Existing catalysts for ethanol oxidation in direct ethanol fuel cells (DEFC) are faced to significant challenges due to their poor performance and CO like intermediates poisoning tolerance at anode surface. Hence researchers are looking for new electrocatalysts in the ethanol oxidation. In this study, polypyrrole/N-doped graphene oxide (PPy/NGO) nanocomposite was prepared using in-situ polymerization method. Next the platinum-palladium (PtPd) was electrochemically decorated on PPy/NGO nanocomposite surface. In order to ensure the correct preparation of nanocomposite, fourier transform infrared spectroscopy (FT-IR) analysis was carried out to peruse the chemical structure of the nanocomposite and also to investigate their morphology, field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD) were used. The morphology of nanocomposite shows that PPy has penetrated into the space between NGO plates. Disparate electrochemical techniques like cyclic voltammetry (CV), linear sweep voltammetry (LSV) and chronoamperometry (CA) were employed to evaluate the oxidation of ethanol. Results showed that PtPd/PPy/NGO exhibits improved electrocatalytic activity and stability for ethanol oxidation. Enhanced active surface area of the PtPd/PPy/NGO electrode (35.1 m² g⁻¹) contributes to increase in current density and decrease in over potential values in the ethanol oxidation as compared to PtPd electrocatalyst.

直接乙醇燃料电池（DEFC）中用于乙醇氧化的现有催化剂由于其性能不佳以及阳极表面的CO类中间体的中毒耐受性而面临着严峻挑战。因此，研究人员正在寻找乙醇氧化中的新型电催化剂。本研究采用原位聚合法制备了聚吡咯/ N掺杂氧化石墨烯（PPy / NGO）纳米复合材料。接下来的铂钯（PtPd）在PPy / NGO纳米复合材料表面进行了电化学修饰。为了确保正确制备纳米复合材料，进行了傅里叶变换红外光谱（FT-IR）分析，以仔细研究纳米复合材料的化学结构，并研究其形态，场发射扫描电子显微镜（FE-SEM）和X使用X射线衍射（XRD）。纳米复合材料的形态表明，PPy已渗透到NGO板之间的空间中。采用了不同的电化学技术，例如循环伏安法（CV），线性扫描伏安法（LSV）和计时电流法（CA）来评估乙醇的氧化。结果表明，Pt Pd / PPy / NGO表现出改善的电催化活性和对乙醇氧化的稳定性。铂的有效表面积增加与Pt Pd电催化剂相比，Pd / PPy / NGO电极（35.1 m ²  g ^-1）有助于电流密度的增加和乙醇氧化中过电势值的降低。