The hydroxylated surface of MgO powders and the formation of surface sites

S. Coluccia; S. Lavagnino; L. Marchese

doi:10.1016/0254-0584(88)90016-8

The hydroxylated surface of MgO powders and the formation of surface sites

S. Coluccia
, S. Lavagnino
, L. Marchese

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

Abstract

The structure of the hydroxylated surface of MgO powders has been studied by infrared spectroscopy and microgravimetry. It is shown that: 1. 1) OH^- groups on corner and edge sites absorb at higher frequency than those on extended {100} faces; 2. 2) the former hydroxyls are more stable than the latter; 3. 3) some surface reconstruction may occur upon hydroxylation-dehydroxylation cycles; 4. 4) neutral anion vacancies might be formed in the last stages of surface dehydroxylation.

Original language	English
Pages (from-to)	445-464
Number of pages	20
Journal	Materials Chemistry and Physics
Volume	18
Issue number	5-6
DOIs	https://doi.org/10.1016/0254-0584(88)90016-8
Publication status	Published - 1988
Externally published	Yes

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10.1016/0254-0584(88)90016-8

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title = "The hydroxylated surface of MgO powders and the formation of surface sites",

abstract = "The structure of the hydroxylated surface of MgO powders has been studied by infrared spectroscopy and microgravimetry. It is shown that: 1. 1) OH- groups on corner and edge sites absorb at higher frequency than those on extended \{100\} faces; 2. 2) the former hydroxyls are more stable than the latter; 3. 3) some surface reconstruction may occur upon hydroxylation-dehydroxylation cycles; 4. 4) neutral anion vacancies might be formed in the last stages of surface dehydroxylation.",

author = "S. Coluccia and S. Lavagnino and L. Marchese",

year = "1988",

doi = "10.1016/0254-0584(88)90016-8",

language = "English",

volume = "18",

pages = "445--464",

journal = "Materials Chemistry and Physics",

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publisher = "Elsevier B.V.",

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T1 - The hydroxylated surface of MgO powders and the formation of surface sites

AU - Coluccia, S.

AU - Lavagnino, S.

AU - Marchese, L.

PY - 1988

Y1 - 1988

N2 - The structure of the hydroxylated surface of MgO powders has been studied by infrared spectroscopy and microgravimetry. It is shown that: 1. 1) OH- groups on corner and edge sites absorb at higher frequency than those on extended {100} faces; 2. 2) the former hydroxyls are more stable than the latter; 3. 3) some surface reconstruction may occur upon hydroxylation-dehydroxylation cycles; 4. 4) neutral anion vacancies might be formed in the last stages of surface dehydroxylation.

AB - The structure of the hydroxylated surface of MgO powders has been studied by infrared spectroscopy and microgravimetry. It is shown that: 1. 1) OH- groups on corner and edge sites absorb at higher frequency than those on extended {100} faces; 2. 2) the former hydroxyls are more stable than the latter; 3. 3) some surface reconstruction may occur upon hydroxylation-dehydroxylation cycles; 4. 4) neutral anion vacancies might be formed in the last stages of surface dehydroxylation.

UR - https://www.scopus.com/pages/publications/0023863813

U2 - 10.1016/0254-0584(88)90016-8

DO - 10.1016/0254-0584(88)90016-8

M3 - Article

SN - 0254-0584

VL - 18

SP - 445

EP - 464

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 5-6

ER -

The hydroxylated surface of MgO powders and the formation of surface sites

Abstract

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