Abstract Electrochemistry is a key component of inorganic chemistry theory and experimental courses. However, it can be difficult for students to grasp due to its abstract nature. To deepen students’ understanding and application of electrochemical theory and to make the original “primary battery and electrolytic cell experiment” more interesting and operationally feasible, improvements have been made to increase the stability and current of the original cell by using gel electrolytes made from the gelling properties of cornstarch. Additionally, the principle of “hydrogen release producing alkali” in electrolyzing saline water is utilized, resulting in the color change of potassium permanganate, which enhances the understanding of the principles of electrolytic cells through visual recognition. Finally, a concentration cell is prepared by dropwise addition of ammonia, and the voltage change is explained using the Nernst Equation. This innovative experiment design enriches the practical content of the course, enhances students’ problem-solving ability, and stimulates their creativity.
WANG Xin, ZHAO Shu-Yu, LI Jia-Qi, WANG Shao-Dan, LU Zhuo-Xiao, WANG Tao, CHEN Shu-Min. Improvement of Galvanic Cell and Electrolytic Cell Experiments[J]. Chinese Journal of Chemical Education, 2024, 45(18): 56-60.
