Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Nano particle size control of Pt/C catalysts manufactured by the polyol process for fuel cell application

폴리올법으로 제조된 Pt/C 촉매의 연료전지 적용을 위한 나노 입자 크기제어

  • Joon Heo (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education (KOREATECH)) ;
  • Hyukjun Youn (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education (KOREATECH)) ;
  • Ji-Hun Choi (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education (KOREATECH)) ;
  • Chae Lin Moon (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education (KOREATECH)) ;
  • Soon-Mok Choi (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education (KOREATECH))
  • 허준 (한국기술교육대학교 에너지신소재화학공학부) ;
  • 윤혁준 (한국기술교육대학교 에너지신소재화학공학부) ;
  • 최지훈 (한국기술교육대학교 에너지신소재화학공학부) ;
  • 문채린 (한국기술교육대학교 에너지신소재화학공학부) ;
  • 최순목 (한국기술교육대학교 에너지신소재화학공학부)
  • Received : 2023.11.30
  • Accepted : 2023.12.19
  • Published : 2023.12.31
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Abstract

This research aims to enhance the efficiency of Pt/C catalysts due to the limited availability and high cost of platinum in contemporary fuel cell catalysts. Nano-sized platinum particles were distributed onto a carbon-based support via the polyol process, utilizing the metal precursor H2PtCl6·6H2O. Key parameters such as pH, temperature, and RPM were carefully regulated. The findings revealed variations in the particle size, distribution, and dispersion of nano-sized Pt particles, influenced by temperature and pH. Following sodium hydroxide treatment, heat treatment procedures were systematically executed at diverse temperatures, specifically 120, 140, and 160 ℃. Notably, the thermal treatment at 140 ℃ facilitated the production of Pt/C catalysts characterized by the smallest platinum particle size, measuring at 1.49 nm. Comparative evaluations between the commercially available Pt/C catalysts and those synthesized in this study were meticulously conducted through cyclic voltammetry, X-ray diffraction (XRD), and field-emission scanning electron microscopy-energy dispersive X-ray spectroscopy (FE-SEM EDS) methodologies. The catalyst synthesized at 160 ℃ demonstrated superior electrochemical performance; however, it is imperative to underscore the necessity for further optimization studies to refine its efficacy.

Keywords

Acknowledgement

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No 2022R1A2C1092054). This research was supported by the Pioneer Research Center Program through the National Research Foundation of Korea, funded by the Ministry of Science, ICT & Future Planning (NRF2022M3C1A309198811). 본 논문은 2023년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학 협력기반 지역혁신 사업의 결과입니다 (2021RIS-004). 또한 한국기술교육대학교 산학협력단 공동기기분석실의 지원으로 연구되었습니다 (XRD, SEM).

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