University Chemistry ›› 2022, Vol. 37 ›› Issue (7): 2110077.doi: 10.3866/PKU.DXHX202110077

• Chemistry Laboratory • Previous Articles     Next Articles

Preparation and Application of Wearable Smart-Sensors for Vapor/ Liquid Amphibious Methanol Monitoring

Nan Zhu1, Hongting Ma1, Huannuo Tao1, Xue Wang2, Yan Su2,*()   

  1. 1 Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, Liaoning Province, China
    2 School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning Province, China
  • Received:2021-10-25 Accepted:2021-11-09 Published:2021-12-17
  • Contact: Yan Su E-mail:susu@dlut.edu.cn

Abstract:

Methanol, a basic chemical raw material, is a common solvent in production and one of the common fuels of alcohol fuel cells. However, it is volatile and can cause toxicity to the human nervous system. Therefore, real-time monitoring of the concentration of methanol vapor in the environment is of great significance. In this paper, a comprehensive experiment "a wearable intelligent high selectivity gas-liquid bifunctional methanol electrochemical sensor" was designed on the basis of scientific research achievements. The experiment includes inorganic material synthesis, screen printing preparation, instrumental analysis and characterization, electrochemical sensing and detection, covering the main related knowledge points of several chemistry courses, thus is very comprehensive and cutting-edge. Through this experiment, students can not only consolidate the basic knowledge of chemistry, master the synthesis and characterization skills of graphene materials, but also understand the working principle of electrochemical sensors, which greatly stimulate students' interests in scientific research.

Key words: Wearable sensors, Methanol, Electrochemistry, Vapor/liquid

MSC2000: 

  • G64