Multi-stimulus responsive polyoxometalate-viologen hybrid ionic liquids for rewritable inkless printing and environmental monitoring.

ABSTRACT: Multi-stimulus responsive materials have attracted significant attention due to their ability to respond dynamically to multiple external stimuli, including light, temperature, and chemical signals. Achieving both rapid response times and precise selectivity is essential for advancing the functionality of such materials. In this study, five polyoxometalate-based viologen ionic liquids (ILs) were synthesized through ion exchange between H₃PMo₁₂O₄₀ and viologen ILs with varying substituents. These ILs demonstrated multi-stimulus responses to light and ammonia gas. Under Xe lamp irradiation, all ILs exhibited prominent photochromism, with C₁₂-PMo₁₂ undergoing a rapid change from light yellow to light green within just 5 seconds. Exposure

SUBMITTER: Deng H 

PROVIDER: S-EPMC12548567 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature