The adsorption, desorption, and exchange reactions of oxygen, hydrogen, and water on platinum surfaces IV. Field emission studies on the adsorption of water, hydrogen and the reaction between hydrogen and adsorbed oxygen

Field electron emission microscopy has been used to study the adsorption of water on platinum and its production by the reaction of hydrogen with adsorbed oxygen. Techniques are described whereby clean reproducible Pt field emitters can be produced without irreversible contamination or excessive tip blunting. Direct water adsorption always led to emitter failure, consequently adsorbed water was produced by the reaction of hydrogen with adsorbed …