Mechanisms of incipient chemical reaction between Ca(OH)2 and SiO2 under moderate mechanical stressing i: A solid state acid-base reaction and charge transfer due to complex formation

Tomoyuki Watanabe; Tetsuhiko Isobe; Mamoru Senna

doi:10.1006/jssc.1996.0084

Mechanisms of incipient chemical reaction between Ca(OH)₂ and SiO₂ under moderate mechanical stressing i: A solid state acid-base reaction and charge transfer due to complex formation

Tomoyuki Watanabe, Tetsuhiko Isobe, Mamoru Senna

Department of Applied Chemistry

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

47 Citations (Scopus)

Abstract

Mechanisms of an incipient reaction between Ca(OH)₂ and SiO₂ under mechanical stressing are studied mainly by detailed infrared (IR), X-ray photoelectron (XPS), and solid state ¹HNMR spectroscopies. Pretreatments by H-D exchange, adsorption of pyridine or ammonia were carried out prior to IR spectroscopy. From the comparison between the separate and mixed-milling, a solid state acid-base reaction and simultaneous dehydration are revealed. Subsequent charge transfer, confirmed by XPS, leads to the formation of a precursor of complex oxides involving Ca-O-Si bonding.

Original language	English
Pages (from-to)	74-80
Number of pages	7
Journal	Journal of Solid State Chemistry
Volume	122
Issue number	1
DOIs	https://doi.org/10.1006/jssc.1996.0084
Publication status	Published - 1996 Feb 15

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1006/jssc.1996.0084

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Mechanisms of incipient chemical reaction between Ca(OH)₂ and SiO₂ under moderate mechanical stressing i: A solid state acid-base reaction and charge transfer due to complex formation. / Watanabe, Tomoyuki; Isobe, Tetsuhiko; Senna, Mamoru.
In: Journal of Solid State Chemistry, Vol. 122, No. 1, 15.02.1996, p. 74-80.

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

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Mechanisms of incipient chemical reaction between Ca(OH)₂ and SiO₂ under moderate mechanical stressing i: A solid state acid-base reaction and charge transfer due to complex formation

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