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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Veröffentlicht in:	Ionics 2021-06, Vol.27 (6), p.2553-2560
Hauptverfasser:	Cheng, Zhenzhi, Liao, Sen, Zhou, Weiping, Luo, Guangsheng, Huang, Haifu
Format:	Artikel
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	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