A Free‐Standing Pt‐Nanowire Membrane as a Highly Stable Electrocatalyst for the Oxygen Reduction Reaction

Proton exchange membrane fuel cells (PEMFCs) have attracted a great deal of attention because of their high energy conversion effi ciency, low operation temperature, and low pollution emission. [ 1 ] However, there are still some challenges, such as sluggish kinetics and poor electrocatalyst durability of the oxygen reduction reaction (ORR) at the cathode, that limit the effi ciency and commercial viability of PEMFCs. [ 2,3 ] Therefore, it is necessary to develop a highly active and durable catalyst to improve the ORR performance of PEMFCs. [ 4,5 ]

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