A thermally stable phase change material with high latent heat based on an oxalic acid dihydrate/boric acid binary eutectic system
A thermally stable phase change material with high latent heat based on an oxalic acid dihydrate/boric acid binary eutectic system
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基于二水草酸/硼酸二元共晶体系的高潜热热稳定相变材料
DOI：
10.1016/j.solmat.2017.04.008
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发表时间：
2017-08
影响因子：
6.9
通讯作者：
Jia Yongzhong
中科院分区：
文献类型：
--
作者：
Xie Shaolei;Sun Jinhe;Wang Zhao;Liu Shang;Han Lipeng;Ma Guixiang;Jing Yan;Jia Yongzhong
研究了草酸二水合物/硼酸（OCD-BA）二元低共熔混合物作为一种新型相变材料，该混合物含有88wt%OCD和12wt%BA。建立了二元体系的固液相图，得到OCD-BA二元低共熔混合物的相变温度为87.3 °C，熔化和结晶过程的潜热分别为344 J g− 1和262 J g−1。采用差示扫描量热法（DSC）、傅里叶变换红外光谱（FT-IR）、X射线衍射（XRD）和扫描电子显微镜-能量色散谱（SEM-EDS）研究了其热物理性能和热稳定性。其热稳定性进行了研究，通过100个循环，使用DSC和1000热循环试验，使用制冷和加热循环器（RHC）在原位。在1000次加热/冷却循环后，熔化潜热仍然超过280 J g− 1。热释放平台在70.0 °C以上持续5 h，根据T-历史方法计算的过冷度仅为1.0 °C。这些结果表明，新制备的OCD-BA二元低共熔混合物是一种潜在的相变储热罐。
An oxalic acid dihydrate/boric acid (OCD-BA) binary eutectic mixtures containing 88 wt% OCD and 12 wt% BA was investigated as a novel phase change material (PCM) with high latent heat and thermal stability. The solid-liquid phase diagram of binary systems is established, and the phase change temperature of OCD-BA binary eutectic mixture is 87.3 °C and the latent heats of the melting and crystallization process are 344 J g−1and 262 J g−1, respectively. Its thermophysical properties and thermal stability were studied using differential scanning calorimetry (DSC), Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), and Scanning electron microscopy-Energy dispersive spectroscopy (SEM-EDS). Its thermal stability was investigated in situ through 100 cycles using DSC and 1000 thermal cycling tests using Refrigerated and heating circulators (RHC). The latent heat of melting still exceed 280 J g−1after 1000 heating/cooling cycles. The heat release platform sustained 5 h at more than 70.0 °C, and the degree of supercooling was only 1.0 °C according to T-history method. These results indicate that the newly prepared OCD-BA binary eutectic mixture is a potential PCM for thermal storage tanks.
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蓄热用二水草酸循环稳定性的测试与改进
影响因子：
3.5
作者：
Han Lipeng;Xie Shaolei;Ma Guixiang;Sun Jinhe;Jia Yongzhong;Jing Yan
通讯作者：
Jing Yan
影响因子：
2.6
作者：
Dongwei Wei;Sai-Nan Han;Baohe Wang
通讯作者：
Dongwei Wei;Sai-Nan Han;Baohe Wang
影响因子：
6.9
作者：
Hong, Y;Ge, XS
通讯作者：
Ge, XS
DOI：
10.1016/j.jct.2013.01.019
发表时间：
2013-05
期刊：
The Journal of Chemical Thermodynamics
影响因子：
--
作者：
Dongwei Wei;Xiaorong Zhang;Hui Li
通讯作者：
Dongwei Wei;Xiaorong Zhang;Hui Li
影响因子：
8.3
作者：
Madjid Sarvghad-Moghaddam;R. Parvizi;A. Davoodi;M. Haddad-Sabzevar;Amin Imani
通讯作者：
Madjid Sarvghad-Moghaddam;R. Parvizi;A. Davoodi;M. Haddad-Sabzevar;Amin Imani