Surface chemistry of water-dispersed detonation nanodiamonds modified by atmospheric DC plasma afterglow

0477530 - FZÚ 2018 RIV GB eng J - Journal Article
Štenclová, Pavla - Celedova, V. - Artemenko, Anna - Jirásek, Vít - Jíra, Jaroslav - Rezek, B. - Kromka, Alexander
Surface chemistry of water-dispersed detonation nanodiamonds modified by atmospheric DC plasma afterglow.
RSC Advances. Roč. 7, č. 62 (2017), s. 38973-38980. E-ISSN 2046-2069
R&D Projects: GA ČR GA15-01687S
Institutional support: RVO:68378271
Keywords : diamond nanoparticles * explosive detonation * barrier discharge * absorption * oxidation
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 2.936, year: 2017

Surface modification of detonation nanodiamonds (DNDs) is a key factor for their application in diverse fields of science and technology. In this work we report on an easy and low-cost method for modifying water-dispersed DNDs by atmospheric DC plasma afterglow. DNDs were used in either as-received form (asrec-DND) or oxidized by air-annealing at 450 °C for 30 minutes (O DND). The influence of applied voltage and thus the type of discharge (corona discharge at 10 kV or transient spark discharge at 15 kV) and treatment duration (5 and 10 minutes) on the surface chemistry of DNDs was evaluated by Fourier Transform Infrared (FTIR) spectroscopy supported by X-ray photoelectron spectroscopy (XPS) and dynamic light scattering (DLS).

Permanent Link: http://hdl.handle.net/11104/0273859