Počet záznamů: 1

Atmospheric plasma treatment of detonation nanodiamonds in water

SYSNO ASEP	0471054
Druh ASEP	A - Abstrakt
Zařazení RIV	O - Ostatní
Název	Atmospheric plasma treatment of detonation nanodiamonds in water
Tvůrce(i)	Štenclová, Pavla (FZU-D)_ORCID Fantova, V. (CZ) Artemenko, Anna (FZU-D)_{RID, ORCID} Jirásek, Vít (FZU-D)_RID Jíra, Jaroslav (FZU-D) Rezek, Bohuslav (FZU-D)_{RID, ORCID} Kromka, Alexander (FZU-D)_{RID, ORCID, SAI}
Zdroj.dok.	Development of Materials Science in Research and Education. Book of Abstracts of the 26th Joint Seminar. - Praha : Institute of Physics of the Czech Academy of Sciences, v. v. i., 2016 / Kožíšek Z. ; Král R. ; Zemenová P. - ISBN 978-80-905962-4-5 S. 42
Poč.str.	1 s.
Forma vydání	Tištěná - P
Akce	Joint Seminar Development of Materials Science in Research and Education /26./
Datum konání	29.08.2016 - 02.09.2016
Místo konání	Pavlov
Země	CZ - Česká republika
Typ akce	EUR
Jazyk dok.	eng - angličtina
Země vyd.	CZ - Česká republika
Klíč. slova	detonation nanodiamonds ; atmospheric plasma ; FTIR spectroscopy
Vědní obor RIV	BM - Fyzika pevných látek a magnetismus
CEP	GA15-01687S GA ČR - Grantová agentura ČR
Institucionální podpora	FZU-D - RVO:68378271
Anotace	A novel method for modifying DNDs suspended in water by DC atmospheric plasma sustained above the water suspension was reported. DNDs were used in as-received form (labeled as H-DND) or after air-annealing (labeled as O-DND). The influence of applied voltage (10 and 15 kV) and treatment duration (1, 5 and 10 minutes) on the surface chemistry of DNDs was evaluated by FTIR spectroscopy. Plasma treated H-DND particles reveal i) decreasing ratio of CH3 to CH2 surface groups; ii) disappearance of double bonds present in the graphitic shell of the particles and iii) re-arrangement of residual oxygen-containing moieties on the particle surface. In contrast to H-DNDs, the chemical state of O-DND surface was not affected by plasma treatment. In this case, newly formed doublet at 1580 and 1604 cm-1 was detected whose origin is not clear yet. Complementary XPS and Raman measurements did not reflect any changes of DNDs after the plasma treatment.
Pracoviště	Fyzikální ústav
Kontakt	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Rok sběru	2017

Počet záznamů: 1