N-Octadecane Encapsulated by Assembled BN/GO Aerogels for Highly Improved Thermal Conductivity and Energy Storage Capacity
The rapid development of industry has emphasized the importance of phase change materials (PCMs) with a high latent-heat storage capacity and good thermal stability in promoting sustainable energy solutions. However, the inherent low thermal conductivity and poor thermal-cycling stability of PCMs li...
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| Format: | Article |
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MDPI AG
2023-08-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/13/16/2317 |
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| author | Siyue Hui Rong Ji Huanzhi Zhang Chaowei Huang Fen Xu Lixian Sun Yongpeng Xia Xiangcheng Lin Lei Ma Hongliang Peng Bin Li Yazhen Wang Erhu Yan Pengru Huang |
| author_facet | Siyue Hui Rong Ji Huanzhi Zhang Chaowei Huang Fen Xu Lixian Sun Yongpeng Xia Xiangcheng Lin Lei Ma Hongliang Peng Bin Li Yazhen Wang Erhu Yan Pengru Huang |
| author_sort | Siyue Hui |
| collection | DOAJ |
| description | The rapid development of industry has emphasized the importance of phase change materials (PCMs) with a high latent-heat storage capacity and good thermal stability in promoting sustainable energy solutions. However, the inherent low thermal conductivity and poor thermal-cycling stability of PCMs limit their application. In this study, we constructed three-dimensional (3D) hybrid graphene aerogels (GBA) based on synergistic assembly and cross-linking between GO and modified hexagonal boron nitride (h-BN). Highly thermally conductive GBA was utilized as the supporting optimal matrix for encapsulating OD, and further implied that composite matrix n-octadecane (OD)/GBA composite PCMs were further prepared by encapsulating OD within the GBA structure. Due to the highly thermally conductive network of GBA, the latent heat of the composite PCMs improved to 208.3 J/g, with negligible changes after 100 thermal cycles. In addition, the thermal conductivity of the composite PCMs was significantly enhanced to 1.444 W/(m·k), increasing by 738% compared to OD. These results sufficiently confirmed that the novel GBA with a well-defined porous structure served as PCMs with excellent comprehensive performance offer great potential for thermal energy storage applications. |
| first_indexed | 2024-03-10T23:41:31Z |
| format | Article |
| id | doaj.art-753733b2e3f34153b5507a6b8de83b80 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T23:41:31Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-753733b2e3f34153b5507a6b8de83b802023-11-19T02:27:14ZengMDPI AGNanomaterials2079-49912023-08-011316231710.3390/nano13162317N-Octadecane Encapsulated by Assembled BN/GO Aerogels for Highly Improved Thermal Conductivity and Energy Storage CapacitySiyue Hui0Rong Ji1Huanzhi Zhang2Chaowei Huang3Fen Xu4Lixian Sun5Yongpeng Xia6Xiangcheng Lin7Lei Ma8Hongliang Peng9Bin Li10Yazhen Wang11Erhu Yan12Pengru Huang13School of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaThe rapid development of industry has emphasized the importance of phase change materials (PCMs) with a high latent-heat storage capacity and good thermal stability in promoting sustainable energy solutions. However, the inherent low thermal conductivity and poor thermal-cycling stability of PCMs limit their application. In this study, we constructed three-dimensional (3D) hybrid graphene aerogels (GBA) based on synergistic assembly and cross-linking between GO and modified hexagonal boron nitride (h-BN). Highly thermally conductive GBA was utilized as the supporting optimal matrix for encapsulating OD, and further implied that composite matrix n-octadecane (OD)/GBA composite PCMs were further prepared by encapsulating OD within the GBA structure. Due to the highly thermally conductive network of GBA, the latent heat of the composite PCMs improved to 208.3 J/g, with negligible changes after 100 thermal cycles. In addition, the thermal conductivity of the composite PCMs was significantly enhanced to 1.444 W/(m·k), increasing by 738% compared to OD. These results sufficiently confirmed that the novel GBA with a well-defined porous structure served as PCMs with excellent comprehensive performance offer great potential for thermal energy storage applications.https://www.mdpi.com/2079-4991/13/16/2317phase change materialsgraphene oxideboron nitridethermal conductivityenergy storage capacity |
| spellingShingle | Siyue Hui Rong Ji Huanzhi Zhang Chaowei Huang Fen Xu Lixian Sun Yongpeng Xia Xiangcheng Lin Lei Ma Hongliang Peng Bin Li Yazhen Wang Erhu Yan Pengru Huang N-Octadecane Encapsulated by Assembled BN/GO Aerogels for Highly Improved Thermal Conductivity and Energy Storage Capacity Nanomaterials phase change materials graphene oxide boron nitride thermal conductivity energy storage capacity |
| title | N-Octadecane Encapsulated by Assembled BN/GO Aerogels for Highly Improved Thermal Conductivity and Energy Storage Capacity |
| title_full | N-Octadecane Encapsulated by Assembled BN/GO Aerogels for Highly Improved Thermal Conductivity and Energy Storage Capacity |
| title_fullStr | N-Octadecane Encapsulated by Assembled BN/GO Aerogels for Highly Improved Thermal Conductivity and Energy Storage Capacity |
| title_full_unstemmed | N-Octadecane Encapsulated by Assembled BN/GO Aerogels for Highly Improved Thermal Conductivity and Energy Storage Capacity |
| title_short | N-Octadecane Encapsulated by Assembled BN/GO Aerogels for Highly Improved Thermal Conductivity and Energy Storage Capacity |
| title_sort | n octadecane encapsulated by assembled bn go aerogels for highly improved thermal conductivity and energy storage capacity |
| topic | phase change materials graphene oxide boron nitride thermal conductivity energy storage capacity |
| url | https://www.mdpi.com/2079-4991/13/16/2317 |
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