MgO-modified mesoporous silicas impregnated by potassium carbonate for carbon dioxide adsorption

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F13%3A00386050" target="_blank" >RIV/61388955:_____/13:00386050 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.micromeso.2012.05.026" target="_blank" >http://dx.doi.org/10.1016/j.micromeso.2012.05.026</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.micromeso.2012.05.026" target="_blank" >10.1016/j.micromeso.2012.05.026</a>

Jazyk výsledku

angličtina

Název v původním jazyce

MgO-modified mesoporous silicas impregnated by potassium carbonate for carbon dioxide adsorption

Popis výsledku v původním jazyce

Mesoporous adsorbents for carbon dioxide capture were prepared by introducing of magnesium oxide and potassium carbonate into SBA-15, SBA-16 silicas and MCM-48-like-silica. In order to avoid destruction of silica supports, a novel procedure based on theprecipitation of magnesium acetate on the silica surface was developed. Subsequent in situ chemical conversion of magnesium acetate provided magnesium oxalate, while final magnesium oxide was formed by calcination. To introduce potassium carbonate, silica modified with MgO was impregnated with potassium oxalate followed by its conversion to carbonate. All prepared mesoporous adsorbents preserved characteristic features of mesoporous molecular sieve. The comparison of carbon dioxide isotherms obtained onprepared samples reveals that their adsorption properties are decisively influenced by the type of mesoporous structure. Modified sample of SBA-15 silica has shown the most steep adsorption isotherm and higher CO2 adsorption capacity tha

Název v anglickém jazyce

MgO-modified mesoporous silicas impregnated by potassium carbonate for carbon dioxide adsorption

Popis výsledku anglicky

Mesoporous adsorbents for carbon dioxide capture were prepared by introducing of magnesium oxide and potassium carbonate into SBA-15, SBA-16 silicas and MCM-48-like-silica. In order to avoid destruction of silica supports, a novel procedure based on theprecipitation of magnesium acetate on the silica surface was developed. Subsequent in situ chemical conversion of magnesium acetate provided magnesium oxalate, while final magnesium oxide was formed by calcination. To introduce potassium carbonate, silica modified with MgO was impregnated with potassium oxalate followed by its conversion to carbonate. All prepared mesoporous adsorbents preserved characteristic features of mesoporous molecular sieve. The comparison of carbon dioxide isotherms obtained onprepared samples reveals that their adsorption properties are decisively influenced by the type of mesoporous structure. Modified sample of SBA-15 silica has shown the most steep adsorption isotherm and higher CO2 adsorption capacity tha

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%2F08%2F0604" target="_blank" >GA203/08/0604: Pokročilé materiály na bázi molekulových sít pro adsorpci a uchovávání CO2 a H2</a><br>

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

Microporous and Mesoporous Materials

ISSN

1387-1811

e-ISSN

—

Svazek periodika

167

Číslo periodika v rámci svazku

FEB 2013

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

44-50

Kód UT WoS článku

000313840000008

EID výsledku v databázi Scopus

—