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3smooth was modified by mold G1 and MEA 4rough was modified by mold T3. The results for these two tests can also be found in Fig.7. The results from the second test show a slight improvement for the MEA modified by mold T3. These results are preliminary findings from this study. It is still unknown whether these results are statistically confirmed. Membrane Electrode Assembly Peak Current Density (mA/cm2) Peak Power Density (mW/cm2) Max. Relative Area Peak Current Density Deltas (mA/cm2) Peak Power Deltas (mA/cm2) Max Scale for Discimination (μM) MEA 1 917 250.4 MEA 2 976 242.8 MEA3 850 232 MEA 4 862 238.4 Table 4 - Fuel cell test result summary table. Conclusions 1.14 MEA2-MEA1= MEA2-MEA1= 10 1.33 59 -7.6 10 1.14 MEA4-MEA3= MEA4-MEA3= 10 1.33 12 6.4 10 1. Only a partial transfer of the mold surface texture to the Nafion membrane during the modification process. 2. When making measurements for comparison using the Olympus LEXT scanning laser confocal microscope, measurements must be taken using the same objective lens. 3. The modified Nafion membranes can be discriminated when using scales at or below one micrometer. 4. The fuel cell tests look good but are inconclusive due to not having been tested for repeatability. Acknowledgements The author gratefully acknowledges Olympus for the generous use of the LEXT OLS3100 confocal microscope. Solarius Development for the UBM. Brendan Powers for his generous help. Surfract (owned by Prof. C.A. Brown) for use of Sfrax. Saurabh Vilekar for his 27PDF Image | surface roughness of the Nafion membrane in a PEM fuel cell
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