Nanostructure Control of PtNiN/C Catalysts for Oxygen Reduction Reaction by Regulating Displacement Rate of Precursor 


Vol. 30,  No. 1, pp. 55-61, Mar.  2024
10.7464/ksct.2024.30.1.55


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  Abstract

Efforts are actively underway to address the issues related to the high cost of Pt-based catalysts for oxygen reduction reactions by designing high-performance Pt-based alloys through the control of their nanostructures. In this study, a method was proposed to control the nanostructure of Pt-based alloys, either hollow or core-shell, by adjusting the pH of the solution during the galvanic replacement reaction between the carbon-supported nickel-nickel nitride composite and the Pt ions. The physical characteristics, including the state, quantity, and morphology of the metal particles under different preparation conditions, were evaluated through X-ray diffraction, transmission electron microscopy, and inductively coupled plasma. When the prepared catalysts were employed for the oxygen reduction reaction, they exhibited an improvement in area specific-activity compared to a commercial Pt/C, with a 1.7 and 1.9-fold enhancement for the hollow and core-shell structured catalysts, respectively.

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  Cite this article

[IEEE Style]

D. Kim, S. Kim, S. J. Yoo, P. Kim, "Nanostructure Control of PtNiN/C Catalysts for Oxygen Reduction Reaction by Regulating Displacement Rate of Precursor," Clean Technology, vol. 30, no. 1, pp. 55-61, 2024. DOI: 10.7464/ksct.2024.30.1.55.

[ACM Style]

Dong-gun Kim, Seongseop Kim, Sung Jong Yoo, and Pil Kim. 2024. Nanostructure Control of PtNiN/C Catalysts for Oxygen Reduction Reaction by Regulating Displacement Rate of Precursor. Clean Technology, 30, 1, (2024), 55-61. DOI: 10.7464/ksct.2024.30.1.55.

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pISSN : 1598 - 9712
eISSN : 2288 - 0690

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