| 초록 |
In this work, we analyzed the degree of aggregation in nanochannels of nanocomposites and how this had influence on PEMFC performance at high temperatures. The nanocomposites did not show any aggregation upto 20wt% loading of POSS-PA in HR-TEM. The current density of Nafion®/POSS-PA nanocomposites also reached maximum at 20 wt% loading and it showed 465 mA/cm2 at 0.6 V. This value is 8 times higher than that of Nafion® (60 mA/cm2). Improved cell performance of the nanocomposites attribute to good dispersion properties of POSS-PA in ionic channel at even very high ratio of POSS-PA in nanocomposites. |
