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Preparation and Thermal Performance of Nano- Graphene Oxide/Mirabilite Composite Phase Change Materials
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Fenglan CHEN1, Xin LIU1, Shengnian TIE1, Chang'an WANG1, 2
Journal of the Chinese Ceramic Society | 2022, 50(6) : 1642 - 1651
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Journal of the Chinese Ceramic Society | 2022, 50(6): 1642-1651
• Research Articles •
Preparation and Thermal Performance of Nano- Graphene Oxide/Mirabilite Composite Phase Change Materials
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Fenglan CHEN1, Xin LIU1, Shengnian TIE1, Chang'an WANG1, 2
Affiliations
  • 1.New Energy Photovoltaic Industry Research Center, Qinghai University, Xining 810016, China
  • 2.School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

    • CHEN Fenglan (1997-), female, Master candidate. E-mail:

About Author:

CHEN Fenglan (1997-), female, Master candidate. E-mail:

Published: 2022-06-20 doi: 10.14062/j.issn.0454-5648.20211153
Outline
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To solve the problem of the shortened cycle life of phase-change latent heat storage due to the large subcooling degree and serious phase stratification of mirabilite phase-change materials, a graphene oxide/mirabilite composite phase-change material (GO-MCPCM) was prepared with Na2SO4·10H2O-Na2CO3·10H2O-NaCl phase-change composite as a matrix and graphene oxide (GO) as additives. The microstructure and properties of GO and GO-MCPCMs were characterized by scanning electron microscopy, transmission electron microscopy Raman spectroscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and thermogravimetry-Differential scanning calorimetry, respectively. The results show that the O/C ratio in oxidized graphene oxide is increased by 65.75%, the structural defect level is increased from 0.224 to 1.088, indicating that the oxidation-treated graphene has no agglomeration phenomenon and has good hydrophilicity and compatibility. The crystalline phase transition temperature of GO-MCPCMs is 23 ℃, the degree of subcooling reduces to 0 ℃, only sodium sulfate decahydrate releases heat, and the crystalline hydrate is Na2SO4·10H2O with a grain length of approximately 2 cm. The maximum latent heat of GO-MCPCMs crystallization at a mass fraction of 0.075% is 156.7 J/g, and the attenuation rate of the latent heat of GO-MCPCMs crystallization at a mass fraction of 0.075% is 4.3% after 500 solid-liquid cycles. Therefore, the addition of GO can improve the thermal stability of the mirabilite composite phase-change material, and graphene oxide/mirabilite composite phase-change material prepared has a good thermal cycle stability and a long service life.

modified nano graphene  /  improved Hummers method  /  mirabilite composite phase change materials  /  structure and thermal property  /  cycle stability
陈凤兰, 柳馨, 铁生年, 汪长安. 纳米氧化石墨烯/芒硝基复合相变材料的制备及其热性能. 硅酸盐学报, 2022 , 50 (6) : 1642 -1651 . DOI: 10.14062/j.issn.0454-5648.20211153
Fenglan CHEN, Xin LIU, Shengnian TIE, Chang'an WANG. Preparation and Thermal Performance of Nano- Graphene Oxide/Mirabilite Composite Phase Change Materials[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (6) : 1642 -1651 . DOI: 10.14062/j.issn.0454-5648.20211153
Appendix
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Year 2022 volume 50 Issue 6
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Article Info
doi: 10.14062/j.issn.0454-5648.20211153
  • Receive Date：2021-12-28
  • Online Date：2026-10-22
  • Published：2022-06-20
Article Data
Affiliations
History
  • Received：2021-12-28
  • Revised：2022-01-15
Funding
Affiliations
    1.New Energy Photovoltaic Industry Research Center, Qinghai University, Xining 810016, China
    2.School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

Corresponding:

TIE Shengnian (1965-), male, Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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