Non-aqueous template-assisted synthesis of mesoporous
nanocrystalline silicon orthophosphate

J 2015

Non-aqueous template-assisted synthesis of mesoporous nanocrystalline silicon orthophosphate

STÝSKALÍK, Aleš; David ŠKODA; Zdeněk MORAVEC; Pavla ROUPCOVÁ; Craig E. BARNES et al.

Základní údaje

Originální název

Non-aqueous template-assisted synthesis of mesoporous nanocrystalline silicon orthophosphate

Autoři

STÝSKALÍK, Aleš; David ŠKODA; Zdeněk MORAVEC; Pavla ROUPCOVÁ; Craig E. BARNES a Jiří PINKAS

Vydání

RSC Advances, Cambridge, Royal Society of Chemistry, 2015, 2046-2069

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10402 Inorganic and nuclear chemistry

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 3.289

Kód RIV

RIV/00216224:14740/15:00084631

Organizační jednotka

Středoevropský technologický institut

DOI

https://doi.org/10.1039/c5ra10982e

UT WoS

000360860500038

EID Scopus

2-s2.0-84940990342

Klíčová slova anglicky

PHOSPHORIC-ACID CATALYST; ORGANIC-INORGANIC HYBRID; SOL-GEL SYNTHESIS; PHOSPHOSILICATE GELS; AMBIENT CONDITIONS; CRYSTAL-STRUCTURE; MOLECULAR-SIEVES; SURFACE-AREA; MAS NMR; GLASSES

Štítky

OA, podil, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 5. 3. 2018 21:16, prof. RNDr. Jiří Pinkas, Ph.D.

Anotace

V originále

The first synthesis of mesoporous nanocrystalline silicon orthophosphate Si5P6O25 is presented. The synthetic procedure is based on the non-hydrolytic sol-gel reaction in the presence of Pluronic P123 template and subsequent calcination in air. The condensation of silicon acetate, Si(OAc)(4), and tris(trimethylsilyl) phosphate, OP(OSiMe3)(3) (TTP), in non-aqueous solvents driven by elimination of trimethylsilyl acetate provides a homogeneous network with a high content of Si-O-P bonds and SiO6 moieties. After burning out the template, mesoporous silicon orthophosphate was obtained with surface areas up to 128 m(2) g(-1) and pore sizes around 20 nm. The nanocrystalline Si5P6O25 phase forms relatively easily (500 degrees C, 4 h) in comparison with other synthetic routes. All samples were characterized by SEM, TEM, elemental analysis, TGA, nitrogen adsorption, SAXS, H-1, C-13, Si-29, and P-31 solid-state NMR spectroscopy, and powder XRD. These xerogels showed superior catalytic activity and selectivity in methylstyrene dimerization.

Návaznosti

ED1.1.00/02.0068, projekt VaV

Název: CEITEC - central european institute of technology

LH11028, projekt VaV

Název: Nehydrolytické sol-gelové reakce pro přípravu křemičitanů a fosforečnanů s řízenou porozitou a funkčními skupinami na povrchu (Akronym: NHSGKNOX)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Nehydrolytické sol-gelové reakce pro přípravu křemičitanů a fosforečnanů s řízenou porozitou a funkčními skupinami na povrchu

Citovat

STÝSKALÍK, Aleš; David ŠKODA; Zdeněk MORAVEC; Pavla ROUPCOVÁ; Craig E. BARNES a Jiří PINKAS. Non-aqueous template-assisted synthesis of mesoporous nanocrystalline silicon orthophosphate. RSC Advances. Cambridge: Royal Society of Chemistry, 2015, roč. 5, č. 90, s. 73670-73676. ISSN 2046-2069. Dostupné z: https://doi.org/10.1039/c5ra10982e.

@article{1316862,
   author = {Stýskalík, Aleš and Škoda, David and Moravec, Zdeněk and Roupcová, Pavla and Barnes, Craig E. and Pinkas, Jiří},
   article_location = {Cambridge},
   article_number = {90},
   doi = {https://doi.org/10.1039/c5ra10982e},
   keywords = {PHOSPHORIC-ACID CATALYST; ORGANIC-INORGANIC HYBRID; SOL-GEL SYNTHESIS; PHOSPHOSILICATE GELS; AMBIENT CONDITIONS; CRYSTAL-STRUCTURE; MOLECULAR-SIEVES; SURFACE-AREA; MAS NMR; GLASSES},
   language = {eng},
   issn = {2046-2069},
   journal = {RSC Advances},
   title = {Non-aqueous template-assisted synthesis of mesoporous nanocrystalline silicon orthophosphate},
   volume = {5},
   year = {2015}
}

TY  - JOUR
ID  - 1316862
AU  - Stýskalík, Aleš - Škoda, David - Moravec, Zdeněk - Roupcová, Pavla - Barnes, Craig E. - Pinkas, Jiří
PY  - 2015
TI  - Non-aqueous template-assisted synthesis of mesoporous nanocrystalline silicon orthophosphate
JF  - RSC Advances
VL  - 5
IS  - 90
SP  - 73670-73676
EP  - 73670-73676
PB  - Royal Society of Chemistry
SN  - 20462069
KW  - PHOSPHORIC-ACID CATALYST
KW  - ORGANIC-INORGANIC HYBRID
KW  - SOL-GEL SYNTHESIS
KW  - PHOSPHOSILICATE GELS
KW  - AMBIENT CONDITIONS
KW  - CRYSTAL-STRUCTURE
KW  - MOLECULAR-SIEVES
KW  - SURFACE-AREA
KW  - MAS NMR
KW  - GLASSES
N2  - The first synthesis of mesoporous nanocrystalline silicon orthophosphate Si5P6O25 is presented. The synthetic procedure is based on the non-hydrolytic sol-gel reaction in the presence of Pluronic P123 template and subsequent calcination in air. The condensation of silicon acetate, Si(OAc)(4), and tris(trimethylsilyl) phosphate, OP(OSiMe3)(3) (TTP), in non-aqueous solvents driven by elimination of trimethylsilyl acetate provides a homogeneous network with a high content of Si-O-P bonds and SiO6 moieties. After burning out the template, mesoporous silicon orthophosphate was obtained with surface areas up to 128 m(2) g(-1) and pore sizes around 20 nm. The nanocrystalline Si5P6O25 phase forms relatively easily (500 degrees C, 4 h) in comparison with other synthetic routes. All samples were characterized by SEM, TEM, elemental analysis, TGA, nitrogen adsorption, SAXS, H-1, C-13, Si-29, and P-31 solid-state NMR spectroscopy, and powder XRD. These xerogels showed superior catalytic activity and selectivity in methylstyrene dimerization.
ER  -

STÝSKALÍK, Aleš; David ŠKODA; Zdeněk MORAVEC; Pavla ROUPCOVÁ; Craig E. BARNES a Jiří PINKAS. Non-aqueous template-assisted synthesis of mesoporous nanocrystalline silicon orthophosphate. \textit{RSC Advances}. Cambridge: Royal Society of Chemistry, 2015, roč.~5, č.~90, s.~73670-73676. ISSN~2046-2069. Dostupné z: https://doi.org/10.1039/c5ra10982e.

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