Chemical control of the characteristics of Mo-doped carbon xerogels by surfactant-mediated synthesis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F13%3A00386057" target="_blank" >RIV/61388955:_____/13:00386057 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.carbon.2012.08.046" target="_blank" >http://dx.doi.org/10.1016/j.carbon.2012.08.046</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.carbon.2012.08.046" target="_blank" >10.1016/j.carbon.2012.08.046</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Chemical control of the characteristics of Mo-doped carbon xerogels by surfactant-mediated synthesis

Popis výsledku v původním jazyce

Carbon xerogels doped with Mo were prepared by a sol?gel modified method for the resorcinol (R) ? formaldehyde (F) polymerization (RF-gels). The use of surfactants (S) yields composites (RFS-gels), the S molecules are incorporated to the gel structure generating different metal anchoring sites. The interaction of molybdate ions View the MathML source with RF and RFS-gels was analysed. The View the MathML source adsorption is favoured by the attractive interactions with the RFS-gel containing a cationicsurfactant, and by the presence of oxygenated chemical groups introduced by the non-ionic surfactant. The smallest Mo-loading was obtained in RFS-gels containing anionic surfactant as a consequence of repulsive interactions. The adsorbed Mo-species influence on the curing of the polymeric gels, inducing a larger shrinkage and a lower microporosity of the carbon xerogels. The dispersion and chemical nature of Mo particles depend also on the Mo-gel interactions. Stronger attractive interac

Název v anglickém jazyce

Chemical control of the characteristics of Mo-doped carbon xerogels by surfactant-mediated synthesis

Popis výsledku anglicky

Carbon xerogels doped with Mo were prepared by a sol?gel modified method for the resorcinol (R) ? formaldehyde (F) polymerization (RF-gels). The use of surfactants (S) yields composites (RFS-gels), the S molecules are incorporated to the gel structure generating different metal anchoring sites. The interaction of molybdate ions View the MathML source with RF and RFS-gels was analysed. The View the MathML source adsorption is favoured by the attractive interactions with the RFS-gel containing a cationicsurfactant, and by the presence of oxygenated chemical groups introduced by the non-ionic surfactant. The smallest Mo-loading was obtained in RFS-gels containing anionic surfactant as a consequence of repulsive interactions. The adsorbed Mo-species influence on the curing of the polymeric gels, inducing a larger shrinkage and a lower microporosity of the carbon xerogels. The dispersion and chemical nature of Mo particles depend also on the Mo-gel interactions. Stronger attractive interac

Druh

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

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Carbon

ISSN

0008-6223

e-ISSN

—

Svazek periodika

51

Číslo periodika v rámci svazku

JAN 2013

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

213-223

Kód UT WoS článku

000311005300024

EID výsledku v databázi Scopus

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