Journal of Hydrogen and New Energy (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Characterization of Ni-Pt/C Nanocatalysts Prepared by Spontaneous Reduction Reaction of Metallic Precursors in Dry Process

건식 공정에서 금속 전구체의 자발적 환원 반응에 의해 제조된 Ni-Pt/탄소 나노 촉매의 특성

  • JAEYOUNG LEE (Hydrogen Fuel Cell Regional Innovation Center, Woosuk University) ;
  • HONGKI LEE (Hydrogen Fuel Cell Regional Innovation Center, Woosuk University)
  • 이재영 (우석대학교 수소연료전지 부품 및 응용기술 지역혁신센터) ;
  • 이홍기 (우석대학교 수소연료전지 부품 및 응용기술 지역혁신센터)
  • Received : 2024.09.09
  • Accepted : 2024.10.25
  • Published : 2024.10.30
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Abstract

Fe-Pt/C nanocatalysts were prepared via spontaneous reduction reaction of nickel(II) acetylacetonate and platinum(II) acetylacetonate on the surface of carbon black in dry process, and their morphology and elemental analysis were characterized by scanning electron microscopy, transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy. The loading weight of the nanocatalysts was measured by thermogravimetric analysis and the surface area was measured by BET analysis. TEM observation showed that Ni and Pt nanoparticles was well dispersed on the carbon black and their average particle size was 4.21 nm. The loading weight of Ni-Pt nanocatalysts on the carbon black was 5.96-6.83 wt%, and the value increased with increasing nickel(II) acetylacetonate content. As the Ni-Pt loading weight increased, the specific surface area decreased significantly by more than 70%, because Ni-Pt nanoparticles block the micropores of carbon black. I-V characteristics showed that water electrolysis performance increased with increasing Pt nanocatalyst content.

Keywords

Acknowledgement

본 연구는 2021년도 산업통상자원부의 신재생에너지 핵심기술 개발 사업의 연구비 지원을 받아 수행된 연구임(No. 20213030040520).

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