Preparation of Mesoporous Metallophopshate Materials

D 2003

Preparation of Mesoporous Metallophopshate Materials

CHROMÁ, Markéta, Jiří PINKAS and Herbert W. ROESKY

Basic information

Original name

Preparation of Mesoporous Metallophopshate Materials

Authors

CHROMÁ, Markéta (203 Czech Republic), Jiří PINKAS (203 Czech Republic, guarantor) and Herbert W. ROESKY (276 Germany)

Edition

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

Publisher

JCF

Other information

Language

English

Type of outcome

Stať ve sborníku

Field of Study

10402 Inorganic and nuclear chemistry

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/03:00007975

Organization unit

Faculty of Science

Keywords in English

Mesoporous; Metallophosphate; Synthesis

Abstract

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.

Links

GA203/01/1533, research and development project

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

Investor: Czech Science Foundation, New Nonaqueous Routes to Phosphate, Silicate, Hybrid, and Oxide Materials

Citovat

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

Detailed Information on Publication Record