la6b04595_si_001.pdf (440.47 kB)
Oriented Attachment of Calcite Nanocrystals: Formation of Single-Crystalline Configurations as 3D Bundles via Lateral Stacking of 1D Chains
journal contributionposted on 2017-02-03, 22:15 authored by Mihiro Takasaki, Yuya Oaki, Hiroaki Imai
The formation of single-crystalline configurations by the oriented attachment of calcite was experimentally demonstrated as 3D bundles in a nonaqueous system. In the initial stage, 1D short chains elongated in the c direction were formed through the primary oriented attachment of calcite nanoblocks ∼30 nm in diameter. The 3D bundles were then produced through subsequent side-by-side oriented attachment of the 1D chains in the progressive stage. Finally, micrometer-sized single-crystalline architectures were constructed via large-scale oriented attachment of the nanoscale building blocks with a decrease in repulsion force due to the surface charge.
Oriented Attachment3 D Bundles1 D chainsSingle-Crystalline Configurationsattachment3 D bundlescalcitenanoscale building blocks1 D ChainsLateral Stackingc directionmicrometer-sized single-crystalline architecturesnonaqueous systemCalcite Nanocrystals1 Dsurface chargerepulsion forcesingle-crystalline configurations