1
|
Song J, Xu X, Liang X. Thermal transport properties of graphene aerogel as an advanced carrier for enhanced energy storage. Phys Chem Chem Phys 2024; 26:2025-2034. [PMID: 38126527 DOI: 10.1039/d3cp05078e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Leveraging graphene aerogels as carriers offers innovative avenues for achieving enhanced energy density, thermal conductivity, and stability in energy storage materials due to their unique attributes. This study investigates the thermal transport properties of composite sulfur cathode materials and phase change materials based on graphene aerogels using molecular dynamics simulation. A graphene aerogel model is established, and the effects of sulfur and octadecane content on the thermal transport properties of graphene aerogels and graphene aerogel-based composites are examined. A theoretical model of heat transport is developed to analyze the contribution of fillers and graphene aerogels to the thermal conductivity of the composites. The results show that the theoretical analytical model shows strong agreement with the molecular dynamics results, especially at high filler content. This research provides valuable theoretical guidance for understanding the thermal transport properties of graphene aerogel-based composite sulfur cathode materials and phase change materials.
Collapse
Affiliation(s)
- Jieren Song
- School of Mechanical and Material Engineering, North China University of Technology, Beijing 100144, China.
| | - Xianghua Xu
- Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
| | - Xingang Liang
- Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
| |
Collapse
|
2
|
Huo J, Zhang G, Zhang X, Yuan X, Guo S. Flexible Fluorinated Graphene/Poly(vinyl Alcohol) Films toward High Thermal Management Capability. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37922105 DOI: 10.1021/acsami.3c12754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2023]
Abstract
Graphene is widely used in heat dissipation, owing to its inherently high in-plane thermal conductivity and excellent mechanical properties. However, its poor cross-plane thermal conductivity limits its use in some electronic applications. The electron distribution of graphene and the interaction with the base material can be greatly altered by introducing F, the most electronegative element, giving fluorinated graphene oxide (FG) with a high thermal conductivity. Herein, FG is prepared by grafting F atoms onto the surface of graphene oxide in a low-temperature solid-phase reaction with poly(vinylidene fluoride) as a fluorine source. This method can effectively avoid the use of dangerous substances such as HF and F2. The FG dispersion and aqueous poly(vinyl alcohol) (PVA) solution are sequentially vacuum-filtered to obtain the FG/PVA composite film. After natural drying and hot-pressing, the thermal conductivity of the N-FG/PVA film is enhanced by the hydrogen bond between F of FG and the hydroxyl group of PVA. The in-plane and cross-plane thermal conductivity of an N-FG/PVA film containing 10.4 wt % FG are 7.13 and 1.42 W m-1 k-1, respectively. The film has a tensile strength of 60 MPa and an elongation at a break of 28%, which is promising for the thermal management of flexible electronic devices.
Collapse
Affiliation(s)
- Jinghao Huo
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Institute of Frontier Science and Technology Transfer, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Guoqiang Zhang
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Institute of Frontier Science and Technology Transfer, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Xinyi Zhang
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Institute of Frontier Science and Technology Transfer, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Xiaoyan Yuan
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Institute of Frontier Science and Technology Transfer, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Shouwu Guo
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Institute of Frontier Science and Technology Transfer, Shaanxi University of Science and Technology, Xi'an 710021, China
- Department of Electronic Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| |
Collapse
|
3
|
Icin O, Semerci T, Soraru GD, Vakifahmetoglu C. Design and Performance Comparison of Polymer-Derived Ceramic Ambigels and Aerogels. ACS OMEGA 2023; 8:32955-32962. [PMID: 37720786 PMCID: PMC10500666 DOI: 10.1021/acsomega.3c04607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 08/18/2023] [Indexed: 09/19/2023]
Abstract
This work reports the synthesis and characterization of preceramic- and polymer-derived SiOC aerogels obtained from a commercial siloxane resin. The preceramic aerogels were obtained by ambient pressure drying (ambigels) and CO2 supercritical drying. Despite different drying processes, the final ceramic ambi/aerogels have very similar microstructural features in density, porosity, pore size, and specific surface area. Both materials have shown promising results for oil sorption and water cleaning. Supercritically dried-SiOC aerogel had low thermal conductivity with 0.046 W·m-1·K-1 at RT and 0.073 W·m-1·K-1 at 500 °C. These results suggest that substituting the rather complicated and expensive CO2-SC drying with the more friendly and cheap ambient pressure drying can be done without having to accept significant microstructural/property degradation.
Collapse
Affiliation(s)
- Oyku Icin
- Department
of Materials Science and Engineering, İzmir
Institute of Technology, 35430 İzmir, Turkey
| | - Tugce Semerci
- Department
of Materials Science and Engineering, İzmir
Institute of Technology, 35430 İzmir, Turkey
| | - Gian Domenico Soraru
- Department
of Industrial Engineering, University of
Trento, Via Sommarive
9, 38123 Trento, Italy
| | - Cekdar Vakifahmetoglu
- Department
of Materials Science and Engineering, İzmir
Institute of Technology, 35430 İzmir, Turkey
| |
Collapse
|
4
|
Zhang J, Wang Z, Jiang G, Wei H, Zhang Z, Ren J. Enhanced Thermal Conductivity and Dielectric Properties of Epoxy Composites with Fluorinated Graphene Nanofillers. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2322. [PMID: 37630908 PMCID: PMC10458932 DOI: 10.3390/nano13162322] [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: 07/21/2023] [Revised: 08/03/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023]
Abstract
The demand for high-performance dielectrics has increased due to the rapid development of modern electric power and electronic technology. Composite dielectrics, which can overcome the limitations of traditional single polymers in thermal conductivity, dielectric properties and mechanical performance, have received considerable attention. In this study, we report a multifunctional nanocomposite material fabricated by blending fluorinated graphene (F-graphene) with epoxy resin. The F-graphene/epoxy composite exhibited a high thermal conductivity of 0.3304 W·m-1·K-1 at a low filler loading of 1.0 wt.%, which was 67.63% higher than that of pure epoxy. The composite dielectric also showed high breakdown strength (78.60 kV/mm), high dielectric constant (8.23), low dielectric loss (<0.015) and low AC conductivity (<10-11 S·m-1). Moreover, the composite demonstrated high thermal stability and strong mechanical strength. It is believed that the F-graphene/epoxy composite has outstanding performance in various aspects and can enable the development and manufacturing of advanced electric power and electronic equipment devices.
Collapse
Affiliation(s)
- Jiacheng Zhang
- College of Electrical Engineering, Sichuan University, Chengdu 610065, China; (J.Z.); (Z.W.); (G.J.); (H.W.)
| | - Zi Wang
- College of Electrical Engineering, Sichuan University, Chengdu 610065, China; (J.Z.); (Z.W.); (G.J.); (H.W.)
| | - Guoqing Jiang
- College of Electrical Engineering, Sichuan University, Chengdu 610065, China; (J.Z.); (Z.W.); (G.J.); (H.W.)
| | - Huachao Wei
- College of Electrical Engineering, Sichuan University, Chengdu 610065, China; (J.Z.); (Z.W.); (G.J.); (H.W.)
| | - Zongxi Zhang
- Electric Power Research Institute, State Grid Corporation of Sichuan Province, Chengdu 610072, China;
| | - Junwen Ren
- College of Electrical Engineering, Sichuan University, Chengdu 610065, China; (J.Z.); (Z.W.); (G.J.); (H.W.)
| |
Collapse
|
5
|
Du B, Chen N, Mai Y, Zhang G, Zhao Y. Improving the Hydrophobicity and Insulation Properties of Epoxy Resins by the Self-Assembly-Induced Coating of Fluorinated Graphene. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37377187 DOI: 10.1021/acsami.3c04623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
Moisture and insulation deterioration are important factors that cause the failure of epoxy packaging materials. Thus, improving the long-term stability of epoxy resins in a hot and humid environment is an important prerequisite for electronic components to adapt to complex working conditions and achieve high power densities. In this study, fluorinated graphene doped with hydroxy-terminated poly(dimethylsiloxane) was prepared and self-assembled into a micro/nanostructure on the surface of an epoxy resin, which effectively improved the surface hydrophobicity of the epoxy resin. In addition, the doping with hydroxy-terminated poly(dimethylsiloxane) modified the fluorinated graphene filler, thereby forming an arch bridge energy band structure inside the epoxy resin and thus regulating carrier migration. The water absorption of the epoxy resin decreased from 1.02 to 0.24%, and the surface water contact angle increased from 93.58 to 133.2°. Moreover, the electrical insulation performance of the modified epoxy resin was greatly improved when the surface resistivity and flashover voltage increased by 50.5 and 36.4%, respectively. Therefore, the proposed method realizes a simultaneous improvement in the hydrophobicity and insulation of epoxy resins.
Collapse
Affiliation(s)
- Bin Du
- School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 23009, China
| | - Nanqing Chen
- School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 23009, China
| | - Yuxiang Mai
- School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 23009, China
| | - Guodong Zhang
- School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 23009, China
| | - Yushun Zhao
- School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 23009, China
| |
Collapse
|
6
|
Owais M, Shiverskii A, Pal AK, Mahato B, Abaimov SG. Recent Studies on Thermally Conductive 3D Aerogels/Foams with the Segregated Nanofiller Framework. Polymers (Basel) 2022; 14:polym14224796. [PMID: 36432922 PMCID: PMC9695331 DOI: 10.3390/polym14224796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/07/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
As technology advances toward ongoing circuit miniaturization and device size reduction followed by improved power density, heat dissipation is becoming a key challenge for electronic equipment. Heat accumulation can be prevented if the heat from electrical equipment is efficiently exported, ensuring a device's lifespan and dependability and preventing otherwise possible mishaps or even explosions. Hence, thermal management applications, which include altering the role of aerogels from thermally insulative to thermally conductive, have recently been a hot topic for 3D-aerogel-based thermal interface materials. To completely comprehend three-dimensional (3D) networks, we categorized and comparatively analyzed aerogels based on carbon nanomaterials, namely fibers, nanotubes, graphene, and graphene oxide, which have capabilities that may be fused with boron nitride and impregnated for better thermal performance and mechanical stability by polymers, including epoxy, cellulose, and polydimethylsiloxane (PDMS). An alternative route is presented in the comparative analysis by carbonized cellulose. As a result, the development of structurally robust and stiff thermally conductive aerogels for electronic packaging has been predicted to increase polymer thermal management capabilities. The latest trends include the self-organization of an anisotropic structure on several hierarchical levels within a 3D framework. In this study, we highlight and analyze the recent advances in 3D-structured thermally conductive aerogels, their potential impact on the next generation of electronic components based on advanced nanocomposites, and their future prospects.
Collapse
Affiliation(s)
- Mohammad Owais
- Center for Petroleum Science and Engineering, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
- Correspondence: (M.O.); (S.G.A.)
| | - Aleksei Shiverskii
- Center for Petroleum Science and Engineering, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
| | - Amit Kumar Pal
- Center for Energy Science & Technology, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
| | - Biltu Mahato
- Center for Petroleum Science and Engineering, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
| | - Sergey G. Abaimov
- Center for Petroleum Science and Engineering, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
- Correspondence: (M.O.); (S.G.A.)
| |
Collapse
|
7
|
Ruan K, Gu J. Ordered Alignment of Liquid Crystalline Graphene Fluoride for Significantly Enhancing Thermal Conductivities of Liquid Crystalline Polyimide Composite Films. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00491] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Kunpeng Ruan
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, Guangdong 518057, P. R. China
- Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
| | - Junwei Gu
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, Guangdong 518057, P. R. China
- Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
| |
Collapse
|
8
|
Chen X, Fan K, Liu Y, Li Y, Liu X, Feng W, Wang X. Recent Advances in Fluorinated Graphene from Synthesis to Applications: Critical Review on Functional Chemistry and Structure Engineering. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2101665. [PMID: 34658081 DOI: 10.1002/adma.202101665] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/27/2021] [Indexed: 05/11/2023]
Abstract
Fluorinated graphene (FG), as an emerging member of the graphene derivatives family, has attracted wide attention on account of its excellent performances and underlying applications. The introduction of a fluorine atom, with the strongest electronegativity (3.98), greatly changes the electron distribution of graphene, resulting in a series of unique variations in optical, electronic, magnetic, interfacial properties and so on. Herein, recent advances in the study of FG from synthesis to applications are introduced, and the relationship between its structure and properties is summarized in detail. Especially, the functional chemistry of FG has been thoroughly analyzed in recent years, which has opened a universal route for the functionalization and even multifunctionalization of FG toward various graphene derivatives, which further broadens its applications. Moreover, from a particular angle, the structure engineering of FG such as the distribution pattern of fluorine atoms and the regulation of interlayer structure when advanced nanotechnology gets involved is summarized. Notably, the elaborated structure engineering of FG is the key factor to optimize the corresponding properties for potential applications, and is also an up-to-date research hotspot and future development direction. Finally, perspectives and prospects for the problems and challenges in the study of FG are put forward.
Collapse
Affiliation(s)
- Xinyu Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Material and Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Kun Fan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Material and Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Yang Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Material and Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Yu Li
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300354, P. R. China
| | - Xiangyang Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Material and Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Wei Feng
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300354, P. R. China
| | - Xu Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Material and Engineering, Sichuan University, Chengdu, 610065, P. R. China
| |
Collapse
|
9
|
Kang Z, Wang Y, Yang C, Xu B, Wang L, Zhu Z. Multifunctional N and O co-doped 3D carbon aerogel as a monolithic electrode for either enzyme immobilization, oxygen reduction and showing supercapacitance. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
10
|
Luo Y, Ye Z, Liao S, Wang F, Shao J. Mechanically Tunable Spongy Graphene/Cellulose Nanocrystals Hybrid Aerogel by Atmospheric Drying and Its Adsorption Applications. MATERIALS (BASEL, SWITZERLAND) 2021; 14:5961. [PMID: 34683553 PMCID: PMC8537567 DOI: 10.3390/ma14205961] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/03/2021] [Accepted: 10/06/2021] [Indexed: 11/28/2022]
Abstract
For expanding applications of spongy graphene aerogels (GAs) cost-effectively, we report a marriage of the two-step hydrothermal reduction and atmospheric drying method to fabricate a spongy CNC-graphene aerogel (CNG) with oil/water selectivity and tunable mechanical strength by a low-cost and straightforward approach. The reduced graphene oxide (rGO) with CNC by the ice-templated method can give rise to forming the hierarchical structure of hybrid GAs within the PUS network. Meanwhile, the fractured structure of PUS with a pre-compressive step arouses more versatility and durability, involving its selective and high-volume absorbability (up to 143%). The enhanced elastic modulus and more significant swelling effect than pure sponge materials give it a high potential for durable wastewater treatment.
Collapse
Affiliation(s)
| | | | | | | | - Jianmei Shao
- School of Electronic Information Engineering, Guangdong Ocean University, Zhanjiang 524088, China; (Y.L.); (Z.Y.); (S.L.); (F.W.)
| |
Collapse
|
11
|
Ahankari S, Paliwal P, Subhedar A, Kargarzadeh H. Recent Developments in Nanocellulose-Based Aerogels in Thermal Applications: A Review. ACS NANO 2021; 15:3849-3874. [PMID: 33710860 DOI: 10.1021/acsnano.0c09678] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Naturally derived nanocellulose (NC) is a renewable, biodegradable nanomaterial with high strength, low density, high surface area, and tunable surface chemistry, which allows its interaction with other polymers and nanomaterials in a controlled manner. In recent years, NC aerogel has gathered a lot of attention due to environmental concerns. This review presents recent developments of NC-based aerogels and their controlled interactions with other polymers and nanomaterials for thermal applications that include electronic devices, the apparel industry, superinsulating materials, and flame-retardant smart building materials. After going through the distinctive properties of NC aerogels, they are orderly categorized and discussed as thermally insulated, thermally conductive, and flame-retardant materials.
Collapse
Affiliation(s)
- Sandeep Ahankari
- School of Mechanical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India
| | - Pradyumn Paliwal
- School of Mechanical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India
| | - Aditya Subhedar
- School of Mechanical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India
| | - Hanieh Kargarzadeh
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Seinkiewicza 112, 90-363 Lodz, Poland
| |
Collapse
|