| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 가을 (11/08 ~ 11/10, 부산 벡스코(BEXCO)) |
| 권호 |
21권 2호 |
| 발표분야 |
환경에너지_포스터 |
| 제목 |
Enhancement of desalination performance via fluorination on activated carbons used in asymmetric capacitive deionization |
| 초록 |
Fluorination is one of the effective surface treatment methods on carbon materials because of high electronegativity of fluorine atoms. In this study, activated carbons (ACs) were fluorinated and used in electrode materials for asymmetric capacitive deionization (CDI). Changes in textural properties and surface chemical properties of ACs after the fluorination were measured by N2 adsorption/desorption analysis and X-ray photoelectron spectroscopy (XPS), respectively. In desalination tests, asymmetric CDI cells assembled with an untreated AC electrode (ACR) as the counter electrode and a fluorinated AC electrode (ACF2) as the cathode (RF-) or anode (RF+). For RF-, the salt adsorption capacity and charge efficiency were increased from 10.2 mg/g and 0.58 to 12.6 mg/g and 0.76, respectively, compared with the CDI cell assembled with identical ACR electrodes. It is attributed that ACF has a cation attractive effect originating from the high electronegative fluorine functional groups. |
| 저자 |
조한주, 김경훈, 정민정, 이경민, 이상민, 이영석
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| 소속 |
충남대 |
| 키워드 |
fluorination; activated carbons; asymmetric capacitive deionization
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| E-Mail |
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