| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 |
25권 1호, p.402 |
| 발표분야 |
에너지 환경(Energy and Environment) |
| 제목 |
Surface Functionalization of Ionovoltaic Energy Conversion Device for Monitoring Ion-specific Adsorption at the Solid-liquid Interface |
| 초록 |
Aqueous ion-solid interaction has been actively studied in diverse research fields. However, a detailed understanding of electric double layer (EDL) and the interaction at the EDL still remains in a poor level due to specific interfacial conditions and a complexity of an observation. Recently, an energy conversion device using a dynamic water motion (called ionovoltaic device) has been highlighted not only as an energy harvesting system but also as a novel monitoring technique of the solid-liquid interface. Herein, specific adsorption of biologically harmful heavy metal ions (Cu2+ and Pb2+) at the solid-liquid interface was monitored using surface-functionalized ionovoltaic energy generating device. The device showed selective variations of the generated voltage for Cu2+ and Pb2+ even in a mixed solution. Interfacial potential variation by the specific adsorption was investigated for elucidating a working mechanism of the device. The experimental results can give a novel method of probing molecular-level ion-solid interactions with the simple and cost-effective device. This approach can extend the understanding of the ion-surface interactions at the EDL. |
| 저자 |
윤선근, 김호정, 이원형, 한정협, 권용현, 김연상
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| 소속 |
서울대 |
| 키워드 |
에너지 환경 |
| E-Mail |
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| 원문파일 |
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