2020年 02期

Thermodynamic Properties of CdS, PbS, and Ag_2S Nano-particles Based on Principle of Dissolution Method


摘要(Abstract):

可控合成纳米镉、铅、银硫化物半导体材料,并对其形貌、结构和组成进行表征和测定;基于粒状和纳米镉、铅、银硫化物的本质差异,结合溶解热力学原理,分别获取其溶解平衡常数、溶解热力学函数、偏摩尔和摩尔表面热力学函数及生成热力学函数,并探究热力学函数与温度变化关系。结果表明:随着粒径减小,纳米镉、铅、银硫化物的标准溶解吉布斯自由能比对应粒状材料的小;纳米和粒状镉、铅、银硫化物的溶解吉布斯自由能,均随着温度的升高而增大;纳米镉、铅、银硫化物的偏摩尔、摩尔表面吉布斯自由能均随着温度升高而减小。

关键词(KeyWords): 硫化物半导体;溶解度法;热力学函数;温度效应

基金项目(Foundation): 国家自然科学基金项目(21573048,21873022);; 广西高校中青年教师基础能力提升项目(2017KY0167);; 广西民族大学科学研究项目(2016MDYB024);广西民族大学实验技术创新与实验室管理研究项目(2016MDSY008);广西民族大学校级高等教育教学改革工程项目(2016XJGY30)

作者(Author): 马祥英,黄在银,梁翠益,陆柳玉,陈其锋

DOI: 10.13349/j.cnki.jdxbn.2020.02.027

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