Number of the records: 1

Filamentation of diamond nanoparticles treated in underwater corona discharge

SYSNO ASEP	0458854
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Filamentation of diamond nanoparticles treated in underwater corona discharge
Author(s)	Jirásek, Vít (FZU-D)_RID Lukeš, Petr (UFP-V)_{RID, ORCID} Kozak, Halyna (FZU-D)_{RID, ORCID} Artemenko, Anna (FZU-D)_{RID, ORCID} Člupek, Martin (UFP-V)_RID Čermák, Jan (FZU-D)_{RID, SAI, ORCID} Rezek, Bohuslav (FZU-D)_{RID, ORCID} Kromka, Alexander (FZU-D)_{RID, ORCID, SAI}
Source Title	RSC Advances. - : Royal Society of Chemistry Roč. 6, č. 3 (2016), 2352-2360
Number of pages	9 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	nanodiamonds ; pulsed streamer corona discharge ; filamentation
Subject RIV	BM - Solid Matter Physics ; Magnetism
R&D Projects	GA15-01687S GA ČR - Czech Science Foundation (CSF)
	LD14011 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	FZU-D - RVO:68378271 ; UFP-V - RVO:61389021
UT WOS	000368191100079
EID SCOPUS	84954094158
DOI	10.1039/c5ra23292a
Annotation	Diamond nanoparticles (DNPs) with a nominal diameter of 5 nm were treated using underwater pulsed streamer corona discharge. A reactor with a needle-to-plate electrode system was employed. The electrolytic conductivity of aqueous DNPs suspensions (0.37 g l-1) was adjusted by NaCl to 100 and 500 mS cm-1. The discharge-treated particles predominantly formed several mm long ﬁlaments consisting of agglomerates with submicron diameter, independent of the solution conductivity and the treatment time. The treatment of DNPs decreased the sp2-bonded carbon atoms, as evaluated by XPS for more conductive solution. For both solutions, oxidation of the DNP surface was observed. FTIR measurements showed evolution of new bands at 800–950 cm-1 and 1261 cm-1, which were attributed to the formation of epoxides via the attack of HO2 radicals on surface C=C double bonds.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2017

Number of the records: 1