전기화학회지 (Journal of the Korean Electrochemical Society)

  • 제15권2호
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  • Pages.90-94
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  • 2012
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  • 1229-1935(pISSN)
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  • 2288-9000(eISSN)
한국전기화학회 (The Korean Electrochemical Society)
권호 표지
DOI QR코드

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TiO2@carbon Core-Shell Nanostructure Electrodes for Improved Electrochemical Properties in Alkaline Solution

  • Kim, Do-Young (Department of Chemical Engineering, Soongsil University) ;
  • Lee, Young-Woo (Department of Chemical Engineering, Soongsil University) ;
  • Han, Sang-Beom (Department of Chemical Engineering, Soongsil University) ;
  • Ko, A-Ra (Department of Chemical Engineering, Soongsil University) ;
  • Kim, Hyun-Su (Department of Chemical Engineering, Soongsil University) ;
  • Kim, Si-Jin (Department of Chemical Engineering, Soongsil University) ;
  • Oh, Sang-Eun (Department of Biological Environment, Kangwon National University) ;
  • Park, Kyung-Won (Department of Chemical Engineering, Soongsil University)
  • 투고 : 20120000
  • 심사 : 20120000
  • 발행 : 2012.05.31
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초록

We report nanostructure electrodes with $TiO_2$ as a core and carbon as a shell ($TiO_2$@C) for oxygen reduction in alkaline solution. The structure of core-shell electrodes is characterized by transmission electron microscopy, Raman spectroscopy, X-ray diffraction method, and X-ray photoelectron microscopy. The electrochemical properties of the $TiO_2$@C electrodes are characterized using a potentiostat and compared with those of carbon supported Pt catalyst. In particular, the core-shell electrode with dominant pyridinic-N component exhibits an imporved electrocatalytic activity for oxygen reduction reaction in alkaline solution.

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