Ceramist (세라미스트)

The Korean Ceramic Society (한국세라믹학회)
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Catalyst Enhanced by Controlling Structure and Shape of Nanocrystals, Support Materials, and Hybrid System in DMFCs

나노입자의 구조와 모양, 담지체 및 하이브리드 시스템 제어를 통한 직접메탄올 연료전지의 촉매 개발

  • Lee, Young Wook (Korea Institute of Ceramic Engineering and Technology) ;
  • Shin, Tae Ho (Korea Institute of Ceramic Engineering and Technology)
  • Received : 2019.06.16
  • Accepted : 2019.06.24
  • Published : 2019.06.30
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Abstract

Direct methanol fuel cells (DMFCs) have found a wide variety of commercial applications such as portable computer and mobile phone. In a fuel cell, the catalysts have an important role and durability and efficiency are determined by the ability of the catalyst. The activity of the catalyst is determined by the structure and shape control of the nanoparticles and the dispersion of the nanoparticles and application system. The surface energy of nanoparticles determines the activity by shape control and the nanostructure is determined by the ratio of bi- and tri-metals in the alloy and core-shell. The dispersion of nanoparticles depends on the type of support such as carbon, graphen and metal oxide. In addition, a hybrid system using both optical and electrochemical device has been developed recently.

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References

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