Mechanical and magnetic properties of Mg-Ni hydrosilicate nanoscrolls as study objects for atomic force microscopy

Abstract

In hydrosilicates with the structure of chrysotile, pecoraite, and halloysite, elastic strains in the composite hydrosilicate layer are compensated by folding into nanoscrolls. A wide range of such particles with different compositions can be produced by hydrothermal synthesis, which, together with the structural and morphological characteristics, makes them promising adsorbents, capsules, catalysts, and reinforcing components of composite materials. For such potential applications as magnetically controlled adsorbents and catalysts, ferromagnetic chemical elements are included in the composition of the nanoscrolls. Studies of the individual nanoscrolls require special approaches. This article discusses the use of atomic force microscopy for such studies.

Keywords:

• Hydrosilicates
• nanoparticles
• atomic force microscopy
• magnetic force microscopy
• Young’s modulus
• plastic deformation
• probe-sample interaction
• AFM tip functionalization

Additional information

Funding

The research was supported by the Russian Science Foundation (grant 19-13-00151).