Novel hierarchically ordered porous vanado-silicate nanocomposites for the application in industrial catalysis

Matthew Howard; Jacob Whittle; Fan Zhang; Dongyuan Zhao; Tapas Sen

Novel hierarchically ordered porous vanado-silicate nanocomposites for the application in industrial catalysis

Matthew Howard, Jacob Whittle, Fan Zhang, Dongyuan Zhao, Tapas Sen

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

Abstract

Hierarchically ordered porous vanado-silicate (HOPVS) nanocomposties were prepared by multiple templating route such as polystyrene latex spheres, tri-block copolymer F ₁₂₇ (EO ₁₀₇PO ₇₀EO ₁₀₇) in the presence of a co-solvent (n-butanol). Novel materials exhibited high surface area consisting of macropores of diameter ∼330nm with interconnecting windows of ∼80nm The walls of the macropores were formed with disordered meso (∼7 nm diameter) and microporosity (< 2 nm diameter). Vanadyl (VO ⁴⁺) species were homogeneously dispersed in the uncalcined nanocomposites (8 line hyperfine patterns in ⁵¹V EPR signal) whereas calcined form exhibited no hyperfine pattern due to the aerial oxidation of paramagnetic (VO ⁴⁺) species to diamagnetic vanadium species. The calcined form exhibited good catalytic activity for the (i) oxidation of toluene to benzaldehyde, benzyl alcohol and cresols; (ii) oxidation of cis-cyclooctene to cyclooctene oxide; (iii) oxidation of phenanthrene to biphenyl 2,2′-dicarbaldehyde and 9,10 phenantrhaquinone in the presence of hydrogen peroxide.

Original language	English
Title of host publication	Technical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012
Publisher	NSTI
Pages	495-498
Number of pages	4
ISBN (Print)	9781466562745
Publication status	Published - 2012
Externally published	Yes
Event	Nanotechnology Conference and Trade Show (Nanotech) 2012 - Santa Clara, United States of America Duration: 18 Jun 2012 → 21 Jun 2012

Conference

Conference	Nanotechnology Conference and Trade Show (Nanotech) 2012
Abbreviated title	Nanotech 2012
Country/Territory	United States of America
City	Santa Clara
Period	18/06/12 → 21/06/12
Other	Nanotechnology 2012: Advanced Materials, CNTs, Particles, Films and Composites - 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012

Keywords

Catalysis
Macroporous
Nanoporous
Oxidation
Vanado-silicate

Cite this

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title = "Novel hierarchically ordered porous vanado-silicate nanocomposites for the application in industrial catalysis",

abstract = "Hierarchically ordered porous vanado-silicate (HOPVS) nanocomposties were prepared by multiple templating route such as polystyrene latex spheres, tri-block copolymer F 127 (EO 107PO 70EO 107) in the presence of a co-solvent (n-butanol). Novel materials exhibited high surface area consisting of macropores of diameter ∼330nm with interconnecting windows of ∼80nm The walls of the macropores were formed with disordered meso (∼7 nm diameter) and microporosity (< 2 nm diameter). Vanadyl (VO 4+) species were homogeneously dispersed in the uncalcined nanocomposites (8 line hyperfine patterns in 51V EPR signal) whereas calcined form exhibited no hyperfine pattern due to the aerial oxidation of paramagnetic (VO 4+) species to diamagnetic vanadium species. The calcined form exhibited good catalytic activity for the (i) oxidation of toluene to benzaldehyde, benzyl alcohol and cresols; (ii) oxidation of cis-cyclooctene to cyclooctene oxide; (iii) oxidation of phenanthrene to biphenyl 2,2′-dicarbaldehyde and 9,10 phenantrhaquinone in the presence of hydrogen peroxide.",

keywords = "Catalysis, Macroporous, Nanoporous, Oxidation, Vanado-silicate",

author = "Matthew Howard and Jacob Whittle and Fan Zhang and Dongyuan Zhao and Tapas Sen",

year = "2012",

language = "English",

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pages = "495--498",

booktitle = "Technical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012",

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Howard, M, Whittle, J, Zhang, F, Zhao, D & Sen, T 2012, Novel hierarchically ordered porous vanado-silicate nanocomposites for the application in industrial catalysis. in Technical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012. NSTI, pp. 495-498, Nanotechnology Conference and Trade Show (Nanotech) 2012, Santa Clara, California, United States of America, 18/06/12.

Novel hierarchically ordered porous vanado-silicate nanocomposites for the application in industrial catalysis. / Howard, Matthew; Whittle, Jacob; Zhang, Fan et al.
Technical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012. NSTI, 2012. p. 495-498.

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

TY - GEN

T1 - Novel hierarchically ordered porous vanado-silicate nanocomposites for the application in industrial catalysis

AU - Howard, Matthew

AU - Whittle, Jacob

AU - Zhang, Fan

AU - Zhao, Dongyuan

AU - Sen, Tapas

PY - 2012

Y1 - 2012

N2 - Hierarchically ordered porous vanado-silicate (HOPVS) nanocomposties were prepared by multiple templating route such as polystyrene latex spheres, tri-block copolymer F 127 (EO 107PO 70EO 107) in the presence of a co-solvent (n-butanol). Novel materials exhibited high surface area consisting of macropores of diameter ∼330nm with interconnecting windows of ∼80nm The walls of the macropores were formed with disordered meso (∼7 nm diameter) and microporosity (< 2 nm diameter). Vanadyl (VO 4+) species were homogeneously dispersed in the uncalcined nanocomposites (8 line hyperfine patterns in 51V EPR signal) whereas calcined form exhibited no hyperfine pattern due to the aerial oxidation of paramagnetic (VO 4+) species to diamagnetic vanadium species. The calcined form exhibited good catalytic activity for the (i) oxidation of toluene to benzaldehyde, benzyl alcohol and cresols; (ii) oxidation of cis-cyclooctene to cyclooctene oxide; (iii) oxidation of phenanthrene to biphenyl 2,2′-dicarbaldehyde and 9,10 phenantrhaquinone in the presence of hydrogen peroxide.

AB - Hierarchically ordered porous vanado-silicate (HOPVS) nanocomposties were prepared by multiple templating route such as polystyrene latex spheres, tri-block copolymer F 127 (EO 107PO 70EO 107) in the presence of a co-solvent (n-butanol). Novel materials exhibited high surface area consisting of macropores of diameter ∼330nm with interconnecting windows of ∼80nm The walls of the macropores were formed with disordered meso (∼7 nm diameter) and microporosity (< 2 nm diameter). Vanadyl (VO 4+) species were homogeneously dispersed in the uncalcined nanocomposites (8 line hyperfine patterns in 51V EPR signal) whereas calcined form exhibited no hyperfine pattern due to the aerial oxidation of paramagnetic (VO 4+) species to diamagnetic vanadium species. The calcined form exhibited good catalytic activity for the (i) oxidation of toluene to benzaldehyde, benzyl alcohol and cresols; (ii) oxidation of cis-cyclooctene to cyclooctene oxide; (iii) oxidation of phenanthrene to biphenyl 2,2′-dicarbaldehyde and 9,10 phenantrhaquinone in the presence of hydrogen peroxide.

KW - Catalysis

KW - Macroporous

KW - Nanoporous

KW - Oxidation

KW - Vanado-silicate

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M3 - Conference Paper

AN - SCOPUS:84865016953

SN - 9781466562745

SP - 495

EP - 498

BT - Technical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012

PB - NSTI

T2 - Nanotechnology Conference and Trade Show (Nanotech) 2012

Y2 - 18 June 2012 through 21 June 2012

ER -

Novel hierarchically ordered porous vanado-silicate nanocomposites for the application in industrial catalysis

Abstract

Conference

Keywords

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