Role of oxygen in the nitrous oxide/carbon reaction


Autoria(s): Byrne, CP; Yang, RT; Zhu, ZH; Lu, GQ
Data(s)

01/01/2002

Resumo

An investigation of the role of oxygen in the nitrous oxide/carbon reaction was carried out on various carbon samples (both graphitic and nongraphitic) over a range of temperatures and partial pressures. Previous work reported that oxygen strongly inhibited the nitrous oxide/carbon reaction. Large ratios of O-2/N2O were used in all previous work. In this work, the O-2/N2O ratio was kept below 1, and we found that oxygen did not inhibit the rate of the C + N2O reaction. Instead, the rate of the reaction in the presence of oxygen was essentially that predicted by the two independent reactions, nitrous oxide/carbon and oxygen/carbon, occurring simultaneously. A simple theoretical explanation is given for the observations, both past and present, on the basis of competitive chemisorption of nitrous oxide and oxygen on active sites.

Identificador

http://espace.library.uq.edu.au/view/UQ:63116

Idioma(s)

eng

Publicador

American Chemical Society

Palavras-Chave #Chemistry, Physical #Scanning-tunneling-microscopy #Supported Copper-catalysts #Fluidized-bed Combustion #Nitric-oxide #No Reduction #Unified Mechanism #Basal-plane #Gasification Reactions #Activated Carbons #Kinetics #C1 #250103 Colloid and Surface Chemistry #660199 Energy transformation not elsewhere classified
Tipo

Journal Article