Synthesis and characterization of zirconium containing mesoporous silicas I. Hydrothermal synthesis of Zr-MCM-41-type materials

Xu Xu Wang; Frédéric Lefebvre; Joël Patarin; Jean Marie Basset

doi:10.1016/S1387-1811(00)00329-2

Synthesis and characterization of zirconium containing mesoporous silicas I. Hydrothermal synthesis of Zr-MCM-41-type materials

Xu Xu Wang, Frédéric Lefebvre^*, Joël Patarin, Jean Marie Basset

^*Corresponding author for this work

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

95 Scopus citations

Abstract

Zirconium containing MCM-41-type has been synthesized by a near neutral route. Various solids, with Si/Zr molar ratios ranging from 20 to ∞, were prepared. All these solids have high surface area and good crystallinity. Addition of zirconium results in a linear increase of both the Lewis and Brönsted acidities. At least one-third of zirconium is at the surface or near the surface, probably in the form of [(≡Si-O)₃Zr-O^-] species. As a consequence, introduction of zirconium on the surface results in the appearance of a negative charge, compensated by sodium ions which can be exchanged.

Original language	English (US)
Pages (from-to)	269-276
Number of pages	8
Journal	Microporous and Mesoporous Materials
Volume	42
Issue number	2-3
DOIs	https://doi.org/10.1016/S1387-1811(00)00329-2
State	Published - Feb 2001
Externally published	Yes

Keywords

Acidity
Mesoporous silica
Zirconium
Zirconyl

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics
Mechanics of Materials

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10.1016/S1387-1811(00)00329-2

Cite this

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title = "Synthesis and characterization of zirconium containing mesoporous silicas I. Hydrothermal synthesis of Zr-MCM-41-type materials",

abstract = "Zirconium containing MCM-41-type has been synthesized by a near neutral route. Various solids, with Si/Zr molar ratios ranging from 20 to ∞, were prepared. All these solids have high surface area and good crystallinity. Addition of zirconium results in a linear increase of both the Lewis and Br{\"o}nsted acidities. At least one-third of zirconium is at the surface or near the surface, probably in the form of [(≡Si-O)3Zr-O-] species. As a consequence, introduction of zirconium on the surface results in the appearance of a negative charge, compensated by sodium ions which can be exchanged.",

keywords = "Acidity, Mesoporous silica, Zirconium, Zirconyl",

author = "Wang, {Xu Xu} and Fr{\'e}d{\'e}ric Lefebvre and Jo{\"e}l Patarin and Basset, {Jean Marie}",

year = "2001",

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doi = "10.1016/S1387-1811(00)00329-2",

language = "English (US)",

volume = "42",

pages = "269--276",

journal = "Microporous and Mesoporous Materials",

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T1 - Synthesis and characterization of zirconium containing mesoporous silicas I. Hydrothermal synthesis of Zr-MCM-41-type materials

AU - Wang, Xu Xu

AU - Lefebvre, Frédéric

AU - Patarin, Joël

AU - Basset, Jean Marie

PY - 2001/2

Y1 - 2001/2

N2 - Zirconium containing MCM-41-type has been synthesized by a near neutral route. Various solids, with Si/Zr molar ratios ranging from 20 to ∞, were prepared. All these solids have high surface area and good crystallinity. Addition of zirconium results in a linear increase of both the Lewis and Brönsted acidities. At least one-third of zirconium is at the surface or near the surface, probably in the form of [(≡Si-O)3Zr-O-] species. As a consequence, introduction of zirconium on the surface results in the appearance of a negative charge, compensated by sodium ions which can be exchanged.

AB - Zirconium containing MCM-41-type has been synthesized by a near neutral route. Various solids, with Si/Zr molar ratios ranging from 20 to ∞, were prepared. All these solids have high surface area and good crystallinity. Addition of zirconium results in a linear increase of both the Lewis and Brönsted acidities. At least one-third of zirconium is at the surface or near the surface, probably in the form of [(≡Si-O)3Zr-O-] species. As a consequence, introduction of zirconium on the surface results in the appearance of a negative charge, compensated by sodium ions which can be exchanged.

KW - Acidity

KW - Mesoporous silica

KW - Zirconium

KW - Zirconyl

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DO - 10.1016/S1387-1811(00)00329-2

M3 - Article

AN - SCOPUS:0035249880

SN - 1387-1811

VL - 42

SP - 269

EP - 276

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

IS - 2-3

ER -

Synthesis and characterization of zirconium containing mesoporous silicas I. Hydrothermal synthesis of Zr-MCM-41-type materials

Abstract

Keywords

ASJC Scopus subject areas

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