Can we measure CO stripping test by simple CV machine? Please give me the procedure in detail.
If by a CV machine you mean a potenciostat, yes, all you need to do a CO stripping on Pt is a potenciostat and a CO cylinder (as pure as possible). The conditions to do your experiment depend on your electrolyte, pH and reference electrode
Hi Soumen
According with your questions, I guess you are working in anode for DMFC with nafion membrane, is´n it? With Pt/C 20% or Pt-based catalysts. Have you got a supervisor or are you working by yourself?
How is your material? You must be know your material and if it is comparable with Pt electrodes.
CO stripping... mandatory? This test is useful to know Pt surface area (as Anna says) also for the CO electrode tolerance, which is "related" with the methanol activity since one intermediate for MOR is just CO, and others. However, is not a trivial measurement. Many factor must be take in mind (seach in bibliography).
Comparison between materials: conditions, particle size, support, co-catalyst, ink preparation, etc ( search in bibliography)
MOR: mechanism, electrolyte, temperature and so on (search in bibliography)
So, Keep in mind what you want to do and develop your experiments according with. Try to understand what are you doing and why happen what it happen.
A more complete knowledge helps to solve any step in the way
Regards
as far as calculating ECSA is concerned its not mandatory but is highly sugessted to confirm. next in order to check the extent of catalysts resistance to surface poisoning effect , people do CO stripping experiments. this is because CO is the most abundant and poisoning intermedeate formed in DMFC and PEMFC. so it is very important to report its resistance to CO poisonong.
as far as experiment is concerned process is very simple but one has to take care because of the leakage of CO gas(poisonous). for experiment you can follow the following paper
http://pubs.rsc.org/en/Content/ArticleLanding/2013/CP/c3cp52649f#!divAbstract
all the best buddy
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