CHARACTERIZATION AND REACTIVITY OF NANOSIZED CALCIUM PHOSPHATES PREPARED IN ANHYDROUS ETHANOL

被引：86

作者：

LAYROLLE, P ^{[1
]}

LEBUGLE, A ^{[1
]}

机构：

[1] ECOLE NATL SUPER CHIM, INST NATL POLYTECH TOULOUSE,MAT LAB,CNRS,URA 445, 38 RUE 36 PONTS, F-31400 TOULOUSE, FRANCE

来源：

CHEMISTRY OF MATERIALS | 1994年 / 6卷 / 11期

关键词：

D O I：

10.1021/cm00047a019

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new synthesis route of different calcium phosphates, using calcium diethoxide (Ca(OEt)2) and orthophosphoric acid (H3PO4) as reagents and anhydrous ethanol as solvent is described. By simple variance of the ratio of reagents from 1/1, 8/6, to 9/6, calcium phosphates of various chemical compositions Ca(x)(HPO4)y(PO4)z are precipitated in the ethanol. The solids which form were characterized by different physicochemical analyses, and their thermal behavior was studied by TGA, DTA, chemical analyses, XRD, IR spectroscopy, specific surface areas, and SEM observations. The series of physicochemical results show that the different solid calcium phosphates are amorphous and nanosized and have large specific surface areas and high reactivities. The thermal crystallization and very active sintering at low temperatures, led to metastable beta-Ca2P2O7 and alpha-Ca3(PO4)2.

引用

页码：1996 / 2004

页数：9

共 47 条

[1] Betts F., 1974, T AM CRYST ASS, V10, P73
[2] DEVELOPMENTAL-CHANGES IN BONE-MINERAL STRUCTURE DEMONSTRATED BY EXTENDED X-RAY ABSORPTION FINE-STRUCTURE (EXAFS) SPECTROSCOPY
BINSTED, N
HASNAIN, SS
HUKINS, DWL
[J]. BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 1982, 107 (01) : 89 - 92
[3] EFFECT OF PREPARATION CONDITIONS ON PROPERTIES AND TRANSFORMATION OF AMORPHOUS CALCIUM PHOSPHATE
BLUMENTH.NC
HOLMES, JM
POSNER, AS
[J]. MATERIALS RESEARCH BULLETIN, 1972, 7 (11) : 1181 - +
[4] CONVERSION OF AMORPHOUS CALCIUM PHOSPHATE TO MICROCRYSTALLINE HYDROXYAPATITE - PH-DEPENDENT, SOLUTION-MEDIATED, SOLID-SOLID CONVERSION
BOSKEY, AL
POSNER, AS
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1973, 77 (19) : 2313 - 2317
[5] BRINKER CJ, 1990, SOL GEL SCI PHYSICS
[6] BROWN WE, 1962, NATURE, V196, P1048, DOI 10.1038/1961048b0
[7] CHARLOT G, 1966, METHODES CHIMIE ANAL, P657
[8] VIBRATIONAL-SPECTRA OF BETA-CA2P2O7 AND GAMMA-CA2P2O7
CORNILSEN, BC
CONDRATE, RA
[J]. JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1979, 41 (04): : 602 - 605
[9] STUDY OF THE MINERAL ORGANIC LINKAGE IN AN APATITIC REINFORCED BONE-CEMENT
DANDURAND, J
DELPECH, V
LEBUGLE, A
LAMURE, A
LACABANNE, C
[J]. JOURNAL OF BIOMEDICAL MATERIALS RESEARCH, 1990, 24 (10): : 1377 - 1384
[10] Delpech V, 1990, Clin Mater, V5, P209, DOI 10.1016/0267-6605(90)90020-V

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