| 학회 |
한국화학공학회 |
| 학술대회 |
2018년 가을 (10/24 ~ 10/26, 대구 EXCO) |
| 권호 |
24권 2호, p.1774 |
| 발표분야 |
이동현상(Transport Phenomena) |
| 제목 |
Prediction of concentration profiles of finite-size ions near an electrode under alternating voltage condition |
| 초록 |
The ion transport inside a cell determines the output power and capacitance of the electrochemical device. We focus on the transport of ions near an electrode because ions are reacted and electric double layers (EDLs) are formed near the electrode. Previous continuum modelling of ion transport considered finite sizes of ions and mobility as a function of ion concentration. The research focused on simulating the cyclic voltammetry and obtaining the capacitance of the system. In this work, we focus on the EDL structure and ion concentration profiles near the electrode by using continuum modelling. We adopt the alternating voltage condition in order to understand the effect of voltage inversion on the transport of ions. The electric field and the amount of reaction source are varied to understand their effects on the rate of reaction. Moreover, the frequency of alternating voltage is varied in order to understand the effects of varying reaction time. |
| 저자 |
박윤성, 신상배, 정운룡, 강인석
|
| 소속 |
포항공과대 |
| 키워드 |
이동현상 |
| E-Mail |
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| 원문파일 |
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