TY - JOUR
AU - Yi, Baolian
AB - Nanofiber electrodes fabricated by using the electrospinning technique in the cathode of proton exchange membrane fuel cells gave a peak power density of 0.692 W cm−2 with an ultralow Pt loading of 0.087 mg cm−2. As the cathode, the electrospun (E_spun) electrodes exposed a high Pt surface to oxygen, with a highly uniform distribution of Pt catalyst and Nafion ionomer, which improved the utilization of Pt. The ionic resistance of the E_spun electrode was decreased owing to the nanofiber structure. The high porosity of the E_spun electrode enhanced the Knudsen diffusion in small pores, which mitigated the oxygen‐transfer resistance. The addition of 5 wt % polytetrafluoroethylene (PTFE) to the E_spun electrode optimized water management, especially at high current densities. The accelerated stability test showed that the long‐term durability of the E_spun electrode is much better than the conventional decal electrode due to the interaction of the carbon support and hydrophilic poly(acrylic acid).
TI - Investigation of a High‐Performance Nanofiber Cathode with Ultralow Platinum Loading for Proton Exchange Membrane Fuel Cells
JF - Energy Technology
DO - 10.1002/ente.201600734
DA - 2017-08-01
UR - https://www.deepdyve.com/lp/wiley/investigation-of-a-high-performance-nanofiber-cathode-with-ultralow-TFdv8YoGoM
SP - 1457
EP - 1463
VL - 5
IS - 8
DP - DeepDyve
ER -