ISSN (Online) : 2456 - 0774

Email : ijasret@gmail.com

ISSN (Online) 2456 - 0774

PVA/GO BASED POLYMER ELECTROLYTES FORFUELCELLAPPLICATION

Abstract

Polyvinyl alcohol (PVA)/graphene oxide (GO)-based polymer electrolytes have gained considerable attentionforfuelcellapplications due to their promising combination of mechanical strength, flexibility, and enhanced ionic conductivity. PVA, ahydrophilicpolymer with excellent film-forming ability and chemical stability, serves as an ideal host matrix. The incorporation of GO, withitshighsurface area and oxygen-containing functional groups, improves proton transport pathways, increases water retention, andenhancestheoverall conductivity of the composite electrolyte. These characteristics are critical for effective proton exchange membranefuelcells(PEMFCs), where efficient ion transport and thermal stability are essential for high performance and durability. Varioussynthesistechniques, including solution casting and crosslinking, are employed to optimize the PVA/GO membrane structure. Experimentalresultshave demonstrated that increasing GO content up to an optimal level leads to significant improvements in ionic conductivity, thermalstability, and mechanical properties without compromising membrane integrity. Additionally, PVA/GOmembranes exhibitgoodchemical resistance and low fuel permeability, making them a viable alternative to conventional Nafion-based membranes.Thedevelopment of cost-effective, environmentally friendly PVA/GO polymer electrolytes holds significant potential for advancingnext-generation fuel cell technologies aimed at sustainable energy solutions. Fuel Cell Fuel cells are devices that convert chemical energy directly into electrical energy through an electrochemical reaction—withoutcombustion. The most common fuel used is hydrogen, which reacts with oxygen (typically from air) to produce electricity, water, andasmall amount of heatKeywords:1. Anode – Where hydrogen gas is introduced and split into protons and electrons. 2. Electrolyte – Allows only protons to pass through, forcing electrons to travel through an external circuit, generating electricity. 3. Cathode – Where protons and electrons recombine with oxygen to form water.

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