Hydrodynamics of nanorolling

Abstract

An initial stage of nanoroll formation in a hydrothermal medium is investigated -the stage of rolling of a double layer under the action of internal stresses. A critical role in the rolling process is attributed to the viscous liquid surrounding the roll. A method is proposed to calculate the liquid flow around the forming nanoroll. A calculation of the rolling process is also performed. Finally, disturbance of the liquid by the rolling nanotube is studied.

Synthesis of Birnessite Structure Layers at the Solution–Air Interface and the Formation of Microtubules from Them

“…According to the reports, in most cases nanotubular structures can be produced under conditions of solvo- or hydrothermal synthesis using compounds with a layered crystal structure. Being subjected to these conditions, separate nanosheets of these compounds roll up into nanotubes, , also called nanoscrolls or nanorolls. Also, tubular structures were synthesized by the thermal evaporation method, by the template method, − and by the method offered by Prinz. , …”