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Can I read Oxygen Chemisorption on Carbon on EtoBox?
Oxygen Chemisorption on Carbon by T.C. Brown; A.E. Lear; B.S. Haynes is a Engineering article available to read on EtoBox.
What is Oxygen Chemisorption on Carbon about?
The chemisorption of oxygen on outgassed Spherocarb has been studied over a wide range of conditions (temperatures from 420 to 920 K, oxygen partial pressures from 10 -2 to 8 x 104 Pa, and exposure times from 1 to 900 min) in order to investigate the relationship between the formation of complexes and the transient gasification of carbon and to determine the kinetics of these processes. Two distinct mechanisms have been identified for the formation of surface oxides: Type A which occurs with the adsorption of oxygen without gasification of the substrate and Type B which is formed with the gasification of one C-atom for every O-atom chemisorbed: --C + Oz ~ --C(O) + CO, CO2 (one Type B O-atom adsorbed + one C gasified) Type A complexes are favoured at lower temperatures and short exposures and are not stable at higher temperatures (>600 K). The kinetics and extent of formation of each type of complex may be described in terms of a distribution of activation energies for adsorption. The characteristic activation energy at any instant under particular conditions is given by where Zoz is the collision frequency of oxygen with a site and is proportional to the oxygen partial pressure, an
Who reads Oxygen Chemisorption on Carbon?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- T.C. Brown; A.E. Lear; B.S. Haynes
- Publisher
- Elsevier Science; Elsevier ; Elsevier Ltd; Elsevier BV (ISSN 1540-7489)
- Published
- 1992
- Language
- EN
- Field
- Engineering (Physical Sciences)