This work uses graphene aerogels' good electrical conductivity, excellent mechanical properties, high catalyst loading performance and ultra-light weight. Graphene aerogels replace two important components in traditional fuel cells — electrode plates And gas diffusion layer, which greatly reduces the weight of the fuel cell while increasing the mass power density of the fuel cell by three times. Graphene aerogels have special selective adsorptivity. Even if 12M methanol is stored in the aerogel, methanol will hardly pass through the proton exchange membrane. In addition, graphene aerogels also play a role in fuel storage, enabling the fuel cell to operate without the need to continuously transport methanol, thereby eliminating the need for an external methanol storage device and a complex fuel cycle system, and reducing manufacturing costs . This work has played an important role in promoting the further development of fuel cells.
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