Modification of textural and acidic properties of -SVR zeolite by desilication

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F14%3A00427872" target="_blank" >RIV/61388955:_____/14:00427872 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.cattod.2013.11.063" target="_blank" >http://dx.doi.org/10.1016/j.cattod.2013.11.063</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cattod.2013.11.063" target="_blank" >10.1016/j.cattod.2013.11.063</a>

Result language
angličtina
Original language name
Modification of textural and acidic properties of -SVR zeolite by desilication
Original language description
Desilication conditions (concentration of NaOH and TPAOH solution, duration of the treatment) of SVR zeolite were varied and related to the textural and acidic properties of the obtained materials. The treatment of -SVR zeolite with NaOH solution led tothe formation of mesopores and also the increasing of the concentration of surface acid sites, accessible for bulky molecules (e.g. 2,6-ditertbutyl-pyridine). The volume of mesopores as well as the concentration of accessible acid centres in desilicatedmaterials depends mainly on the concentration of the alkaline solution. The increase in the pH of the treatment resulted in moderate decrease of both micropore volume and Bronsted acid sites concentration, while the volume of mesopores increased significantly. Independently of the duration and pH of the treatment with NaOH solution, all desilicated -SVR zeolites are characterized by broad pore-size distribution in the range of 5-20 nm with the maximum around 14 nm. At fixed pH of the tre
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/GP13-17593P" target="_blank" >GP13-17593P: Preparation of Novel Structure-Directing Agents for the Synthesis of Zeolites</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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