Honeycomb Catalytic Converters Metal Catalyst Substrate

In 1978, S.J. Dow found that transition metals ruthenium, rhodium, palladium, osmium, iridium and platinum were loaded on titanium dioxide, and the adsorption of hydrogen and carbon monoxide was significantly reduced after hydrogen reduction at 773 ° F. He attributed this phenomenon that the surface area of the metal did not decrease but the adsorption capacity decreased significantly after high temperature hydrogen reduction to the strong interaction between the Square Metal Honeycomb Catalyst. The causes of strong Square Metal Catalytic Converters interaction are bonding between metal and carrier metal ions, electron migration between metal and carrier and mutual diffusion between metal and carrier. The strong metal-support interaction affects the adsorption capacity of catalyst for hydrogen and carbon monoxide, and inevitably changes its catalytic performance. The nature of strong metal-support interaction and its effect on catalytic performance need to be further studied.