Research Article
A Platinum Monolayer Core-Shell Catalyst with a Ternary Alloy Nanoparticle Core and Enhanced Stability for the Oxygen Reduction Reaction
Table 2
Pt and Ni content determined by ICP-AES.
| | Sample | Actual Ni content (wt%) | Theoretical Pt content (wt%) | Actual Pt content (wt%) |
| | Pd1Ir1Ni2/C | 5.06 | — | — | | Pd1Ir1Ni2/C after 20 cycles | 0.05 | — | — | | Pd1Ir1Ni2@Pt/C | 0.05 | 4.16 | 4.02 | | Pd2Ir2Ni1/C | 1.52 | — | — | | Pd2Ir2Ni1/C after 20 cycles | 0.33 | — | — | | Pd2Ir2Ni1@Pt/C | 0.31 | 5.98 | 4.57 | | Pd1Ir1@Pt/C | — | 4.72 | 5.47 |
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