| 학회 | 한국재료학회 |
| 학술대회 | 2020년 가을 (11/18 ~ 11/20, 휘닉스 제주 섭지코지) |
| 권호 | 26권 1호 |
| 발표분야 | C. 에너지 재료 분과 |
| 제목 | Study of photocatalytic conversion to fuels; CdS/Bi2S3 QDs/TiO2 nanorods |
| 초록 | Van-Quyet Nguyen *, J. M. Yangⱡ, and B. Yang* *Kumoh National Institute of Technology, Yangho-dong, Gumi-si, Gyeongbuk, 730-701, South Korea School of Materials Science and Engineering, Fax: +82-(54)-478-7741, E-mail address: [email protected] ⱡMeasurement & Analysis Division, National Nanofab Center, KAIST 291 Daehak-ro, Yuseong-gu, Daejeon city 34141, Korea The purpose of this research is on the development of a multi-electron double electrodes for the synthesis of highly efficient solar CO2 conversion to methanol using hybrid nano-composite with infrared / visible absorption property. In order to realize this, it is important to study the mechanism of conversion by photoelectrochemical multi-electron(≥6e-) transfer reaction, fundamental research of adsorption and activation of dissolved CO2 forms HCO3- and CO32- ions, inhibition of H+/H2 reaction and mechanism of CO2 methanol conversion identification. In this study, analysis study of photocatlaytic CO2 conversion into fuel for Cu2O/TiO2, CdS(Bi2S3)/TiO2 nanotubes electrodes, and sensitizer (cyanoacrylic acid)/TiO2/catalyst (ReI(CO)3Cl) electrodes was performed.To improve CO2 conversion methanol efficiency those fundamental research is important. Identification of CO2 fuel conversion mechanism was performed by E-TEM analysis using highly efficient hybrid nano-composites. In order to realize this, it is important to study CO2/H2O gas adsorption and crystallographic transform (recrystallization, grain growth, (ir-)reversible crystallization) on surface of photocatalysts conversion into fuels, stability analysis of material for CO2 conversion reaction. Photocatalytic hybrid nano-structures were confirmed by FE-SEM and TEM. CO2 to CH3OH conversion tests were conducted using three electrode system under visible light that of intensity 100mW/cm2. Products of CO2 reduction was collected by micro-syringe and subsequently transferred to the quartz cuvette involving chemical reagent of CH3OH to coloured solution conversion selectively for qualitative measurement by UV-Vis absorbance. Quantitative measurement of CH3OH was also conducted by GC-MS (gas chromatography-mass spectrometer). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education Science and Technology(MEST) (2018R1D1A1B03029669) *Corresponding Author: (BeeLyong Yang), (Kumoh National Institute of Technology, Korea), ([email protected]) |
| 저자 | Van-Quyet Nguyen1, J. M. Yang2, Bee Lyong Yang3 |
| 소속 | 1Kumoh National Institute of Technology, 2ⱡMeasurement & Analysis Division, 3National Nanofab Center |
| 키워드 | photocatalytic; conversion; fuels; CdS/Bi2S3 QDs/TiO2 nanorods |
