中文摘要：

采用微乳液-水热辅助法制备了形貌和尺寸均匀的纳米氧化锌分级结构,并对其进行了表征.利用微量热技术和电化学方法分别测定了纳米Zn O在298.15 K下的热力学函数（标准摩尔生成焓、标准摩尔生成Gibbs自由能及标准摩尔熵）.采用微量热方法测定纳米材料热力学函数主要基于纳米反应体系与对应块体反应体系的过渡态相同;采用电化学方法测定纳米材料热力学函数主要基于纳米材料与对应块体材料组成电池后的电极电势不同.结果表明,采用微量热法及电化学法获取的产物的热力学函数在误差允许范围内近似相等.由此证明了微量热技术及电化学方法获取纳米材料热力学函数的科学性及有效性,同时也进一步说明纳米Zn O反应体系与块体Zn O反应体系所经历的过渡态相同。

英文摘要：

Nano zinc oxide（ZnO） hierarchical structures with uniform size and morphology were prepared by microemulsion-mediated hydrothermal route. The thermodynamic functions at 298.15 K, such as standard mo- lar enthalpy, standard molar Gibbs free energy, and standard molar entropy of the synthesized nano ZnO were obtained by employing microcalorimetry and electrochemical method, individually. Microcalorimety for acquiring thermodynamic functions of nanomaterial was mainly based on that nano reaction system and its corre- sponding bulk reaction system possess the same transition state, whereas electrochemical method for acquiring thermodynamic functions of nanomaterial was mainly based on the difference of electrode potential between nanomaterial and its corresponding bulk material. The results reveal that the thermodynamic functions obtained by microcalorimetry and electrochemical method are approximately equal in the range of allowable error. The results also proved that both of the two developed methods to obtain thermodynamic functions of nanomaterials are effective and scientific. Moreover, it further support that the nano ZnO reaction system and its correspon- ding bulk ZnO reaction system experience the same transition state.