Exploration of the role of anions in the synthesis of Cr containing mesoporous materials at room temperature

L Mahony; C.M. Wu; H.S. Kibombo; E. Thiruppathi; Jonas Baltrusaitis; S Rasalingam; R.T. Koodali

doi:10.1016/j.micromeso.2012.12.001

Exploration of the role of anions in the synthesis of Cr containing mesoporous materials at room temperature

L Mahony, C.M. Wu, H.S. Kibombo, E. Thiruppathi, Jonas Baltrusaitis, S Rasalingam, R.T. Koodali

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

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Abstract

Chromium containing mesoporous silica materials were synthesized via a modified Stöber synthesis at room temperature. The chromium ion loading and the effect of counter ion in the synthesis were studied in detail. The mesoporous materials were extensively characterized by powder X-ray diffraction (XRD), N2 physisorption, Atomic Absorption Spectroscopy (AAS), Fourier-Transform-Infrared Spectroscopy (FT-IR), Diffuse Reflectance Spectroscopy (DRS UV–Vis), hydrogen Temperature-Programmed Reduction (H2-TPR), X-ray Photoelectron Spectroscopy (XPS), and Transmission Electron Microscopy (TEM) studies. A transition from Ia View the MathML source3¯d cubic phase to p6mm hexagonal or wormhole phases was noted as more amounts of chromium were incorporated into the siliceous materials. Chromium species present in the silica matrix include monochromate, polychromate, and chromium oxide (Cr2O3) clusters.

Original language	Undefined
Pages (from-to)	211-225
Journal	Microporous and mesoporous materials
Volume	170
DOIs	https://doi.org/10.1016/j.micromeso.2012.12.001
Publication status	Published - 2013

Keywords

IR-90163
METIS-301996

Access to Document

10.1016/j.micromeso.2012.12.001

Cite this

@article{1f1d6a457b6e4d40a113ede5fe64db67,

title = "Exploration of the role of anions in the synthesis of Cr containing mesoporous materials at room temperature",

abstract = "Chromium containing mesoporous silica materials were synthesized via a modified St{\"o}ber synthesis at room temperature. The chromium ion loading and the effect of counter ion in the synthesis were studied in detail. The mesoporous materials were extensively characterized by powder X-ray diffraction (XRD), N2 physisorption, Atomic Absorption Spectroscopy (AAS), Fourier-Transform-Infrared Spectroscopy (FT-IR), Diffuse Reflectance Spectroscopy (DRS UV–Vis), hydrogen Temperature-Programmed Reduction (H2-TPR), X-ray Photoelectron Spectroscopy (XPS), and Transmission Electron Microscopy (TEM) studies. A transition from Ia View the MathML source3¯d cubic phase to p6mm hexagonal or wormhole phases was noted as more amounts of chromium were incorporated into the siliceous materials. Chromium species present in the silica matrix include monochromate, polychromate, and chromium oxide (Cr2O3) clusters.",

keywords = "IR-90163, METIS-301996",

author = "L Mahony and C.M. Wu and H.S. Kibombo and E. Thiruppathi and Jonas Baltrusaitis and S Rasalingam and R.T. Koodali",

year = "2013",

doi = "10.1016/j.micromeso.2012.12.001",

language = "Undefined",

volume = "170",

pages = "211--225",

journal = "Microporous and mesoporous materials",

issn = "1387-1811",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Exploration of the role of anions in the synthesis of Cr containing mesoporous materials at room temperature

AU - Mahony, L

AU - Wu, C.M.

AU - Kibombo, H.S.

AU - Thiruppathi, E.

AU - Baltrusaitis, Jonas

AU - Rasalingam, S

AU - Koodali, R.T.

PY - 2013

Y1 - 2013

N2 - Chromium containing mesoporous silica materials were synthesized via a modified Stöber synthesis at room temperature. The chromium ion loading and the effect of counter ion in the synthesis were studied in detail. The mesoporous materials were extensively characterized by powder X-ray diffraction (XRD), N2 physisorption, Atomic Absorption Spectroscopy (AAS), Fourier-Transform-Infrared Spectroscopy (FT-IR), Diffuse Reflectance Spectroscopy (DRS UV–Vis), hydrogen Temperature-Programmed Reduction (H2-TPR), X-ray Photoelectron Spectroscopy (XPS), and Transmission Electron Microscopy (TEM) studies. A transition from Ia View the MathML source3¯d cubic phase to p6mm hexagonal or wormhole phases was noted as more amounts of chromium were incorporated into the siliceous materials. Chromium species present in the silica matrix include monochromate, polychromate, and chromium oxide (Cr2O3) clusters.

AB - Chromium containing mesoporous silica materials were synthesized via a modified Stöber synthesis at room temperature. The chromium ion loading and the effect of counter ion in the synthesis were studied in detail. The mesoporous materials were extensively characterized by powder X-ray diffraction (XRD), N2 physisorption, Atomic Absorption Spectroscopy (AAS), Fourier-Transform-Infrared Spectroscopy (FT-IR), Diffuse Reflectance Spectroscopy (DRS UV–Vis), hydrogen Temperature-Programmed Reduction (H2-TPR), X-ray Photoelectron Spectroscopy (XPS), and Transmission Electron Microscopy (TEM) studies. A transition from Ia View the MathML source3¯d cubic phase to p6mm hexagonal or wormhole phases was noted as more amounts of chromium were incorporated into the siliceous materials. Chromium species present in the silica matrix include monochromate, polychromate, and chromium oxide (Cr2O3) clusters.

KW - IR-90163

KW - METIS-301996

U2 - 10.1016/j.micromeso.2012.12.001

DO - 10.1016/j.micromeso.2012.12.001

M3 - Article

SN - 1387-1811

VL - 170

SP - 211

EP - 225

JO - Microporous and mesoporous materials

JF - Microporous and mesoporous materials

ER -