大学化学 >> 2020, Vol. 35 >> Issue (1): 80-86.doi: 10.3866/PKU.DXHX201905078

所属专题: 化学拔尖学生培养试验计划

化学实验 上一篇    下一篇

使用程序升温还原方法认识无机化合物的氧化还原行为——面向拔尖计划学生的综合实验

王伟伟,刘浩鑫,徐凯,贾春江*()   

  • 收稿日期:2019-05-28 录用日期:2019-07-24 发布日期:2019-08-15
  • 通讯作者: 贾春江 E-mail:jiacj@sdu.edu.cn
  • 基金资助:
    山东大学教育教学改革研究重点培育项目(2019P02);山东大学双一流学科建设项目

Investigation of the Redox Properties of Some Inorganic Compounds by Temperature-Programmed Reduction Technique: A Comprehensive Chemistry Experiment for the Top Program Students

Weiwei Wang,Haoxin Liu,Kai Xu,Chunjiang Jia*()   

  • Received:2019-05-28 Accepted:2019-07-24 Published:2019-08-15
  • Contact: Chunjiang Jia E-mail:jiacj@sdu.edu.cn
  • Supported by:
    山东大学教育教学改革研究重点培育项目(2019P02);山东大学双一流学科建设项目

摘要:

元素化学是无机化学教学的重要组成部分。通过实验的方法研究元素及其无机化合物的性质和反应规律,可以使传统的描述性教学成为易于形象理解和深入掌握的立体化教学。本实验包含简单无机化合物的合成制备以及运用程序升温还原技术(TPR)考查所制备的材料的氧化还原性质两部分内容。程序升温还原方法可以非常直观地反映出样品的还原过程,并可以给出样品还原能力强弱(峰的位置,用于定性考查)、还原物种种类和数目(峰的数目、强弱,用于定量考查),以及各组分之间的相互作用的信息。程序升温还原技术操作简便、易实行,可在高校化学实验教学中推广使用。

关键词: 无机化合物, 氧化还原行为, 程序升温还原

Abstract:

Elemental chemistry is an important part of inorganic chemistry. The study on the properties and reaction rules of inorganic compounds through experimental methods can make the traditional descriptive teaching a three-dimensional teaching that is easy to be received by students. This experiment includes the synthesis of simple inorganic compounds and the utilization of temperature-programmed reduction technique (TPR) to investigate the redox properties of those inorganic compounds. The TPR technique can directly reflect the reduction process of the samples and provide the qualitative information of the reduction ability from the peak location, quantitative information of the reduced species from the peak intensity, and the interaction between the components. The TPR technique can be easily applied in college teaching for chemical laboratory courses.

Key words: Inorganic compounds, Redox properties, Temperature-programmed reduction

MSC2000: 

  • G64