1
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Garrido M, Criado A, Prato M. Simultaneous exfoliation and functionalization of MoS 2 with tetrapyridyl porphyrin. NANOSCALE 2024. [PMID: 38946392 DOI: 10.1039/d4nr01802h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Molybdenum disulfide (MoS2) attracts the attention of the scientific community due to its thickness dependent properties. To fully exploit these features, it is necessary to produce the material in mono or few-layers on a large scale. Several methodologies have been developed for this purpose, the most promising one being liquid phase exfoliation (LPE). LPE allows obtaining good quality exfoliated MoS2 in a simple and scalable manner. Herein we report the simultaneous exfoliation and functionalization of MoS2 in chloroform using a specific porphyrin, namely tetrapyridyl porphyrin. We have corroborated that the exfoliation of MoS2 in the volatile solvent increases in the presence of the porphyrin due to the different interactions between them, obtaining dispersions with good concentrations. Additionally, the optical properties of the porphyrin are modified by these interactions. The characterization carried out by several techniques supports the hypothesis that the interactions occur through the pyridyl rings of the porphyrin and the molybdenum atoms of the material.
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Affiliation(s)
- Marina Garrido
- Department of Chemical and Pharmaceutical Sciences, Università degli Studi di Trieste, Via Licio Giorgieri 1, Trieste 34127, Italy.
| | - Alejandro Criado
- Universidade da Coruña, CICA - Centro Interdisciplinar de Química e Bioloxía, Rúa as Carballeiras, 15071 A Coruña, Spain.
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences, Università degli Studi di Trieste, Via Licio Giorgieri 1, Trieste 34127, Italy.
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, Donostia-San Sebastián 20014, Spain.
- Ikerbasque, Basque Foundation for Science, Bilbao 48013, Spain
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2
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Feng Y, Khalid M, Xiao H, Hu P. Two-dimensional material assisted-growth strategy: new insights and opportunities. NANOTECHNOLOGY 2024; 35:322001. [PMID: 38688246 DOI: 10.1088/1361-6528/ad4553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 04/30/2024] [Indexed: 05/02/2024]
Abstract
The exploration and synthesis of novel materials are integral to scientific and technological progress. Since the prediction and synthesis of two-dimensional (2D) materials, it is expected to play an important role in the application of industrialization and the information age, resulting from its excellent physical and chemical properties. Currently, researchers have effectively utilized a range of material synthesis techniques, including mechanical exfoliation, redox reactions, chemical vapor deposition, and chemical vapor transport, to fabricate two-dimensional materials. However, despite their rapid development, the widespread industrial application of 2D materials faces challenges due to demanding synthesis requirements and high costs. To address these challenges, assisted growth techniques such as salt-assisted, gas-assisted, organic-assisted, and template-assisted growth have emerged as promising approaches. Herein, this study gives a summary of important developments in recent years in the assisted growth synthesis of 2D materials. Additionally, it highlights the current difficulties and possible benefits of the assisted-growth approach for 2D materials. It also highlights novel avenues of development and presents opportunities for new lines of investigation.
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Affiliation(s)
- Yuming Feng
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150080, People's Republic of China
| | - Mansoor Khalid
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150080, People's Republic of China
| | - Haiying Xiao
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150080, People's Republic of China
| | - PingAn Hu
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150080, People's Republic of China
- Key Lab of Microsystem and Microstructure of Ministry of Education, Harbin Institute of Technology, Harbin 150080, People's Republic of China
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3
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Meng Y, Yang D, Jiang X, Bando Y, Wang X. Thermal Conductivity Enhancement of Polymeric Composites Using Hexagonal Boron Nitride: Design Strategies and Challenges. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:331. [PMID: 38392704 PMCID: PMC10893155 DOI: 10.3390/nano14040331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/24/2024]
Abstract
With the integration and miniaturization of chips, there is an increasing demand for improved heat dissipation. However, the low thermal conductivity (TC) of polymers, which are commonly used in chip packaging, has seriously limited the development of chips. To address this limitation, researchers have recently shown considerable interest in incorporating high-TC fillers into polymers to fabricate thermally conductive composites. Hexagonal boron nitride (h-BN) has emerged as a promising filler candidate due to its high-TC and excellent electrical insulation. This review comprehensively outlines the design strategies for using h-BN as a high-TC filler and covers intrinsic TC and morphology effects, functionalization methods, and the construction of three-dimensional (3D) thermal conduction networks. Additionally, it introduces some experimental TC measurement techniques of composites and theoretical computational simulations for composite design. Finally, the review summarizes some effective strategies and possible challenges for the design of h-BN fillers. This review provides researchers in the field of thermally conductive polymeric composites with a comprehensive understanding of thermal conduction and constructive guidance on h-BN design.
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Affiliation(s)
- Yuhang Meng
- National Laboratory of Solid State Microstructures (NLSSM), Collaborative Innovation Center of Advanced Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
| | - Dehong Yang
- National Laboratory of Solid State Microstructures (NLSSM), Collaborative Innovation Center of Advanced Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
| | - Xiangfen Jiang
- State Key Laboratory of Mechanics and Control of Mechanical Structures, Key Laboratory for Intelligent Nano Materials and Devices of the Ministry of Education, College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Yoshio Bando
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
- Australian Institute for Innovative Materials, University of Wollongong, Wollongong, NSW 2500, Australia
| | - Xuebin Wang
- National Laboratory of Solid State Microstructures (NLSSM), Collaborative Innovation Center of Advanced Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
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4
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Chen Y, Liu Y, Liu X, Li P, Li Z, Jiang P, Huang X. On-Demand Preparation of Boron Nitride Nanosheets for Functional Nanocomposites. SMALL METHODS 2024:e2301386. [PMID: 38236164 DOI: 10.1002/smtd.202301386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/04/2024] [Indexed: 01/19/2024]
Abstract
Boron nitride nanosheets (BNNSs) have garnered significant attention across diverse fields; however, accomplishing on-demand, large-scale, and highly efficient preparation of BNNSs remains a challenge. Here, an on-demand preparation (OdP) method combining high-pressure homogenization and short-time ultrasonication is presented; it enables a highly efficient and controllable preparation of BNNSs from bulk hexagonal boron nitride (h-BN). The homogenization pressure and number of cycles are adjusted, and the production efficiency and yield of BNNSs reach 0.95 g g-1 h-1 and 82.8%, respectively, which significantly exceed those attained by using existing methods. The universality of the OdP method is demonstrated on h-BN raw materials of various bulk sizes from various producers. Furthermore, this method allows the preparation of BNNSs having specific sizes based on the final requirements. Both simulation and experimental results indicate that large BNNSs are particularly suitable for enhancing the thermal conductivity and electrical insulation properties of dielectric polymer nanocomposites. Interestingly, the small BNNS-filled photonic nanocomposite films fabricated via the OdP method exhibit superior daytime radiative cooling properties. Additionally, the OdP method offers the benefits of low energy consumption and reduced greenhouse gas emissions and fossil energy use. These findings underscore the unique advantages of the OdP method over other techniques for a high-efficiency and controllable preparation of large BNNSs.
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Affiliation(s)
- Yu Chen
- Department of Polymer Science and Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yijie Liu
- Department of Polymer Science and Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xiangyu Liu
- Department of Polymer Science and Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Pengli Li
- Department of Polymer Science and Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Zhe Li
- Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Pingkai Jiang
- Department of Polymer Science and Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xingyi Huang
- Department of Polymer Science and Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, Shanghai, 200240, China
- Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
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Ren H, Lan M. Progress and Prospects in Metallic Fe xGeTe 2 (3 ≤ x ≤ 7) Ferromagnets. Molecules 2023; 28:7244. [PMID: 37959664 PMCID: PMC10649090 DOI: 10.3390/molecules28217244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/05/2023] [Accepted: 10/21/2023] [Indexed: 11/15/2023] Open
Abstract
Thermal fluctuations in two-dimensional (2D) isotropy systems at non-zero finite temperatures can destroy the long-range (LR) magnetic order due to the mechanisms addressed in the Mermin-Wanger theory. However, the magnetic anisotropy related to spin-orbit coupling (SOC) may stabilize magnetic order in 2D systems. Very recently, 2D FexGeTe2 (3 ≤ x ≤ 7) with a high Curie temperature (TC) has not only undergone significant developments in terms of synthetic methods and the control of ferromagnetism (FM), but is also being actively explored for applications in various devices. In this review, we introduce six experimental methods, ten ferromagnetic modulation strategies, and four spintronic devices for 2D FexGeTe2 materials. In summary, we outline the challenges and potential research directions in this field.
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Affiliation(s)
- Hongtao Ren
- School of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Mu Lan
- College of Optoelectronic Engineering, Chengdu University of Information Technology, Chengdu 610225, China
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Zhang N, Shi R, Zhou M, Wang P, Yu Y, Wang Q. Amyloid-like protein bridged nano-materials and fabrics for preparing rapid and long lasting antibacterial, UV-resistant and personal thermal management textiles. Int J Biol Macromol 2023; 247:125699. [PMID: 37414308 DOI: 10.1016/j.ijbiomac.2023.125699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 06/30/2023] [Accepted: 07/03/2023] [Indexed: 07/08/2023]
Abstract
Textiles with efficient and long-lasting antibacterial properties have attracted significant attention. However, a single antibacterial model is insufficient to with variable environments and achieve higher antibacterial activity. In this study, lysozyme was used as assistant and stabilizer, and the efficient peeling and functional modification of molybdenum disulfide nanosheets were realized by ultrasonic. Additionally, lysozyme in the presence of reducing agents to form amyloid-like phase-transited lysozyme (PTL) and self-assembling on the wool fabric. Finally, the AgNPs are reduced in situ by PTL and anchored onto the fabric. It has been demonstrated that Ag-MoS2/PTL@wool generates ROS under light irradiation, rapidly converts photothermal heat into generate hyperthermia, and promotes the release of Ag+. The aforementioned "four-in-one" approach resulted in bactericidal rates of 99.996 % (4.4 log, P < 0.0005) and 99.998 % (4.7 log, P < 0.0005) for S.aureus and E.coli, respectively. Even after 50 washing cycles, the inactivation rates remained at 99.813 % and 99.792 % for E.coli and S.aureus, respectively. In the absence of sunlight, AgNPs and PTL continue to provide continuous antibacterial activity. This work emphasizes the importance of amyloid protein in the synthesis and application of high-performance nanomaterials and provides a new direction for the safe and effective application of multiple synergistic antibacterial modes for microbial inactivation.
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Affiliation(s)
- Ning Zhang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, 1800 Lihu Ave, Wuxi 214122, Jiangsu, China
| | - Rongjin Shi
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, 1800 Lihu Ave, Wuxi 214122, Jiangsu, China
| | - Man Zhou
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, 1800 Lihu Ave, Wuxi 214122, Jiangsu, China
| | - Ping Wang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, 1800 Lihu Ave, Wuxi 214122, Jiangsu, China
| | - Yuanyuan Yu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, 1800 Lihu Ave, Wuxi 214122, Jiangsu, China
| | - Qiang Wang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, 1800 Lihu Ave, Wuxi 214122, Jiangsu, China.
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Guo R, Yu D, Wang S, Fu L, Lin Y. Nanosheet-hydrogel composites: from preparation and fundamental properties to their promising applications. SOFT MATTER 2023; 19:1465-1481. [PMID: 36752168 DOI: 10.1039/d2sm01471h] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Hydrogels are an important class of soft materials with elastic and intelligent properties. Nevertheless, these traditional hydrogels usually possess poor mechanical properties and limited functions, which greatly restrict their further applications. With the rapid development of nanotechnology, there have been significant advances in the design and fabrication of functional nanocomposite hydrogels with unique properties and functions. Among various materials, nanosheets with planar topography, large specific surface areas, and versatile physicochemical properties have attracted intense research interest. Herein, this review summarises the synthesis mechanisms, fundamental properties, and promising applications of nanosheet-incorporated hydrogels. In particular, how the nanosheet structure is applied to improve the overall performance of the hydrogel in each application is emphasized. Additionally, the current challenges and prospects are briefly discussed in this area. We expect that the combination of nanosheets and hydrogels can attract more researchers' interest and bring new opportunities in the future.
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Affiliation(s)
- Rongrong Guo
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, P. R. China.
| | - Deshuai Yu
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, P. R. China.
| | - Sen Wang
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, P. R. China.
| | - Lianlian Fu
- College of Material Science and Engineering, Huaqiao University, Xiamen 361021, P. R. China.
| | - Youhui Lin
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, P. R. China.
- National Institute for Data Science in Health and Medicine, Xiamen University, Xiamen 361102, P. R. China
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8
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Ma S, Li G, Li Z, Zhang Y, Lu H, Gao Z, Wu J, Long G, Huang Y. 2D Magnetic Semiconductor Fe 3GeTe 2 with Few and Single Layers with a Greatly Enhanced Intrinsic Exchange Bias by Liquid-Phase Exfoliation. ACS NANO 2022; 16:19439-19450. [PMID: 36288432 DOI: 10.1021/acsnano.2c09143] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
A 2D van der Waals (vdW) magnet can get rid of the constraints of lattice matching and compatibility and then create a variety of vdW heterostructures, which provides a opportunity for spintronic devices. However, the ability to reliably exfoliate large, high-quality vdW ferromagnetic Fe3GeTe2 (FGT) nanoflakes in scaled-up production is severely limited. Herein, an efficient and stable three-stage sonication-assisted liquid-phase exfoliation was developed for mass preparation of high-structural-integrity few- and single-layer FGT nanoflakes with a greatly enhanced intrinsic exchange bias. The three stages include slicing crystals, weakening interlayer vdW forces, and using ultrasonic cavitation. The highest yield of FGT nanoflakes is 22.3 wt % with single layers accounting for 6%. The size is controllable, and several micrometers, tens of micrometers, and a maximum of 103 μm are available. The 200 mg level output has overcome the limitations of mechanical exfoliation and molecular beam epitaxy in economically amplificated production. An intrinsic exchange bias is observed in the restacked nanoflakes due to the magnetic proximity on the interface of the FGT/natural surface oxide layer. The material reaches 578 Oe (2 K) and 2300 Oe after further oxidation, at least 250% higher than other precisely tailored vdW magnetic heterostructures. In addition, the unusual semiconductivity of the liquid-phase exfoliated FGT nanoflakes is reported. This work skillfully utilizes oxidation to enhance the potential of FGT for large-scale spintronics, optoelectronics, efficient data storage, and various extended applications, and it is beneficial for exfoliating other promising magnetic vdW materials.
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Affiliation(s)
- Suping Ma
- National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Materials Science and Engineering, Nankai University, Tianjin300350, People's Republic of China
| | - Guanghao Li
- National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Materials Science and Engineering, Nankai University, Tianjin300350, People's Republic of China
| | - Zhuo Li
- National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Materials Science and Engineering, Nankai University, Tianjin300350, People's Republic of China
| | - Yawen Zhang
- National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Materials Science and Engineering, Nankai University, Tianjin300350, People's Republic of China
| | - Haolin Lu
- School of Materials Science and Engineering, National Institute for Advanced Materials, Renewable Energy Conversion and Storage Center (RECAST), Nankai University, Tianjin300350, People's Republic of China
| | - Zhansheng Gao
- Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering, Nankai University, Tianjin300350, People's Republic of China
| | - Jinxiong Wu
- Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering, Nankai University, Tianjin300350, People's Republic of China
- Beijing National Laboratory for Molecular Sciences, Beijing100871, People's Republic of China
| | - Guankui Long
- School of Materials Science and Engineering, National Institute for Advanced Materials, Renewable Energy Conversion and Storage Center (RECAST), Nankai University, Tianjin300350, People's Republic of China
| | - Yi Huang
- National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Materials Science and Engineering, Nankai University, Tianjin300350, People's Republic of China
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Lv X, Lv A, Tian S, Xie T. A Tough and Highly Active Catalyst Carrier Tailored by Nanoparticles-encapsulation Poly(Ionic Liquid) Hydrogel : Synthesis and Catalytic Applications. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Yan P, Li M, Liu J, Song L, Tang K. Near-infrared responsive quaternized chitosan-coated MoS2/poly(vinyl alcohol) hydrogel with improved mechanical and rapid antibacterial properties. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Lu CH, Yeh YC. Synthesis and Processing of Dynamic Covalently Crosslinked Polydextran/Carbon Dot Nanocomposite Hydrogels with Tailorable Microstructures and Properties. ACS Biomater Sci Eng 2022; 8:4289-4300. [PMID: 36075100 DOI: 10.1021/acsbiomaterials.2c00873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Using functionalized nanoparticles to crosslink hydrophilic polymers is a growing theme of directly constructing nanocomposite (NC) hydrogels. Employing dynamic covalent chemistry at the nanoparticle-polymer interface is particularly attractive due to the spontaneous formation and reversible manner of dynamic covalent bonds. However, the structure and property modulation of the dynamic covalently crosslinked NC hydrogels has not been thoroughly discussed. Here, we fabricated NC hydrogels by using amine-functionalized carbon dots (CDs) to crosslink polydextran aldehyde (PDA) polymers through imine bond formation. The role of PDA with different oxidation degrees (i.e., PDA10, PDA30, and PDA50) in affecting the microstructures and properties of PDA@CD hydrogels was systematically investigated, showing that the PDA50@CD hydrogel presented the densest structure and the highest mechanical strength among the three PDA@CD hydrogels. The pH-responsiveness, 3D printing, electrospinning, and biocompatibility of PDA@CD hydrogels were also demonstrated, showing the great promise of using PDA@CD hydrogels for applications in biomedicine and biofabrication.
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Affiliation(s)
- Cheng-Hsun Lu
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Yi-Cheun Yeh
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
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12
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Wang H, Shi J, Zhang J, Tao Z, Wang H, Yang Q, van Aken PA, Chen R. Pectin-assisted one-pot synthesis of MoS 2 nanocomposites for resistive switching memory application. NANOSCALE 2022; 14:12129-12135. [PMID: 35960001 DOI: 10.1039/d2nr02558b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Developing simple, large-scale, and environmentally-friendly ways to prepare two-dimensional (2D) semiconductive hexagonal phase MoS2 (2H-MoS2) nanocomposites remains a significant challenge. Herein, we propose a facile and green method for preparing few-layer MoS2 nanosheets via a pectin-assisted one-pot synthesis (PAOS), where pectin serves as the surfactant and stabilizer to assist the direct exfoliation of bulk MoS2 into few-layered semiconductive 2H-MoS2 nanosheets in water, as well as a second functional part to produce the 2H-MoS2/pectin nanocomposites simultaneously. Based on the facilely prepared 2H-MoS2/pectin nanocomposites, extraordinary flash memory devices with a typical bistable electrical switching and nonvolatile rewritable memory effect were realized, achieving a low threshold voltage below 2.0 V, a high ON/OFF ratio as high as 5 × 102, and a retention time longer than 104 s. Systematic investigations reveal that the electrical transition is due to the charge trapping and detrapping behaviors of the 2D 2H-MoS2/pectin nanocomposites. These findings through PAOS not only offer a general route for efficiently preparing 2H-MoS2 nanosheets and nanocomposites, but also reveal the great potential of 2D MoS2-based materials in rectifying the electronic properties for high-performance memory devices.
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Affiliation(s)
- Honglei Wang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Jun Shi
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Jingyu Zhang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Zhehao Tao
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Hongguang Wang
- Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569 Stuttgart, Germany.
| | - Qingqing Yang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Peter A van Aken
- Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569 Stuttgart, Germany.
| | - Runfeng Chen
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
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13
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Feng Y, He Z, Yang Z, Tang W, Chi Q, Chen Q. Enhanced thermal conductivity and insulation properties of mica tape with BN coating via electrostatic spraying technology. J Appl Polym Sci 2022. [DOI: 10.1002/app.53034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yu Feng
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education Harbin University of Science and Technology Harbin China
- School of Electrical and Electronic Engineering Harbin University of Science and Technology Harbin China
| | - Ziyuan He
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education Harbin University of Science and Technology Harbin China
- School of Electrical and Electronic Engineering Harbin University of Science and Technology Harbin China
| | - Zhijie Yang
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education Harbin University of Science and Technology Harbin China
- School of Electrical and Electronic Engineering Harbin University of Science and Technology Harbin China
| | - Wenxin Tang
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education Harbin University of Science and Technology Harbin China
- School of Electrical and Electronic Engineering Harbin University of Science and Technology Harbin China
| | - Qingguo Chi
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education Harbin University of Science and Technology Harbin China
- School of Electrical and Electronic Engineering Harbin University of Science and Technology Harbin China
| | - Qingguo Chen
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education Harbin University of Science and Technology Harbin China
- School of Electrical and Electronic Engineering Harbin University of Science and Technology Harbin China
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14
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Garrido M, Barrejón M, Berrocal JA, Syrgiannis Z, Prato M. Polyaromatic cores for the exfoliation of popular 2D materials. NANOSCALE 2022; 14:8986-8994. [PMID: 35699137 DOI: 10.1039/d2nr00894g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Two-dimensional (2D) nanomaterials have attracted interest from the scientific community due to their unique properties. The production of these materials has been carried out by diverse methodologies, the liquid phase exfoliation being the most promising one due to its simplicity and potential scalability. The use of several stabilizers allows to obtain dispersions of these 2D nanomaterials in solvents with low boiling points. Herein we describe a general exfoliation method for different 2D materials employing a biphasic water/dichloromethane system and two different (poly)aromatic hydrocarbons (PAHs). This method allows us to obtain dispersions of the exfoliated 2D materials with high concentrations in the organic solvent. Due to the low boiling point of dichloromethane, and therefore its easy removal, the obtained dispersions can be employed as additives for different composites. We corroborate that the exfoliation efficiency is improved due to the π-π and van der Waals interactions between the PAHs and the layers of the 2D materials.
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Affiliation(s)
- Marina Garrido
- Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, Università degli Studi di Trieste, Via Licio Giorgieri 1, Trieste 34127, Italy.
| | - Myriam Barrejón
- Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, Università degli Studi di Trieste, Via Licio Giorgieri 1, Trieste 34127, Italy.
- Neural Repair and Biomaterials Laboratory, Hospital Nacional de Parapléjicos (SESCAM), Finca la Peraleda s/n, 45071 Toledo, Spain
| | - José Augusto Berrocal
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Zois Syrgiannis
- Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, Università degli Studi di Trieste, Via Licio Giorgieri 1, Trieste 34127, Italy.
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, Università degli Studi di Trieste, Via Licio Giorgieri 1, Trieste 34127, Italy.
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, Donostia-San Sebastián 20014, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao 48013, Spain
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15
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Feng CP, Wei F, Sun KY, Wang Y, Lan HB, Shang HJ, Ding FZ, Bai L, Yang J, Yang W. Emerging Flexible Thermally Conductive Films: Mechanism, Fabrication, Application. NANO-MICRO LETTERS 2022; 14:127. [PMID: 35699776 PMCID: PMC9198190 DOI: 10.1007/s40820-022-00868-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 04/21/2022] [Indexed: 05/27/2023]
Abstract
Effective thermal management is quite urgent for electronics owing to their ever-growing integration degree, operation frequency and power density, and the main strategy of thermal management is to remove excess energy from electronics to outside by thermal conductive materials. Compared to the conventional thermal management materials, flexible thermally conductive films with high in-plane thermal conductivity, as emerging candidates, have aroused greater interest in the last decade, which show great potential in thermal management applications of next-generation devices. However, a comprehensive review of flexible thermally conductive films is rarely reported. Thus, we review recent advances of both intrinsic polymer films and polymer-based composite films with ultrahigh in-plane thermal conductivity, with deep understandings of heat transfer mechanism, processing methods to enhance thermal conductivity, optimization strategies to reduce interface thermal resistance and their potential applications. Lastly, challenges and opportunities for the future development of flexible thermally conductive films are also discussed.
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Affiliation(s)
- Chang-Ping Feng
- Shandong Engineering Research Center for Additive Manufacturing, Qingdao University of Technology, Qingdao, 266520, People's Republic of China.
| | - Fang Wei
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, People's Republic of China
| | - Kai-Yin Sun
- Shandong Engineering Research Center for Additive Manufacturing, Qingdao University of Technology, Qingdao, 266520, People's Republic of China
| | - Yan Wang
- Shandong Engineering Research Center for Additive Manufacturing, Qingdao University of Technology, Qingdao, 266520, People's Republic of China
| | - Hong-Bo Lan
- Shandong Engineering Research Center for Additive Manufacturing, Qingdao University of Technology, Qingdao, 266520, People's Republic of China.
| | - Hong-Jing Shang
- Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
| | - Fa-Zhu Ding
- Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
| | - Lu Bai
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, People's Republic of China
| | - Jie Yang
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, People's Republic of China
| | - Wei Yang
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, People's Republic of China.
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16
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Lee H, Han H, Park C, Oh JW, Kim HH, Kim S, Koo M, Choi WK, Park C. Halide Perovskite Nanocrystal-Enabled Stabilization of Transition Metal Dichalcogenide Nanosheets. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2106035. [PMID: 34923744 DOI: 10.1002/smll.202106035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/25/2021] [Indexed: 06/14/2023]
Abstract
Transition metal dichalcogenide (TMD) nanosheets exfoliated in the liquid phase are of significant interest owing to their potential for scalable and flexible photoelectronic applications. Although various dispersants such as surfactants, oligomers, and polymers are used to obtain highly exfoliated TMD nanosheets, most of them are electrically insulating and need to be removed; otherwise, the photoelectric properties of the TMD nanosheets degrade. Here, inorganic halide perovskite nanocrystals (NCs) of CsPbX3 (X = Cl, Br, or I) are presented as non-destructive dispersants capable of dispersing TMD nanosheets in the liquid phase and enhancing the photodetection properties of the nanosheets, thus eliminating the need to remove the dispersant. MoSe2 nanosheets dispersed in the liquid phase are adsorbed with CsPbCl3 NCs. The CsPbCl3 nanocrystals on MoSe2 efficiently withdraw electrons from the nanosheets, and suppress the dark current of the MoSe2 nanosheets, leading to flexible near-infrared MoSe2 photodetectors with a high ON/OFF photocurrent ratio and detectivity. Moreover, lanthanide ion-doped CsPbCl3 NCs enhance the ON/OFF current ratio to >106 . Meanwhile, the dispersion stability of the MoSe2 nanosheets exfoliated with the perovskite NCs is sufficiently high.
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Affiliation(s)
- Hyeokjung Lee
- Department of Materials Science and Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Hyowon Han
- Department of Materials Science and Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Chanho Park
- Department of Materials Science and Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Jin Woo Oh
- Department of Materials Science and Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Hong Hee Kim
- Center for Opto-Electronic Materials and Devices, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Sohee Kim
- Department of Materials Science and Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Min Koo
- Department of Materials Science and Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Won Kook Choi
- Center for Opto-Electronic Materials and Devices, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Cheolmin Park
- Department of Materials Science and Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul, 03722, Republic of Korea
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17
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Chen J, Pu H, Hersam MC, Westerhoff P. Molecular Engineering of 2D Nanomaterial Field-Effect Transistor Sensors: Fundamentals and Translation across the Innovation Spectrum. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2106975. [PMID: 34921575 DOI: 10.1002/adma.202106975] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/01/2021] [Indexed: 06/14/2023]
Abstract
Over the last decade, 2D layered nanomaterials have attracted significant attention across the scientific community due to their rich and exotic properties. Various nanoelectronic devices based on these 2D nanomaterials have been explored and demonstrated, including those for environmental applications. Here, the fundamental attributes of 2D layered nanomaterials for field-effect transistor (FET) sensors and tunneling FET (TFET) sensors, which provide versatile detection of water contaminants such as heavy-metal ions, bacteria, nutrients, and organic pollutants, are discussed. The major challenges and opportunities are also outlined for designing and fabricating 2D nanomaterial FET/TFET sensors with superior performance. Translation of these FET/TFET sensors from fundamental research to applied technology is illustrated through a case study on graphene-based real-time FET water sensors. A second case study centers on large-scale sensor networks for water-quality monitoring to enable intelligent drinking water and river-water systems. Overall, 2D nanomaterial FET sensors have significant potential for enabling a human-centered intelligent water system that can likely be applied to other precarious water supplies around the globe.
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Affiliation(s)
- Junhong Chen
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
- Chemical Sciences and Engineering Division, Physical Sciences and Engineering Directorate, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Haihui Pu
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
- Chemical Sciences and Engineering Division, Physical Sciences and Engineering Directorate, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Mark C Hersam
- Department of Materials Science and Engineering and Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Paul Westerhoff
- School of Sustainable Engineering and The Built Environment, Arizona State University, Tempe, AZ, 85287, USA
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18
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Lu CH, Yeh YC. Fabrication of Multiresponsive Magnetic Nanocomposite Double-Network Hydrogels for Controlled Release Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2105997. [PMID: 34791796 DOI: 10.1002/smll.202105997] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/01/2021] [Indexed: 06/13/2023]
Abstract
Nanocomposite double-network hydrogels (ncDN hydrogels) have been demonstrated as promising biomaterials to present several desired properties (e.g., high mechanical strength, stimuli-responsiveness, and local therapy) for biomedicine. Here, a new type of ncDN hydrogels featuring definable microstructures and properties as well as multistimuli responsiveness for controlled release applications is developed. Amine-functionalized iron oxide nanoparticles (IOPs_NH2 ) are used as nanoparticle cross-linkers to simultaneously connect the dual networks of gelatin (Gel) and polydextran aldehyde (PDA) through hydrogen bonding, electrostatic interactions, and dynamic imine bonds. The pH- and temperature-responsive Gel/PDA/IOP_NH2 ncDN hydrogels present a fast release profile of proteins at acidic pH and high temperature. Besides, IOP_NH2 also contributes the magnetic-responsiveness to the ncDN hydrogels, allowing the use of magnetic field to generate heat to facilitate the structural change of hydrogels and the subsequent applications. Taken together, a versatile ncDN hydrogel platform capable of multistimuli responsiveness and local heating for controlled release is developed for advanced biomedical applications.
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Affiliation(s)
- Cheng-Hsun Lu
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, 10617, Taiwan
| | - Yi-Cheun Yeh
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, 10617, Taiwan
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19
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Lee K, Jeong S, Park J, Kim H. MoS 2-Embedded, Interpenetrating Network Composite Hydrogels that Show Controlled Release of Dyes and Tunable Strength. ACS OMEGA 2021; 6:25623-25630. [PMID: 34632218 PMCID: PMC8495838 DOI: 10.1021/acsomega.1c03690] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/10/2021] [Indexed: 05/03/2023]
Abstract
This paper describes a conceptual design of hierarchical composite hydrogels. The hydrogel materials comprise MoS2 flakes and interpenetrating polymer networks, and further exhibit controlled release and tunable strength that are caused by the synergistic combination of select components. In terms of design, MoS2 flakes initiate radical polymerization of chosen monomers and simultaneously provide physical cross-linking points, both of which afford a primary composite network. Then, the sequential formation of additional networks results in functional, hierarchical, composite hydrogels. Therefore, we were able to demonstrate double-network hydrogels as a stimuli-responsive vector for programmed release of cargo molecules in response to heat or light or to form triple-network hydrogels showing tunable mechanical strength owing to intermolecular interaction between charged monomers and MoS2 flakes. The design concept would be expanded by incorporating other chalcogenides or functional monomers, which advance the properties and functionalities of materials and broadens the versatility of nanocomposite hydrogels.
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Affiliation(s)
| | | | - Jieun Park
- School of Polymer Science
and Engineering & Alan G. MacDiarmid Energy Research Institute, Chonnam National University, 77 Yongbong-ro,
Buk-gu, Gwangju 61186, Korea
| | - Hyungwoo Kim
- School of Polymer Science
and Engineering & Alan G. MacDiarmid Energy Research Institute, Chonnam National University, 77 Yongbong-ro,
Buk-gu, Gwangju 61186, Korea
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20
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Wang H, Niu J, Shi J, Lv W, Wang H, van Aken PA, Zhang Z, Chen R, Huang W. Facile Preparation of MoS 2 Nanocomposites for Efficient Potassium-Ion Batteries by Grinding-Promoted Intercalation Exfoliation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2102263. [PMID: 34269515 DOI: 10.1002/smll.202102263] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Indexed: 06/13/2023]
Abstract
Efficient exfoliations of bulk molybdenum disulfide (MoS2 ) into few-layered nanosheets in pure phase are highly attractive because of the promising applications of the resulted 2D materials in diversified optoelectronic devices. Here, a new exfoliation method is presented to prepare semiconductive 2D hexagonal phase (2H phase) MoS2 -cellulose nanocrystal (CNC) nanocomposites using grinding-promoted intercalation exfoliation (GPIE). This method with facile grinding of the bulk MoS2 and CNC powder followed by conventional liquid-phase exfoliation in water can not only efficiently exfoliate 2H-MoS2 nanosheets, but also produce the 2H-MoS2 /CNC 2D nanocomposites simultaneously. Interestingly, the intercalated CNC sandwiched in MoS2 nanosheets increases the interlayer spacing of 2H-MoS2 , providing perfect conditions to accommodate the large-sized ions. Therefore, these nanocomposites are good anode materials of potassium-ion batteries (KIBs), showing a high reversible capacity of 203 mAh g-1 at 200 mA g-1 after 300 cycles, a good reversible capacity of 114 mAh g-1 at 500 mA g-1 , and a low decay of 0.02% per cycle over 1500 cycles. With these impressive KIB performances, this efficient GPIE method will open up a new avenue to prepare pure-phase MoS2 and promising 2D nanocomposites for high-performance device applications.
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Affiliation(s)
- Honglei Wang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications (NUPT), Nanjing, 210023, China
| | - Jiazheng Niu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jingshi Road 17923, Jinan, 250061, P. R. China
| | - Jun Shi
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications (NUPT), Nanjing, 210023, China
| | - Wenzhen Lv
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications (NUPT), Nanjing, 210023, China
| | - Hongguang Wang
- Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569, Stuttgart, Germany
| | - Peter A van Aken
- Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569, Stuttgart, Germany
| | - Zhonghua Zhang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jingshi Road 17923, Jinan, 250061, P. R. China
| | - Runfeng Chen
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications (NUPT), Nanjing, 210023, China
| | - Wei Huang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications (NUPT), Nanjing, 210023, China
- Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), Xi'an, 710072, China
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21
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Wang Z, Liu Y, Wang Z, Huang X, Huang W. Hydrogel‐based composites: Unlimited platforms for biosensors and diagnostics. VIEW 2021. [DOI: 10.1002/viw.20200165] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Zeyi Wang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) Nanjing Tech University (NanjingTech) Nanjing China
| | - Yanlei Liu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) Nanjing Tech University (NanjingTech) Nanjing China
| | - Zhiwei Wang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) Nanjing Tech University (NanjingTech) Nanjing China
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering Northwestern Polytechnical University Xi'an China
| | - Xiao Huang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) Nanjing Tech University (NanjingTech) Nanjing China
| | - Wei Huang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) Nanjing Tech University (NanjingTech) Nanjing China
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering Northwestern Polytechnical University Xi'an China
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22
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Yu K, Yuan T, Zhang S, Bao C. Hypergravity-Induced Accumulation: A New, Efficient, and Simple Strategy to Improve the Thermal Conductivity of Boron Nitride Filled Polymer Composites. Polymers (Basel) 2021; 13:459. [PMID: 33572667 PMCID: PMC7866976 DOI: 10.3390/polym13030459] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 01/15/2021] [Accepted: 01/20/2021] [Indexed: 02/01/2023] Open
Abstract
Thermal conductive polymer composites (filled type) consisting of thermal conductive fillers and a polymer matrix have been widely used in a range of areas. More than 10 strategies have been developed to improve the thermal conductivity of polymer composites. Here we report a new "hypergravity accumulation" strategy. Raw material mixtures of boron nitride/silicone rubber composites were treated in hypergravity fields (800-20,000 g, relative gravity acceleration) before heat-curing. A series of comparison studies were made. It was found that hypergravity treatments could efficiently improve the microstructures and thermal conductivity of the composites. When the hypergravity was about 20,000 g (relative gravity acceleration), the obtained spherical boron nitride/silicone rubber composites had highly compacted microstructures and high and isotropic thermal conductivity. The highest thermal conductivity reached 4.0 W/mK. Thermal interface application study showed that the composites could help to decrease the temperature on a light-emitting diode (LED) chip by 5 °C. The mechanism of the improved microstructure increased thermal conductivity, and the high viscosity problem in the preparation of boron nitride/silicone rubber composites, and the advantages and disadvantages of the hypergravity accumulation strategy, were discussed. Overall, this work has provided a new, efficient, and simple strategy to improve the thermal conductivity of boron nitride/silicone rubber and other polymer composites (filled type).
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Affiliation(s)
- Kangkang Yu
- School of Materials Science and Engineering, Tiangong University, 399 Binshui West Road, Tianjin 300387, China; (K.Y.); (T.Y.); (S.Z.)
| | - Tao Yuan
- School of Materials Science and Engineering, Tiangong University, 399 Binshui West Road, Tianjin 300387, China; (K.Y.); (T.Y.); (S.Z.)
| | - Songdi Zhang
- School of Materials Science and Engineering, Tiangong University, 399 Binshui West Road, Tianjin 300387, China; (K.Y.); (T.Y.); (S.Z.)
| | - Chenlu Bao
- School of Materials Science and Engineering, Tiangong University, 399 Binshui West Road, Tianjin 300387, China; (K.Y.); (T.Y.); (S.Z.)
- Tianjin HaiTe Thermal Management Technology Co., Ltd., 6 Huake 8 Road, Tianjin 300450, China
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23
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Arora K, Singh G, Karthikeyan S, Kang TS. One-pot sustainable preparation of sunlight active ZnS@graphene nano-composites using a Zn containing surface active ionic liquid. NANOSCALE ADVANCES 2020; 2:4770-4776. [PMID: 36132906 PMCID: PMC9418228 DOI: 10.1039/d0na00486c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 08/10/2020] [Indexed: 06/16/2023]
Abstract
Herein we report a facile and sustainable method for the preparation of ZnS@graphene nano-composites (NCs). An appreciable amount of graphene is obtained by liquid-phase exfoliation using a zinc-containing surface active ionic liquid (SAIL). It is followed by in situ preparation of ZnS quantum dot (QD) decorated graphene sheets at room temperature for the first time. The employed method is distinct from all previous reports, as we have employed graphene instead of graphene oxide (GO) or reduced graphene oxide (rGO) and used relatively fewer chemicals. Further, a SAIL is employed as a precursor of Zn2+ as well as a template for the preparation of ZnS QDs onto graphene. The prepared ZnS@graphene NCs show enhanced photocatalytic performance for the degradation of Rhodamine B dye under sunlight and ciprofloxacin antibiotic under visible light as compared to bare ZnS QDs. The better photocatalytic activity of the NCs under visible light compared to that reported in the literature along with the ease of preparation is advantageous for scaling-up the process.
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Affiliation(s)
- Komal Arora
- Department of Chemistry, University Grants Commission (UGC) Centre for Advanced Studies-II, Guru Nanak Dev University Amritsar-143005 Punjab India
| | - Gurbir Singh
- Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Sekar Karthikeyan
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Tejwant Singh Kang
- Department of Chemistry, University Grants Commission (UGC) Centre for Advanced Studies-II, Guru Nanak Dev University Amritsar-143005 Punjab India
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24
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Hassan K, Nine MJ, Tung TT, Stanley N, Yap PL, Rastin H, Yu L, Losic D. Functional inks and extrusion-based 3D printing of 2D materials: a review of current research and applications. NANOSCALE 2020; 12:19007-19042. [PMID: 32945332 DOI: 10.1039/d0nr04933f] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Graphene and related 2D materials offer an ideal platform for next generation disruptive technologies and in particular the potential to produce printed electronic devices with low cost and high throughput. Interest in the use of 2D materials to create functional inks has exponentially increased in recent years with the development of new ink formulations linked with effective printing techniques, including screen, gravure, inkjet and extrusion-based printing towards low-cost device manufacturing. Exfoliated, solution-processed 2D materials formulated into inks permits additive patterning onto both rigid and conformable substrates for printed device design with high-speed, large-scale and cost-effective manufacturing. Each printing technique has some sort of clear advantages over others that requires characteristic ink formulations according to their individual operational principles. Among them, the extrusion-based 3D printing technique has attracted heightened interest due to its ability to create three-dimensional (3D) architectures with increased surface area facilitating the design of a new generation of 3D devices suitable for a wide variety of applications. There still remain several challenges in the development of 2D material ink technologies for extrusion printing which must be resolved prior to their translation into large-scale device production. This comprehensive review presents the current progress on ink formulations with 2D materials and their broad practical applications for printed energy storage devices and sensors. Finally, an outline of the challenges and outlook for extrusion-based 3D printing inks and their place in the future printed devices ecosystem is presented.
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Affiliation(s)
- Kamrul Hassan
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia. and ARC Research Hub for Graphene Enabled Industry Transformation, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Md Julker Nine
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia. and ARC Research Hub for Graphene Enabled Industry Transformation, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Tran Thanh Tung
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia. and ARC Research Hub for Graphene Enabled Industry Transformation, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Nathan Stanley
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia. and ARC Research Hub for Graphene Enabled Industry Transformation, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Pei Lay Yap
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia. and ARC Research Hub for Graphene Enabled Industry Transformation, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Hadi Rastin
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia. and ARC Research Hub for Graphene Enabled Industry Transformation, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Le Yu
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia. and ARC Research Hub for Graphene Enabled Industry Transformation, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Dusan Losic
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia. and ARC Research Hub for Graphene Enabled Industry Transformation, The University of Adelaide, Adelaide, SA 5005, Australia
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25
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Zhao L, Yan L, Wei C, Wang Z, Jia L, Ran Q, Huang X, Ren J. Aqueous-Phase Exfoliation and Functionalization of Boron Nitride Nanosheets Using Tannic Acid for Thermal Management Applications. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02766] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Lihua Zhao
- College of Electrical Engineering, Sichuan University, Chengdu 610065, China
| | - Lei Yan
- College of Electrical Engineering, Sichuan University, Chengdu 610065, China
| | - Chengmei Wei
- College of Electrical Engineering, Sichuan University, Chengdu 610065, China
| | - Zhong Wang
- College of Electrical Engineering, Sichuan University, Chengdu 610065, China
| | - Lichuan Jia
- College of Electrical Engineering, Sichuan University, Chengdu 610065, China
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Qichao Ran
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Xiaolong Huang
- College of Electrical Engineering, Sichuan University, Chengdu 610065, China
| | - Junwen Ren
- College of Electrical Engineering, Sichuan University, Chengdu 610065, China
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
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26
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Xu N, Chen J, Wei Q, Ding E, Zeng X, Xue F, Zhang N, Shang J. Preparation of polyvinyl alcohol/two‐dimensional transition metal dichalcogenides composites by high‐pressure homogenization. J Appl Polym Sci 2020. [DOI: 10.1002/app.48487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ning Xu
- College of Material Science and EngineeringSouth China University of Technology, 381 Wushan Road Guangzhou 510641 China
| | - Jiewei Chen
- College of Material Science and EngineeringSouth China University of Technology, 381 Wushan Road Guangzhou 510641 China
| | - Qiushi Wei
- College of Material Science and EngineeringSouth China University of Technology, 381 Wushan Road Guangzhou 510641 China
| | - Enyong Ding
- College of Material Science and EngineeringSouth China University of Technology, 381 Wushan Road Guangzhou 510641 China
| | - Xingrong Zeng
- College of Material Science and EngineeringSouth China University of Technology, 381 Wushan Road Guangzhou 510641 China
| | - Feng Xue
- College of Material Science and EngineeringSouth China University of Technology, 381 Wushan Road Guangzhou 510641 China
| | - Nianchun Zhang
- College of Material Science and EngineeringSouth China University of Technology, 381 Wushan Road Guangzhou 510641 China
| | - Jingqi Shang
- College of Material Science and EngineeringSouth China University of Technology, 381 Wushan Road Guangzhou 510641 China
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27
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Lee KM, Oh Y, Yoon H, Chang M, Kim H. Multifunctional Role of MoS 2 in Preparation of Composite Hydrogels: Radical Initiation and Cross-Linking. ACS APPLIED MATERIALS & INTERFACES 2020; 12:8642-8649. [PMID: 31976647 DOI: 10.1021/acsami.9b19567] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
This paper describes the multifunctional effect of molybdenum disulfide (MoS2) that enables the rapid and accessible preparation of nanocomposite hydrogels via a bottom-up design. The MoS2 nanoplatelet forms radical species through a redox reaction with persulfate under aqueous conditions while initiating the polymerization of acrylic monomers and providing noncovalent cross-linking points without requiring external stimuli or extra cross-linkers, leading to the formation of hydrogels that are in situ embedded with inorganic flakes. Furthermore, the addition of MoS2 could induce more rigid and elastic networks compared to those in control hydrogels using a typical cross-linker at the same level; for example, 0.08 wt % MoS2 resulted in a composite hydrogel of which the elastic modulus was 2.5 times greater than that from a hydrogel using N,N'-methylenebis(acrylamide) as the showing phase transition during polymerization. The composite hydrogels are self-healable, taking advantage of reversible physical cross-links. Thus, two cut hydrogel strips could be readily rejoined by heating at 70 °C, and the resulting whole strip showed mechanical strength similar to that of the pristine sample before it was cut. This synthetic approach would give way to the modular design of MoS2-containing composite hydrogels.
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Affiliation(s)
- Kyoung Min Lee
- School of Polymer Science and Engineering & Alan G. MacDiarmid Energy Research Institute , Chonnam National University , 77 Yongbong-ro , Buk-gu, Gwangju 61186 , Korea
- Department of Materials Science and Engineering, College of Engineering , Seoul National University , 1 Gwanak-ro , Gwanak-gu, Seoul 08826 , Korea
| | - Yuree Oh
- School of Polymer Science and Engineering & Alan G. MacDiarmid Energy Research Institute , Chonnam National University , 77 Yongbong-ro , Buk-gu, Gwangju 61186 , Korea
| | - Hyeonseok Yoon
- School of Polymer Science and Engineering & Alan G. MacDiarmid Energy Research Institute , Chonnam National University , 77 Yongbong-ro , Buk-gu, Gwangju 61186 , Korea
| | - Mincheol Chang
- School of Polymer Science and Engineering & Alan G. MacDiarmid Energy Research Institute , Chonnam National University , 77 Yongbong-ro , Buk-gu, Gwangju 61186 , Korea
| | - Hyungwoo Kim
- School of Polymer Science and Engineering & Alan G. MacDiarmid Energy Research Institute , Chonnam National University , 77 Yongbong-ro , Buk-gu, Gwangju 61186 , Korea
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28
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Arora K, Karthikeyan S, Shiekh BA, Kaur M, Singh H, Bhadu GR, Kang TS. In situ preparation of a nanocomposite comprising graphene and α-Fe2O3 nanospindles for the photo-degradation of antibiotics under visible light. NEW J CHEM 2020. [DOI: 10.1039/d0nj03190a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Preparation of α-Fe2O3 nanospindle (NS) decorated graphene sheets for antibiotic degradation.
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Affiliation(s)
- Komal Arora
- Department of Chemistry
- University Grants Commission (UGC) Centre for Advanced Studies-II
- Guru Nanak Dev University
- Amritsar-143005
- India
| | - Sekar Karthikeyan
- Department of Earth Resources Engineering
- Faculty of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Bilal Ahmad Shiekh
- Department of Chemistry
- University Grants Commission (UGC) Centre for Advanced Studies-II
- Guru Nanak Dev University
- Amritsar-143005
- India
| | - Manvir Kaur
- Department of Chemistry
- University Grants Commission (UGC) Centre for Advanced Studies-II
- Guru Nanak Dev University
- Amritsar-143005
- India
| | - Harjinder Singh
- Department of Chemistry
- University Grants Commission (UGC) Centre for Advanced Studies-II
- Guru Nanak Dev University
- Amritsar-143005
- India
| | - Gopala Ram Bhadu
- Analytical and Environmental Science Division and Centralized Instrument Facility
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar-364002
- India
| | - Tejwant Singh Kang
- Department of Chemistry
- University Grants Commission (UGC) Centre for Advanced Studies-II
- Guru Nanak Dev University
- Amritsar-143005
- India
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29
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Kaur M, Singh G, Damarla K, Singh G, Wang H, Wang J, Aswal VK, Kumar A, Kang TS. Aqueous systems of a surface active ionic liquid having an aromatic anion: phase behavior, exfoliation of graphene flakes and its hydrogelation. Phys Chem Chem Phys 2019; 22:169-178. [PMID: 31793955 DOI: 10.1039/c9cp04449c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Surface active ionic liquid (SAIL) induced hydrogelation, in the absence of additives, is important considering the properties of soft-hydrogels that can be utilized in different applications. The present study is concerned with the phase behavior and hydrogelation of a SAIL, 1-hexadecyl-3-methylimidazolium p-toluenesulfonate, [C16mim][PTS]. The obtained information about the phase behavior along with the surfactant like behavior of the SAIL was exploited for effective exfoliation of graphene-flakes from graphite in aqueous medium that remain stable for at least one month. Thus the obtained dispersion of graphene-flakes was subsequently hydrogelated exploiting the observations made from the phase behavior of the SAIL, via entanglement of long worm-like micelles of the SAIL formed at higher concentration. The obtained graphene-flake based hydrogels were found to be equally stable as compared to the blank hydrogel as well as against centrifugation. The low melting point of hydrogel facilitates the extraction of graphene-flakes from the hydrogel matrix by heating and diluting the gel and there is no sign of agglomeration in the extracted graphene-flakes even if the extraction is carried out after a period of three months. The present work is an exemplary study on exfoliation, hydrogelation and extraction of graphene-flakes from a hydrogel, when required, using a SAIL and is expected to provide a new platform for utilization of SAILs for efficient graphene exfoliation and subsequent preparation of functional materials.
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Affiliation(s)
- Manvir Kaur
- Department of Chemistry, UGC Sponsored Centre for Advanced Studies-II, Guru Nanak Dev University, Amritsar-143005, India.
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30
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Guan G, Han M. Functionalized Hybridization of 2D Nanomaterials. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1901837. [PMID: 31832321 PMCID: PMC6891915 DOI: 10.1002/advs.201901837] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/14/2019] [Indexed: 05/06/2023]
Abstract
The discovery of graphene and subsequent verification of its unique properties have aroused great research interest to exploit diversified graphene-analogous 2D nanomaterials with fascinating physicochemical properties. Through either physical or chemical doping, linkage, adsorption, and hybridization with other functional species into or onto them, more novel/improved properties are readily created to extend/expand their functionalities and further achieve great performance. Here, various functionalized hybridizations by using different types of 2D nanomaterials are overviewed systematically with emphasis on their interaction formats (e.g., in-plane or inter plane), synergistic properties, and enhanced applications. As the most intensely investigated 2D materials in the post-graphene era, transition metal dichalcogenide nanosheets are comprehensively investigated through their element doping, physical/chemical functionalization, and nanohybridization. Meanwhile, representative hybrids with more types of nanosheets are also presented to understand their unique surface structures and address the special requirements for better applications. More excitingly, the van der Waals heterostructures of diverse 2D materials are specifically summarized to add more functionality or flexibility into 2D material systems. Finally, the current research status and faced challenges are discussed properly and several perspectives are elaborately given to accelerate the rational fabrication of varied and talented 2D hybrids.
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Affiliation(s)
- Guijian Guan
- Institute of Molecular PlusTianjin UniversityTianjin300072P. R. China
| | - Ming‐Yong Han
- Institute of Materials Research and EngineeringA*STAR2 Fusionopolis WaySingapore138634Singapore
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31
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Wu PR, Liu Z, Cheng ZL. Ultrasound-Assisted Alkaline Solution Reflux for As-Exfoliated MoS 2 Nanosheets. ACS OMEGA 2019; 4:9823-9827. [PMID: 31460072 PMCID: PMC6648944 DOI: 10.1021/acsomega.9b01129] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 05/24/2019] [Indexed: 06/10/2023]
Abstract
A facile approach was developed to produce MoS2 nanosheets by ultrasound-assisted reflux exfoliation, which was highly efficient for large-scale production and sustainable for environment. The interlayer force of bulk MoS2 was first exhausted in employing LiOH/NaOH solution by reflux and thereafter quickly exfoliated by ultrasound. The lateral size of the as-prepared MoS2 nanosheets with about 2-9 layers became smaller. Definitely, the average friction coefficient and wear scar diameter of 0.08 wt % MoS2-based oil decreased by about 21.87 and 38.09% relative to the base oil, which displayed better antifriction and antiwear performances.
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32
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Wang X, Wu P. Highly Thermally Conductive Fluorinated Graphene Films with Superior Electrical Insulation and Mechanical Flexibility. ACS APPLIED MATERIALS & INTERFACES 2019; 11:21946-21954. [PMID: 31134789 DOI: 10.1021/acsami.9b07377] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Graphene-based heat-spreading films have captured high attention in academic study and commercial applications because of their extremely high thermal conductivity and desired flexibility. However, the electrical conductivity limits their utilizations in many electronic fields. Herein, to address this problem, fluorinated graphene (F-graphene) that is exfoliated from commercial fluorinated graphite was first used to prepare the flexible free-standing composite film via vacuum filtration of uniform poly(vinyl alcohol)-assisted F-graphene suspension. The well-organized alignment of F-graphene lamellas makes the composite film show an ultrahigh in-plane thermal conductivity of 61.3 W m-1 K-1 at 93 wt % F-graphene. Despite at such high filler loading, the fabricated F-graphene film still possesses a superior electrical insulation property. Therefore, these results suggest that F-graphene, as the novel thermally conductive filler, demonstrates fascinating characters in the preparation of a thermally conductive yet electrically insulating nanocomposite.
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Affiliation(s)
- Xiongwei Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials , Donghua University , Shanghai 201620 , China
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200433 , P. R. China
| | - Peiyi Wu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials , Donghua University , Shanghai 201620 , China
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200433 , P. R. China
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33
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Hu B, Sun S, Wu B, Wu P. Colloidally Stable Monolayer Nanosheets with Colorimetric Responses. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1804975. [PMID: 30589208 DOI: 10.1002/smll.201804975] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Indexed: 06/09/2023]
Abstract
Despite the discovery of chromogenic-layered materials for decades of years, fabrication of colloidally stable monolayer organic 2D nanosheets in aqueous media with colorimetric responses is still challenging. Herein reported is the first solution synthesis of chromic monolayer nanosheets via the topochemical polymerization of self-assembled amphiphilic diacetylenes in aqueous media. The polydiacetylene (PDA) nanosheets are ≈3-4 nm thick in solution and only ≈1.9 nm thick in the dried state, while the lateral size can reach several micrometers. Moreover, the aqueous stability endows PDA nanosheets with excellent processability, which can further assemble into films via vacuum filtration or act as an ink for high-resolution inkjet printing. The filtrated films and printed patterns exhibit fully reversible blue-to-red thermochromism, and the film also displays an interesting reversible colorimetric transition in response to near-infrared light, which is not reported for other PDA-only systems. The present colloidal PDA nanosheets should represent a new kind of chromic organic 2D nanomaterials that may be applied as novel building blocks for developing intelligent hybrid materials and may also find diverse sensing, display and/or anticounterfeiting applications.
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Affiliation(s)
- Bojian Hu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Laboratory for Advanced Materials, Fudan University, Shanghai, 200433, China
| | - Shengtong Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai, 201620, China
| | - Baohu Wu
- Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ) Forschungszentrum Jülich, Lichtenbergstr. 1, 85748, Garching, Germany
| | - Peiyi Wu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Laboratory for Advanced Materials, Fudan University, Shanghai, 200433, China
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai, 201620, China
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34
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Ippolito S, Ciesielski A, Samorì P. Tailoring the physicochemical properties of solution-processed transition metal dichalcogenides via molecular approaches. Chem Commun (Camb) 2019; 55:8900-8914. [DOI: 10.1039/c9cc03845k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this Feature Article we highlight the tremendous progress in solution-processed transition metal dichalcogenides and the molecular approaches employed to finely tune their physicochemical properties.
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Affiliation(s)
| | | | - Paolo Samorì
- Université de Strasbourg
- CNRS
- ISIS
- 67000 Strasbourg
- France
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35
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Wang ZG, Huang YF, Zhang GQ, Wang HQ, Xu JZ, Lei J, Zhu L, Gong F, Li ZM. Enhanced Thermal Conductivity of Segregated Poly(vinylidene fluoride) Composites via Forming Hybrid Conductive Network of Boron Nitride and Carbon Nanotubes. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01764] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Zhi-Guo Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Yan-Fei Huang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Guo-Qiang Zhang
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202, United States
| | - Han-Qin Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Jia-Zhuang Xu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Jun Lei
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Lei Zhu
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202, United States
| | - Feng Gong
- School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, 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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