Characterizations of the thermal decomposition of brucite prepared by sol-gel technique for synthesis of nanocrystalline MgO

J. A. Wang; O. Novaro; X. Bokhimi; T. López; R. Gómez; J. Navarrete; M. E. Llanos; E. López-Salinas

doi:10.1016/S0167-577X(97)00273-5

Characterizations of the thermal decomposition of brucite prepared by sol-gel technique for synthesis of nanocrystalline MgO

J. A. Wang, O. Novaro, X. Bokhimi, T. López, R. Gómez, J. Navarrete, M. E. Llanos, E. López-Salinas

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132 Scopus citations

Abstract

Brucite was synthesized by the sol-gel technique using magnesium diethoxide in a homogeneous reaction medium. Its decomposition, including dehydroxylation, crystallization and phase transformation was studied by XRD, TGA-DTG, CTEM, HRTEM, SAED and FTIR techniques. It has been proposed that during the dehydroxylation and decomposition of the magnesium diethoxide gel, some vacancies are generated. The decomposition of brucite with hexagonal structure to form periclase with the cubic structure occurs in the temperature range from 473 to 773 K. In this case, nanocrystalline MgO is formed from the break down of the brucite crystalline structure.

Original language	English
Pages (from-to)	317-323
Number of pages	7
Journal	Materials Letters
Volume	35
Issue number	5-6
DOIs	https://doi.org/10.1016/S0167-577X(97)00273-5
State	Published - Jun 1998
Externally published	Yes

Keywords

Brucite
Nanocrystalline MgO
Phase transformation
Sol-gel
Structural defect
Thermal decomposition

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10.1016/S0167-577X(97)00273-5

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@article{32ede3637f4b4c6997cce33b8ca5cb0a,

title = "Characterizations of the thermal decomposition of brucite prepared by sol-gel technique for synthesis of nanocrystalline MgO",

abstract = "Brucite was synthesized by the sol-gel technique using magnesium diethoxide in a homogeneous reaction medium. Its decomposition, including dehydroxylation, crystallization and phase transformation was studied by XRD, TGA-DTG, CTEM, HRTEM, SAED and FTIR techniques. It has been proposed that during the dehydroxylation and decomposition of the magnesium diethoxide gel, some vacancies are generated. The decomposition of brucite with hexagonal structure to form periclase with the cubic structure occurs in the temperature range from 473 to 773 K. In this case, nanocrystalline MgO is formed from the break down of the brucite crystalline structure.",

keywords = "Brucite, Nanocrystalline MgO, Phase transformation, Sol-gel, Structural defect, Thermal decomposition",

author = "Wang, {J. A.} and O. Novaro and X. Bokhimi and T. L{\'o}pez and R. G{\'o}mez and J. Navarrete and Llanos, {M. E.} and E. L{\'o}pez-Salinas",

note = "Funding Information: The formation of glushinskite gives rise to some oxygen vacancies which appear in the network of brucite. This which is supported by the FTIR characterization. ",

year = "1998",

month = jun,

doi = "10.1016/S0167-577X(97)00273-5",

language = "Ingl{\'e}s",

volume = "35",

pages = "317--323",

journal = "Materials Letters",

issn = "0167-577X",

number = "5-6",

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TY - JOUR

T1 - Characterizations of the thermal decomposition of brucite prepared by sol-gel technique for synthesis of nanocrystalline MgO

AU - Wang, J. A.

AU - Novaro, O.

AU - Bokhimi, X.

AU - López, T.

AU - Gómez, R.

AU - Navarrete, J.

AU - Llanos, M. E.

AU - López-Salinas, E.

N1 - Funding Information: The formation of glushinskite gives rise to some oxygen vacancies which appear in the network of brucite. This which is supported by the FTIR characterization.

PY - 1998/6

Y1 - 1998/6

N2 - Brucite was synthesized by the sol-gel technique using magnesium diethoxide in a homogeneous reaction medium. Its decomposition, including dehydroxylation, crystallization and phase transformation was studied by XRD, TGA-DTG, CTEM, HRTEM, SAED and FTIR techniques. It has been proposed that during the dehydroxylation and decomposition of the magnesium diethoxide gel, some vacancies are generated. The decomposition of brucite with hexagonal structure to form periclase with the cubic structure occurs in the temperature range from 473 to 773 K. In this case, nanocrystalline MgO is formed from the break down of the brucite crystalline structure.

AB - Brucite was synthesized by the sol-gel technique using magnesium diethoxide in a homogeneous reaction medium. Its decomposition, including dehydroxylation, crystallization and phase transformation was studied by XRD, TGA-DTG, CTEM, HRTEM, SAED and FTIR techniques. It has been proposed that during the dehydroxylation and decomposition of the magnesium diethoxide gel, some vacancies are generated. The decomposition of brucite with hexagonal structure to form periclase with the cubic structure occurs in the temperature range from 473 to 773 K. In this case, nanocrystalline MgO is formed from the break down of the brucite crystalline structure.

KW - Brucite

KW - Nanocrystalline MgO

KW - Phase transformation

KW - Sol-gel

KW - Structural defect

KW - Thermal decomposition

UR - http://www.scopus.com/inward/record.url?scp=0032097811&partnerID=8YFLogxK

U2 - 10.1016/S0167-577X(97)00273-5

DO - 10.1016/S0167-577X(97)00273-5

M3 - Artículo

SN - 0167-577X

VL - 35

SP - 317

EP - 323

JO - Materials Letters

JF - Materials Letters

IS - 5-6

ER -

Characterizations of the thermal decomposition of brucite prepared by sol-gel technique for synthesis of nanocrystalline MgO

Abstract

Keywords

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