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Size and nitrogen inhomogeneity in detonation and laser synthesized primary nanodiamond particles revealed via salt-assisted deaggregation
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SYSNO ASEP 0541737 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Size and nitrogen inhomogeneity in detonation and laser synthesized primary nanodiamond particles revealed via salt-assisted deaggregation Author(s) Stehlík, Štěpán (FZU-D) RID, ORCID
Henych, Jiří (UACH-T) SAI, RID, ORCID
Štenclová, Pavla (FZU-D) ORCID
Král, Robert (FZU-D) RID, ORCID
Zemenová, Petra (FZU-D) RID, ORCID
Pangrác, Jiří (FZU-D) RID, ORCID, SAI
Vaňek, O. (CZ)
Kromka, Alexander (FZU-D) RID, ORCID, SAI
Rezek, B. (CZ)Number of authors 9 Source Title Carbon. - : Elsevier - ISSN 0008-6223
Roč. 171, Jan (2021), s. 230-239Number of pages 10 s. Language eng - English Country US - United States Keywords detonation nanodiamond ; salt-assisted ultrasonic deaggregation ; size distribution ; colloidal solution ; nitrogen ; inhomogeneity ; surface chemistry Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Nano-materials (production and properties) Subject RIV - cooperation Institute of Inorganic Chemistry - Inorganic Chemistry R&D Projects EF16_019/0000760 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2018110 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GJ18-11711Y GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 ; UACH-T - RVO:61388980 UT WOS 000598371500026 EID SCOPUS 85090866998 DOI 10.1016/j.carbon.2020.09.026 Annotation Here we innovated the salt-assisted ultrasonic deaggregation (SAUD) by employing NaHCO3 (a milling agent with relatively low solubility) followed by dialysis (a purification step) and processed two DND and one laser-synthesized (LND) commercial powders. The obtained ND colloids were separated to single-digit supernatant with the yield of 57-65% and sediment fractions by centrifugation and analysed separately. By thermal analysis we evidenced chemical sensitization of the SAUD-processed DNDs manifested by significantly lower combustion temperatures. By correlation of spectroscopic, microscopic, and thermal analysis techniques we revealed a size and shape inhomogeneity of primary DND particles, also affecting strength of aggregation. By elemental analysis of the fractions we also show that nitrogen content is systematically higher in the smaller primary DND particles. Those features are inherent to all the three ND samples. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2022 Electronic address https://doi.org/10.1016/j.carbon.2020.09.026
Number of the records: 1