Consecutive interlayer disassembly-reassembly during alumination of UOV zeolites: insight into the mechanism
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F17%3A00487473" target="_blank" >RIV/61388955:_____/17:00487473 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/17:10368189
Result on the web
<a href="http://dx.doi.org/10.1039/c7ta05935c" target="_blank" >http://dx.doi.org/10.1039/c7ta05935c</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c7ta05935c" target="_blank" >10.1039/c7ta05935c</a>
Alternative languages
Result language
angličtina
Original language name
Consecutive interlayer disassembly-reassembly during alumination of UOV zeolites: insight into the mechanism
Original language description
Investigation of the kinetics of UOV germanosilicate alumination by X-ray diffraction, Al-27 and Si-29 MAS NMR, ICP/OES and FTIR spectroscopy showed the multi-stage mechanism of the process. The first step consists of degermanation and partial disassembly followed by Al incorporation into the UOV germanosilicate framework in the second step. The Al atoms stabilize the UOV framework by healing the defects formed after rapid hydrolysis of Ge-O-Si bonds, which was evidenced by comparison with the reference treatment of initial UOV samples with HNO3 (pH = 2). Post-synthesis alumination of UOV leads to the generation of strong Bronsted and Lewis acid sites. Their ratio in aluminated UOV derivatives can be adjusted by the variation of treatment conditions. The intrinsic properties of parent UOV germanosilicates determine the textural properties of aluminated derivatives.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of materials chemistry A
ISSN
2050-7488
e-ISSN
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Volume of the periodical
5
Issue of the periodical within the volume
43
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
22576-22587
UT code for WoS article
000414605900018
EID of the result in the Scopus database
2-s2.0-85033225085