Excess oxygen in 12CaO·7Al2O3 studied by thermogravimetric analysis

Katsuro Hayashi; Masahiro Hirano; Hideo Hosono

doi:10.1246/cl.2005.586

Excess oxygen in 12CaO·7Al₂O₃ studied by thermogravimetric analysis

Katsuro Hayashi
, Masahiro Hirano
, Hideo Hosono

研究成果: ジャーナルへの寄稿 › 学術誌 › 査読

27 被引用数 (Scopus)

抄録

Oxygen radial (O2^-, O^-)-accommodated 12CaO·7Al₂O₃ (CI2A7) releases oxygen molecules at about 800 C when heated in helium. The corresponding weight loss nearly accords with that calculated from an amount of the accommodated radicals, providing solid evidence that they are formed by an oxygen gas uptake from the atmosphere. Small difference between the observed and calculated losses suggests the presence of peroxide ion, O₂^2-, which is confirmed by the enhancement of 770 cm^-1 band in Raman spectra of the radical-accommodated samples.

本文言語	英語
ページ（範囲）	586-587
ページ数	2
ジャーナル	Chemistry Letters
巻	34
号	4
DOI	https://doi.org/10.1246/cl.2005.586
出版ステータス	出版済み - 4月 5 2005
外部発表	はい

!!!All Science Journal Classification (ASJC) codes

化学一般

文献へのアクセス

10.1246/cl.2005.586

他のファイルとリンク

引用スタイル

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abstract = "Oxygen radial (O2-, O-)-accommodated 12CaO·7Al2O3 (CI2A7) releases oxygen molecules at about 800 C when heated in helium. The corresponding weight loss nearly accords with that calculated from an amount of the accommodated radicals, providing solid evidence that they are formed by an oxygen gas uptake from the atmosphere. Small difference between the observed and calculated losses suggests the presence of peroxide ion, O22-, which is confirmed by the enhancement of 770 cm-1 band in Raman spectra of the radical-accommodated samples.",

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N2 - Oxygen radial (O2-, O-)-accommodated 12CaO·7Al2O3 (CI2A7) releases oxygen molecules at about 800 C when heated in helium. The corresponding weight loss nearly accords with that calculated from an amount of the accommodated radicals, providing solid evidence that they are formed by an oxygen gas uptake from the atmosphere. Small difference between the observed and calculated losses suggests the presence of peroxide ion, O22-, which is confirmed by the enhancement of 770 cm-1 band in Raman spectra of the radical-accommodated samples.

AB - Oxygen radial (O2-, O-)-accommodated 12CaO·7Al2O3 (CI2A7) releases oxygen molecules at about 800 C when heated in helium. The corresponding weight loss nearly accords with that calculated from an amount of the accommodated radicals, providing solid evidence that they are formed by an oxygen gas uptake from the atmosphere. Small difference between the observed and calculated losses suggests the presence of peroxide ion, O22-, which is confirmed by the enhancement of 770 cm-1 band in Raman spectra of the radical-accommodated samples.

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