XIAO Rui1, WAN Li1, XU Bo1, SHI Yi-Min1, YUAN Min2
1. College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China; 2. Chengdu No.7 Yucai School Xuedao Branch, Chengdu 610000, China
Abstract “Making Easy Fuel Cells” was listed as a compulsory experiment in the General High School Chemistry Curriculum Standards (2017 edition). Because the experimental phenomena were not obvious, this paper used the pencil lead as electrode and used the sponge immersed in sodium sulfate solution to replace the traditional electrolyte. The improved hydrogen-oxygen fuel cell had high current and stable voltage, and long diode luminescence time.
