Investigation of the chemical adsorption of gases on nickelous oxide and of its solid solutions with lithium oxide

Selection and Evaluation of Contact Catalysts

“…A solid with a small electronic work function is a strong electron donor and can be thought of as a Lewis base. A This relative basicity or acidity compared to an adsorbed hydrocarbon, for example, affects the direction of electron transfer and the type of adsorbed complex formed (9,20,30,48,55,58); thus one might find a regular trend of intrinsic catalyst activities and selectivities as the electronic work function or basicity of the catalyst is varied. A maximum activity or selectivity may occur at some intermediate electronic property of the solid, when the proper balance between adsorption rate of reactants and desorption rate of products has been reached.…”

“…If a catalyst is supported, it may be necessary to know the separate surface areas of the support and the catalyst (62, 68), or if the catalyst is in solid solution, a separate phase, or chemically combined with the support (33,73,82). The study of differences of adsorption of gases on various catalyst modifications may give insight on the changes of surface states (20,30,32,48,50), which is of prime importance in characterizing the catalyst.…”