Preparation of Mesoporous Metallophopshate Materials

D 2003

Preparation of Mesoporous Metallophopshate Materials

CHROMÁ, Markéta, Jiří PINKAS a Herbert W. ROESKY

Základní údaje

Originální název

Preparation of Mesoporous Metallophopshate Materials

Autoři

CHROMÁ, Markéta (203 Česká republika), Jiří PINKAS (203 Česká republika, garant) a Herbert W. ROESKY (276 Německo)

Vydání

Dresden, Euregionale 2003 Book of Abstracts, s. 77-77, MS31, 2003

Nakladatel

JCF

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10402 Inorganic and nuclear chemistry

Stát vydavatele

Německo

Utajení

není předmětem státního či obchodního tajemství

Kód RIV

RIV/00216224:14310/03:00007975

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Mesoporous; Metallophosphate; Synthesis

Štítky

mesoporous, Metallophosphate, synthesis

Změněno: 31. 5. 2009 22:21, prof. RNDr. Jiří Pinkas, Ph.D.

Anotace

V originále

Mesoporous materials are high surface area solids characterized by monosized cylindrical pores, ranging from 2 to 50 nm in pore diameter, with long-range order in the pore packing. Inorganic pore walls are amorphous. For the preparation of mesoporous materials we have used a new synthetic strategy - supramolecular templating.1 This new approach is based on the presence of surfactants in a solution. Surfactants form in the solution central structures - micelles - about which then originate inorganic mesostructures from solubilized inorganic precursors. The surfactant removal from pores of mesostructure materials - usually by calcination, alternatively by solvent extraction or ozone treatment - lead then to mesoporous materials. Homogenous precipitation method2 with urea served us to prepare aluminium, zirconium, chromium, copper, cobalt and nickel mesostructured materials using a geminal anionic surfactant C12H25OPO(OH)(OCH2CH2)3OPO(OH)OC12H253 as structure-directing agent. The last, but the most important step in the preparation of mesoporous materials is the surfactant removal. However, we have not yet been able to find applicable method for surfactant removal from mesostructured materials without the collapse of the inorganic mesostructures: calcination, solvent extraction, ozone treatment and oxygen plasma treatment did not work for us, therefore we proposed chemical route for surfactant removal - by trimethylbromosilane. However, this method leads also at least to the partial mesostructure collapse.

Návaznosti

GA203/01/1533, projekt VaV

Název: Nové bezvodé metody přípravy fosfátových, silikátových, hybridních a oxidických materiálů

Investor: Grantová agentura ČR, Nové bezvodé metody přípravy fosfátových, silikátových, hybridních a oxidických materiálů

Citovat

CHROMÁ, Markéta, Jiří PINKAS a Herbert W. ROESKY. Preparation of Mesoporous Metallophopshate Materials. In Euregionale 2003 Book of Abstracts. Dresden: JCF, 2003, s. 77. MS31.

@inproceedings{485321,
   author = {Chromá, Markéta and Pinkas, Jiří and Roesky, Herbert W.},
   address = {Dresden},
   booktitle = {Euregionale 2003 Book of Abstracts},
   keywords = {Mesoporous; Metallophosphate; Synthesis},
   language = {eng},
   location = {Dresden},
   pages = {77-77},
   publisher = {JCF},
   title = {Preparation of Mesoporous Metallophopshate Materials},
   year = {2003}
}

TY  - JOUR
ID  - 485321
AU  - Chromá, Markéta - Pinkas, Jiří - Roesky, Herbert W.
PY  - 2003
TI  - Preparation of Mesoporous Metallophopshate Materials
VL  - MS31
PB  - JCF
CY  - Dresden
KW  - Mesoporous
KW  - Metallophosphate
KW  - Synthesis
N2  - Mesoporous materials are high surface area solids characterized by monosized cylindrical pores, ranging from 2 to 50 nm in pore diameter, with long-range order in the pore packing. Inorganic pore walls are amorphous. For the preparation of mesoporous materials we have used a new synthetic strategy - supramolecular templating.1 This new approach is based on the presence of surfactants in a solution. Surfactants form in the solution central structures - micelles - about which then originate inorganic mesostructures from solubilized inorganic precursors. The surfactant removal from pores of mesostructure materials - usually by calcination, alternatively by solvent extraction or ozone treatment - lead then to mesoporous materials. Homogenous precipitation method2 with urea served us to prepare aluminium, zirconium, chromium, copper, cobalt and nickel mesostructured materials using a geminal anionic surfactant C12H25OPO(OH)(OCH2CH2)3OPO(OH)OC12H253 as structure-directing agent. The last, but the most important step in the preparation of mesoporous materials is the surfactant removal. However, we have not yet been able to find applicable method for surfactant removal from mesostructured materials without the collapse of the inorganic mesostructures: calcination, solvent extraction, ozone treatment and oxygen plasma treatment did not work for us, therefore we proposed chemical route for surfactant removal - by trimethylbromosilane. However, this method leads also at least to the partial mesostructure collapse.
ER  -

CHROMÁ, Markéta, Jiří PINKAS a Herbert W. ROESKY. Preparation of Mesoporous Metallophopshate Materials. In \textit{Euregionale 2003 Book of Abstracts}. Dresden: JCF, 2003, s.~77. MS31.

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