In fuel cell papers, because they wanted to reduce the precursors of metals to deposit them on their intended support they used reducing agents. However, here I want to exactly fabricate PbO2 on the carbon black powders. Do you think that I should add reducing agent or not. I feel that it is better not to add it. However, I'm not sure whether ethylene glycol (my solvent) can change the PbO2 structure (I mean like oxidizing pbo2 to pb3o4 or some thing like that). Would you please give me your recommendations.
Problem is that PbO2 represent Pb in its highest oxidation state (+4). Any reducing agent will risk changing it to +2 (PbO) or 0 (Pb metal). Pb3O4 is actually a lower or reduced oxidation state of Pb conceptually made up of PbO2 and (2X) PbO.
Ethylene glycol is a well known polyol (it has the ability to dissolve some salts, at certain temperature, and reduce the resulting metallic ions to there zero oxidation state at another temperature).
Thus, in your case, there is no benefit for using ethylene glycol. however, the use of oxidation reagents like hydrogen peroxide and the hypochlorides is very necessary to get PbO2.
Thanks Imad and Alan for your answer. You both lead me in a right direction.
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