Impact of Parent Zirconia Crystallinity/Amorphicity on the n-heptane Isomerization over Pt/WO3-ZrO2 Catalysts

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F15%3A00444884" target="_blank" >RIV/61388955:_____/15:00444884 - isvavai.cz</a>
Alternative codes found
RIV/62243136:_____/15:MPO05CL
Result on the web
<a href="http://dx.doi.org/10.9734/BJAST/2015/18557" target="_blank" >http://dx.doi.org/10.9734/BJAST/2015/18557</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.9734/BJAST/2015/18557" target="_blank" >10.9734/BJAST/2015/18557</a>

Result language
angličtina
Original language name
Impact of Parent Zirconia Crystallinity/Amorphicity on the n-heptane Isomerization over Pt/WO3-ZrO2 Catalysts
Original language description
A series of WO3-ZrO2 catalysts containing 18% of WO3 were prepared from Zr(OH)4 pre-calcined at temperatures between 25 to 700°C, before W-introduction by impregnation. Thus, in accordance with that, the resulting parent Zr(OH)4 support possessed different degree of crystallinity and proportion of monoclinic to tetrahedral (M/T) phases which directly influenced the same M/T ratio in the final Pt/WO3-ZrO2 catalyst. The resulting catalysts varied in nuclearity and reducibility of formed WOx species, as revealed by UV-Vis spectroscopy and TPR-H2. Despite widely different surface area of the final catalysts, ranged from 140 to 47 m2/g, related to the proportion of M/T phases, ranged from 10%/90% to 90%/10%; the activity of the corresponding Pt/WO3-ZrO2 forisomerization of C7 was found to be directly proportional only to the total surface area of the resulting catalysts without specific effect of the crystal modifications of the support. In accordance with that a correlation was observed b
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Project
<a href="/en/project/FR-TI3%2F316" target="_blank" >FR-TI3/316: *Research and development of highly active catalyst based on ZrO2 and its application for izomerization of C5-C6 hydrocarbons</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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