Abstract
We developed a solid phase method to fabricate structurally ordered Pt3Co/C nanoparticles (NPs) with controllable component proportion as a high efficiency catalyst toward oxygen-reduction reaction. As a result, Pt3Co/C NPs exhibit high crystallinity with small average size and narrow size distribution. Moreover, the ordered Pt3Co/C NPs own enhanced ORR catalytic performance in acid. During the preparation process, the NaCl-matrix acts synergistically with carbon black as nanoreactors for Pt alloying with Co, avoiding serious sintering resulted by annealing at high temperature. Furthermore, other Pt-based NPs supported on carbon can also be prepared by this methodology.
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This work was supported by the National Natural Science Foundation of China (Grant No. 11604147) and the Foundation of National Laboratory of Solid State Microstructures, Nan**g University (M32048).
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Cheng, Z., Liao, S., Zhou, W. et al. Straightforward synthesis of chemically ordered Pt3Co/C nanoparticles by a solid phase method for oxygen-reduction reaction. Ionics 27, 2553–2560 (2021). https://doi.org/10.1007/s11581-021-04017-w
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DOI: https://doi.org/10.1007/s11581-021-04017-w