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Tao S, Han J, Xu Y, Fang Z, Ni Y, Fang L, Lu C, Xu Z. Mechanically Switchable Multifunctional Device for Regulating Passive Radiative Cooling and Solar Heating. ACS APPLIED MATERIALS & INTERFACES 2023; 15:17123-17133. [PMID: 36971527 DOI: 10.1021/acsami.2c21961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Energy consumption during cooling and heating poses a great threat to the development of society. Thermal regulation, as switchable cooling and heating in a single platform, is therefore urgently demanded. Herein, a switchable multifunctional device integrating heating, cooling, and latent energy storage was proposed for temperature regulation and window energy saving for buildings. A radiative cooling (RC) emitter, a phase-change (PC) membrane, and a solar-heating (SH) film were connected layer by layer to form a sandwich structure. The RC emitter exhibited selective infrared emission (emissivity in the atmospheric window: 0.81, emissivity outside the atmospheric window: 0.39) and a high solar reflectance (0.92). Meanwhile, the SH film had a high solar absorptivity (0.90). More importantly, both the RC emitter and the SH film displayed excellent wear resistance and UV resistance. The PC layer can control the temperature at a steady state under dynamic weather conditions, which could be verified by indoor and outdoor measurements. The thermal regulation performance of the multifunctional device was also verified by outdoor measurements. The temperature difference between the RC and SH models of the multifunctional device could reach up to 25 °C. The as-constructed switchable multifunctional device is a promising candidate for alleviating the cooling and heating energy consumption and realizing energy saving for windows.
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Affiliation(s)
- Shuang Tao
- College of Materials Science and Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Jingtian Han
- College of Materials Science and Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Ying Xu
- College of Materials Science and Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Zhenggang Fang
- College of Materials Science and Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Yaru Ni
- College of Materials Science and Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, P. R. China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 210009, P. R. China
| | - Liang Fang
- College of Materials Science and Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, P. R. China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 210009, P. R. China
| | - Chunhua Lu
- College of Materials Science and Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, P. R. China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 210009, P. R. China
| | - Zhongzi Xu
- College of Materials Science and Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, P. R. China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 210009, P. R. China
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Broadband dielectric dispersion (20 Hz–1 GHz) and relaxation, crystalline structure, and thermal characterization of PVDF/PMMA blend films. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04632-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Hedau B, Kang BC, Ha TJ. Enhanced Triboelectric Effects of Self-Poled MoS 2-Embedded PVDF Hybrid Nanocomposite Films for Bar-Printed Wearable Triboelectric Nanogenerators. ACS NANO 2022; 16:18355-18365. [PMID: 36040188 DOI: 10.1021/acsnano.2c06257] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Self-poled molybdenum disulfide embedded polyvinylidene fluoride (MoS2@PVDF) hybrid nanocomposite films fabricated by a bar-printing process are demonstrated to improve the output performances of triboelectric nanogenerators (TENGs). Comparative analyses of MoS2@PVDF films with different MoS2 concentrations and the synergic effect based on postannealing at different temperatures were examined to increase the triboelectric open-circuit voltage and the short-circuit current (∼200 V and ∼11.8 μA, respectively). A further comprehensive study of the structural and electrical changes that occur on the surfaces of the proposed hybrid nanocomposite films revealed that both MoS2 incorporation into PVDF and postannealing can individually promote the formation of the β-crystal phase and generate polarity in the PVDF. In addition, MoS2, which provides triboelectric trap states, was found to play a significant role in improving the charge capture capacity of the nanocomposite film and increasing the potential difference between two electrodes of TENGs. The produced electrical energy of the developed wearable TENGs with excellent operational stability for a long duration was utilized to power a variety of mobile smart gadgets in addition to low-power electronic devices. We believe that this study can provide a simple and effective approach to improving the energy-harvesting capabilities of wearable TENGs based on hybrid nanocomposite films.
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Affiliation(s)
- Bhavna Hedau
- Department of Electronic Materials Engineering, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Byeong-Cheol Kang
- Department of Electronic Materials Engineering, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Tae-Jun Ha
- Department of Electronic Materials Engineering, Kwangwoon University, Seoul 01897, Republic of Korea
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Weng Z, Ren Q, Wu M, Zhu X, Li W, Wang L, Zheng W. Lightweight and tough PVDF foams via high‐pressure foam injection molding with core‐back operation. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhengsheng Weng
- Ningbo Key Lab of Polymer Materials Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences Ningbo P.R. China
- Faculty of Materials Metallurgy and Chemistry Jiangxi University of Science and Technology Ganzhou P.R. China
| | - Qian Ren
- Ningbo Key Lab of Polymer Materials Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences Ningbo P.R. China
- University of Chinese Academy of Sciences Beijing P.R. China
| | - Minghui Wu
- Ningbo Key Lab of Polymer Materials Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences Ningbo P.R. China
- Advanced Materials and Composites Department University of Nottingham Ningbo China Ningbo P.R. China
| | - Xiuyu Zhu
- Ningbo Key Lab of Polymer Materials Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences Ningbo P.R. China
- School of Materials Science and Chemical Engineering Ningbo University Ningbo Zhejiang Province P.R. China
| | - Wanwan Li
- Ningbo Key Lab of Polymer Materials Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences Ningbo P.R. China
- School of Materials Science and Chemical Engineering Ningbo University Ningbo Zhejiang Province P.R. China
| | - Long Wang
- Ningbo Key Lab of Polymer Materials Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences Ningbo P.R. China
- University of Chinese Academy of Sciences Beijing P.R. China
| | - Wenge Zheng
- Ningbo Key Lab of Polymer Materials Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences Ningbo P.R. China
- University of Chinese Academy of Sciences Beijing P.R. China
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Li Y, Zheng L, Song L, Han Y, Yang Y, Tan C. Toward Balanced Piezoelectric and Mechanical Performance: 3D Printed Polyvinylidene Fluoride/Carbon Nanotube Energy Harvester with Hierarchical Structure. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yijun Li
- Material Corrosion and Protection Key Laboratory of Sichuan Province, School of Materials Science and Engineering, Sichuan University of Science & Engineering, Zigong 643000, China
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Lang Zheng
- School of Materials Science and Engineering, Xihua University, Chengdu 610039, China
| | - Li Song
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Ying Han
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Yan Yang
- Material Corrosion and Protection Key Laboratory of Sichuan Province, School of Materials Science and Engineering, Sichuan University of Science & Engineering, Zigong 643000, China
| | - Changbin Tan
- Material Corrosion and Protection Key Laboratory of Sichuan Province, School of Materials Science and Engineering, Sichuan University of Science & Engineering, Zigong 643000, China
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Li W, Ren Q, Zhu X, Wu M, Weng Z, Wang L, Zheng W. Enhanced heat resistance and compression strength of microcellular poly (lactic acid) foam by promoted stereocomplex crystallization with added D-Mannitol. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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