Generation of graphite nanomaterials from pencil leads with the
aid of a 3D positioning sparking device: Application to the
voltammetric determination of nitroaromatic explosives

J 2020

Generation of graphite nanomaterials from pencil leads with the aid of a 3D positioning sparking device: Application to the voltammetric determination of nitroaromatic explosives

TRACHIOTI, Maria, Dušan HEMZAL, Jan HRBÁČ a Mamas I PRODROMIDIS

Základní údaje

Originální název

Generation of graphite nanomaterials from pencil leads with the aid of a 3D positioning sparking device: Application to the voltammetric determination of nitroaromatic explosives

Název česky

Příprava grafitových nanomateriálů z uhlíkových tuh za pomoci jiskrového výboje pro voltametrickou detekci nitroaromatických výbušnin

Autoři

TRACHIOTI, Maria (300 Řecko), Dušan HEMZAL (203 Česká republika, domácí), Jan HRBÁČ (203 Česká republika, domácí) a Mamas I PRODROMIDIS (300 Řecko)

Vydání

Sensors and Actuators B: Chemical, Amsterdam, Elsevier B.V. 2020, 0925-4005

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

21001 Nano-materials

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Full Text

Impakt faktor

Impact factor: 7.460

Kód RIV

RIV/00216224:14310/20:00115343

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1016/j.snb.2020.127871

UT WoS

000519306300028

Klíčová slova česky

uhlíkové nanomateriály; jiskrový výboj; 2.4.6-trinitrotluen; tištěné elektrody

Klíčová slova anglicky

Electric discharge Carbon nanomaterials; Sparking ; 2.4.6-trinitrotoluene ; Screen-printed electrodes

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 15. 2. 2023 14:40, Mgr. Dušan Hemzal, Ph.D.

Anotace

V originále

We report on facile generation of graphite nanomaterials (GNMs) with advanced electro catalytic propertiesthrough a direct electric discharge process between pencil leads and graphite screen-printed electrodes (SPEs)at ambient conditions at 1.2 kV. Various commercially available pencil leads of different degrees of hardnesswere examined. Sparked GNM-SPEs were characterized by Raman spectroscopy, SEM, CV, and EIS. Taking ascriterion the highest response to the electro-reduction of nitro group of 2,4,6-trinitrotoluene (TNT) at-0.3 Vat deoxygenated solutions, Castell 9000 (2B) pencil was selected as optimum. GNM-SPEs exhibited a linearresponse over the concentration range 1-100 ppb TNT, while the limit of detection (LOD) based on the 3sigma/mcriterion was calculated 0.44 ppb. The interference effect of other nitro-aromatic explosives and maskingcompounds, which are used to hinder the detection of TNT, was extensively investigated. The determination ofTNT was also achieved by measuring the oxidation of the electrochemically generated hydroxylamine groups. Inthis format, each measurement was conducted with a new electrode polarized at-0.275 V for 2 min. At the costof a slightly increased time of analysis, the anodic determination of TNT offered increased selectivity, applic-ability in non-deoxygenated solutions, linear response over the concentration range 1-50 ppb TNT and anLOD of 0.25 ppb. GNM-SPEs were successfully applied to the determination of TNT in spiked drinking watersamples. Recovery was 101-108 %.

Citovat

TRACHIOTI, Maria, Dušan HEMZAL, Jan HRBÁČ a Mamas I PRODROMIDIS. Generation of graphite nanomaterials from pencil leads with the aid of a 3D positioning sparking device: Application to the voltammetric determination of nitroaromatic explosives. Sensors and Actuators B: Chemical. Amsterdam: Elsevier B.V., 2020, roč. 310, č. 127871, s. 1-8. ISSN 0925-4005. Dostupné z: https://dx.doi.org/10.1016/j.snb.2020.127871.

@article{1625258,
   author = {Trachioti, Maria and Hemzal, Dušan and Hrbáč, Jan and Prodromidis, Mamas I},
   article_location = {Amsterdam},
   article_number = {127871},
   doi = {http://dx.doi.org/10.1016/j.snb.2020.127871},
   keywords = {Electric discharge Carbon nanomaterials; Sparking ; 2.4.6-trinitrotoluene ; Screen-printed electrodes},
   language = {eng},
   issn = {0925-4005},
   journal = {Sensors and Actuators B: Chemical},
   title = {Generation of graphite nanomaterials from pencil leads with the aid of a 3D positioning sparking device: Application to the voltammetric determination of nitroaromatic explosives},
   url = {https://www.sciencedirect.com/science/article/pii/S0925400520302185},
   volume = {310},
   year = {2020}
}

TY  - JOUR
ID  - 1625258
AU  - Trachioti, Maria - Hemzal, Dušan - Hrbáč, Jan - Prodromidis, Mamas I
PY  - 2020
TI  - Generation of graphite nanomaterials from pencil leads with the aid of a 3D positioning sparking device: Application to the voltammetric determination of nitroaromatic explosives
JF  - Sensors and Actuators B: Chemical
VL  - 310
IS  - 127871
SP  - 1-8
EP  - 1-8
PB  - Elsevier B.V.
SN  - 09254005
KW  - Electric discharge Carbon nanomaterials
KW  - Sparking
KW  - 2.4.6-trinitrotoluene
KW  - Screen-printed electrodes
UR  - https://www.sciencedirect.com/science/article/pii/S0925400520302185
L2  - https://www.sciencedirect.com/science/article/pii/S0925400520302185
N2  - We report on facile generation of graphite nanomaterials (GNMs) with advanced electro catalytic propertiesthrough a direct electric discharge process between pencil leads and graphite screen-printed electrodes (SPEs)at ambient conditions at 1.2 kV. Various commercially available pencil leads of different degrees of hardnesswere examined. Sparked GNM-SPEs were characterized by Raman spectroscopy, SEM, CV, and EIS. Taking ascriterion the highest response to the electro-reduction of nitro group of 2,4,6-trinitrotoluene (TNT) at-0.3 Vat deoxygenated solutions, Castell 9000 (2B) pencil was selected as optimum. GNM-SPEs exhibited a linearresponse over the concentration range 1-100 ppb TNT, while the limit of detection (LOD) based on the 3sigma/mcriterion was calculated 0.44 ppb. The interference effect of other nitro-aromatic explosives and maskingcompounds, which are used to hinder the detection of TNT, was extensively investigated. The determination ofTNT was also achieved by measuring the oxidation of the electrochemically generated hydroxylamine groups. Inthis format, each measurement was conducted with a new electrode polarized at-0.275 V for 2 min. At the costof a slightly increased time of analysis, the anodic determination of TNT offered increased selectivity, applic-ability in non-deoxygenated solutions, linear response over the concentration range 1-50 ppb TNT and anLOD of 0.25 ppb. GNM-SPEs were successfully applied to the determination of TNT in spiked drinking watersamples. Recovery was 101-108 %.
ER  -

TRACHIOTI, Maria, Dušan HEMZAL, Jan HRBÁČ a Mamas I PRODROMIDIS. Generation of graphite nanomaterials from pencil leads with the aid of a 3D positioning sparking device: Application to the voltammetric determination of nitroaromatic explosives. \textit{Sensors and Actuators B: Chemical}. Amsterdam: Elsevier B.V., 2020, roč.~310, č.~127871, s.~1-8. ISSN~0925-4005. Dostupné z: https://dx.doi.org/10.1016/j.snb.2020.127871.

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