氢氧化镍薄膜制备及析氧电催化活性评价的综合实验设计

A Comprehensive Experiment Including Preparation of Nickel Hydroxide Film and Evaluation on Electrocatalytic Activity in Oxygen Evolution Reaction

设计一个包括氢氧化镍薄膜制备、铁掺杂以及析氧电催化活性评价的系统性应用化学综合实验。通过开展本实验,学生能够(1)学习利用电化学沉积方法制备电催化剂薄膜的技术;(2)初步掌握利用循环伏安、塔菲尔曲线等电化学测试技术对析氧电催化剂的活性进行评价的方法;(3)认识到痕量的杂质元素(铁)将对物质性能(析氧电催化活性)产生显著影响的客观事实。本实验将引导学生关注绿色可再生能源的开发及应用,有利于学生化学应用能力的培养。

A comprehensive experiment including preparation of nickel hydroxide film and evaluation on electrocatalytic activity in oxygen evolution reaction was established in this paper.Through the experiment,students can(1)learn the technology of preparing electrocatalyst films by electrochemical deposition method;(2)preliminarily grasp the activity-evaluation method of electrocatalysts used in oxygen evolution reactions by electrochemical techniques such as cyclic voltammetry and Tafel curve;(3)recognize the objective fact that trace amounts of impurity elements(iron)may have a significant effect on the material properties(electrocatalytic activity).This experiment will guide students to pay attention to the development and application of green renewable energy,which is conducive to the cultivation of students’chemical application ability.