收稿日期: 2024-03-05
网络出版日期: 2024-12-31
Research on preparation of nano-bismuth oxide-enhanced chloride/magnesium oxide composites and their thermophysical properties
Received date: 2024-03-05
Online published: 2024-12-31
为开发一种低成本、热性能好的复合相变储热材料。以NaCl、KCl、CaCl2为相变材料，MgO为载体材料，纳米Bi2O3为导热增强剂，通过混合烧结法制备出了氯化盐/氧化镁基复合相变储热材料。通过X射线衍射、扫描电子显微镜、同步热分析仪、DRL导热仪等方式，进行了导热增强剂对氯化盐/氧化镁基复合相变储热材料的化学相容性、微观结构、比热容、导热系数的测试与表征。结果表明，导热增强剂纳米氧化铋含量为2％（质量分数）时热物性最好，比热容为1.16 J/（g·K），储热密度为232.93 J/g，导热系数为1.61 W/（m·K）。相较于未添加导热增强剂的比热容提高40%，导热系数提高55%，储热密度提高9%。所制备的氯化盐/氧化镁复合相变储热材料，使用过程中始终保持固定形态，比热容和导热系数有较大提高，在高温状态下具有良好的热稳定性，该研究为高温储热领域提供了一种可供选用的低成本且综合性能良好的储热材料，在热能储存系统具有广阔的应用前景。
王晨 , 何伟 , 孙梦媛 . 纳米氧化铋强化氯化盐/氧化镁复合材料制备及热物性研究[J]. 无机盐工业, 2024 , 56(12) : 120 -126 . DOI: 10.19964/j.issn.1006-4990.2024-0122
In order to develop a low-cost，good thermal performance of the composite phase change heat storage material，NaCl，KCl，CaCl2 were used as phase change materials，MgO as carrier materials，and nano Bi2O3 as thermal conductivity enhancers，chloride/magnesium oxide-based composite phase change thermal storage materials were prepared by mixed sintering method.The chemical compatibility，microstructure，specific heat capacity and thermal conductivity of the chloride/magnesium oxide-based composite phase change heat storage materials by the thermal enhancer were tested and characterized by X-ray diffraction，scanning electron microscopy，synchronous thermal analyzer and DRL thermal conductivity.The results showed that the thermal physical properties of the thermal enhancer nano-bismuth oxide were the best when the content of 2%（mass fraction），the specific heat capacity was 1.16 J/（g·K），the heat storage density was 232.93 J/g，and the thermal conductivity was 1.61 W/（m·K）.Compared with the addition of thermal conductivity enhancer，the specific heat capacity was increased by 40%，the thermal conductivity was increased by 55%，and the heat storage density was increased by 9%.The prepared chloride/magnesium oxide composite phase change heat storage material always maintained a fixed form during use，the specific heat capacity and thermal conductivity were greatly improved，and it had good thermal stability at high temperatures.This study provided a low-cost and high-performance thermal storage material for the field of high-temperature thermal storage，which had broad application prospects in thermal energy storage systems.
| [1] | SANG Lixia， LI Feng， XU Yongwang.Form-stable ternary carbonates/MgO composite material for high temperature thermal energy storage［J］.Solar Energy，2019，180：1-7. |
| [2] | GUO Qiang， WANG Tao.Preparation and characterization of sodium sulfate/silica composite as a shape-stabilized phase change material by sol-gel method［J］.Chinese Journal of Chemical Engineering，2014，22（3）：360-364. |
| [3] | YE Feng， GE Zhiwei， DING Yulong，et al.Multi-walled carbon nanotubes added to Na2CO3/MgO composites for thermal energy storage［J］.Particuology，2014，15：56-60. |
| [4] | 王辉祥.电石渣复合相变储热材料制备及性能研究［D］.北京：北京建筑大学，2023. |
| WANG Huixiang.Study on preparation and properties of carbide slag composite phase change heat storage material［D］.Beijing：Beijing University of Civil Engineering and Architecture，2023. | |
| [5] | DENG Yong， LI Jinhong， QIAN Tingting，et al.Preparation and characterization of KNO3/diatomite shape-stabilized composite phase change material for high temperature thermal energy storage［J］.Journal of Materials Science & Technology，2017，33（2）：198-203. |
| [6] | QIN Y， YU X， LENG G H，et al.Effect of diatomite content on diatomite matrix based composite phase change thermal storage material［J］.Materials Research Innovations，2014，18（sup2）：S2-453-S2-456. |
| [7] | 黄玥铭，吴子华，王嘉伟，等.有机复合相变材料光热转换和储热性能的研究进展［J］.材料导报，2022，36（S2）：440-448. |
| HUANG Yueming， WU Zihua， WANG Jiawei，et al.Research progress on photothermal conversion and thermal storage performance of organic composite phase change materials［J］.Materials Reports，2022，36（S2）：440-448. | |
| [8] | TAO Yiyi， MAO Zepeng， YANG Zhangbin，et al.Preparation and characterization of polymer matrix passive cooling materials with thermal insulation and solar reflection properties based on porous structure［J］.Energy and Buildings，2020，225：110361. |
| [9] | JIANG Feng， ZHANG Lingling， SHE Xiaohui，et al.Skeleton materials for shape-stabilization of high temperature salts based phase change materials：A critical review［J］.Renewable and Sustainable Energy Reviews，2020，119：109539. |
| [10] | ZHAO Y J， WANG R Z， WANG L W，et al.Development of highly conductive KNO3/NaNO3 composite for TES（thermal energy storage）［J］.Energy，2014，70：272-277. |
| [11] | 次恩达.Mg（NO3）2·6H2O-LiNO3复合相变储热材料的制备及性能研究［D］.华北理工大学，2023. |
| Enda Ci.Preparation and performance study of Mg（NO3）2-6H2O-LiNO3 composite phase change thermal storage material［D］.North China University of Science and Technology，2023. | |
| [12] | REN Yunxiu， XU Chao， YUAN Mengdi，et al.Ca（NO3）2-NaNO3/expanded graphite composite as a novel shape-stable phase chan- |
| ge material for mid-to high-temperature thermal energy storage［J］.Energy Conversion and Management，2018，163：50-58. | |
| [13] | LIU Junwan， WANG Qianhao， LING Ziye，et al.A novel process for preparing molten salt/expanded graphite composite phase change blocks with good uniformity and small volume expansion［J］.Solar Energy Materials and Solar Cells，2017，169：280- 286. |
| [14] | YU Qiang， ZHANG Cancan， LU Yuanwei，et al.Comprehensive performance of composite phase change materials based on eutectic chloride with SiO2 nanoparticles and expanded graphite for thermal energy storage system［J］.Renewable Energy，2021，172：1120-1132. |
| [15] | KABIR E， KUMAR P， KUMAR S，et al.Solar energy：Potential and future prospects［J］.Renewable and Sustainable Energy Reviews，2018，82：894-900. |
| [16] | GIELEN D， BOSHELL F， SAYGIN D，et al.The role of renewable energy in the global energy transformation［J］.Energy Strategy Reviews，2019，24：38-50. |
| [17] | 张月，王敏，李锦丽，等.纳米粒子掺杂太阳盐复合材料热物性研究［J］.无机盐工业，2022，54（5）：54-60. |
| ZHANG Yue， WANG Min， LI Jinli，et al.Study on thermophysical properties of solar salt composites doped with nanoparticles［J］.Inorganic Chemicals Industry，2022，54（5）：54-60. | |
| [18] | GONG Qing， SHI Hao， CHAI Yan，et al.Molten chloride salt technology for next-generation CSP plants：Compatibility of Fe-based alloys with purified molten MgCl2-KCl-NaCl salt at 700 ℃［J］.Applied Energy，2022，324：119708. |
| [19] | DING Wenjin， BAUER T.Progress in research and development of molten chloride salt technology for next generation concentrated solar power plants［J］.Engineering，2021，7（3）：334-347. |
| [20] | ZHANG Yuanbo， LIU Jicheng， SU Zijian，et al.Utilizing blast furnace slags（BFS） to prepare high-temperature composite phase change materials（C-PCMs）［J］.Construction and Building Materials，2018，177：184-191. |
| [21] | AHMAD ALJAERANI H， SAMYKANO M， SAIDUR R，et al.Nanoparticles as molten salts thermophysical properties enhancer for concentrated solar power：A critical review［J］.Journal of Energy Storage，2021，44：103280. |
| [22] | ROPER R， HARKEMA M， SABHARWALL P，et al.Molten salt for advanced energy applications：A review［J］.Annals of Nuclear Energy，2022，169：108924. |
| [23] | OROZCO M A， ACURIO K， VáSQUEZ-AZA F，et al.Thermal storage of nitrate salts as phase change materials（PCMs）［J］.Materials，2021，14（23）：7223. |
| [24] | MEMON S ALI， LO T Y， BARBHUIYA S A，et al.Development of form-stable composite phase change material by incorporation of dodecyl alcohol into ground granulated blast furnace slag［J］.Energy and Buildings，2013，62：360-367. |
| [25] | WANG Junlei， WANG Yan， HUANG Yun.Synthesis and characterization of form-stable carbonate/steel slag composite materials for thermal energy storage［J］.Journal of Energy Storage，2022，52：104708. |
| [26] | ROSTAMI J， KHANDEL O， SEDIGHARDEKANI R，et al.Enhanced workability，durability，and thermal properties of cement-based composites with aerogel and paraffin coated recycled aggregates［J］.Journal of Cleaner Production，2021，297：126518. |
| [27] | ZHANG Yuanbo， LIU Jicheng， SU Zijian，et al.Preparation of low-temperature composite phase change materials（C-PCMs） from modified blast furnace slag（MBFS）［J］.Construction and Building Materials，2020，238：117717. |
| [28] | NAZIR H， BATOOL M， BOLIVAR OSORIO F J，et al.Recent developments in phase change materials for energy storage applications：A review［J］.International Journal of Heat and Mass Transfer，2019，129：491-523. |
| [29] | LI Qi， LI Chuan， QIAO Geng，et al.Effects of MgO particle size and density on microstructure development of MgO based composite phase change materials［J］.Energy Procedia，2019，158：4517-4522. |
| [30] | WANG Tieying， ZHANG Tianying， XU Guizhi，et al.A new low-cost high-temperature shape-stable phase change material based on coal fly ash and K2CO3 ［J］.Solar Energy Materials and Solar Cells，2020，206：110328. |
| [31] | MOTTE F， FALCOZ Q， VERON E，et al.Compatibility tests between solar salt and thermal storage ceramics from inorganic industrial wastes［J］.Applied Energy，2015，155：14-22. |
| [32] | LIN Yaxue， ALVA G， FANG Guiyin.Review on thermal performances and applications of thermal energy storage systems with inorganic phase change materials［J］.Energy，2018，165：685- 708. |
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