Immobilization of a heteropolyacid catalyst on the aminopropyl-functionalized mesostructured cellular foam (MCF) silica

Heesoo Kim; Ji Chul Jung; Sung Ho Yeom; Kwan Young Lee; Jongheop Yi; In Kyu Song

doi:10.1016/j.materresbull.2007.01.010

Immobilization of a heteropolyacid catalyst on the aminopropyl-functionalized mesostructured cellular foam (MCF) silica

Heesoo Kim, Ji Chul Jung, Sung Ho Yeom, Kwan Young Lee, Jongheop Yi, In Kyu Song

Department of Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

48 Citations (Scopus)

Abstract

Mesostructured cellular foam (MCF) silica with high surface area (>600 m²/g) and large pore volume (≈1.16 cm³/g) was synthesized via a surfactant templating method. The MCF silica was then modified by grafting 3-aminopropyl-triethoxysilane (APTES) to create a positive charge on the surface, and thus, to provide sites for the immobilization of H₃PMo₁₂O₄₀. By taking advantage of the overall negative charge of [PMo₁₂O₄₀]^3-, the H₃PMo₁₂O₄₀ catalyst was chemically immobilized on the aminopropyl group of the surface modified MCF silica as a charge matching component. The mesopore structure of MCF silica was maintained even after the surface modification step and the subsequent immobilization step of H₃PMo₁₂O₄₀. The H₃PMo₁₂O₄₀ species were finely and molecularly dispersed on the surface modified MCF silica via chemical immobilization.

Original language	English
Pages (from-to)	2132-2142
Number of pages	11
Journal	Materials Research Bulletin
Volume	42
Issue number	12
DOIs	https://doi.org/10.1016/j.materresbull.2007.01.010
Publication status	Published - 2007 Dec 4

Bibliographical note

Funding Information:
The authors wish to acknowledge support from the Korea Science and Engineering Foundation (KOSEF R01-2004-000-10502-0).

Keywords

A. Inorganic compounds
A. Surfaces
D. Surface properties

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.materresbull.2007.01.010

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title = "Immobilization of a heteropolyacid catalyst on the aminopropyl-functionalized mesostructured cellular foam (MCF) silica",

abstract = "Mesostructured cellular foam (MCF) silica with high surface area (>600 m2/g) and large pore volume (≈1.16 cm3/g) was synthesized via a surfactant templating method. The MCF silica was then modified by grafting 3-aminopropyl-triethoxysilane (APTES) to create a positive charge on the surface, and thus, to provide sites for the immobilization of H3PMo12O40. By taking advantage of the overall negative charge of [PMo12O40]3-, the H3PMo12O40 catalyst was chemically immobilized on the aminopropyl group of the surface modified MCF silica as a charge matching component. The mesopore structure of MCF silica was maintained even after the surface modification step and the subsequent immobilization step of H3PMo12O40. The H3PMo12O40 species were finely and molecularly dispersed on the surface modified MCF silica via chemical immobilization.",

keywords = "A. Inorganic compounds, A. Surfaces, D. Surface properties",

author = "Heesoo Kim and Jung, {Ji Chul} and Yeom, {Sung Ho} and Lee, {Kwan Young} and Jongheop Yi and Song, {In Kyu}",

note = "Funding Information: The authors wish to acknowledge support from the Korea Science and Engineering Foundation (KOSEF R01-2004-000-10502-0).",

year = "2007",

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doi = "10.1016/j.materresbull.2007.01.010",

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AU - Kim, Heesoo

AU - Jung, Ji Chul

AU - Yeom, Sung Ho

AU - Lee, Kwan Young

AU - Yi, Jongheop

AU - Song, In Kyu

N1 - Funding Information: The authors wish to acknowledge support from the Korea Science and Engineering Foundation (KOSEF R01-2004-000-10502-0).

PY - 2007/12/4

Y1 - 2007/12/4

N2 - Mesostructured cellular foam (MCF) silica with high surface area (>600 m2/g) and large pore volume (≈1.16 cm3/g) was synthesized via a surfactant templating method. The MCF silica was then modified by grafting 3-aminopropyl-triethoxysilane (APTES) to create a positive charge on the surface, and thus, to provide sites for the immobilization of H3PMo12O40. By taking advantage of the overall negative charge of [PMo12O40]3-, the H3PMo12O40 catalyst was chemically immobilized on the aminopropyl group of the surface modified MCF silica as a charge matching component. The mesopore structure of MCF silica was maintained even after the surface modification step and the subsequent immobilization step of H3PMo12O40. The H3PMo12O40 species were finely and molecularly dispersed on the surface modified MCF silica via chemical immobilization.

AB - Mesostructured cellular foam (MCF) silica with high surface area (>600 m2/g) and large pore volume (≈1.16 cm3/g) was synthesized via a surfactant templating method. The MCF silica was then modified by grafting 3-aminopropyl-triethoxysilane (APTES) to create a positive charge on the surface, and thus, to provide sites for the immobilization of H3PMo12O40. By taking advantage of the overall negative charge of [PMo12O40]3-, the H3PMo12O40 catalyst was chemically immobilized on the aminopropyl group of the surface modified MCF silica as a charge matching component. The mesopore structure of MCF silica was maintained even after the surface modification step and the subsequent immobilization step of H3PMo12O40. The H3PMo12O40 species were finely and molecularly dispersed on the surface modified MCF silica via chemical immobilization.

KW - A. Inorganic compounds

KW - A. Surfaces

KW - D. Surface properties

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M3 - Article

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SN - 0025-5408

VL - 42

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JO - Materials Research Bulletin

JF - Materials Research Bulletin

IS - 12

ER -

Immobilization of a heteropolyacid catalyst on the aminopropyl-functionalized mesostructured cellular foam (MCF) silica

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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