Mechanism of pore formation and structural characterization for mesoporous Mg-Al composite oxides

Yun Zhao; Qingze Jiao; D. G. Evans; Xue Duan

doi:10.1360/02yb9006

Mechanism of pore formation and structural characterization for mesoporous Mg-Al composite oxides

Yun Zhao, Qingze Jiao, D. G. Evans, Xue Duan^*

^*Corresponding author for this work

Beijing University of Chemical Technology

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

11 Citations (Scopus)

Abstract

Mg-Al layered double hydroxides (LDH) with different particle sizes were prepared using different aging times at high supersaturation by a new method developed in our laboratory. The key features of this method are a very rapid mixing and nucleation process followed by a separate aging process. By calcination of LDH at 500°C, mesoporous Mg-Al composite oxides with an extremely narrow pore size distribution were produced. The crystal structure of the Mg-Al composite oxides was a multiphasic one consisting of MgO-like crystals and a layered materials.

Original language	English
Pages (from-to)	37-45
Number of pages	9
Journal	Science in China, Series B: Chemistry
Volume	45
Issue number	1
DOIs	https://doi.org/10.1360/02yb9006
Publication status	Published - Feb 2002
Externally published	Yes

Keywords

Crystal structure
Layered double hydroxide
Mesopore
Mg-Al composite oxide

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abstract = "Mg-Al layered double hydroxides (LDH) with different particle sizes were prepared using different aging times at high supersaturation by a new method developed in our laboratory. The key features of this method are a very rapid mixing and nucleation process followed by a separate aging process. By calcination of LDH at 500°C, mesoporous Mg-Al composite oxides with an extremely narrow pore size distribution were produced. The crystal structure of the Mg-Al composite oxides was a multiphasic one consisting of MgO-like crystals and a layered materials.",

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AU - Zhao, Yun

AU - Jiao, Qingze

AU - Evans, D. G.

AU - Duan, Xue

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AB - Mg-Al layered double hydroxides (LDH) with different particle sizes were prepared using different aging times at high supersaturation by a new method developed in our laboratory. The key features of this method are a very rapid mixing and nucleation process followed by a separate aging process. By calcination of LDH at 500°C, mesoporous Mg-Al composite oxides with an extremely narrow pore size distribution were produced. The crystal structure of the Mg-Al composite oxides was a multiphasic one consisting of MgO-like crystals and a layered materials.

KW - Crystal structure

KW - Layered double hydroxide

KW - Mesopore

KW - Mg-Al composite oxide

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JO - Science in China, Series B: Chemistry

JF - Science in China, Series B: Chemistry

IS - 1

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Mechanism of pore formation and structural characterization for mesoporous Mg-Al composite oxides

Abstract

Keywords

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