Enhanced Heat Transfer of 1-Octadecanol Phase-Change Materials Using Carbon Nanotubes
Solid–liquid phase-change materials (PCMs) have attracted considerable attention in heat energy storage due to their appropriate phase-transition temperatures and high thermal storage density. The primary issues that need to be addressed in the wide application of traditional PCMs are easy leakage d...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-07-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/30/15/3075 |
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| author | Xiuli Wang Qingmeng Wang Xiaomin Cheng Yi Yang Xiaolan Chen Qianju Cheng |
| author_facet | Xiuli Wang Qingmeng Wang Xiaomin Cheng Yi Yang Xiaolan Chen Qianju Cheng |
| author_sort | Xiuli Wang |
| collection | DOAJ |
| description | Solid–liquid phase-change materials (PCMs) have attracted considerable attention in heat energy storage due to their appropriate phase-transition temperatures and high thermal storage density. The primary issues that need to be addressed in the wide application of traditional PCMs are easy leakage during solid–liquid phase transitions, low thermal conductivity, and poor energy conversion function. The heat transfer properties of PCMs can be improved by compounding with carbon materials. Carbon nanotubes (CNTs) are widely used in PCMs for heat storage because of their high thermal conductivity, strong electrical conductivity, and high chemical stability. This study investigates the thermal properties of 1-octadecanol (OD) modified with different diameters and amounts of CNTs using the melt blending method and the ultrasonic dispersion method. The aim is to enhance thermal conductivity while minimizing latent heat loss. The physical phase, microstructure, phase-change temperature, phase-transition enthalpy, thermal stability, and thermal conductivity of the OD/CNTs CPCMs were systematically studied using XRD, FTIR, SEM, DSC, and Hot Disk. Moreover, the heat charging and releasing performance of the OD/CNTs CPCMs was investigated through heat charging and releasing experiments, and the relationship among the composition–structure–performance of the CPCMs was established. |
| format | Article |
| id | doaj-art-e5a30acab37a4889a8409a51d6de88d1 |
| institution | DOAJ |
| issn | 1420-3049 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj-art-e5a30acab37a4889a8409a51d6de88d12025-08-20T03:04:43ZengMDPI AGMolecules1420-30492025-07-013015307510.3390/molecules30153075Enhanced Heat Transfer of 1-Octadecanol Phase-Change Materials Using Carbon NanotubesXiuli Wang0Qingmeng Wang1Xiaomin Cheng2Yi Yang3Xiaolan Chen4Qianju Cheng5School of Mechatronics and Intelligent Manufacturing, Huanggang Normal University, Huanggang 438000, ChinaSchool of Mechatronics and Intelligent Manufacturing, Huanggang Normal University, Huanggang 438000, ChinaSchool of Mechatronics and Intelligent Manufacturing, Huanggang Normal University, Huanggang 438000, ChinaSchool of Mechatronics and Intelligent Manufacturing, Huanggang Normal University, Huanggang 438000, ChinaSchool of Mechatronics and Intelligent Manufacturing, Huanggang Normal University, Huanggang 438000, ChinaSchool of Mechatronics and Intelligent Manufacturing, Huanggang Normal University, Huanggang 438000, ChinaSolid–liquid phase-change materials (PCMs) have attracted considerable attention in heat energy storage due to their appropriate phase-transition temperatures and high thermal storage density. The primary issues that need to be addressed in the wide application of traditional PCMs are easy leakage during solid–liquid phase transitions, low thermal conductivity, and poor energy conversion function. The heat transfer properties of PCMs can be improved by compounding with carbon materials. Carbon nanotubes (CNTs) are widely used in PCMs for heat storage because of their high thermal conductivity, strong electrical conductivity, and high chemical stability. This study investigates the thermal properties of 1-octadecanol (OD) modified with different diameters and amounts of CNTs using the melt blending method and the ultrasonic dispersion method. The aim is to enhance thermal conductivity while minimizing latent heat loss. The physical phase, microstructure, phase-change temperature, phase-transition enthalpy, thermal stability, and thermal conductivity of the OD/CNTs CPCMs were systematically studied using XRD, FTIR, SEM, DSC, and Hot Disk. Moreover, the heat charging and releasing performance of the OD/CNTs CPCMs was investigated through heat charging and releasing experiments, and the relationship among the composition–structure–performance of the CPCMs was established.https://www.mdpi.com/1420-3049/30/15/30751-Octadecanolcarbon nanotubesphase-change materialsthermal management |
| spellingShingle | Xiuli Wang Qingmeng Wang Xiaomin Cheng Yi Yang Xiaolan Chen Qianju Cheng Enhanced Heat Transfer of 1-Octadecanol Phase-Change Materials Using Carbon Nanotubes Molecules 1-Octadecanol carbon nanotubes phase-change materials thermal management |
| title | Enhanced Heat Transfer of 1-Octadecanol Phase-Change Materials Using Carbon Nanotubes |
| title_full | Enhanced Heat Transfer of 1-Octadecanol Phase-Change Materials Using Carbon Nanotubes |
| title_fullStr | Enhanced Heat Transfer of 1-Octadecanol Phase-Change Materials Using Carbon Nanotubes |
| title_full_unstemmed | Enhanced Heat Transfer of 1-Octadecanol Phase-Change Materials Using Carbon Nanotubes |
| title_short | Enhanced Heat Transfer of 1-Octadecanol Phase-Change Materials Using Carbon Nanotubes |
| title_sort | enhanced heat transfer of 1 octadecanol phase change materials using carbon nanotubes |
| topic | 1-Octadecanol carbon nanotubes phase-change materials thermal management |
| url | https://www.mdpi.com/1420-3049/30/15/3075 |
| work_keys_str_mv | AT xiuliwang enhancedheattransferof1octadecanolphasechangematerialsusingcarbonnanotubes AT qingmengwang enhancedheattransferof1octadecanolphasechangematerialsusingcarbonnanotubes AT xiaomincheng enhancedheattransferof1octadecanolphasechangematerialsusingcarbonnanotubes AT yiyang enhancedheattransferof1octadecanolphasechangematerialsusingcarbonnanotubes AT xiaolanchen enhancedheattransferof1octadecanolphasechangematerialsusingcarbonnanotubes AT qianjucheng enhancedheattransferof1octadecanolphasechangematerialsusingcarbonnanotubes |