| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 봄 (04/12 ~ 04/13, 대전컨벤션센터) |
| 권호 |
37권 1호 |
| 발표분야 |
대학원생 구두발표 |
| 제목 |
Facile Fabrication of Reduced Graphene Oxide-MnO2 Nanocomposite Electrodes for Thin Film Supercapacitors via Pulsed White Light |
| 초록 |
Hybridizing with nano-size metal oxide particles, reduced graphene oxide (RGO) promises excellent electrochemical properties for supercapacitors. However, energy consumptive process is the main problem originated from long/high-temperature heat treatment, as well as additional reduction process. We realize a novel process in fabricating RGO-MnO2 nanocomposite electrodes of thin film supercapacitors by employing intense pulsed light irradiation. This process has advantageous points as (i) cost effective, (ii) millisecond-scaled high-speed, and (iii) room-temperature condition. The pulse irradiation successfully forms the MnO2 nanoparticles in GO-Mn precursor solution and then to anchor homogeneously onto the RGO sheets being reduced by the light simultaneously. Resultant nanostructures are extensively analyzed and examined. The electrode conductivity, ~500-nm-sized MnO2 formation on the RGO flakes, and most importantly the high specific capacitance of ~275 F/g at 20 mV/s are measured. |
| 저자 |
김선민1, 유태희1, 임정아1, 김종휘2, 송용원1
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| 소속 |
1한국과학기술(연), 2한국에너지기술(연) |
| 키워드 |
Graphene; MnO2; Pulse irradiation; Thin-film; Supercapacitors
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| E-Mail |
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