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落叶犹存木虫 (正式写手)
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[求助]
potential step voltammetry
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大家好，最近老师让做一道题，用matlab模拟电势阶跃。对于从来没有接触过matlab的小虫来说，实在不知道怎么入手。在此跪求大神帮我写个code。金币不是问题。 Potential Step Voltammetry a) (20 points) Using MATLAB software (pdep solver), write a computer code that can be used to simulate a potential step experiment at a planar electrode to any arbitrary potential. Assume the following: 1. The only reaction that occurs: O + e- ←→ R 2. D iffusion coefficients are equal: Do = DR = D = 1 x 10- 9m2/s 3. O is initially present at a concentration of 1 mole/m3 and R is initially absent 4. Eo’= 0 V/SHE, A = 1 cm2, T = 298 K b) (10 points) From the code above, make plots of the concentration profile as a function of distance from the electrode surface and current as a function of time for the conditions below. Also, plot the analytical solutions (see section 5.5.1) on all graphs. 1. ko = 1.0 x 10- 5 m/s, α = 0.5, and E = - 0. 01, - 0. 05, - 0.1 V/SHE 2. ko = 1.0 x 10- 7 m/s, α = 0.5, and E = - 0.01, - 0.05, - 0.1 V/SHE 3. ko = 1.0 x 10- 9m/s, α = 0.5, and E = - 0.01, - 0.05, - 0.1 V/SHE c) (10 points) Discuss your results from part (b). |
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