Thermal conductivity enhancement of phase change materials with 3D porous diamond foam for thermal energy storage
Thermal conductivity enhancement of phase change materials with 3D porous diamond foam for thermal energy storage
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用于热能存储的 3D 多孔金刚石泡沫增强相变材料的导热性
DOI：
10.1016/j.apenergy.2018.10.036
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发表时间：
2019
期刊：
影响因子：
11.2
通讯作者：
Gan Xueping
中科院分区：
文献类型：
--
作者：
Zhang Long;Zhou Kechao;Wei Quiping;Ma Li;Ye Wentao;Li Haichao;Zhou Bo;Yu Zhiming;Lin Cheng Te;Luo Jingting;Gan Xueping
对于使用相变材料(PCM)的储能应用，功率容量往往受到低导热系数(λPCM)的限制。本文采用模板定向化学气相沉积(CVD)方法在铬改性泡沫铜表面制备了三维(3D)金刚石泡沫(DF)，作为石蜡基相变材料的高导电性填料。结果表明，泡沫衬底被高质量的连续金刚石膜完全覆盖。热响应速度快于泡沫铜(CF)和铜盘，但仅略慢于相同厚度的独立式金刚石盘。在复合相变材料中加入体积分数仅为1.3%的连通泡沫金刚石，比纯石蜡、碳纤维/石蜡和金刚石颗粒增强石蜡的导热系数分别提高25.8倍、1.62倍和13.88倍。导热性能的显著提高主要归功于具有高导热系数的相互连接的金刚石网络，有效地减少了声子-声子和声子-边界的散射。此外，DF/石蜡复合材料相变材料具有较好的形状稳定性和较快的充热速率，其潜热为124.7 J/g，结合了金刚石的优良性能和三维互连结构的固有优势，使其在高效散热和储能领域成为潜在的成分或作为增强体。
For thermal energy storage applications using phase change materials (PCMs), the power capacity is often limited by the low thermal conductivity (λPCM). Here, a three-dimensional (3D) diamond foam (DF) is proposed by template-directed chemical vapor deposition (CVD) on Cr-modified Cu foam as highly conductive filler for paraffin-based PCM. Results showed the foam substrate was completely covered by continuous diamond films with high quality. And it showed a faster thermal response than that of Cu foam (CF) and Cu disc, while only a little slower than that of free-standing diamond disc with the same thickness. The incorporation of interconnected diamond foam with the diamond volume fraction of only 1.3% in the composite phase change material represented a great thermal conductivity enhancement over the pure paraffin, CF/paraffin and diamond particles reinforced paraffin by a factor of 25.8, 1.62 and 13.88, respectively. The great enhancement of the thermal conductive property was mainly attributed to interconnected diamond networks with high thermal conductivity, which effectively reduced the phonon-phonon and phonon-boundary scatterings. Besides, the DF/paraffin composite PCM exhibited an improved shape stability and a fast heat charging rate with the latent heat of 124.7 J/g. The marriage of the excellent properties of diamond and the inherent advantages of the 3D interconnected structure makes the diamond foams potential components or act as reinforcements in the field of high-efficiency heat dissipation and thermal energy storage.
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影响因子：
11.2
作者：
Zhang, Zhengguo;Zhang, Ni;Fang, Yutang
通讯作者：
Fang, Yutang
影响因子：
6.7
作者：
Bo Zhou;Zhiming Yu;Qiu-ping Wei;Hangyu Long;Youneng Xie;Yijia Wang
通讯作者：
Bo Zhou;Zhiming Yu;Qiu-ping Wei;Hangyu Long;Youneng Xie;Yijia Wang
影响因子：
4.1
作者：
J. Graebner;H. Altmann;N. Balzaretti;R. Campbell;H. Chae;A. Degiovanni;R. Enck;A. Feldman;D. Fournier;J. Fricke;J. Goela;K. J. Gray;Y. Gu;I. Hatta;T. Hartnett;R. Imhof;R. Kato;P. Koidl;P. Kuo;T. Lee;D. Maillet;B. Remy;J. Roger;D. Seong;R. Tye;H. Verhoeven;E. Wörner;J. Yehoda;R. Zachai;B. Zhang
通讯作者：
J. Graebner;H. Altmann;N. Balzaretti;R. Campbell;H. Chae;A. Degiovanni;R. Enck;A. Feldman;D. Fournier;J. Fricke;J. Goela;K. J. Gray;Y. Gu;I. Hatta;T. Hartnett;R. Imhof;R. Kato;P. Koidl;P. Kuo;T. Lee;D. Maillet;B. Remy;J. Roger;D. Seong;R. Tye;H. Verhoeven;E. Wörner;J. Yehoda;R. Zachai;B. Zhang
影响因子：
11.2
作者：
Ling, Ziye;Wang, Fangxian;Zhang, Zhengguo
通讯作者：
Zhang, Zhengguo
影响因子：
9.5
作者：
H. Zanin;Paul W May;D. Fermín;D. Plana;Sara M. C. Vieira;William I. Milne;E. J. Corat
通讯作者：
H. Zanin;Paul W May;D. Fermín;D. Plana;Sara M. C. Vieira;William I. Milne;E. J. Corat