Unusual water hydrogen bond network around hydrogenated nanodiamonds - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Access content directly
Journal Articles Journal of Physical Chemistry C Year : 2017

Unusual water hydrogen bond network around hydrogenated nanodiamonds

Tristan Petit
  • Function : Author
  • PersonId : 765770
  • IdRef : 203648129
Quentin Brzustowski
  • Function : Author
  • PersonId : 1059132
Hugues Girard
Jean-Charles Arnault

Abstract

Nanodiamonds exhibit exceptional colloidal properties in aqueous media that lead to a wide range of applications in nanomedicine and other fields. Nevertheless, the role of surface chemistry on the hydration of nanodiamonds remains poorly understood. Here, we probed the water hydrogen bond network in aqueous dispersions of nanodiamonds by infrared, Raman, and X-ray absorption spectroscopies applied in situ in aqueous environment. Aqueous dispersions of nanodiamonds with hydrogenated, carboxylated, hydroxylated, and polyfunctional surface terminations were compared. A different hydrogen bond network was found in hydrogenated nanodiamonds dispersions compared to dispersions of nanodiamonds with other surface terminations. Although no hydrogen bonds are formed between water and hydrogenated surface groups, a long-range disruption of the water hydrogen bond network is evidenced in hydrogenated nanodiamonds dispersion. We propose that this unusual hydration structure results from electron accumulation at the diamond–water interface.
Fichier principal
Vignette du fichier
OpenAccess_TristanPetit.pdf (2.27 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive
Licence : CC BY - Attribution

Dates and versions

cea-01791642 , version 1 (17-04-2023)

Licence

Attribution

Identifiers

Cite

Tristan Petit, Ljiljana Puskar, Tatiana Dolenko, Sneha Choudhury, Eglof Ritter, et al.. Unusual water hydrogen bond network around hydrogenated nanodiamonds. Journal of Physical Chemistry C, 2017, 121 (9), pp.5185 - 5194. ⟨10.1021/acs.jpcc.7b00721⟩. ⟨cea-01791642⟩
272 View
14 Download

Altmetric

Share

Gmail Facebook X LinkedIn More