I am in the process of roughening a silver electrode for SERS measurements using the latest version of CH Instruments. Most procedures in the literature mention sweeping the potential from -0.3 V to +0.2 V for three ORC cycles to achieve a roughened silver surface, with an observed color change after the process. I tried this procedure but did not observe any color change, and I am unsure if I am doing it correctly. Could anyone advise me on how to achieve this process using CH Instruments?
Please give me an email address. I can send you a chapter of handle book from Zhongqun Tian. I think it will be help for you.
Some of them I have checked. The method is very effective. It also gives the EC signal shape in roughening.
If you didn't see anything also in Raman. Please considering about poor connection and reference electrode. I see many people make mistakes of forgetting converting potential when they use different reference electrode.
@Sihan zhang Thanks for providing a comment to my question.
Here is my email [email protected]