Bonding behavior and chemical stability of silica-based nanotubes and their 3D 
assembly

Dennenwaldt, Teresa; Sedlmaier, Stefan J.; Binek, Andreas; Schnick, Wolfgang; Scheu, Christina

doi:10.1021/jp500408x

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Bonding behavior and chemical stability of silica-based nanotubes and their 3D assembly

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Dennenwaldt, T., Sedlmaier, S. J., Binek, A., Schnick, W., & Scheu, C. (2014). Bonding behavior and chemical stability of silica-based nanotubes and their 3D assembly. Journal of Physical Chemistry C, 118(16), 8416-8423. doi:10.1021/jp500408x.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0024-BC03-A

Abstract

Recently discovered amorphous silica-based nanotubes (SBNTs) forming 3D hyperbranched assemblies were studied with transmission electron microscopy. The chemical composition and the element distribution in these template-free synthesized SBNTs were analyzed in depth at the nanoscale with energy-dispersive X-ray and electron energy loss spectroscopy. Furthermore, the bonding behavior of the elements Si, O, N, and P was examined. The SBNTs show a better resistance to extreme pH conditions than pure amorphous silica nanotubes. This is most likely due to the incorporation of N and P in the SBNTs.