A hydrated crystalline calcium carbonate phase: Calcium carbonate hemihydrate

被引：200

作者：

Zou, Zhaoyong ^{[1
,14
]}

Habraken, Wouter J. E. M. ^{[1
]}

Matveeva, Galina ^{[2
]}

Jensen, Anders C. S. ^{[1
]}

Bertinetti, Luca ^{[1
]}

Hood, Matthew A. ^{[1
]}

Sun, Chang-yu ^{[3
]}

Gilbert, Pupa U. P. A. ^{[3
,4
,5
,6
]}

Polishchuk, Iryna ^{[7
]}

Pokroy, Boaz ^{[7
]}

Mahamid, Julia ^{[8
,9
]}

Politi, Yael ^{[1
]}

Weiner, Steve ^{[10
]}

Werner, Peter ^{[11
]}

Bette, Sebastian ^{[12
]}

Dinnebier, Robert ^{[12
]}

Kolb, Ute ^{[2
,13
]}

Zolotoyabko, Emil ^{[7
]}

Fratzl, Peter ^{[1
]}

机构：

[1] Max Planck Inst Colloids & Interfaces, Dept Biomat, Potsdam, Germany

[2] Johannes Gutenberg Univ Mainz, Inst Anorgan & Analyt Chem, Mainz, Germany

[3] Univ Wisconsin Madison, Dept Phys, Madison, WI USA

[4] Univ Wisconsin Madison, Dept Chem, Madison, WI USA

[5] Univ Wisconsin Madison, Dept Geosci, Madison, WI USA

[6] Univ Wisconsin Madison, Dept Mat Sci, Madison, WI USA

[7] Technion Israel Inst Technol, Dept Mat Sci & Engn, Haifa, Israel

[8] Max Planck Inst Biochem, Dept Mol Struct Biol, Martinsried, Germany

[9] European Mol Biol Lab, Struct & Computat Biol Unit, Heidelberg, Germany

[10] Weizmann Inst Sci, Dept Struct Biol, Rehovot, Israel

[11] Max Planck Inst Microstruct Phys, Halle, Germany

[12] Max Planck Inst Solid State Res, Stuttgart, Germany

[13] Tech Univ Darmstadt, Inst Appl Geosci, Darmstadt, Germany

[14] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan, Hubei, Peoples R China

来源：

SCIENCE | 2019年 / 363卷 / 6425期

关键词：

AUTOMATED DIFFRACTION TOMOGRAPHY; X-RAY; BIOMINERALIZATION; REFINEMENT; RAMAN; NUCLEATION; DISORDER; VATERITE; SPECTRA; CACO3;

D O I：

10.1126/science.aav0210

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

As one of the most abundant materials in the world, calcium carbonate, CaCO3, is the main constituent of the skeletons and shells of various marine organisms. It is used in the cement industry and plays a crucial role in the global carbon cycle and formation of sedimentary rocks. For more than a century, only three polymorphs of pure CaCO3-calcite, aragonite, and vaterite-were known to exist at ambient conditions, as well as two hydrated crystal phases, monohydrocalcite (CaCO3-1H(2)O) and ikaite (CaCO3-6H(2)O). While investigating the role of magnesium ions in crystallization pathways of amorphous calcium carbonate, we unexpectedly discovered an unknown crystalline phase, hemihydrate CaCO3.1/2H(2)O, with monoclinic structure. This discovery may have important implications in biomineralization, geology, and industrial processes based on hydration of CaCO3.

引用

页码：396 / +

页数：35

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