Oyunbileg Galindev

6 Questions 8 Answers 0 Followers

Questions related from Oyunbileg Galindev

How should the teflon cell used in the RDE measurement be cleaned ?

Cleaning of glassware for RDE was explained very clearly by Garsany et.al. But, for the teflon cell, the plastic cap of a glass cell, stopper and teflon tubes, what cleaning way is proper and...

03 March 2015 886 3 View

How can I increase the current density for ORR of Pt/C?

I record ORR by RDE method. My the current density for ORR usually ranges 4-5 mA/cm2 at 1600 rpm in acid or basic electrolyte. However, the current density appears near 6 at mA/cm2 at 1600 rpm in...

03 March 2015 5,482 10 View

Is there any sequence to connect WE, CE and RE for RDE?

We use 3 electrodes. Is there any sequence to connect WE, RE, CE for RDE? Also, the positions of those electrodes in the electrolyte solution? I usually place left side is CE and right side RE and...

01 January 2015 5,136 4 View

How can I reduce noise on the cyclic voltammogram during RDE measurement?

When i measure cyclic voltammogram for ORR, there are many noises with high intensities? What causes this? Does it lead to appear noises in current signal if molar concentration of the...

01 January 2015 8,600 11 View

How can I produce very even coverage of Pt/C catalyst on the GC electrode surface?

It requires a considerable tricky method to do a perfect catalyst coverage on the electrode surface? Is there any difference between aqueous ink and alcoholic aquoeus ink? Is it better to add...

01 January 2015 6,760 2 View

Why do my electrodes burn during RDE measurements?

This problem occurs during RDE measurement on a catalyst. After measurement, it became burned. Then I polished it by abrasive paper to smooth its surface and then 0.5 um Al slurry. But the...

12 December 2014 7,614 7 View