PEM fuel cell (proton exchange membrane fuel cell) Product overview This PEM fuel cell is a demonstrationgrade electrochemical cell made of two electrodes, a cathode and an anode, joined by a polymer membrane. Key components, including the membrane, electrodes and catalysts, use imported materials for consistent and reliable performance. The unit is designed for classroom and laboratory demonstrations of hydrogen fuel cell principles. Key benefits Clear demonstration of fuel cell operation: shows how hydrogen is oxidized at the anode, how electrons travel through an external circuit to produce current, and how protons move through the membrane to combine with oxygen at the cathode to form water. Reliable and stable performance: constructed from quality components for repeatable experimental results suitable for teaching and demonstration work. Easy integration into lab experiments: compatible with standard hydrogen sources, common laboratory circuitry and measurement instruments, making it simple to include in existing lesson plans and lab setups. Educationally effective: lets students observe current generation, measure voltage and explore variables such as load, flow rate and gas supply. Important attributes Function: converts the chemical energy of hydrogen and oxygen into electrical energy; main observable byproduct is water. Construction materials: polymer proton exchange membrane with electrodes and catalysts made from importedgrade materials to ensure consistent performance. Performance: stable output during demonstrations and experiments, suited for repeated classroom use. Form factor and compatibility: designed for bench demonstration and laboratory use; compatible with typical lab gas fittings and external circuits used in educational settings. Typical applications and use scenarios school chemistry class demonstration: illustrate basic fuel cell chemistry and show the flow of electrons and protons while measuring voltage under different loads. University laboratory experiment: use in lab classes to investigate fuel cell behavior, polarization curves and the effects of catalyst or flow rate changes. STEM outreach and workshops: portable demonstration unit for presentations that explain renewable energy concepts and electrochemical conversion. What you can demonstrate Electron flow from anode to cathode through an external circuit and resulting electrical current. Proton transport through the polymer membrane and recombination with oxygen at the cathode to form water. Effects of electrical load and gas supply variations on cell voltage and current. Summary This PEM fuel cell provides a practical, classroomready platform to demonstrate the principles of proton exchange membrane fuel cells. With a polymer membrane and imported electrodes and catalysts, it delivers stable, repeatable performance for teaching, laboratory experiments and outreach activities.