Solid state NMR highlights local structures of OXO-anions in hydroxyapatite lattice

A. Osaka, S. Hayakawa, K. Tsuru, T. Kanaya, E. Fujii, K. Kawabata, G. Gasqueres, C. Bonhomme, F. Babonneau, C. Jäger

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Carbonate- and Si-involving hydroxyapatite (C-HA, Si-HA) as well as hydroxyapatite (HAp) was prepared through wet chemical processes. Magic angle Spinning (MAS) NMR spectroscopy was applied together with Cross-Polarization (CP) techniques to study chemical environments around the guest oxo-anions. C-HA involved at least four carbonate sites, but the one for ∼168 ppm was left unassigned. In Si-HA, only Q0 (SiO44-) replaced the phosphate ion site but other Si atoms were polymerized and present on the surface or in the grain boundary of the Si-HA particles. The 31P MAS and CP-MAS spectra indicated the absence of HPO42- in the lattice, and suggested the presence of an amorphous phosphate phase on the particle surface.

本文言語英語
ホスト出版物のタイトルA Global Road Map for Ceramic Materials and Technologies: Forecasting the Future of Ceramics, International Ceramic Federation - 2nd International Congress on Ceramics, ICC 2008, Final Programme
出版ステータス出版済み - 2008
外部発表はい
イベント2nd International Congress on Ceramics, ICC 2008 - Verona, イタリア
継続期間: 6 29 20087 4 2008

その他

その他2nd International Congress on Ceramics, ICC 2008
国/地域イタリア
CityVerona
Period6/29/087/4/08

All Science Journal Classification (ASJC) codes

  • セラミックおよび複合材料

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