Investigation of the Thiophene adsorption on Pt electrode in differentelectrolytes

In this paper Investigation of the Thiophene adsorption on Pt electrode in different electrolytes has been performed. All experiment was done at three electrolytes (0.5 M H2SO4, 0.5 M HClO4, 1 M KOH). Electrochemical measurement was done using CV and CA methods. The results of thisstudy showed that adsorption of thiophene in acidic electrolyte is proper than basic electrolyte. The optimum benzothiophene adsorption potential for 0.5 M H2SO4, 0.5 M HClO4, 1 M KOH is 0.2, 0.1 and -0.54, respectively. The best electrolyte for electro-adsorption of BT on Pt is H2SO4 withoptimum adsorption potential of 0.2 V.

Keywords:

Pt electrode , Electrochemical desulfurization , Thiophene adsorption , Electrolyte