Abstract
A novel breakthrough has been achieved in gas detection through the innovative application of surface-enhanced Raman scattering (SERS) to hydrogen (H2) detection for the first time. This study capitalizes on the unique SERS effects of gold nanoparticles coupled with the redox interaction between hydrogen and crystal violet, allowing for the development of a magnetic SERS probe that demonstrated enhanced sensitivity and specificity. This new probe can detect hydrogen concentrations as low as 1% by volume in gaseous environments, offering a substantial improvement over the detection limits of traditional hydrogen alarms. Further, this report comprehensively detailed the synthesis of the FA-CV materials, instrumental analysis, and an in-depth evaluation of the SERS performance of the FA-CV substrate, underlining the outstanding sensitivity, stability, and recyclability of the probe. The introduction of SERS in this novel capacity not only contributes a valuable approach to gas sensing technologies, but also suggests promising avenues for the application of SERS in environmental monitoring and energy security. This illustrates the adaptability and potential impact of this powerful technique.
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