cyclic voltammetry

소개글

네른스트 방정식/ CV 실험
Epa, Epc, ipc, ipa 구하기

목차

1. 실험 제목
2. 실험 목적
3. 실험 방법
4. 실험 결과
5. 고찰
6. 참고 문헌

본문내용

1. 실험 제목 : Cyclic Voltammetry (CV) Experiment

2. 실험 목적 (Objective)
: The CV experiment is a basic electrochemical experiment, which allows us to identify the change in oxidation/reduction reactions of substances dissolved in the solution on the electrode surface as this voltage is changed linearly. Through this experiment, it is possible to have a basic understanding of the charge transfer and material transfer of materials participating in oxidation/reduction reactions at electrodes, to predict the standard return potential, as well as to obtain the diffusion coefficient using the correlation between the scan rate and the peak current.

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[확산 계수 계산]
가역적 반응을 통한 산화 또는 환원 피크 전류인 ip는 25℃에서 Randles-Sevcik equation 을 따라 다음과 같은 식을 나타낸다.
│ip │= (2.69×105)n3/2AD1/2v1/2C*0
(n: Number of electrons involved in the electrochemical reaction formula, A: area of electrode(cm2), C: concentration of electrically active chemical species(mol/L), D: diffusion coefficient of electrically active chemical species (m2/s), v: injection rate (V/s)

참고 자료

화학백과, 순환 전압전류법 [cyclic voltammetry]
류순호, 네른스트식 [Nernst equation]. 토양사전, 2000. 10. 15.
cyclic voltammetry, https://en.wikipedia.org/wiki/Cyclic_voltammetry