Proto-Calcite and Proto-Vaterite in Amorphous Calcium Carbonates

被引：303

作者：

Gebauer, Denis ^{[1
]}

Gunawidjaja, Philips N. ^{[2
]}

Ko, J. Y. Peter ^{[3
]}

Bacsik, Zoltan ^{[1
]}

Aziz, Baroz ^{[1
]}

Liu, Lijia ^{[3
]}

Hu, Yongfeng ^{[4
]}

Bergstrom, Lennart ^{[1
]}

Tai, Cheuk-Wai ^{[5
]}

Sham, Tsun-Kong ^{[3
]}

Eden, Mattias ^{[2
]}

Hedin, Niklas ^{[1
]}

机构：

[1] Stockholm Univ, Dept Mat & Environm Chem, Mat Chem Unit, S-10691 Stockholm, Sweden

[2] Stockholm Univ, Dept Mat & Environm Chem, Phys Chem Unit, S-10691 Stockholm, Sweden

[3] Univ Western Ontario, Dept Chem, London, ON N6A 5B7, Canada

[4] Univ Saskatchewan, Canadian Light Source Inc, Saskatoon, SK S7N 0X4, Canada

[5] Stockholm Univ, Dept Mat & Environm Chem, Struct & Inorgan Chem Unit, S-10691 Stockholm, Sweden

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2010年 / 49卷 / 47期

基金：

瑞典研究理事会; 加拿大创新基金会;

关键词：

amorphous materials; calcium carbonate; crystallization; EXAFS spectroscopy; NMR spectroscopy; HYDROPHILIC BLOCK-COPOLYMER; STRUCTURAL-CHARACTERIZATION; CACO3; PHASE; BIOMINERALIZATION; CRYSTALLIZATION; STABILIZATION; PRECIPITATION; SPECTROSCOPY; PARTICLES;

D O I：

10.1002/anie.201003220

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Amorphous order: Amorphous calcium carbonates (ACC) have an intrinsic structure relating to the crystalline polymorphs of calcite and vaterite. The proto-crystalline structures of calcite and vaterite (pc-ACC and pv-ACC) are analyzed by NMR (see picture), IR, and EXAFS spectroscopy, which shows that the structuring of ACC relates to the underlying pH-dependent equilibria. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：8889 / 8891

页数：3

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