Dendritic metallic nanostructures for fuel cell have good performance.

Fuel cells are new energy conversion technology used in portable electronic devices, stationary power generation and automotive applications, wherein the polymer electrolyte membrane (PEM) fuel cells than conventional fuel battery have the following advantages: flexibility in operating conditions, can quickly change the output power, durable, simple system, so it is the first choice of the car for the power source. The results showed that under the conditions of the PEM fuel cell, the tree platinum sheet than the conventional platinum catalyst has much higher catalytic activity and durability. Under 75 hours at 0.5v, during the test period of constant electric potential use, the performance of platinum black decreased by 47%, while the performance of platinum sheet fell only 33%. More importantly, in the durability test, at 75 hours of operation test, it only declined 19% (1.2A/cm2 to 0.97A/cm2), meanwhile platinum black MEA dropped 43% (1.25A / cm2 to 0.71A/cm2). Dendrimers (CYD-ND193/CYD-ND311/CYD-ND537) have broad application prospects at platinum catalyst for fuel cell due to the durability. Weihai CY Dendrimer Technology Co. Ltd.-Professional Manufacturer for low cost dendritic polymers.