纳米ZnO/三元氯化物熔盐热物性及腐蚀特性实验研究

季畅; 姜文超; 杨薛明

doi:10.19912/j.0254-0096.tynxb.2022-1171

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太阳能学报 ›› 2023, Vol. 44 ›› Issue (11) : 426-433. DOI: 10.19912/j.0254-0096.tynxb.2022-1171

纳米ZnO/三元氯化物熔盐热物性及腐蚀特性实验研究

季畅, 姜文超, 杨薛明

作者信息 +

EXPERIMENTAL STUDY ON THERMAL PROPERTIES AND CORROSION PROPERTIES OF NANO-ZNO/TERNARY CHLORIDE MOLTEN SALT

Ji Chang, Jiang Wenchao, Yang Xueming

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文章历史 +

摘要

以KCl-CaCl₂-MgCl₂三元氯化物熔盐（m（KCl）∶m（CaCl₂）∶m（MgCl₂）=25∶27∶48）为基盐,添加不同粒径及质量分数的纳米ZnO颗粒制备纳米ZnO/三元氯化物熔盐,对其热物性和腐蚀特性进行测试。差示扫描热仪（DSC）测试结果表明,1.0%、60 nm ZnO/三元氯化物熔盐的比热容相对于基盐提升效果最大,固态比热容提升18.87%,液态比热容提升18.98%;纳米ZnO/三元氯化物熔盐的熔点相对于基盐有所降低,熔化潜热有所提升。通过傅里叶红外光谱仪（FT-IR）、X射线衍射仪（XRD）和扫描电镜（SEM）对纳米ZnO/三元氯化物熔盐的晶体结构和微观形貌进行测试表征。测试基盐和纳米ZnO/三元氯化物熔盐对3种不锈钢的腐蚀特性。

Abstract

In the paper, KCl-CaCl₂-MgCl₂ ternary chloride molten salt （m（KCl）∶m（CaCl₂）∶m（MgCl₂）=25∶27∶48）） is used as the base salt, nano-ZnO particles with different particle sizes and mass fractions were added to prepare nano-ZnO/ternary chloride molten salt, and its thermal properties and corrosion characteristics were tested. The DSC test results show that addition of 1.0% 60 nm-ZnO has the greatest enhancement on the specific heat capacity of ternary chloride molten salt; The solid specific heat capacity is increased by 18.87%, and the liquid specific heat capacity is increased by 18.98% compared with the base salt; The melting point of nano-ZnO/ternary chloride molten salt is lower than that of base salt, and the latent heat of melting is increased; The crystal structure and micromorphology of nano-ZnO/ternary chloride molten salt were characterized by FT-IR, XRD and SEM. The corrosion characteristics of base salt and nano-ZnO/ternary chloride molten salt on three kinds of stainless steel were tested.

导出引用

季畅, 姜文超, 杨薛明. 纳米ZnO/三元氯化物熔盐热物性及腐蚀特性实验研究[J]. 太阳能学报. 2023, 44(11): 426-433 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1171

Ji Chang, Jiang Wenchao, Yang Xueming. EXPERIMENTAL STUDY ON THERMAL PROPERTIES AND CORROSION PROPERTIES OF NANO-ZNO/TERNARY CHLORIDE MOLTEN SALT[J]. Acta Energiae Solaris Sinica. 2023, 44(11): 426-433 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1171

中图分类号： TK512+.4

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