Characterization of WO₃/Silicone Rubber Composites for Hydrogen-Sensitive Gasochromic Application.

ABSTRACT: WO₃ and silicone rubber (SR)-based gasochromic composites were fabricated to detect hydrogen leaks at room temperature. WO₃ rod-like nanostructures were uniformly distributed in the SR matrix, with a particle size of 60-100 nm. The hydrogen permeability of these composites reached 1.77 cm³·cm/cm²·s·cm_Hg. At a 10% hydrogen concentration, the visible light reflectance of the composite decreased 49% during about 40 s, with a color change rate of 6.4% s^-1. Moreover, the composite detected hydrogen concentrations as low as 0.1%. And a color scale was obtained for easily assessing hydrogen concentrations in the environment based on the color of composites. Finally, the composite materials as disposable sensors underwent testing at

SUBMITTER: Wang L 

PROVIDER: S-EPMC11314044 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature