Adsorption and Catalysis on Transition Metals and Their Oxides

Influence of annealing temperature on the CO sensing mechanism for tin dioxide based sensors–Operando studies

“…The latter could be a follow up of: (a) the thermal instability of the surface intermediates [38] and/or (b) saturation of the MCT detector [43]. At this temperature an additional reaction at the surface of tin dioxide not mentioned until now, becomes possible (reaction with double ionised oxygen):…”

“…IR bands for surface species on oxides are usually assigned by analogy with the corresponding bulk structures [38]. Special attention has to be paid, because different forms of ionised oxygen are considered to be the reaction partners for CO on the tin dioxide surface, and not an oxygen atom, as commonly assumed in IR studies on metal oxides.…”

IMC formation on BGA package with Sn–Ag–Cu and Sn–Ag–Cu–Ni–Ge solder balls

“…The dissolved Cu (in Ni 3 Sn 4 compounds) or Ni (in Cu 6 Sn 5 compounds) may have effect on the crystal size. It was pointed out [15] that the transition metals play an important role in catalysis. Nickel is a typical transition metal while copper is a non-transition metal [16].…”

Adsorption and Reaction of CO2 on the RuO2(110) Surface

“…1,2 So far, the bonding, structure, and reactions of CO 2 adsorbed on single-crystal metal surfaces have been extensively studied. 3,4 However, less information is available on the interaction of CO 2 with wellcharacterized metal-oxide surfaces.…”