Hello,I am new in electrochemistry .In my lab we are using flow cell for CO2RR electroreduction but problem is CA(chrono amperometry ) looks like heart beat or sometime fluctuate can you suggest any solution thanks.
I would ask, is the flow cell active when you take chronoamperometry (CA) experiments? You want the solution to be very still when performing CA. How frequently are the "heart beat" fluctuations occurring? Also, how long are you taking chronoamperometry experiments for and what are you trying to measure?
@@Pineresearch I am measuring the CO2 Reduction reaction products which are release at specific potential ,each batch are tested for 1 hour then i increase the potential for next testing(0.7 -1.3 V vs RHE testing window)which is applied during CA,Yes flow cell is active during whole CA experiment,frequency is very high at higher potential
@@behrozkhan3179 Just to clarify, the potentials you mentioned (0.7 - 1.3 V) vs RHE, I assume those are negative potentials, and when you say "higher potentials" you are referring to higher negative potentials. If you are running CA for 1 hour, one thing to note is how often are you sampling? If you are sampling quickly, every 100 millisecond, then you are going to capture a lot of noise and processes that are occurring during those time scales. You also will generate too many data points (36,000 data points). But if you are sampling at a lower rate (1 data point every 1 second --> 3,600 data points) you might observe a different amount of noise or recurring "heart beat" signals. All that being said, it's hard to diagnose the issue without seeing the CA data, but I hope this helps.
@@behrozkhan3179 You can email us at pinewire@pineresearch.com. Mention that you've been talking with Alex via RUclips, and we can continue our conversation via email.
Hello sir, how can we calculate current contribution in cyclic voltammetry in case of EDLC type electrode material?
We can definitely talk about this on the next livestream! Episode #53
Hello,I am new in electrochemistry .In my lab we are using flow cell for CO2RR electroreduction but problem is CA(chrono amperometry ) looks like heart beat or sometime fluctuate can you suggest any solution thanks.
I would ask, is the flow cell active when you take chronoamperometry (CA) experiments? You want the solution to be very still when performing CA. How frequently are the "heart beat" fluctuations occurring? Also, how long are you taking chronoamperometry experiments for and what are you trying to measure?
@@Pineresearch I am measuring the CO2 Reduction reaction products which are release at specific potential ,each batch are tested for 1 hour then i increase the potential for next testing(0.7 -1.3 V vs RHE testing window)which is applied during CA,Yes flow cell is active during whole CA experiment,frequency is very high at higher potential
@@behrozkhan3179 Just to clarify, the potentials you mentioned (0.7 - 1.3 V) vs RHE, I assume those are negative potentials, and when you say "higher potentials" you are referring to higher negative potentials. If you are running CA for 1 hour, one thing to note is how often are you sampling? If you are sampling quickly, every 100 millisecond, then you are going to capture a lot of noise and processes that are occurring during those time scales. You also will generate too many data points (36,000 data points). But if you are sampling at a lower rate (1 data point every 1 second --> 3,600 data points) you might observe a different amount of noise or recurring "heart beat" signals. All that being said, it's hard to diagnose the issue without seeing the CA data, but I hope this helps.
@@Pineresearch I can send you the data but don't know where to send it.Yes sampling rate is 0.1V/s . anyway thanks a lot for your kind help.
@@behrozkhan3179 You can email us at pinewire@pineresearch.com. Mention that you've been talking with Alex via RUclips, and we can continue our conversation via email.