Study the effect of Ni/ZnO,Cu/ZnO and Co/ZnO presence in reaction layer of platinum electrodeposited electrode for methanol oxidation reaction in low temperature methanol fuel cell system

Nowadays, methanol fuel cell systems has been attracted research activities to investigate for facilitating methanol oxidation reaction. One of activities is concentrated on improving electro catalysts. ZnO and its derivatives can be used as additive in substrate of electrode. In this work, a simple low temperature hydrothermal method has been used for synthesis of different morphologies of ZnO with 1% mol Ni,Cu and Co nanostructures. The prepared nanostructures was applied to form composition of electrode substrate. Then platinum was electrodeposited by cyclic voltammetry on substrate of electrode. Prepared electrodes was investigated for methanol oxidation reaction in three electrode half-cell system by the electrochemical methods like as linear sweep voltammetry. According our results, at optimum condition by adding Ni doped ZnO in electrode substrate, the current density is increased and a significant reduction in anodic over voltage compared to other electrodeswas observed

Keywords:

Methanol fuel cell , Platinum electrodeposited electro catalyst , Methanol oxidation reaction