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Can I read Inverse gas chromatographic investigation of the effect of hydrogen in carbon monoxide adsorption over silica supported Rh and Pt–Rh alloy catalysts, under hydrogen-rich conditions on EtoBox?
Inverse gas chromatographic investigation of the effect of hydrogen in carbon monoxide adsorption over silica supported Rh and Pt–Rh alloy catalysts, under hydrogen-rich conditions by Dimitrios Gavril; Vassilios Loukopoulos; Aglaia Georgaka; Aristea Gabriel; George Karaiskakis is a Chemistry article available to read on EtoBox.
What is Inverse gas chromatographic investigation of the effect of hydrogen in carbon monoxide adsorption over silica supported Rh and Pt–Rh alloy catalysts, under hydrogen-rich conditions about?
Selective CO oxidation (SCO) has attracted scientific and technological interest due to its application to the operation of proton electrolyte membrane fuel cells (PEM-FCs). CO adsorption, being an elementary step of SCO, is studied over silica supported monometallic Rh and Rh 0.50 + Pt 0.50 alloy catalysts, under various hydrogen atmospheres, namely: 25% H 2 + 75% He, 50% H 2 + 50% He and 75% H 2 + 25% He carrier gas mixture compositions. The investigation of CO adsorption is done by utilizing reversed-flow gas chromatography (RF-GC). As a result rate constants for the adsorption (k 1 ), desorption (k -1 ) and irreversible CO binding (k 2 ) over the studied catalysts as well as the respective activation energies are determined. The variation of the rate constants and the activation energies against the nature of the used catalyst (monometalic or alloy) and the amount of hydrogen in the carrier gas gives useful information for the selectivity as well as the activity of CO oxidation over group VIII noble metals. At low temperatures and under H 2 -rich conditions compatible with the operation of PEM fuel cells the activity of the monometallic and the alloy catalysts is expected to be
Who reads Inverse gas chromatographic investigation of the effect of hydrogen in carbon monoxide adsorption over silica supported Rh and Pt–Rh alloy catalysts, under hydrogen-rich conditions?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Dimitrios Gavril; Vassilios Loukopoulos; Aglaia Georgaka; Aristea Gabriel; George Karaiskakis
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 1873-3778)
- Published
- 2005
- Language
- EN
- Field
- Chemistry (Physical Sciences)