Research on Test Method of Platinum Loading in Fuel Cell Membrane Electrode

As the energy conversion unit of proton exchange membrane fuel cell (PEMFC), membrane electrode assembly (MEA) converted chemical energy into electrical energy under the action of catalyst. Platinum-based catalyst was still an irreplaceable catalyst for commercial PEMFC, and the platinum (Pt) loading in membrane electrode had became an important indicator of PEMFC performance evaluation. By improving the existing national standard method for testing the platinum loading of PEMFC membrane electrode, a microwave digestion pretreatment method for testing the platinum loading of PEMFC membrane electrode was developed. Compared with the national standard method, the new method not only improved the accuracy of the test results, but also greatly improved the test efficiency. The amount of reagent was greatly reduced. The method was more green, safe and environmentally friendly.