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제124회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Electrochemical energy storage evaluation of the nanostructured V2O5 prepared via one-step anodization

2019년 9월 10일 15시 46분 43초
ENVR.P-463 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 17일 (목요일) 11:00~12:30
Environmental Energy
저자 및
Hyeonkwon Lee, Jaewon Lee1, Kiyoung Lee2,*
department of nano & materials science and enginee, Kyungpook National University, Korea
1School of Nano & Materials Science and Engineerin, Kyungpook National University, Korea
2School of Nano & Materials Science and Engineering, Kyungpook National University, Korea
Recently energy storage has become a big issue since most of the energy devices have either low energy and/or power densities. So it is essential to develop highly capacitive energy storage devices. Among energy storage devices, pseudocapacitive energy storage devices (Supercapacitors) have been attracting great attention because of its intermediate position of energy and power density on the Ragone plot. Several materials are being investigated for enhancement of the energy and power density of the supercapacitors. Among various materials, especially vanadium pentoxide (V2O5) is one of the most attractive materials because it has high theoretical capacity due to several oxidation states enabling multiple electron transfer. Various wet chemical methods have been used to prepare V2O5, however these methods time consuming, require additional binders to form the electrodes. Herein, we fabricated vertically aligned V2O5 nanostructure directly on the vanadium metal substrate by anodization and evaluated electrochemical performances for high energy density electrochemical application.