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TiO2@carbon Core-Shell Nanostructure Electrodes for Improved Electrochemical Properties in Alkaline Solution
- Authors
- Do-Young Kim; 이영우; Sang-Beom Han; A-Ra Ko; Hyun-Su Kim; Si-Jin Kim; 오상은; 박경원
- Issue Date
- May-2012
- Publisher
- 한국전기화학회
- Keywords
- Nanostructure materials; Core/shell; N-doping; Oxygen reduction reaction
- Citation
- 전기화학회지, v.15, no.2, pp.90 - 94
- Journal Title
- 전기화학회지
- Volume
- 15
- Number
- 2
- Start Page
- 90
- End Page
- 94
- ISSN
- 1229-1935
- Abstract
- We report nanostructure electrodes with TiO2 as a core and carbon as a shell (TiO2@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 TiO2@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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Related Researcher
- PARK, KYUNG WON
- College of Engineering (Department of Chemical)