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한국수소 및 신에너지학회 논문집 = Transactions of the Korean Hydrogen and New Energy Society v.29 no.5, 2018년, pp.450 - 457  
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

연료전지 전극촉매용 팔라듐 나노입자 형상 제어 및 산소환원반응 성능 평가
Preparation of Shape-Controlled Palladium Nanoparticles for Electrocatalysts and Their Performance Evaluation for Oxygen Reduction Reaction

김경희   (한국에너지기술연구원 연료전지연구실  ); 이정돈   (한국에너지기술연구원 연료전지연구실  ); 이효준   (한국에너지기술연구원 연료전지연구실  ); 박석희   (한국에너지기술연구원 연료전지연구실  ); 임성대   (한국에너지기술연구원 연료전지연구실  ); 정남기   (충남대학교 에너지과학기술대학원  ); 박구곤   (한국에너지기술연구원 연료전지연구실  );
  • 초록

    To design the practical core-shell electrocatalysts, combination of core and shell materials is important to meet catalytic activity and durability target. In general, Pd is considered as a good core material due to its best activity caused by strain/ligand effect. Preparing Pd nanoparticles can be a starting point in fabricating core-shell type electrocatalysts, much simplified Pd preparing process is suggested by using carbon monoxide (CO) as a reducing agent and/or capping agent. The solvent composition and reaction temperature can control to nanosheet, tetrahedron, and sphere without using additional stabilizer. Among them, Pd nanosheet which has mainly (111) plane showed about 3 times higher electrocatalytic activity for oxygen reduction reaction (ORR) to the spherical Pd nanoparticles. The enhanced ORR activity of Pd nanosheets can be attributed to the exposure of Pd (111) surface and the high electrochemical surface area. Therefore, we demonstrated that the shape of Pd nanomaterials is easily controlled via a facile reduction method using CO, and (111) plane-oriented Pd nanosheets can be a promising ORR catalysts and core material for polymer electrolyte fuel cells (PEFCs).


  • 주제어

    고분자전해질연료전지 .   코어물질 .   형상제어 .   일산화탄소 .   팔라듐 촉매 .   산소환원반응.  

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