Fabrication of Pd-loaded α-Fe2O3 decorated rGO hybrids for highly sensitive H2 sensing

Pd-loaded alpha-Fe2O3 particles decorated on reduced graphene oxide (rGO) hybrids have been successfully synthesized via hydrothermal. This simple strategy can be expected to provide the conditions for the manufacture of similar metal oxide mixtures using different precursors. The morphological and structural characteristics of the product were investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectrometry (XPS). Utilized as the composite materials in sensors, the sensor based on Pd(0.5%)-Fe2O3 / rGO demonstrated an excellent selectivity towards H-2 at 180 degrees C in various gases, with a highly sensitive response of 78.4% along with a fast response and recovery (19 s, 6 s) to 1000 ppm H-2. The combination of alpha-Fe2O3 particles decorated on rGO and catalytic activity of Pd-0 -loaded present a very charming sensing behavior for applications as real-time monitoring gas sensors.

Automated summary

A composite material of Pd-loaded alpha-Fe2O3 particles decorated on rGO was successfully synthesized via hydrothermal method, showing excellent selectivity and sensitivity towards hydrogen gas in sensors application. The combination of alpha-Fe2O3 particles decorated on rGO and catalytic activity of Pd-0 presents a charming sensing behavior for real-time monitoring gas sensors.