challenging in research areas that require in-situ, real-time, on-site monitoring. In this study, we demonstrated for the first time an in-situ high-performance chemical receptor-conjugated graphene electronic nose (CRGE-nose) whose limits of detection (LODs), 27.04 and 7.29 ppb, for CV and PT are up to 102 times more sensitive than those of conventional biogenic amine sensors. Specifically, the novel chemical receptors 2,7-bis(3-morpholinopropyl)benzo[lmn][3,8] phenanthroline-1,3,6,8(2H,7H)-tetraone (NaPhdiMor (NPM)) and 2,7-bis(2-((3-morpholinopropyl)amino)ethyl)benzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone (NaPhdiEtAmMor (NPEAM)) were designed on the basis of density functional theory (DFT) calculations, and their interaction mechanism was characterized by a DFT 3D simulation. Interestingly, the CRGE-nose was connected on a micro sim chip substrate via wire bonding and then integrated into wireless portable devices, resulting in a cost-effective, high-performance prototype CRGE-nose device capable of on-site detection. The portable CRGE-nose can be used for in-situ monitoring of CV and PT concentration changes as low as 27.04 and 7.29 ppb in real meats such as pork, beef, lamb and chicken.
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6
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Wang QB, Yin JZ, Xu QQ, Zhi JT. Insightful Understanding of Shear-Assisted Supercritical CO 2 Exfoliation for Fabricating Graphene Nanosheets through the Combination of Kinetics and Process Parameters. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01744] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Qi-Bo Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Jian-Zhong Yin
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Qin-Qin Xu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Jia-Tao Zhi
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
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7
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Cai L, Hou S, Wei X, Tan G, Peng Z, Yan Y, Wang L, Lei D, Wu Y, Liu Z. Exfoliation and stabilization mechanism of graphene in carbon dioxide expanded organic solvents: molecular dynamics simulations. Phys Chem Chem Phys 2020; 22:2061-2072. [PMID: 31904067 DOI: 10.1039/c9cp05924e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
CO2 expanded organic solvents possess significant advantages in liquid-phase exfoliation to obtain monolayer/few-layer graphene from graphite. Further insights into the mechanism of graphene exfoliation in such solvents are essential to explore liquid-phase dispersion of graphene as a more potent alternative to chemical vapor deposition. In this study, dynamic processes of exfoliation and stabilization of graphene in CO2-N,N-dimethylformamide (DMF), CO2-N-methylpyrrolidone (NMP), CO2-dimethyl sulfoxide (DMSO), and CO2-ethanol (EtOH) were investigated using molecular dynamics simulations. The origin of the effect of each solvent on graphene exfoliation was analyzed quantitatively through potential mean force simulations. It has been found that the organic solvent in a CO2 expanded solvent should be chosen with proper surface tension, and there exist two different graphene exfoliation processes in the effective solvents, which can be described as "burger dissociation" and "extrusion-taking away" processes, respectively. In the former process, a characteristic "super-burger-like" conformation with a semi-exfoliated structure was formed, which was the deciding factor to obtain high ratio of monolayer/few-layer graphene in dispersion product. A theoretical explanation has also been provided at the molecular level to the earlier experimental phenomena. A predicted simulation of the CO2-3,3'-iminobis(N,N-dimethylpropylamine) (DMPA) system is also calculated. This investigation helps to avoid incompatible CO2 expanded organic solvents employed in the experimental studies and provides theoretical clues to understand the mechanism of exfoliation and stabilization of graphene in such solvents.
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Affiliation(s)
- Lu Cai
- School of Materials Science and Engineering, Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430205, Hubei, P. R. China.
| | - Sensheng Hou
- School of Materials Science and Engineering, Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430205, Hubei, P. R. China.
| | - Xiangyu Wei
- School of Materials Science and Engineering, Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430205, Hubei, P. R. China.
| | - Guangsu Tan
- School of Materials Science and Engineering, Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430205, Hubei, P. R. China.
| | - Zhengwei Peng
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Yujiao Yan
- School of Materials Science and Engineering, Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430205, Hubei, P. R. China.
| | - Lei Wang
- School of Materials Science and Engineering, Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430205, Hubei, P. R. China.
| | - De Lei
- School of Materials Science and Engineering, Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430205, Hubei, P. R. China.
| | - Yanguang Wu
- School of Materials Science and Engineering, Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430205, Hubei, P. R. China.
| | - Zhitian Liu
- School of Materials Science and Engineering, Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430205, Hubei, P. R. China.
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8
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Interfacial interaction and steric repulsion in polymer-assisted liquid exfoliation to produce high-quality graphene. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-00928-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Sun Z, Fan Q, Zhang M, Liu S, Tao H, Texter J. Supercritical Fluid-Facilitated Exfoliation and Processing of 2D Materials. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1901084. [PMID: 31572648 PMCID: PMC6760473 DOI: 10.1002/advs.201901084] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Indexed: 05/19/2023]
Abstract
Since the first intercalation of layered silicates by using supercritical CO2 as a processing medium, considerable efforts have been dedicated to intercalating and exfoliating layered two-dimensional (2D) materials in various supercritical fluids (SCFs) to yield single- and few-layer nanosheets. Here, recent work in this area is highlighted. Motivating factors for enhancing exfoliation efficiency and product quality in SCFs, mechanisms for exfoliation and dispersion in SCFs, as well as general metrics applied to assess quality and processability of exfoliated 2D materials are critically discussed. Further, advances in formation and application of 2D material-based composites with assistance from SCFs are presented. These discussions address chemical transformations accompanying SCF processing such as doping, covalent surface modification, and heterostructure formation. Promising features, challenges, and routes to expanding SCF processing techniques are described.
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Affiliation(s)
- Zhenyu Sun
- State Key Laboratory of Organic–Inorganic CompositesBeijing University of Chemical TechnologyBeijing100029P. R. China
| | - Qun Fan
- State Key Laboratory of Organic–Inorganic CompositesBeijing University of Chemical TechnologyBeijing100029P. R. China
| | - Mingli Zhang
- State Key Laboratory of Organic–Inorganic CompositesBeijing University of Chemical TechnologyBeijing100029P. R. China
| | - Shizhen Liu
- State Key Laboratory of Organic–Inorganic CompositesBeijing University of Chemical TechnologyBeijing100029P. R. China
| | - Hengcong Tao
- State Key Laboratory of Organic–Inorganic CompositesBeijing University of Chemical TechnologyBeijing100029P. R. China
| | - John Texter
- School of Engineering TechnologyEastern Michigan UniversityYpsilantiMI48197USA
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10
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Zhao J, Wen C, Sun R, Zhang SL, Wu B, Zhang ZB. A Sequential Process of Graphene Exfoliation and Site-Selective Copper/Graphene Metallization Enabled by Multifunctional 1-Pyrenebutyric Acid Tetrabutylammonium Salt. ACS APPLIED MATERIALS & INTERFACES 2019; 11:6448-6455. [PMID: 30656938 DOI: 10.1021/acsami.8b21162] [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
This paper reports a procedure leading to shear exfoliation of pristine few-layer graphene flakes in water and subsequent site-selective formation of Cu/graphene films on polymer substrates, both of which are enabled by employing the water soluble 1-pyrenebutyric acid tetrabutylammonium salt (PyB-TBA). The exfoliation with PyB-TBA as an enhancer leads to as-deposited graphene films dried at 90 °C that are characterized by electrical conductivity of ∼110 S/m. Owing to the good affinity of the tetrabutylammonium cations to the catalyst PdCl42-, electroless copper deposition selectively in the graphene films is initiated, resulting in a self-aligned formation of highly conductive Cu/graphene films at room temperature. The excellent solution-phase and low-temperature processability, self-aligned copper growth, and high electrical conductivity of the Cu/graphene films have permitted fabrication of several electronic circuits on plastic foils, thereby indicating their great potential in compliant, flexible, and printed electronics.
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Affiliation(s)
- Jie Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science , Northwest University , 710069 Xi'an , People's Republic of China
| | | | | | | | - Biao Wu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science , Northwest University , 710069 Xi'an , People's Republic of China
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11
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Gkermpoura SS, Papadimitriou KD, Skountzos EN, Polyzos I, Pastore Carbone MG, Kotrotsos A, Mavrantzas VG, Galiotis C, Tsitsilianis C. 3-Arm star pyrene-functional PMMAs for efficient exfoliation of graphite in chloroform: fabrication of graphene-reinforced fibrous veils. NANOSCALE 2019; 11:915-931. [PMID: 30298899 DOI: 10.1039/c8nr06888g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
3-Arm PMMAs end-functionalized by pyrene were designed as dispersing/stabilizing agents for the liquid-phase exfoliation of graphite in low-boiling point solvents like chloroform. The synthetic procedure comprised ARGET ATRP controlled polymerization, click chemistry and the quaternization reaction of triazole, ensuring tailor-made, well-defined pyrene-functional star PMMAs. Among a series of different pyrene-functional macromolecular topologies, the (PMMA-py2)3 proved the most efficient exfoliation agent giving relatively high graphene concentration (0.36 mg ml-1) at exceptionally low polymer/graphite mass ratio (mP/mGF = 0.003) and short sonication time (3 h). A 5-cycle iterative procedure relying on the redispersion of the sediment was developed yielding CG = 1.29 mg ml-1 with 14.8% exfoliation yield, under the favorable conditions of 10.5 h total shear mixing/tip sonication time and overall mP/mGF ratio as low as 0.15. In parallel, all-atom molecular dynamics simulations were conducted which helped understand the mechanism by which pyrene-functional macromolecular topologies act as efficient dispersing agents of graphene. Finally the G@(PMMA-Py)3 hybrids were well dispersed into the PMMA matrix by electrospinning to fabricate graphene-based nanocomposite fibrous veils. These graphene/polymer nanocomposites exhibited enhanced stiffness and strength by a factor of 4.4 with 1.5 wt% graphene hybrids as nanofillers.
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Affiliation(s)
- Sandra S Gkermpoura
- Department of Chemical Engineering, Universty of Patras, GR - 26504, Patras, Greece.
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12
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Water Dispersible Few-Layer Graphene Stabilized by a Novel Pyrene Derivative at Micromolar Concentration. NANOMATERIALS 2018; 8:nano8090675. [PMID: 30200191 PMCID: PMC6163987 DOI: 10.3390/nano8090675] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 08/22/2018] [Accepted: 08/27/2018] [Indexed: 11/19/2022]
Abstract
The search for graphene or few-layer graphene production methods that are simple, allow mass production, and yield good quality material continues to provoke intense investigation. The present work contributes to this investigation through the study of the aqueous exfoliation of four types of graphene sources, which are namely graphite and graphite nanoflakes with different morphologies and geographical origins. The exfoliation was achieved in an aqueous solution of a soluble pyrene derivative that was synthesized to achieve maximum interaction with the graphene surface at low concentration (5 × 10−5 M). The yield of bilayer and few-layer graphene obtained was quantified by Raman spectroscopic analysis, and the adsorption of the pyrene derivative on the graphene surface was studied by thermogravimetric analysis and X-ray diffraction. The whole procedure was rationalized with the help of molecular modeling.
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13
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Gai Y, Wang W, Xiao D, Tan H, Lin M, Zhao Y. Exfoliation of Graphite into Graphene by a Rotor–Stator in Supercritical CO2: Experiment and Simulation. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01726] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yanzhe Gai
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Wucong Wang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Ding Xiao
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Huijun Tan
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Minyan Lin
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Yaping Zhao
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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14
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A study on amphiphilic fluorinated block copolymer in graphite exfoliation using supercritical CO 2 for stable graphene dispersion. J Colloid Interface Sci 2018; 510:162-171. [PMID: 28942166 DOI: 10.1016/j.jcis.2017.09.065] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 09/11/2017] [Accepted: 09/15/2017] [Indexed: 11/24/2022]
Abstract
In this study, poly(2,2,2-trifluoroethyl methacrylate)-block-poly(4-vinylpyridine) (PTFEMA-b-PVP) was synthesized by stepwise reversible addition-fragmentation chain transfer (RAFT) polymerization for the preparation of graphene by the exfoliation of graphite nanoplatelets (GPs) in supercritical CO2 (SCCO2). Two different block copolymers (low and high molecular weights) were prepared with the same block ratio and used at different concentrations in the SCCO2 process. The amount of PTFEMA-b-PVP adsorbed on the GPs and the electrical conductivity of the SCCO2-treated GP samples were evaluated using thermogravimetric analysis (TGA) and four-point probe method, respectively. All GP samples treated with SCCO2 were then dispersed in methanol and the dispersion stability was investigated using online turbidity measurements. The concentration and morphology of few-layer graphene stabilized with PTFEMA-b-PVP in the supernatant solution were investigated by gravimetry, scanning electron microscopy, and Raman spectroscopy. Destabilization study of the graphene dispersions revealed that the longer block copolymer exhibited better affinity for graphene, resulting in a higher yield of stable graphene with minimal defects.
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15
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Choi HK, Oh Y, Jung H, Hong H, Ku BC, You NH, Kim YK, Shin ES, Yu J. Influences of carboxyl functionalization of intercalators on exfoliation of graphite oxide: a molecular dynamics simulation. Phys Chem Chem Phys 2018; 20:28616-28622. [DOI: 10.1039/c8cp05436c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, the influences of the carboxyl functionalization of intercalators on exfoliation of graphite oxide were analyzed using molecular dynamics (MD) simulations.
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Affiliation(s)
- Hoi Kil Choi
- Institute of Advanced Composite Materials
- Korea Institute of Science and Technology (KIST)
- Korea
- Department of Aerospace Engineering
- Chonbuk National University
| | - Yuna Oh
- Institute of Advanced Composite Materials
- Korea Institute of Science and Technology (KIST)
- Korea
| | - Hana Jung
- Institute of Advanced Composite Materials
- Korea Institute of Science and Technology (KIST)
- Korea
| | - Hyunkee Hong
- Institute of Advanced Composite Materials
- Korea Institute of Science and Technology (KIST)
- Korea
| | - Bon-Cheol Ku
- Institute of Advanced Composite Materials
- Korea Institute of Science and Technology (KIST)
- Korea
| | - Nam-Ho You
- Institute of Advanced Composite Materials
- Korea Institute of Science and Technology (KIST)
- Korea
| | - Young-Kwan Kim
- Institute of Advanced Composite Materials
- Korea Institute of Science and Technology (KIST)
- Korea
| | - Eui Sup Shin
- Department of Aerospace Engineering
- Chonbuk National University
- Jeonju
- Korea
| | - Jaesang Yu
- Institute of Advanced Composite Materials
- Korea Institute of Science and Technology (KIST)
- Korea
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16
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Chen Z, Miao H, Wu J, Tang Y, Yang W, Hou L, Yang F, Tian X, Zhang L, Li Y. Scalable Production of Hydrophilic Graphene Nanosheets via in Situ Ball-Milling-Assisted Supercritical CO2 Exfoliation. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b00594] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhuo Chen
- State Key Laboratory of Heavy
Oil Processing, China University of Petroleum, Changping, Beijing 102249, People’s Republic of China
| | - Huadi Miao
- State Key Laboratory of Heavy
Oil Processing, China University of Petroleum, Changping, Beijing 102249, People’s Republic of China
| | - Jiaye Wu
- State Key Laboratory of Heavy
Oil Processing, China University of Petroleum, Changping, Beijing 102249, People’s Republic of China
| | - Yushu Tang
- State Key Laboratory of Heavy
Oil Processing, China University of Petroleum, Changping, Beijing 102249, People’s Republic of China
| | - Wang Yang
- State Key Laboratory of Heavy
Oil Processing, China University of Petroleum, Changping, Beijing 102249, People’s Republic of China
| | - Liqiang Hou
- State Key Laboratory of Heavy
Oil Processing, China University of Petroleum, Changping, Beijing 102249, People’s Republic of China
| | - Fan Yang
- State Key Laboratory of Heavy
Oil Processing, China University of Petroleum, Changping, Beijing 102249, People’s Republic of China
| | - Xiaojuan Tian
- State Key Laboratory of Heavy
Oil Processing, China University of Petroleum, Changping, Beijing 102249, People’s Republic of China
| | - Liqiang Zhang
- State Key Laboratory of Heavy
Oil Processing, China University of Petroleum, Changping, Beijing 102249, People’s Republic of China
| | - Yongfeng Li
- State Key Laboratory of Heavy
Oil Processing, China University of Petroleum, Changping, Beijing 102249, People’s Republic of China
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17
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Sasikala SP, Poulin P, Aymonier C. Advances in Subcritical Hydro-/Solvothermal Processing of Graphene Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1605473. [PMID: 28244235 DOI: 10.1002/adma.201605473] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 11/28/2016] [Indexed: 05/27/2023]
Abstract
Many promising graphene-based materials are kept away from mainstream applications due to problems of scalability and environmental concerns in their processing. Hydro-/solvothermal techniques overwhelmingly satisfy both the aforementioned criteria, and have matured as alternatives to wet-chemical methods with advances made over the past few decades. The insolubility of graphene in many solvents poses considerable difficulties in their processing. In this context hydro-/solvothermal techniques present an ideal opportunity for processing of graphenic materials with their versatility in manipulating the physical and thermodynamic properties of the solvent. The flexibility in hydro-/solvothermal techniques for manipulation of solvent composition, temperature and pressure provides numerous handles to manipulate graphene-based materials during synthesis. This review provides a comprehensive look at the subcritical hydro-/solvothermal synthesis of graphene-based functional materials and their applications. Several key synthetic strategies governing the morphology and properties of the products such as temperature, pressure, and solvent effects are elaborated. Advances in the synthesis, doping, and functionalization of graphene in hydro-/solvothermal media are highlighted together with our perspectives in the field.
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Affiliation(s)
| | - Philippe Poulin
- CNRS, Univ. Bordeaux, CRPP, UPR8641, F-33600, Pessac, France
| | - Cyril Aymonier
- CNRS, Univ. Bordeaux, ICMCB, UPR9048, F-33600, Pessac, France
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18
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Xu X, Cai L, Zheng X, Xu Q. Molecular dynamics simulations of solvent-exfoliation and stabilization of graphene with the assistance of compressed carbon dioxide and pyrene–polyethylene glycol. Phys Chem Chem Phys 2017; 19:16062-16070. [DOI: 10.1039/c7cp01277b] [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]
Abstract
Understanding the solvent-exfoliation and stabilization of graphene with cpCO2and pyrene–polyethylene glycol from molecular dynamics simulations.
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Affiliation(s)
- Xiaodan Xu
- College of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450052
- P. R. China
| | - Lu Cai
- School of Materials Science and Engineering
- Wuhan Institute of Technology
- Wuhan 430073
- P. R. China
| | - Xiaoli Zheng
- College of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450052
- P. R. China
| | - Qun Xu
- College of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450052
- P. R. China
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19
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Mukawa K, Oyama N, Shinmi T, Sekine Y. Free-Surfactant Synthesis of Graphene-Layered Carbon Composite and Its Utilization for Electrocatalysis. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2016. [DOI: 10.1246/bcsj.20160137] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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20
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Padmajan Sasikala S, Poulin P, Aymonier C. Prospects of Supercritical Fluids in Realizing Graphene-Based Functional Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:2663-91. [PMID: 26879938 DOI: 10.1002/adma.201504436] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 10/21/2015] [Indexed: 05/08/2023]
Abstract
Supercritical-fluids science and technology predate all the approaches that are currently established for graphene production by several decades in advanced materials design. However, it has only recently been proposed as a plausible approach for graphene processing. Since then, supercritical fluids have emerged into contention as an alternative to existing technologies because of their scalability and versatility in processing graphene materials, which include composites, aerogels, and foams. Here, an overview is presented of such materials prepared through supercritical fluids from an advanced materials science standpoint, with a discussion on their fundamental properties and technological applications. The benefits of supercritical-fluid processing over conventional liquid-phase processing are presented. The benefits include not only better performances for advanced applications but also environmental issues associated with the synthesis process. Nevertheless, the limitations of supercritical-fluid processing are also stressed, along with challenges that are still faced toward the achievement of the great expectations from graphene materials.
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Affiliation(s)
| | - Philippe Poulin
- CNRS, University of Bordeaux, Centre de Recherche Paul Pascal (CRPP), UPR8641, F-33600, PESSAC, France
| | - Cyril Aymonier
- CNRS, University of Bordeaux, ICMCB, UPR 9048, F-33600, PESSAC, France
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21
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Papadimitriou KD, Skountzos EN, Gkermpoura SS, Polyzos I, Mavrantzas VG, Galiotis C, Tsitsilianis C. Molecular Modeling Combined with Advanced Chemistry for the Rational Design of Efficient Graphene Dispersing Agents. ACS Macro Lett 2016; 5:24-29. [PMID: 35668598 DOI: 10.1021/acsmacrolett.5b00755] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Pyrene-functional PMMAs were prepared via ATRP-controlled polymerization and click reaction, as efficient dispersing agents for the exfoliation of few-layered graphene sheets (GS) in easily processable low boiling point chloroform. In parallel, detailed atomistic simulations showed fine dispersion of the GS/polymer hybrids in good agreement with the experiment. Moreover, the molecular dynamics simulations revealed interesting conformations (bridges, loops, dangling ends, free chains) of GS/polymer hybrids and allowed us to monitor their time evolution both in solution and in the polymer nanocomposite where the solvent molecules were replaced with PMMA chains. Microscopic information about these structures is very important for optimizing mechanical performance. It seems that the combination of atomistic simulation with advanced chemistry constitutes a powerful tool for the design of effective graphene dispersing agents that could be used for the production of graphene-based nanocomposites with tailor-made mechanical properties.
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Affiliation(s)
- Konstantinia D. Papadimitriou
- Foundation
of Research and Technology Hellas, Institute of Chemical Engineering Sciences (FORTH/ICE-HT), Stadiou Str., P.O. Box 1414, GR 26504, Rio-Patras, Greece
- Department
of Chemical Engineering, University of Patras, GR 26504, Patras, Greece
| | - Emmanuel N. Skountzos
- Foundation
of Research and Technology Hellas, Institute of Chemical Engineering Sciences (FORTH/ICE-HT), Stadiou Str., P.O. Box 1414, GR 26504, Rio-Patras, Greece
- Department
of Chemical Engineering, University of Patras, GR 26504, Patras, Greece
| | - Sandra S. Gkermpoura
- Foundation
of Research and Technology Hellas, Institute of Chemical Engineering Sciences (FORTH/ICE-HT), Stadiou Str., P.O. Box 1414, GR 26504, Rio-Patras, Greece
- Department
of Chemical Engineering, University of Patras, GR 26504, Patras, Greece
| | - Ioannis Polyzos
- Foundation
of Research and Technology Hellas, Institute of Chemical Engineering Sciences (FORTH/ICE-HT), Stadiou Str., P.O. Box 1414, GR 26504, Rio-Patras, Greece
| | - Vlasis G. Mavrantzas
- Foundation
of Research and Technology Hellas, Institute of Chemical Engineering Sciences (FORTH/ICE-HT), Stadiou Str., P.O. Box 1414, GR 26504, Rio-Patras, Greece
- Department
of Chemical Engineering, University of Patras, GR 26504, Patras, Greece
- Particle
Technology Laboratory, Department of Mechanical and Process Engineering, ETH-Z, CH-8093 Zürich, Switzerland
| | - Costas Galiotis
- Foundation
of Research and Technology Hellas, Institute of Chemical Engineering Sciences (FORTH/ICE-HT), Stadiou Str., P.O. Box 1414, GR 26504, Rio-Patras, Greece
- Department
of Chemical Engineering, University of Patras, GR 26504, Patras, Greece
| | - Constantinos Tsitsilianis
- Foundation
of Research and Technology Hellas, Institute of Chemical Engineering Sciences (FORTH/ICE-HT), Stadiou Str., P.O. Box 1414, GR 26504, Rio-Patras, Greece
- Department
of Chemical Engineering, University of Patras, GR 26504, Patras, Greece
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22
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Yi M, Shen Z. Fluid dynamics: an emerging route for the scalable production of graphene in the last five years. RSC Adv 2016. [DOI: 10.1039/c6ra15269d] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Fluid dynamics emerging as a promising scalable and efficient way for graphene production is highlighted, with the emphasis set on vortex fluidic devices and pressure- and mixer-driven fluid dynamics and the perspectives on the open key issues.
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Affiliation(s)
- Min Yi
- Institute of Materials Science
- Technische Universität Darmstadt
- Darmstadt 64287
- Germany
| | - Zhigang Shen
- Beijing Key Laboratory for Powder Technology Research and Development
- Beihang University (BUAA)
- Beijing 100191
- China
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23
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Abstract
The process of SCFs intercalation and exfoliation method is decomposed into three stages: pretreatment of graphite chunk, intercalation and exfoliation. The mechanisms and influence factors for each stage are analyzed in this review.
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Affiliation(s)
- Hanyang Gao
- School of Mechanical and Power Engineering
- Shanghai Jiao Tong University
- 200240 Shanghai
- China
| | - Guoxin Hu
- School of Mechanical and Power Engineering
- Shanghai Jiao Tong University
- 200240 Shanghai
- China
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24
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Narayan R, Kim SO. Surfactant mediated liquid phase exfoliation of graphene. NANO CONVERGENCE 2015; 2:20. [PMID: 28191406 PMCID: PMC5270964 DOI: 10.1186/s40580-015-0050-x] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 05/18/2015] [Indexed: 05/27/2023]
Abstract
Commercialization of graphene based applications inevitably requires cost effective mass production. From the early days of research on graphene, direct liquid phase exfoliation (LPE) of graphite has been considered as the most promising strategy to produce high-quality mono or few-layer graphene sheets in solvent dispersion forms. Substantial success has been achieved thus far in the LPE of graphene employing numerous solvent systems and suitable surfactants. This invited review article principally showcase the recent research progress as well as shortcomings of surfactant assisted LPE of graphene. In particular, a comprehensive assessment of the quality and yield of the graphene sheets produced by different categories of the surfactants are summarized. Future direction of LPE methods is also proposed for the eventual success of commercial applications.
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Affiliation(s)
- Rekha Narayan
- Department of Materials Science & Engineering, KAIST, Daejeon, 305-701 Republic of Korea
| | - Sang Ouk Kim
- Department of Materials Science & Engineering, KAIST, Daejeon, 305-701 Republic of Korea
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26
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Meng J, Tajaddod N, Cranford SW, Minus ML. Polyethylene-Assisted Exfoliation of Hexagonal Boron Nitride in Composite Fibers: A Combined Experimental and Computational Study. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201400585] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jiangsha Meng
- Department of Mechanical and Industrial Engineering; Northeastern University; 02115 Boston MA USA
| | - Navid Tajaddod
- Department of Mechanical and Industrial Engineering; Northeastern University; 02115 Boston MA USA
| | - Steven W. Cranford
- Department of Civil and Environmental Engineering; Northeastern University; 02115 Boston MA USA
| | - Marilyn L. Minus
- Department of Mechanical and Industrial Engineering; Northeastern University; 02115 Boston MA USA
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27
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Uysal Unalan I, Wan C, Trabattoni S, Piergiovanni L, Farris S. Polysaccharide-assisted rapid exfoliation of graphite platelets into high quality water-dispersible graphene sheets. RSC Adv 2015. [DOI: 10.1039/c4ra16947f] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
High quality graphene has been obtained by polysaccharide-assisted ultrasonication in aqueous medium. This approach provides an economical, solvent-free, high-yield, and industrially scalable route for new applications of graphene-based nanocomposites.
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Affiliation(s)
- Ilke Uysal Unalan
- DeFENS
- Department of Food
- Environmental and Nutritional Sciences—Packaging Division
- University of Milan
- 20133 Milan
| | - Chaoying Wan
- International Institute for Nanocomposites Manufacturing
- WMG
- University of Warwick
- Coventry CV4 7AL
- UK
| | - Silvia Trabattoni
- Department of Materials Science
- University of Milano Bicocca
- 20125 Milan
- Italy
| | - Luciano Piergiovanni
- DeFENS
- Department of Food
- Environmental and Nutritional Sciences—Packaging Division
- University of Milan
- 20133 Milan
| | - Stefano Farris
- DeFENS
- Department of Food
- Environmental and Nutritional Sciences—Packaging Division
- University of Milan
- 20133 Milan
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28
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Uysal Unalan I, Cerri G, Marcuzzo E, Cozzolino CA, Farris S. Nanocomposite films and coatings using inorganic nanobuilding blocks (NBB): current applications and future opportunities in the food packaging sector. RSC Adv 2014. [DOI: 10.1039/c4ra01778a] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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