Characterization of partially reduced graphene oxide as room temperature sensor for H2

Abstract

Reduced graphene oxide (RGO) was synthesized under H(2)/Ar treatment from 100 °C to 900 °C. RGO-300 shows excellent sensitivity to H(2) and a dual sensing mode was observed. The balance between the chemical adsorption capacity and electronic conductivity, and the dominance of either electrons or holes are the key factors.

Tunable Enhancement of a Graphene/Polyaniline/Poly(ethylene oxide) Composite Electrospun Nanofiber Gas Sensor

“…Partially reduced graphene oxide, however, is known to combine the benefits of GO and rGO [34,35]. In the literature, an optimal balance between chemical adsorption capacity provided by GO and electronic characteristics of rGO has been utilized for gas detection [27,28].…”

“…Researchers have taken advantage of the unique sensing properties of partially reduced graphene oxide (prGO) [27,28]. Neat GO readily interacts with gaseous analytes, thanks to the presence of oxygen-containing functional groups [29][30][31].…”

The sensitivity of sensor structures with oxide graphene exposed to selected gaseous atmospheres

“…A lot of attention is paid to development of the technology of hydrogen energetic fuel cells [3], which makes the monitoring of the concentration of hydrogen necessary. Hydrogen is an explosive gas (at a concentration of 4% to 75% in air [4,5]).…”

“…The properties of sensor structures depend (among others) on the gas sensing layers. Sensors based on carbon nanostructures as sensing layers are characterized by low working temperature [3]. In literature much attention is devoted to sensors with carbon nanotubes [9], graphene [10][11][12][13], graphene oxide and reduced graphene oxide [13][14][15].…”

Facile Synthesis of Cu/Cu2O Nanoparticles–Graphene Composites for Efficient Detection of NO2 at Room Temperature

“…[16][17][18] Particularly, reduced graphene oxide (reduced graphene oxide) have been considered as a promising gas sensing material for detection of gases at room temperature. [19][20][21][22][23][24] Gu et al found that In 2 O 3 -graphene nanocomposite exhibited high sensitivity to NO 2 at room temperature. 25 Deng et al synthesized reduced graphene oxide conjugated Cu 2 O nanowire mesocrystals which exhibit excellent NO 2 sensing performance.…”