Polykrystalické vrstvy a krystaly-dvojčata silikalitu-1: morfologie, hranice zrn

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F07%3A00081194" target="_blank" >RIV/61388955:_____/07:00081194 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Silicalite-1 polycrystalline layers and crystal twins: Morphology and grain boundaries

Popis výsledku v původním jazyce

Silicalite-1 layers as well as individual crystal twins were synthesized from clear solutions using TPABr as template. Their morphology was characterized by scanning electron microscope (SEM). Large crystal twins coloured by iodine were also observed bylight microscope. The compactness of a thin layer consisting of spherical crystals (twins) appeared much higher than that of prolonged ones. HF etching of as-synthesized polycrystalline silicalite-1 layers led to the formation of sharp slits along grainboundaries. So the grain boundaries became observable. Etching of calcined layers produced a sort of a negative image represented by preserved thin shells around dissolved crystals. Those shells - films of less organized silica remaining between neighboring crystals - were resistant against HF acid due to the presence of organic species formed during layer calcination. For large isolated silicalite-1 twins the etching patterns differed from those in layers.

Název v anglickém jazyce

Silicalite-1 polycrystalline layers and crystal twins: Morphology and grain boundaries

Popis výsledku anglicky

Silicalite-1 layers as well as individual crystal twins were synthesized from clear solutions using TPABr as template. Their morphology was characterized by scanning electron microscope (SEM). Large crystal twins coloured by iodine were also observed bylight microscope. The compactness of a thin layer consisting of spherical crystals (twins) appeared much higher than that of prolonged ones. HF etching of as-synthesized polycrystalline silicalite-1 layers led to the formation of sharp slits along grainboundaries. So the grain boundaries became observable. Etching of calcined layers produced a sort of a negative image represented by preserved thin shells around dissolved crystals. Those shells - films of less organized silica remaining between neighboring crystals - were resistant against HF acid due to the presence of organic species formed during layer calcination. For large isolated silicalite-1 twins the etching patterns differed from those in layers.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

—

Projekt

<a href="/cs/project/GA203%2F05%2F0846" target="_blank" >GA203/05/0846: Růst nanofiltračních vrstev z koloidních roztoků. Vliv elektrochemických vlastností koloidních roztoků na kinetiku růstu a morfologii vrstev</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Materials Chemistry and Physics

ISSN

0254-0584

e-ISSN

—

Svazek periodika

102

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CN - Čínská lidová republika

Počet stran výsledku

8

Strana od-do

67-74

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—