dc.contributor.author | Efstathiou, Angelos M. | en |
dc.contributor.author | Boudouvas, D. | en |
dc.contributor.author | Vamvuka, Despina | en |
dc.contributor.author | Verykios, Xenophon E. | en |
dc.creator | Efstathiou, Angelos M. | en |
dc.creator | Boudouvas, D. | en |
dc.creator | Vamvuka, Despina | en |
dc.creator | Verykios, Xenophon E. | en |
dc.date.accessioned | 2019-11-21T06:18:51Z | |
dc.date.available | 2019-11-21T06:18:51Z | |
dc.date.issued | 1992 | |
dc.identifier.issn | 0926-860X | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/55436 | |
dc.description.abstract | A kinetic study of methane conversion to C2-hydrocarbons was conducted by cofeeding methane and oxygen at 1 bar total pressure over a series of zinc-doped TiO2 catalysts. The zinc dopant concentration was varied between 1 and 4 wt.-% ZnO. Electrical conductivity measurements confirmed the incorporation of Zn2+ cations into the crystal lattice of rutile TiO2. It was found that the zinc oxide concentration had a larger effect on the activation energy of C2-hydrocarbons formation (between 68 and 46 kcal mol-1in the range 0-4 wt.-% ZnO) than of methane conversion (ca. 42 kcal mol-1) and COx formation (ca. 30 kcal mol-1). The relationship between the rates of methane conversion, C2-hydrocarbons and COx formation and oxygen pressure in the range 650-750° C was found to depend strongly on the ZnO dopant concentration. Temperature and oxygen pressure were found to affect strongly the relationship between the selectivity of C2-hydrocarbons formation and ZnO dopant concentration. This study indicated that there is no clear correlation between electrical conductivity, basicity/acidity and kinetic parameters of the partial oxidation of methane to C2-hydrocarbons for the present Zn2+-doped TiO2 catalysts. © 1992. | en |
dc.source | Applied Catalysis A, General | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0027111826&doi=10.1016%2f0926-860X%2892%2980275-H&partnerID=40&md5=d79e724a0e39ea3f34b30a9e6356fb4b | |
dc.subject | kinetics | en |
dc.subject | Synthesis (chemical) | en |
dc.subject | Thermodynamics | en |
dc.subject | Correlation methods | en |
dc.subject | Reaction kinetics | en |
dc.subject | Doping (additives) | en |
dc.subject | Activation energy | en |
dc.subject | Zinc oxide | en |
dc.subject | Oxidation | en |
dc.subject | Ethylene | en |
dc.subject | Titanium dioxide | en |
dc.subject | Catalyst activity | en |
dc.subject | Catalyst selectivity | en |
dc.subject | Methane | en |
dc.subject | Basicity acidity parameters | en |
dc.subject | Carbon oxides formation | en |
dc.subject | catalyst characterization (electrical conductivity) | en |
dc.subject | Ethane | en |
dc.subject | methane conversion | en |
dc.subject | Oxidative coupling | en |
dc.subject | titanium oxide | en |
dc.subject | Zinc oxide doped rutile | en |
dc.subject | zinc. | en |
dc.title | Kinetics of methane oxidative coupling on zinc-doped titanium oxide | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1016/0926-860X(92)80275-H | |
dc.description.volume | 92 | |
dc.description.issue | 1 | |
dc.description.startingpage | 1 | |
dc.description.endingpage | 15 | |
dc.author.faculty | 002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Χημείας / Department of Chemistry | |
dc.type.uhtype | Article | en |
dc.description.notes | <p>Cited By :7</p> | en |
dc.source.abbreviation | Appl.Catal.A Gen. | en |
dc.contributor.orcid | Efstathiou, Angelos M. [0000-0001-8393-8800] | |
dc.gnosis.orcid | 0000-0001-8393-8800 | |