it is often found that hydrogen desorption/adsorption peaks for Pd/C or Pt/C based materials in concentrated electrolyte solution e.g. 1 M KOH/H2SO4 are not clearly appeared. Diluting the electrolyte solution (lets say 0.25 M) we observed the indicated peaks are to be appeared clearly. Why this phenomenon has been found?
Please suggest.
Hi dr. Dutta,
first - It seems that there are peaks H2 ads/desorb. on Pt, or Pd. not on C. usually the peaks current not depended from OH concentration (~0.1 to ~1 M).
Try to receeve the effect on bare Pt/Pt electrode with area
Thanks for your reply. But it is happening in our case that diluting the electrolyte solution i.e from 1 M to 0.25 M, a small hump has been found in the hydrogen adorp/desorption region.
Hi Dr. Dutta,
If you received the hump on Pt/Pt (A,0.1 cm2) it will beinteresting
regards
boris f
Hi Dr. Dutta,
OK- in my opinion it is expedient do do the same with Pd/Pd (electrochemistry in general is similar)
If you received the hump on Pd/Pd (A,0.1 cm2) it will be also interesting
regards
bf
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