Investigation of Pristine Graphite Oxide as Room-Temperature
Chemiresistive Ammonia Gas Sensing Material

J 2017

Investigation of Pristine Graphite Oxide as Room-Temperature Chemiresistive Ammonia Gas Sensing Material

BANNOV, Alexander, Ondřej JAŠEK, Lenka ZAJÍČKOVÁ a Jan PRÁŠEK

Základní údaje

Originální název

Investigation of Pristine Graphite Oxide as Room-Temperature Chemiresistive Ammonia Gas Sensing Material

Název česky

Studium čistého grafén oxidu jako chemirezistivního senzoru amoniaku za pokojové teploty

Autoři

BANNOV, Alexander (643 Rusko), Ondřej JAŠEK (203 Česká republika, garant, domácí), Lenka ZAJÍČKOVÁ (203 Česká republika, domácí) a Jan PRÁŠEK (203 Česká republika)

Vydání

SENSORS, Basel, Switzerland, Molecular Diversity Preservation International, 2017, 1424-8220

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10305 Fluids and plasma physics

Stát vydavatele

Švýcarsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

web nakladatele

Impakt faktor

Impact factor: 2.475

Kód RIV

RIV/00216224:14740/17:00096129

Organizační jednotka

Středoevropský technologický institut

DOI

http://dx.doi.org/10.3390/s17020320

UT WoS

000395482700104

Klíčová slova česky

grafit oxid; chemirezistivní senzor plynu; citlivost; amoniak

Klíčová slova anglicky

graphite oxide; chemiresistive gas sensor; sensitivity; ammonia

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 20. 3. 2018 21:15, doc. Mgr. Lenka Zajíčková, Ph.D.

Anotace

ORIG CZ

V originále

Graphite oxide has been investigated as a possible room-temperature chemiresistive sensor of ammonia in a gas phase. Graphite oxide was synthesized from high purity graphite using the modified Hummers method. The graphite oxide sample was investigated using scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction, thermogravimetry and differential scanning calorimetry. Sensing properties were tested in a wide range of ammonia concentrations in air (10–1000 ppm) and under different relative humidity levels (3%–65%). It was concluded that the graphite oxide–based sensor possessed a good response to NH3 in dry synthetic air (dR/R0 ranged from 2.5% to 7.4% for concentrations of 100–500 ppm and 3% relative humidity) with negligible cross-sensitivity towards H2 and CH4. It was determined that the sensor recovery rate was improved with ammonia concentration growth. Increasing the ambient relative humidity led to an increase of the sensor response. The highest response of 22.2% for 100 ppm of ammonia was achieved at a 65% relative humidity level

Česky

Senzor amoniaku na bazi grafit oxidu za pokojové teploty.

Návaznosti

LQ1601, projekt VaV

Název: CEITEC 2020 (Akronym: CEITEC2020)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, CEITEC 2020

Přiložené soubory

Bannov_Investigation_of_Pristine_Graphite_Oxide_Room-Temperature_Chemiresistive_Ammonia_Gas_Sensing_Material_as_sensors-17-00320.pdf

Požádat o autorskou verzi souboru

Citovat

BANNOV, Alexander, Ondřej JAŠEK, Lenka ZAJÍČKOVÁ a Jan PRÁŠEK. Investigation of Pristine Graphite Oxide as Room-Temperature Chemiresistive Ammonia Gas Sensing Material. SENSORS. Basel, Switzerland: Molecular Diversity Preservation International, 2017, roč. 17, č. 2, s. 320-329. ISSN 1424-8220. Dostupné z: https://dx.doi.org/10.3390/s17020320.

@article{1371914,
   author = {Bannov, Alexander and Jašek, Ondřej and Zajíčková, Lenka and Prášek, Jan},
   article_location = {Basel, Switzerland},
   article_number = {2},
   doi = {http://dx.doi.org/10.3390/s17020320},
   keywords = {graphite oxide; chemiresistive gas sensor; sensitivity; ammonia},
   language = {eng},
   issn = {1424-8220},
   journal = {SENSORS},
   title = {Investigation of Pristine Graphite Oxide as Room-Temperature Chemiresistive Ammonia Gas Sensing Material},
   url = {http://www.mdpi.com/1424-8220/17/2/320},
   volume = {17},
   year = {2017}
}

TY  - JOUR
ID  - 1371914
AU  - Bannov, Alexander - Jašek, Ondřej - Zajíčková, Lenka - Prášek, Jan
PY  - 2017
TI  - Investigation of Pristine Graphite Oxide as Room-Temperature Chemiresistive Ammonia Gas Sensing Material
JF  - SENSORS
VL  - 17
IS  - 2
SP  - 320-329
EP  - 320-329
PB  - Molecular Diversity Preservation International
SN  - 14248220
KW  - graphite oxide
KW  - chemiresistive gas sensor
KW  - sensitivity
KW  - ammonia
UR  - http://www.mdpi.com/1424-8220/17/2/320
N2  - Graphite oxide has been investigated as a possible room-temperature chemiresistive sensor of ammonia in a gas phase. Graphite oxide was synthesized from high purity graphite using the modified Hummers method. The graphite oxide sample was investigated using scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction, thermogravimetry and differential scanning calorimetry. Sensing properties were tested in a wide range of ammonia concentrations in air (10–1000 ppm) and under different relative humidity levels (3%–65%). It was concluded that the graphite oxide–based sensor possessed a good response to NH3 in dry synthetic air (dR/R0 ranged from 2.5% to 7.4% for concentrations of 100–500 ppm and 3% relative humidity) with negligible cross-sensitivity towards H2 and CH4. It was determined that the sensor recovery rate was improved with ammonia concentration growth. Increasing the ambient relative humidity led to an increase of the sensor response. The highest response of 22.2% for 100 ppm of ammonia was achieved at a 65% relative humidity level
ER  -

BANNOV, Alexander, Ondřej JAŠEK, Lenka ZAJÍČKOVÁ a Jan PRÁŠEK. Investigation of Pristine Graphite Oxide as Room-Temperature Chemiresistive Ammonia Gas Sensing Material. \textit{SENSORS}. Basel, Switzerland: Molecular Diversity Preservation International, 2017, roč.~17, č.~2, s.~320-329. ISSN~1424-8220. Dostupné z: https://dx.doi.org/10.3390/s17020320.

Podrobný výpis o publikaci