Synthesis of Pd nanoparticle-decorated SnO2 nanowires and determination of the optimum quantity of Pd nanoparticles for highly sensitive and selective hydrogen gas sensor

[Display omitted] •Pd nanoparticle decorated SnO2 nanowires are fabricated.•Ppm scale hydrogen sensing properties are measured using Pd/SnO2 nanowires.•Sensing properties are optimized to manipulate the number of decorated Pd nanoparticles.•Enhanced sensing response of Pd/SnO2 nanowires are discusse...

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