Straightforward synthesis of chemically ordered Pt3Co/C nanoparticles by a solid phase method for oxygen-reduction reaction

We developed a solid phase method to fabricate structurally ordered Pt 3 Co/C nanoparticles (NPs) with controllable component proportion as a high efficiency catalyst toward oxygen-reduction reaction. As a result, Pt 3 Co/C NPs exhibit high crystallinity with small average size and narrow size distr...

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Bibliographic Details
Published in:Ionics 2021-06, Vol.27 (6), p.2553-2560
Main Authors: Cheng, Zhenzhi, Liao, Sen, Zhou, Weiping, Luo, Guangsheng, Huang, Haifu
Format: Article
Language:English
Subjects:
Carbon
Carbon black
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Electrochemistry
Energy Storage
High temperature
Intermetallic compounds
Nanoparticles
Optical and Electronic Materials
Original Paper
Oxygen reduction reactions
Renewable and Green Energy
Size distribution
Solid phases
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Summary:We developed a solid phase method to fabricate structurally ordered Pt 3 Co/C nanoparticles (NPs) with controllable component proportion as a high efficiency catalyst toward oxygen-reduction reaction. As a result, Pt 3 Co/C NPs exhibit high crystallinity with small average size and narrow size distribution. Moreover, the ordered Pt 3 Co/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.
ISSN:0947-7047
1862-0760
DOI:10.1007/s11581-021-04017-w