1
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Chen C, Fu Q, Cao R, Chen Z, Zhang Z, Xia K, You N, Jiang Y, Zhang Y. Experimental Study and Mechanism Analysis of Paraffin/Sisal Composite Phase Change Energy Storage Fiber Prepared by Vacuum Adsorption Method. MATERIALS (BASEL, SWITZERLAND) 2024; 17:467. [PMID: 38255634 PMCID: PMC10817251 DOI: 10.3390/ma17020467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/10/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024]
Abstract
Sisal fiber exhibits a fibrous and porous structure with significant surface roughness, making it highly suitable for storing phase change materials (PCMs). Its intricate morphology further aids in mitigating the risk of PCM leakage. This research successfully employs vacuum adsorption to encapsulate paraffin within sisal fiber, yielding a potentially cost-effective, durable, and environmentally friendly phase change energy storage medium. A systematic investigation was carried out to evaluate the effects of sisal-to-paraffin mass ratio, fiber length, vacuum level, and negative pressure duration on the loading rate of paraffin. The experimental results demonstrate that a paraffin loading rate of 8 wt% can be achieved by subjecting a 3 mm sisal fiber to vacuum adsorption with 16 wt% paraffin for 1 h at -0.1 MPa. Through the utilization of nano-CT imaging enhancement technology, along with petrographic microscopy, this study elucidates the mechanism underlying paraffin storage within sisal fiber during vacuum adsorption. The observations reveal that a substantial portion of paraffin is primarily stored within the pores of the fiber, while a smaller quantity is firmly adsorbed onto its surface, thus yielding a durable phase change energy storage medium. The research findings contribute to both the theoretical foundations and the available practical guidance for the fabrication and implementation of paraffin/sisal fiber composite phase change energy storage mediums.
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Affiliation(s)
- Chun Chen
- Jiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China; (C.C.); (Q.F.)
| | - Qi Fu
- Jiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China; (C.C.); (Q.F.)
| | - Ruilin Cao
- Jiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China; (C.C.); (Q.F.)
| | - Zhenzhong Chen
- Jiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China; (C.C.); (Q.F.)
| | - Zedi Zhang
- Jiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China; (C.C.); (Q.F.)
| | - Kailun Xia
- Jiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China; (C.C.); (Q.F.)
| | - Nanqiao You
- School of Civil Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Yifan Jiang
- Jiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China; (C.C.); (Q.F.)
| | - Yamei Zhang
- Jiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China; (C.C.); (Q.F.)
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2
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Dong L, Li Y, Li J, Guan Y, Chen X, Zhang D, Wang Z. Mesoporous carbon hollow spheres encapsulated phase change material for efficient emulsification of high-viscosity oil. JOURNAL OF HAZARDOUS MATERIALS 2023; 451:131112. [PMID: 36871462 DOI: 10.1016/j.jhazmat.2023.131112] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 02/16/2023] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
Low fluidity of high-viscosity oil usually hinders its emulsification. Facing this dilemma, we proposed a novel functional composite phase change material (PCM) with in situ heating feature coupled with emulsification capability. This composite PCM consisting of mesoporous carbon hollow spheres (MCHS) and polyethylene glycol (PEG) shows excellent photothermal conversion ability, thermal conductivity and Pickering emulsification. Compared with the currently reported composite PCMs, the unique hollow cavity structure of MCHS not only enables excellent encapsulation of PCM, but also protects the PCM from leaking and direct contact with oil phase. Importantly, the thermal conductivity of 80% PEG@MCHS-4 was determined to be 1.372 W/m·K, which was 2.887 times superior to that of pure PEG. MCHS endows the composite PCM with excellent light absorption capacity and photothermal conversion efficiency. The viscosity of high-viscosity oil can be facilely reduced in situ once it comes into contact with the heat-storing PEG@MCHS, thus the emulsification is greatly enhanced. In view of the in situ heating feature and emulsification capability of PEG@MCHS, this work puts forward a novel solution to address the problem of emulsification of high-viscosity oil through the integration of MCHS and PCM.
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Affiliation(s)
- Limei Dong
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, PR China
| | - Yiming Li
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, PR China.
| | - Junfeng Li
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, PR China
| | - Yihao Guan
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, PR China
| | - Xiuping Chen
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, PR China
| | - Dan Zhang
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, PR China
| | - Zhining Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
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3
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Sustainable Kapok Fiber-Derived Carbon Microtube as Broadband Microwave Absorbing Material. MATERIALS 2022; 15:ma15144845. [PMID: 35888312 PMCID: PMC9321174 DOI: 10.3390/ma15144845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/23/2022] [Accepted: 07/05/2022] [Indexed: 12/31/2022]
Abstract
The design of hierarchical structures from biomass has become one of the hottest subjects in the field of microwave absorption due to its low cost, vast availability and sustainability. A kapok-fiber-derived carbon microtube was prepared by facile carbonization, and the relation between the structure and properties of the carbonized kapok fiber (CKF) was systematically investigated. The hollow tubular structures afford the resulting CKF composites with excellent microwave-absorbing performance. The sample with a 30 wt.% loading of CKF in paraffin demonstrates the strongest microwave attenuation capacity, with a minimum reflection loss of −49.46 dB at 16.48 GHz and 2.3 mm, and an optimized effective absorption bandwidth of 7.12 GHz (10.64–17.76 GHz, 2.3 mm) that covers 34% of the X-band and 96% of the Ku-band. Further, more than 90% of the incident electromagnetic wave in the frequency from 4.48 GHz to 18.00 GHz can be attenuated via tuning the thickness of the CKF-based absorber. This study outlines a foundation for the development of lightweight and sustainable microwave absorbers with a high absorption capacity and broad effective absorption bandwidth.
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Wu X, Shi S, Wang Y, Tang B, Guo L, Gao Y, Jiang T, Yang K, Sun K, Zhao Y, Li W, Yu J. Polyethylene Glycol-Calcium Chloride Phase Change Materials with High Thermal Conductivity and Excellent Shape Stability by Introducing Three-Dimensional Carbon/Carbon Fiber Felt. ACS OMEGA 2021; 6:33033-33045. [PMID: 34901655 PMCID: PMC8655943 DOI: 10.1021/acsomega.1c05186] [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: 09/18/2021] [Accepted: 11/16/2021] [Indexed: 06/14/2023]
Abstract
The low thermal conductivity and poor shape stability of phase change materials (PCMs) have seriously restricted their applications in energy storage and energy saving. In this paper, poly(ethylene glycol)-calcium chloride/carbon/carbon fiber felt (PEG-CaCl2/CCF) PCMs were fabricated by a liquid-phase impregnation-vacuum drying-hot compression molding method with carbon/carbon fiber felt as the three-dimensional (3D) thermal skeleton and PEG-CaCl2 as the polymer PCM matrix. PCMs were heated and compressed by the compression confinement method to improve the contact area between 3D skeleton carbon fibers. The carbon fibers in PCMs presented a 3D (X-Y-Z) network structure and the fiber arrangement was anisotropic, which were beneficial to improve the thermal conductivity of PCMs in the fiber direction. The compression confinement can improve the contact area between the fibers in the 3D skeleton. As a result, the thermal conductivity of PEG-CaCl2/CCF PCMs can reach 3.35 W/(m K) (in-plane) and 1.94 W/(m K) (through-plane), about 985 and 571% of that of PEG-CaCl2, respectively. Due to the complexation of PEG and CaCl2 and the 3D skeleton support of carbon fiber felt, PCMs have excellent shape stability. The paper may provide some suggestions for the preparation of high thermal conductivity and excellent shape stability PCMs.
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Affiliation(s)
- Xinfeng Wu
- College
of Ocean Science and Engineering, Shanghai
Maritime University, Shanghai 201306, China
| | - Shanshan Shi
- College
of Ocean Science and Engineering, Shanghai
Maritime University, Shanghai 201306, China
| | - Ying Wang
- Merchant
Marine College, Shanghai Maritime University, Shanghai 201306, China
| | - Bo Tang
- Hangzhou
Vulcan New Materials Technology Co., Ltd., Hangzhou 311255, China
| | - Leyang Guo
- Merchant
Marine College, Shanghai Maritime University, Shanghai 201306, China
| | - Yuan Gao
- College
of Ocean Science and Engineering, Shanghai
Maritime University, Shanghai 201306, China
| | - Tao Jiang
- Merchant
Marine College, Shanghai Maritime University, Shanghai 201306, China
| | - Ke Yang
- School
of Materials Science and Engineering, Central
South University, Changsha 410083, China
| | - Kai Sun
- College
of Ocean Science and Engineering, Shanghai
Maritime University, Shanghai 201306, China
| | - Yuantao Zhao
- Merchant
Marine College, Shanghai Maritime University, Shanghai 201306, China
| | - Wenge Li
- Merchant
Marine College, Shanghai Maritime University, Shanghai 201306, China
| | - Jinhong Yu
- Key
Laboratory of Marine Materials and Related Technologies, Zhejiang
Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology & Engineering,
Chinese Academy of Sciences, Ningbo 315201, China
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5
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Du X, Jin L, Deng S, Zhou M, Du Z, Cheng X, Wang H. Recyclable, Self-Healing, and Flame-Retardant Solid-Solid Phase Change Materials Based on Thermally Reversible Cross-Links for Sustainable Thermal Energy Storage. ACS APPLIED MATERIALS & INTERFACES 2021; 13:42991-43001. [PMID: 34486880 DOI: 10.1021/acsami.1c14862] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Conventional polymeric phase change materials (PCMs) exhibit good shape stability, large energy storage density, and satisfactory chemical stability, but they cannot be recycled and self-healed due to their permanent cross-linking structure. Additionally, the high flammability of organic PCMs seriously restricts their applications for thermal energy storage (TES). Therefore, it is urgently required to explore PCM composites exhibiting superior recyclability, good self-healing capability, and excellent flame retardancy simultaneously. Herein, tri-maleimide end-capped cyclotriphosphazene flame retardant (TMCTP) was synthesized via the nucleophilic substitution between 1,3,5,2,4,6-triazatriphosphorine-2,2,4,4,6,6-hexachloride and N-(2-hydroxyethyl)maleimide. Then, novel dynamically cross-linked PCM composites (FPCMs) with superior recyclability, good self-healing capability, and excellent flame retardancy were fabricated by bonding PEG and TMCTP to polymeric skeleton via reversible furan/maleimide Diels-Alder (DA) reaction. TMCTP, which covalently and dynamically binding in the polymeric FPCMs, acted not only as an efficient flame retardant for reducing the flammability of PCM composites but also as dynamic cross-linking skeletons for thermally induced self-healing and recycling. Differential scanning calorimetry (DSC) analysis confirmed the reversible energy storage and release ability of FPCMs. Due to its reversible DA covalent bonds, the introduction of TMCTP endowed the FPCMs with considerably increased self-healing efficiency (up to 93.1%) and recyclability efficiency (94.6%). Moreover, with the introduction of TMCTP into FPCMs, the heat release rate (HRR) and total heat release (THR) significantly decreased, while the char residue and limiting oxygen index (LOI) value increased, confirming that the flame retardancy of FPCMs greatly improved. Hence, the synthesized FPCMs show enormous potential in TES applications.
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Affiliation(s)
- Xiaosheng Du
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
- The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Linzhao Jin
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Sha Deng
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Mi Zhou
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Zongliang Du
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
- The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Xu Cheng
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
- The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Haibo Wang
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
- The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China
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Song J, Cai Y, Du M, Hou X, Huang F, Wei Q. 3D Lamellar Structure of Biomass-Based Porous Carbon Derived from Towel Gourd toward Phase Change Composites with Thermal Management and Protection. ACS APPLIED BIO MATERIALS 2020; 3:8923-8932. [PMID: 35019568 DOI: 10.1021/acsabm.0c01196] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The practical application of shape-stable phase change composites (PCCs) is beneficial to thermal energy management and energy conservation due to their superior properties. A shape-stable PCC was fabricated by incorporating poly(ethylene glycol) (PEG) with biomass-based porous carbon that was produced via freeze-drying and carbonization using a low-cost and environmentally friendly fresh towel gourd. The towel gourd derived porous carbon with the characteristics of porosity, unique three-dimensional (3D) lamellar structure, and high specific surface area allowed a high encapsulation capacity (up to 94.5 wt %) for PEG. Structural morphologies, as well as the properties of latent heat storage, thermal reliability, thermal energy management, and thermal protection ability of the fabricated shape-stable PCC, were investigated. The micromorphologies revealed that PEG molecular chains were arranged in a 3D lamellar tissue structure. The shape-stable PCC demonstrated excellent thermal reliability and a high melting latent heat of ∼164.3 J/g. The analysis of infrared thermal images indicated that the shape-stable PCC exhibited remarkable strengths in thermal energy management. The result of the thermal insulation simulation experiment proved that the shape-stable PCC had superior thermal protection ability. This study provided an innovative strategy for the design and development of shape-stable PCCs for great potential in heat-insulating protective textiles, solar thermal energy storage, energy-saving buildings, and infrared stealth of military targets.
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Affiliation(s)
- Jiayin Song
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, No. 1800, Lihu Dadao, Wuxi, Jiangsu 214122, People's Republic of China
| | - Yibing Cai
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, No. 1800, Lihu Dadao, Wuxi, Jiangsu 214122, People's Republic of China
| | - Mingyue Du
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, No. 1800, Lihu Dadao, Wuxi, Jiangsu 214122, People's Republic of China
| | - Xuebin Hou
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, No. 1800, Lihu Dadao, Wuxi, Jiangsu 214122, People's Republic of China
| | - Fenglin Huang
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, No. 1800, Lihu Dadao, Wuxi, Jiangsu 214122, People's Republic of China
| | - Qufu Wei
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, No. 1800, Lihu Dadao, Wuxi, Jiangsu 214122, People's Republic of China
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Atinafu DG, Chang SJ, Kim S. Infiltration properties of n-alkanes in mesoporous biochar: The capacity of smokeless support for stability and energy storage. JOURNAL OF HAZARDOUS MATERIALS 2020; 399:123041. [PMID: 32521320 DOI: 10.1016/j.jhazmat.2020.123041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/18/2020] [Accepted: 05/24/2020] [Indexed: 06/11/2023]
Abstract
Biochar, also named biocarbon, is a solid particulate material produced from the thermal decomposition of biomass at moderate temperatures. It has progressively become the topic of scientific interest in energy storage and conversion applications due to its affordability, environment friendliness, and structural tunability. In this study, biochar (obtained 600 °C pyrolysis) was introduced as phase change materials (PCMs) support. Three different n-alkanes (such as dodecane, tetradecane, and octadecane) are used as PCMs. The PCMs were infiltrated in the biochar network via the vacuum impregnation method. Among the biochar/n-alkane composites, one from octadecane exhibited a high latent heat storage capacity of 91.5 kJ/kg, 15.7 % and 25.9 % higher than that of dodecane and tetradecane-based composites, respectively. The molecular length of the PCMs and intermolecular interaction between the functional groups play an imperative role. The infiltration ratio of PCM in the biochar reached 50.1 % with improved thermal stability and chemical compatibility. This is attributed to the favorable morphological and structural properties (e.g., large BET surface area and mesopore structure) of the biochar that resides the n-alkanes found in the nanosized chain length. Hence, this report will lay a foundation for the application of biochars in thermal energy management systems.
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Affiliation(s)
- Dimberu G Atinafu
- Department of Architecture and Architectural Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Seong Jin Chang
- Department of Architecture and Architectural Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Sumin Kim
- Department of Architecture and Architectural Engineering, Yonsei University, Seoul 03722, Republic of Korea.
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8
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Chen X, Tang Z, Chang Y, Gao H, Cheng P, Tao Z, Lv J. Toward Tailoring Chemistry of Silica-Based Phase Change Materials for Thermal Energy Storage. iScience 2020; 23:101606. [PMID: 33205018 PMCID: PMC7648163 DOI: 10.1016/j.isci.2020.101606] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Efficient thermal energy harvesting using phase change materials (PCMs) has great potential for thermal energy storage and thermal management applications. Benefiting from these merits of pore structure diversity, convenient controllability, and excellent thermophysical stability, SiO2-based composite PCMs have comparatively shown more promising prospect. In this regard, the microstructure-thermal property correlation of SiO2-based composite PCMs is still unclear despite the significant achievements in structural design. To enrich the fundamental understanding on the correlations between the microstructure and the thermal properties, we systematically summarize the state-of-the-art advances in SiO2-based composite PCMs for tuning thermal energy storage from the perspective of tailoring chemistry strategies. In this review, the tailoring chemistry influences of surface functional groups, pore sizes, dopants, single shell, and hybrid shells on the thermal properties of SiO2-based composite PCMs are systematically summarized and discussed. This review aims to provide in-depth insights into the correlation between structural designs and thermal properties, thus showing better guides on the tailor-made construction of high-performance SiO2-based composite PCMs. Finally, the current challenges and future recommendations for the tailoring chemistry are also highlighted.
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Affiliation(s)
- Xiao Chen
- Institute of Advanced Materials, Beijing Normal University, Beijing 100875, PR China
| | - Zhaodi Tang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Yueqi Chang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Hongyi Gao
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Piao Cheng
- Institute of Advanced Materials, Beijing Normal University, Beijing 100875, PR China
| | - Zhang Tao
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Junjun Lv
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
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Ishak S, Mandal S, Lee HS, Singh JK. Microencapsulation of stearic acid with SiO 2 shell as phase change material for potential energy storage. Sci Rep 2020; 10:15023. [PMID: 32929104 PMCID: PMC7490278 DOI: 10.1038/s41598-020-71940-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 08/20/2020] [Indexed: 12/02/2022] Open
Abstract
Stearic acid (SA) is being used as phase change material (PCM) in energy storage applications. In the present study, the microencapsulation of SA with SiO2 shell was carried out by sol–gel method. Different amounts of SA (5, 10, 15, 20, 30 and 50 g) were taken against 10 ml of tetraethyl orthosilicate (TEOS) for encapsulation. The synthesized microencapsulated PCM (MEPCM) were characterized by Fourier transform infrared spectroscope (FT-IR), X-Ray diffraction (XRD), X-Ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The characterization results showed that SA was successfully encapsulated by SiO2. Thermogravimetric analysis (TGA) exhibited better thermal stability of the MEPCM than SA. The enthalpy values of MEPCM were found to be unchanged even after 30 heating–cooling cycles by differential scanning calorimetry (DSC). The latent heats of melting and solidification of 50 g SA containing MEPCM were found to be highest i.e. 182.53 J/g and 160.12 J/g, respectively among all microencapsulated samples. The encapsulation efficiency values were calculated using thermal data and the efficiency was found to be highest i.e. 86.68% in the same sample.
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Affiliation(s)
- Shafiq Ishak
- Department of Architectural Engineering, Hanyang University, 1271 Sa 3-dong, Sangnok-gu, Ansan, 15588, Korea
| | - Soumen Mandal
- Intelligent Construction Automation Center, Kyungpook National University, 80, Daehak-ro, Buk-gu, Daegu, 41566, Korea
| | - Han-Seung Lee
- Department of Architectural Engineering, Hanyang University, 1271 Sa 3-dong, Sangnok-gu, Ansan, 15588, Korea.
| | - Jitendra Kumar Singh
- Innovative Durable Building and Infrastructure Research Center, Department of Architectural Engineering, Hanyang University, 1271 Sa-3-dong, Sangnok-gu, Ansan, 15588, Korea.
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10
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Wu H, Deng S, Shao Y, Yang J, Qi X, Wang Y. Multiresponsive Shape-Adaptable Phase Change Materials with Cellulose Nanofiber/Graphene Nanoplatelet Hybrid-Coated Melamine Foam for Light/Electro-to-Thermal Energy Storage and Utilization. ACS APPLIED MATERIALS & INTERFACES 2019; 11:46851-46863. [PMID: 31773943 DOI: 10.1021/acsami.9b16612] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Strong rigidity, low thermal conductivity, and short of multi-driven capabilities of form-stable phase change materials (FSPCMs) have limited their practical utilization. Herein, we report a shape-adaptable FSPCM with the coinstantaneous light/electro-driven shape memory properties and light/electro-to-thermal energy storage performance. The FSPCM is fabricated by incorporating the poly(ethylene glycol) (PEG) into the cellulose nanofiber/graphene nanoplatelet (GNP) hybrid-coated melamine foam (CG@MF). The CG@MF/PEG FSPCMs show a good encapsulation effect, enhanced thermal conductivity, and large melting enthalpy (178.9 J g-1). Due to the high elasticity of MF and the excellent photothermal conversion and electrical conductivity of the GNP network, the CG@MF/PEG FSPCMs exhibit a remarkable light/electro-driven shape memory effect by activating the phase change process of PEG. Meanwhile, the CG@MF/PEG FSPCMs can effectively convert light or electric energy into heat energy and reposit the converted energy during the phase change process. Furthermore, the CG@MF/PEG FSPCMs possess excellent multiresponsive self-adhesion properties. A light-sensitive, shape-adaptable, and thermal-insulating container is further explored. This study provides routes toward the development of multiresponsive shape-adaptable FSPCMs for energy storage applications.
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Affiliation(s)
- Haiyan Wu
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering , Southwest Jiaotong University , Chengdu 610031 , China
| | - Sha Deng
- College of Biomass Science and Engineering , Sichuan University , Chengdu 610017 , China
| | - Yaowen Shao
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering , Southwest Jiaotong University , Chengdu 610031 , China
| | - Jinghui Yang
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering , Southwest Jiaotong University , Chengdu 610031 , China
| | - Xiaodong Qi
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering , Southwest Jiaotong University , Chengdu 610031 , China
| | - Yong Wang
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering , Southwest Jiaotong University , Chengdu 610031 , China
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11
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Yi L, Wang Y, Fang Y, Zhang M, Yao J, Wang L, Marek J. Development of core–sheath structured smart nanofibers by coaxial electrospinning for thermo-regulated textiles. RSC Adv 2019; 9:21844-21851. [PMID: 35518892 PMCID: PMC9066422 DOI: 10.1039/c9ra03795k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 07/01/2019] [Indexed: 11/21/2022] Open
Abstract
Fabrication of core–sheath structured smart nanofibers loaded with CsxWO3 by coaxial electrospinning which demonstrate high heat capacity and NIR absorbance.
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Affiliation(s)
- Liqiang Yi
- Silk Institute
- College of Materials and Textiles
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Yan Wang
- Silk Institute
- College of Materials and Textiles
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Yini Fang
- Silk Institute
- College of Materials and Textiles
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Ming Zhang
- Silk Institute
- College of Materials and Textiles
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Juming Yao
- Silk Institute
- College of Materials and Textiles
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Lina Wang
- Silk Institute
- College of Materials and Textiles
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Jaromir Marek
- Institute for Nanomaterials, Advanced Technologies and Innovations
- Technical University of Libere
- Czech Republic
| |
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