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Ren M, Mao B, Ding P, Niu L, Yuan Z, Jia X, Wang Z, Xu K, Wang J. Improvement of electrothermal and photothermal properties of ultra-thin graphite film on oxygen plasma-treated polyimide substrate. NANOTECHNOLOGY 2024; 35:235703. [PMID: 38417173 DOI: 10.1088/1361-6528/ad2e4a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 02/28/2024] [Indexed: 03/01/2024]
Abstract
Graphene and its derivatives are widely used in the field of energy conversion and management due to their excellent physical and chemical properties. In this paper, ultra-thin graphite film (GF) with thickness of 100-150 nm prepared by chemical vapor deposition was transferred to oxygen plasma-treated polyimide (PI) substrate as flexible heating film. The electrothermal and photothermal properties of GF on PI substrates with different treatment time were studied. The experimental results show that the PI substrate pretreated by oxygen plasma can change the surface morphology of GF, increase its electrical conductivity and light absorption capacity, and significantly improve the electrothermal and photothermal properties of GF heater. Under the low applied voltage of 5 V (power density of 0.81 W cm-2), the surface temperature of GF on 40 min plasma-treated PI substrate can rise to 250 °C, which is nearly 50 °C higher than that of GF on untreated PI substrate. When 100 nm thick commercial multilayer graphene film (MLG) is used, plasma-treated PI substrate can increase the electric heating temperature of MLG by 70 °C. In terms of photothermal performance, the surface temperature of GF on 50 min plasma-treated PI substrate can reach 73 °C under one Sun irradiation, which is 8 °C higher than that on untreated substrate. The experimental results are in good agreement with the simulation research. Our strategy has important implications for the development of efficient and energy-saving graphene/graphite-based heating films for advanced electrothermal and photothermal conversion devices.
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Affiliation(s)
- Mengshuai Ren
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou 450046, People's Republic of China
| | - Bo Mao
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou 450046, People's Republic of China
| | - Pei Ding
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou 450046, People's Republic of China
- Henan Key Laboratory of Aeronautical Materials and Applied Technologies, Zhengzhou University of Aeronautics, Zhengzhou 450046, People's Republic of China
| | - Luyang Niu
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou 450046, People's Republic of China
| | - Zhi Yuan
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou 450046, People's Republic of China
| | - Xuan Jia
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou 450046, People's Republic of China
| | - Zhihuan Wang
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou 450046, People's Republic of China
| | - Kun Xu
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou 450046, People's Republic of China
- Henan Key Laboratory of Aeronautical Materials and Applied Technologies, Zhengzhou University of Aeronautics, Zhengzhou 450046, People's Republic of China
| | - Junqiao Wang
- School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, People's Republic of China
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Zhang W, Xu Y, Ma J, He J, Ye H, Song J, Chen Y, Xu L. Efficient, Robust, and Flame-Retardant Electrothermal Coatings Based on a Polyhedral Oligomeric Silsesquioxane-Functionalized Graphene/Multiwalled Carbon Nanotube Hybrid with a Dually Cross-Linking Structure. ACS APPLIED MATERIALS & INTERFACES 2023; 15:4430-4440. [PMID: 36629289 DOI: 10.1021/acsami.2c18040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Graphene electrothermal coatings have attracted considerable attention in recent years due to their important application prospects in a broad range of areas. So far, lots of strategies have been explored for producing them. However, these strategies usually involve a complicated process with sophisticated conditions, limiting their scalable applications. Herein, we demonstrate a facile strategy for preparing efficient, robust, and flame-retardant electrothermal coatings from liquid-phase exfoliated graphene, by combining with multiwalled carbon nanotubes (MWCNTs) and polyhedral oligomeric silsesquioxane (POSS) nanoparticles. This relies on the use of a hyperbranched polyethylene copolymer that simultaneously bears UV-reactive moieties and POSS terminal groups. As a stabilizer, the copolymer can effectively promote the exfoliation of both graphite and MWCNTs in common organic solvents under sonication, rendering the POSS-functionalized graphene and MWCNTs well dispersible in the solvent. From their dispersions, POSS-functionalized graphene/MWCNT hybrid electrothermal coatings have been successfully prepared simply by vacuum filtration and UV irradiation under mild conditions. It has been confirmed that a dually cross-linking structure can be formed in the hybrid system. This significantly improves the thermal resistance of resultant coatings, which remain exhibiting a stable work state even at a temperature high as 280 °C without the occurrence of flammation. Meanwhile, this also endows them with excellent electrothermal performance and service stability. At a relatively low voltage, 15 V, the steady temperature can reach 188.4 °C, with a response time < 30 s; after being alternately folded for 2700 cycles or scraped 200 times, the coating still maintains a stable state. In particular, the process involved is relatively simple with mild conditions. With these features, the coatings obtained herein may find their important applications in the area of wearable devices and household heating systems.
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Affiliation(s)
- Wenbin Zhang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou310014, China
- Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Pinghu314200, China
| | - Yuanjie Xu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou310014, China
- Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Pinghu314200, China
| | - Junjie Ma
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou310014, China
- Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Pinghu314200, China
| | - Jie He
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou310014, China
- Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Pinghu314200, China
| | - Huijian Ye
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou310014, China
- Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Pinghu314200, China
| | - Jinwei Song
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou310014, China
- Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Pinghu314200, China
| | - Yulong Chen
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou310014, China
| | - Lixin Xu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou310014, China
- Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Pinghu314200, China
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Deokar G, Reguig A, Tripathi M, Buttner U, Fina A, Dalton AB, Costa PMFJ. Flexible, Air-Stable, High-Performance Heaters Based on Nanoscale-Thick Graphite Films. ACS APPLIED MATERIALS & INTERFACES 2022; 14:17899-17910. [PMID: 35357119 DOI: 10.1021/acsami.1c23803] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Graphite sheets are known to exhibit remarkable performance in applications such as heating panels and critical elements of thermal management systems. Industrial-scale production of graphite films relies on high-temperature treatment of polymers or calendering of graphite flakes; however, these methods are limited to obtaining micrometer-scale thicknesses. Herein, we report the fabrication of a flexible and power-efficient cm2-scaled heater based on a polycrystalline nanoscale-thick graphite film (NGF, ∼100 nm thick) grown by chemical vapor deposition. The stability of these NGF heaters (operational in air over the range 30-300 °C) is demonstrated by a 12-day continuous heating test, at 215 °C. The NGF exhibits a fast switching response and attains a steady peak temperature of 300 °C at a driving bias of 7.8 V (power density of 1.1 W/cm2). This excellent heating performance is attributed to the structural characteristics of the NGF, which contains well-distributed wrinkles and micrometer-wide few-layer graphene domains (characterized using conductive imaging and finite element methods, respectively). The efficiency and flexibility of the NGF device are exemplified by externally heating a 2000 μm-thick Pyrex glass vial and bringing 5 mL of water to a temperature of 96 °C (at 2.4 W/cm2). Overall, the NGF could become an excellent active material for ultrathin, flexible, and sustainable heating panels that operate at low power.
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Affiliation(s)
- Geetanjali Deokar
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Abdeldjalil Reguig
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Manoj Tripathi
- Department of Physics and Astronomy, University of Sussex, Brighton BN1 9RH, U.K
| | - Ulrich Buttner
- Core Labs, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Alberto Fina
- Department of Applied Science and Technology, Polytechnic University of Turin, Alessandria 15121, Italy
| | - Alan B Dalton
- Department of Physics and Astronomy, University of Sussex, Brighton BN1 9RH, U.K
| | - Pedro M F J Costa
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
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Ling Z, Wang F, Shi C, Wang Z, Fan X, Wang L, Zhao J, Jiang L, Li Y, Chen C, Tang D, Song Y. Fast Peel-Off Ultrathin, Transparent, and Free-Standing Films Assembled from Low-Dimensional Materials Using MXene Sacrificial Layers and Produced Bubbles. SMALL METHODS 2022; 6:e2101388. [PMID: 34951147 DOI: 10.1002/smtd.202101388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 12/08/2021] [Indexed: 06/14/2023]
Abstract
Ultrathin, transparent, and free-standing films assembled from low-dimensional nanomaterials (LDMs) are promising for various applications, including transparent heaters and membranes. However, the intact separation of the assembled films, especially those with controlled ultrathin thickness from deposited substrates, is a tremendous challenge, particularly for fast peeling off via self-detaching. Herein, we propose a versatile method to rapidly peel off ultrathin assembled LDM films, including three types of carbon nanotubes, vermiculite, Ag nanowires, and carbon nanotube@graphene, by dissolving the MXene interlayer from the layer-by-layer filtered MXene/LDM Janus films using diluted H2 O2 . The MXene sacrificial interlayers play dual roles, including physical isolation of LDM films from filter membranes and the production of bubbles that buoy ultrathin LDM films, making them free-standing. The integrality and self-detaching rate of the LDM films are determined by the loading and reactivity of the MXene interlayers. The intact LDM films can self-detach in 80 s by dissolving the optimized MXene interlayer and producing bubbles. The as-made free-standing ultrathin LDM films can be transferred to arbitrary substrates and exhibit outstanding performance as transparent heaters. This scalable method provides an efficient and versatile method to produce ultrathin, transparent, and free-standing LDM films and finds new applications for the growing MXene family.
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Affiliation(s)
- Zheng Ling
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Fuqiang Wang
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Changrui Shi
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Zhiyu Wang
- State Key Lab of Fine Chemicals, Liaoning Key Lab for Energy Materials and Chemical Engineering, PSU-DUT Joint Center for Energy Research, Dalian University of Technology, Dalian, 116024, China
| | - Xuanhui Fan
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Lu Wang
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Jiafei Zhao
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Lanlan Jiang
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Yanghui Li
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Cong Chen
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Dawei Tang
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Yongchen Song
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian, 116024, China
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Utech T, Pötschke P, Simon F, Janke A, Kettner H, Paiva M, Zimmerer C. Bio-inspired deposition of electrochemically exfoliated graphene layers for electrical resistance heating applications. NANO EXPRESS 2020. [DOI: 10.1088/2632-959x/abce05] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Electrochemically exfoliated graphene (eeG) layers possess a variety of potential applications, e.g. as susceptor material for contactless induction heating in dynamic electro-magnetic fields, and as flexible and transparent electrode or resistivity heating elements. Spray coating of eeG dispersions was investigated in detail as a simple and fast method to deposit both, thin conducting layers and ring structures on polycarbonate substrates. The spray coating process was examined by systematic variation of dispersion concentration and volume applied to heated substrates. Properties of the obtained layers were characterized by UV-VIS spectroscopy, SEM and Confocal Scanning Microscopy. Electrical conductivity of eeG ring structures was measured using micro-four-point measurements. Modification of eeG with poly(dopamine) and post-thermal treatment yields in the reduction of the oxidized graphene proportion, an increase in electrical conductivity, and mechanical stabilization of the deposited thin layers. The chemical composition of modified eeG layer was analyzed via x-ray photoelectron spectroscopy pointing to the reductive behavior of poly(dopamine). Application oriented experiments demonstrate the direct electric current heating (Joule-Heating) effect of spray-coated eeG layers.
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Tembei SA, Fath El-Bab AM, Hessein A, Abd El-Moneim A. Ultrasonic doping and photo-reduction of graphene oxide films for flexible and high-performance electrothermal heaters. FLATCHEM 2020; 24:100199. [DOI: 10.1016/j.flatc.2020.100199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Hu T, Ye H, Luo Z, Ma J, Zhang B, Zhang X, Song J, Wang Q, Xu L. Efficient exfoliation of UV-curable, high-quality graphene from graphite in common low-boiling-point organic solvents with a designer hyperbranched polyethylene copolymer and their applications in electrothermal heaters. J Colloid Interface Sci 2020; 569:114-127. [PMID: 32105899 DOI: 10.1016/j.jcis.2020.02.068] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/11/2020] [Accepted: 02/16/2020] [Indexed: 10/25/2022]
Abstract
The use of stabilizer with designer structures can effectively promote graphite exfoliation in common solvents to render functionalized graphene desirable for their various applications. Herein, a hyperbranched polyethylene copolymer, HBPE@Py@Acryl, simultaneously bearing multiple pyrene terminal groups and pendant acryloyl moieties has been successfully synthesized from ethylene with a Pd-diimine catalyst based on unique chain walking mechanism. The unique structural design of the HBPE@Py@Acryl makes it capable of effectively promote graphite exfoliation in a series of common, low-boiling-point organic solvents, e.g. CHCl3, to render stable graphene dispersions with concentrations effectively adjustable by changing feed concentrations of graphite and polymer or sonication time. Meanwhile, it can be irreversibly adsorbed on the exfoliated graphene surface based on the π-π interactions between them to concurrently render acryloyl-functionalized graphene free of structural defects, with majority (92.7%) of them having a thickness of 2-3 layers. This allows us to obtain graphene electrothermal films simply by filtration and UV irradiation, which exhibit outstanding stability in use. The action mechanism of the HBPE@Py@Acryl as stabilizer for promoting graphite exfoliation and the role of UV irradiation on improving the stability in use of resulting graphene films have been elucidated.
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Affiliation(s)
- Te Hu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Huijian Ye
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China; Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Pinghu 314212, China.
| | - Zhenggang Luo
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Junjie Ma
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Boyuan Zhang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xuanhe Zhang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jinwei Song
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Qingping Wang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Lixin Xu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China; Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Pinghu 314212, China.
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