Superstructures of calcium carbonate crystals by oriented attachment

被引：240

作者：

Gehrke, N

Cölfen, H

Pinna, N

Antonietti, M

Nassif, N

机构：

[1] Max Planck Inst Colloids & Interfaces, D-14424 Potsdam, Germany

[2] Univ Halle Wittenberg, Inst Anorgan Chem, D-06120 Halle Saale, Saale, Germany

来源：

CRYSTAL GROWTH & DESIGN | 2005年 / 5卷 / 04期

关键词：

D O I：

10.1021/cg050051d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Crystalline hexagonal-shaped superstructures of calcium carbonate, synthesized in the presence of ammonia, are shown to be assembled by a three-dimensional oriented attachment of vaterite nanoparticles. This unusual crystallographic lock-in mechanism enables the formation of complicated rounded structures with a crystallographic orientation from nanosized building blocks, which has so far only been found for transition metal systems.

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页码：1317 / 1319

页数：3

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