Surface species investigation of Ni-Fe catalysts of CO₂ hydrogenation by TD MS analysis
The condition of Ni-Fe catalysts’ surface was investigated by the method of thermally programmed desorption with mass spectral analysis of desorbed particles (TD MS). TD spectra indicated the desorption of CO₂ (m/z = 44), CO (m/z = 28) and H₂O (m/z = 18) particles from the surface of samples with hi...
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| Datum: | 2017 |
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| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | English |
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Інститут хімії поверхні ім. О.О. Чуйка НАН України
2017
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| Schriftenreihe: | Поверхность |
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| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/148534 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Surface species investigation of Ni-Fe catalysts of CO₂ hydrogenation by TD MS analysis / R. Meshkini Far, A. Dyachenko, O. Bieda, O. Ischenko // Поверхность. — 2017. — Вип. 9 (24). — С. 104-110. — Бібліогр.: 15 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | The condition of Ni-Fe catalysts’ surface was investigated by the method of thermally programmed desorption with mass spectral analysis of desorbed particles (TD MS). TD spectra indicated the desorption of CO₂ (m/z = 44), CO (m/z = 28) and H₂O (m/z = 18) particles from the surface of samples with high and low catalytic activity in the reaction of CO₂ hydrogenation. Intermediate compounds CHO*, CH₂O* were not observed in the TD profiles for all investigated catalysts. On the basis of catalytic performance results and thermal desorption data it can be suggested that process of CO₂ hydrogenation over Ni-Fe catalysts proceeds via direct hydrogenation of CO₂ to CH₄. |
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