化学学报 ›› 2011, Vol. 69 ›› Issue (21): 2637-2640.DOI: 10.6023/A1103063B 上一篇    

研究简报

八面体纳米钼酸钡的制备及标准摩尔生成焓的测定

王路得1,王腾辉1,郭云霄1,黄在银*,1,2   

  1. (1广西民族大学化学与生态工程学院 南宁 530006)
    (2广西林产化学品开发与应用自治区重点实验室 南宁 530006)
  • 收稿日期:2011-03-06 修回日期:2011-06-15 出版日期:2011-11-14 发布日期:2011-07-12
  • 通讯作者: 黄在银 E-mail:huangzaiyin@163.com
  • 基金资助:

    国家自然科学基金

Preparation and Standard Molar Enthalpy of Formation for the Octahedron BaMoO4 Nanostructures

Wang Lude1 Wang Tenghui1 Guo Yunxiao1 Huang Zaiyin*,1,2   

  1. (1 College of Chemistry & Ecological Engineering, Guangxi University for Nationalities, Nanning 530006)
    (2 Key Laboratory of Development and Application of Forestry Chemicals in Guangxi, Guangxi Zhuang Autonomous Region, Nanning 530006)
  • Received:2011-03-06 Revised:2011-06-15 Online:2011-11-14 Published:2011-07-12

根据热力学势函数法建立纳米钼酸钡与块体钼酸钡标准摩尔生成焓之间的关系, 利用原位微量热技术获取纳米钼酸钡与盐酸反应的反应热, 以已知的块体钼酸钡的标准摩尔生成焓-1507.5 kJ•mol-1为参考标准, 求得由反相微乳液法制备的八面体纳米钼酸钡的标准摩尔生成焓为(-336.62±0.33) kJ•mol-1, 两种材料标准摩尔生成焓数值的差异证明纳米结构比块体结构能态更高, 更加不稳定.

关键词: 标准摩尔生成焓, 热力学势函数法, 反相微乳液法, 纳米钼酸钡, 微量热技术

The relationship of standard molar enthalpy of formation between nano and bulk BaMoO4 was obtained by designing a thermo chemical cycle according to thermodynamic potential function method, and the heat of reaction that nano BaMoO4 reacted with HCl could be gotten by microcalorimetry, based on the known standard molar enthalpy of formation, which was -1507.5 kJ•mol-1 of the bulk BaMoO4, standard molar enthalpy of formation for octahedron BaMoO4 nanostructures prepared by inverse microemulsion at 298.15 K was calculated as (-336.62±0.33) kJ•mol-1, the different value of two kinds of materials proved that the energy state of nano materials was higher and more unstable.

Key words: standard molar enthalpy of formation, thermodynamic potential function method, inverse microemulsion, nano BaMoO4, microcalorimetry

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