Preparation and chemical properties of magnesium aluminium oxide solid solutions

Tsugio Sato; Kazuhiro Kato; Tadashi Endo; Masahiko Shimada

doi:10.1016/0168-7336(86)80088-2

Preparation and chemical properties of magnesium aluminium oxide solid solutions

Tsugio Sato, Kazuhiro Kato, Tadashi Endo, Masahiko Shimada

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

109 Citations (Scopus)

Abstract

Magnesium aluminium oxide solid solutions were prepared by thermal decomposition of hydrotalcite-like compounds, [Mg₁-xAl_x,(OH)₂](CO₃)_{x 2}·mH₂O, at 500-700°C. The Nad-type solid solutions with a cation defect structure of Mg_{2(1-x) (2+x)}Al_2x (2+x)XXX_x (2+x)O were formed in the range 0.15 ≤ Al/(Mg+Al) ≤ 0.33. Magnesium aluminium oxide hydrated and took up carbonate ion from aqueous solution to reconstruct the hydrotalcite-type structure. Phosphate was also taken up, at a rate that decreased with increasing thermal decomposition temperature from 500 to 700°C, although the nature of the product in this instance was not established. The solid solutions decomposed above 1000°C to MgO and MgAl₂O₄, which showed no capacity to take up anions.

Original language	English
Pages (from-to)	253-260
Number of pages	8
Journal	Reactivity of Solids
Volume	2
Issue number	3
DOIs	https://doi.org/10.1016/0168-7336(86)80088-2
Publication status	Published - 1986 Dec

ASJC Scopus subject areas

Engineering(all)

Access to Document

10.1016/0168-7336(86)80088-2

Cite this

@article{dc2a0c3ef1a34a4caff02c9b29432d04,

title = "Preparation and chemical properties of magnesium aluminium oxide solid solutions",

abstract = "Magnesium aluminium oxide solid solutions were prepared by thermal decomposition of hydrotalcite-like compounds, [Mg1-xAlx,(OH)2](CO3) x 2·mH2O, at 500-700°C. The Nad-type solid solutions with a cation defect structure of Mg 2(1-x) (2+x)Al 2x (2+x)XXX x (2+x)O were formed in the range 0.15 ≤ Al/(Mg+Al) ≤ 0.33. Magnesium aluminium oxide hydrated and took up carbonate ion from aqueous solution to reconstruct the hydrotalcite-type structure. Phosphate was also taken up, at a rate that decreased with increasing thermal decomposition temperature from 500 to 700°C, although the nature of the product in this instance was not established. The solid solutions decomposed above 1000°C to MgO and MgAl2O4, which showed no capacity to take up anions.",

author = "Tsugio Sato and Kazuhiro Kato and Tadashi Endo and Masahiko Shimada",

year = "1986",

month = dec,

doi = "10.1016/0168-7336(86)80088-2",

language = "English",

volume = "2",

pages = "253--260",

journal = "Solid State Ionics",

issn = "0167-2738",

publisher = "Elsevier",

number = "3",

}

TY - JOUR

T1 - Preparation and chemical properties of magnesium aluminium oxide solid solutions

AU - Sato, Tsugio

AU - Kato, Kazuhiro

AU - Endo, Tadashi

AU - Shimada, Masahiko

PY - 1986/12

Y1 - 1986/12

N2 - Magnesium aluminium oxide solid solutions were prepared by thermal decomposition of hydrotalcite-like compounds, [Mg1-xAlx,(OH)2](CO3) x 2·mH2O, at 500-700°C. The Nad-type solid solutions with a cation defect structure of Mg 2(1-x) (2+x)Al 2x (2+x)XXX x (2+x)O were formed in the range 0.15 ≤ Al/(Mg+Al) ≤ 0.33. Magnesium aluminium oxide hydrated and took up carbonate ion from aqueous solution to reconstruct the hydrotalcite-type structure. Phosphate was also taken up, at a rate that decreased with increasing thermal decomposition temperature from 500 to 700°C, although the nature of the product in this instance was not established. The solid solutions decomposed above 1000°C to MgO and MgAl2O4, which showed no capacity to take up anions.

AB - Magnesium aluminium oxide solid solutions were prepared by thermal decomposition of hydrotalcite-like compounds, [Mg1-xAlx,(OH)2](CO3) x 2·mH2O, at 500-700°C. The Nad-type solid solutions with a cation defect structure of Mg 2(1-x) (2+x)Al 2x (2+x)XXX x (2+x)O were formed in the range 0.15 ≤ Al/(Mg+Al) ≤ 0.33. Magnesium aluminium oxide hydrated and took up carbonate ion from aqueous solution to reconstruct the hydrotalcite-type structure. Phosphate was also taken up, at a rate that decreased with increasing thermal decomposition temperature from 500 to 700°C, although the nature of the product in this instance was not established. The solid solutions decomposed above 1000°C to MgO and MgAl2O4, which showed no capacity to take up anions.

UR - http://www.scopus.com/inward/record.url?scp=0022987226&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0022987226&partnerID=8YFLogxK

U2 - 10.1016/0168-7336(86)80088-2

DO - 10.1016/0168-7336(86)80088-2

M3 - Article

AN - SCOPUS:0022987226

VL - 2

SP - 253

EP - 260

JO - Solid State Ionics

JF - Solid State Ionics

SN - 0167-2738

IS - 3

ER -

Preparation and chemical properties of magnesium aluminium oxide solid solutions

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this