Experimental Assessment of the Structural Parameters of Highly Porous Silica: Probe Microscopy Data


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Abstract

The morphology of monodisperse spherical mesoporous silica particles with a regular pore structure is studied with atomic force microscopy. The size of nanotubes is found: the internal diameter is 2.6 nm, the external diameter is 4.8 nm, and the wall thickness is 1.1 nm. A method for assessing the strength parameters of highly porous materials is proposed. The calculated Young’s modulus of a nanotube along its axis is 91.7 GPa.

About the authors

E. A. Sosnov

St. Petersburg State Institute of Technology

Author for correspondence.
Email: Sosnov@lti-gti.ru
Russian Federation, St. Petersburg, 190013

T. S. Trubina

St. Petersburg State Institute of Technology

Email: Sosnov@lti-gti.ru
Russian Federation, St. Petersburg, 190013

D. A. Kurdyukov

Ioffe Physical-Technical Institute, Russian Academy of Sciences

Email: Sosnov@lti-gti.ru
Russian Federation, St. Petersburg, 194021

A. A. Malygin

St. Petersburg State Institute of Technology

Email: Sosnov@lti-gti.ru
Russian Federation, St. Petersburg, 190013


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