Technology Research on CH4 Sensor with Pd Catalyst using Support...

Templates with Al2O3 nanoporous was prepared in method of in-situ growth. A nano-material carrier of γ-Al2O3-ZrO2-ThO2 was designed by chemical deposition based on these templates. Using this carrier as active components, a Pd catalyst with high catalytic oxidation activity was fabricated for CH4 sensor. As analysis of scanning electron microscopy(SEM) shown, the Pd catalyst could uniformly distribute in the nano-material carrier of γ-Al2O3-ZrO2-ThO2. A CH4 sensor with Pd catalyst in the nano-ma