含能材料2023，Vol.31Issue(11)：1116-1123,8.DOI:10.11943/CJEM2022284
分子钙钛矿含能材料(C6N2H14)(NH4)(ClO4)3(DAP-4)在288～323 K下的各种溶剂中的溶解度
Solubility and Dissolution Thermodynamics of Molecular Perovskite Energetic Material
摘要
Abstract
Solubility is an important parameter for the crystallization of molecular perovskite energetic materials(H6N2H14)[NH4(ClO4)3](DAP-4).In this work,the dissolution behaviors of DAP-4 at different temperatures(288-323 K)and in different solvents(ethanol,ethyl acetate,formic acid,deionized water,acetone,cyclohexane,methanol,acetonitrile,n-propanol)were studied by the gravimetric method.The dissolution models were established by the Apelblat equation and the λh equation,respectively.Meanwhile,the dissolution thermodynamic parameters(ΔHd,ΔSd,ΔGd)were obtained by Van't Hoff equation based on the thermodynamic principle of solid-liquid equilibrium.Results show that the solubility of DAP-4 is the largest in water and the smallest in ethyl acetate,which are increased with the increasing of temperature in different solvents.The fitting result of dissolution model from the Apleblat equation is better than that of the λh equation.Positive values of ΔHd,ΔSd,and ΔGd indicate that the dissolving process of DAP-4 are non-spontaneous endothermic.关键词
溶解度/重量法/分子钙钛矿含能材料/溶解热力学参数Key words
solubility/gravimetric method/molecular perovskite energetic material/dissolution thermodynamics parameters分类
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袁明羽,刘强强,尚宇,周维,邹俐,高海翔,刘应乐..分子钙钛矿含能材料(C6N2H14)(NH4)(ClO4)3(DAP-4)在288～323 K下的各种溶剂中的溶解度[J].含能材料,2023,31(11):1116-1123,8.基金项目
Supported by the National Natural Science Foun-dation of China(No.22005206,22075318),Science and Technolo-gy Department of Sichuan Province(No.2022NSFSC1209,2022NS-FSC0219),and Undergraduate Training Programs for Innovation and Entrepreneurship(No.cx2022046) （No.22005206,22075318）
