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Abstract For sustainable hydrogen energy generation systems, safe, repeatable, and cost-effective hydrogen gas-leakage monitoring is required. In this study, transparent and flexible hydrogen gas sensor membranes that satisfy the above… Click to show full abstract
Abstract For sustainable hydrogen energy generation systems, safe, repeatable, and cost-effective hydrogen gas-leakage monitoring is required. In this study, transparent and flexible hydrogen gas sensor membranes that satisfy the above requirements were prepared. Pt/WO3-thin films were deposited on the surface of polydimethyl siloxane (PDMS) membranes previously modified with hydroxyethyl acrylamide (HEAAm) via ultraviolet light-induced graft polymerization. Such grafted HEAAm provided an acid- and heat-resistant hydrophilic surface, where hydrogen gasochromic Pt/WO3 particles can be deposited to form a thin film. The thus prepared Pt/WO3 thin film-coated PDMS membranes show significant colorimetric response toward hydrogen gas.
Journal Title: Materials Chemistry and Physics
Year Published: 2019
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