自然科学研究

基于尺寸效应对纳米钼酸钡溶解动力学参数及表面热力学函数的研究

王异 (广西民族大学), 蓝芝文 (广西民族大学), 黄旭东 (广西民族大学), 覃佳勇 (广西民族大学), 陆胜达 (广西民族大学), 黄在银 (广西民族大学)

摘要


由于纳米颗粒表现出显著的表面效应，其溶解动力学特性与相应的块体材料存在显著差异。本研究在288.15至328.15 K的温度范围内测定了不同粒径纳米钼酸钡的电导率，结合溶解度法、溶解动力学和化学动力学过渡态理论，构建了相应的动力学模型。本工作成功获得了钼酸钡的溶解动力学参数，并通过实验结果的详尽讨论与验证，确认了该溶解过程遵循 Arrhenius 规律。此外，本研究还通过溶解动力学参数推导出了表面热力学函数，这些发现对于纳米材料的制备与应用提供了重要的科学指导。

关键词


纳米钼酸钡；溶解动力学参数；过渡态理论；动力学模型；表面热力学函数

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参考


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DOI: https://doi.org/10.33142/nsr.v1i2.14016

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