Reactions of Immobilized Palladium (II) Complexes with Carbon Monoxide

Palladium (II) complex compounds, having been immobilized on the dried inner surface of nano-porous silicate glass, were studied. The solid specimens containing the Pd(II) salts and organic complexes were fabricated and tested in respect to their spectral reaction on carbon monoxide in atmosphere. The specimens have demonstrated gradual and reversible colour changes while interacting with carbon monoxide. The reaction mechanisms are supposed to be connected with formation and dissociation of the coordination compounds on the nano-porous glass inner surface. Possible applications of the research results in chemical sensors of carbon monoxide in atmosphere were discussed. Chemical interpretation of the processes was given.