Table 1.
Comparison of loading, electrocatalytic surface areas (ECSA), current@ 0.9 V, mass activity (MA) and specific activity (SA) of Pt catalysts.
| Catalyst | Loading (mg) |
ECSA (mpt2 g−1) |
Current@ 0.9V (mA) |
MA@ 0.9V (A g−1) |
SA@ 0.9V (A mpt−2 10−2) |
|---|---|---|---|---|---|
| Pt-black | 0.15 | 33.1 | 0.41 ± 0.04 | 2.7 ± 0.3 | 8.3 ± 0.8 |
| PtNSs | 0.15 | 20.6 | 0.42 ± 0.04 | 2.8 ± 0.3 | 13.6 ± 1.3 |
| PtNFs | 0.15 | 32.6 | 0.49 ± 0.03 | 3.3 ± 0.2 | 10.0 ± 0.6 |
| PtNWs | 0.15 | 46.7 | 0.51 ± 0.04 | 3.4 ± 0.3 | 7.3 ± 0.6 |
| PtNTs | 0.15 | 36.7 | 0.57 ± 0.04 | 3.8 ± 0.3 | 10.4 ± 0.8 |