RT Journal Article
T1 Ultrasensitive NO_(2 )gas sensor with insignificant NH3-interference based on a few-layered mesoporous graphene
A1 Matatagui Cruz, Daniel
A1 López Sánchez, Jesús
A1 Peña Moreno, Álvaro
A1 Serrano, Aída
A1 Del Campo, Adolfo
A1 Rodríguez De La Fuente, Óscar
A1 Carmona Tejero, Noemí
A1 Navarro Palma, Elena
A1 Marín Palacios, María Pilar
A1 Horrillo, María del Carmen
AB Few-layered mesoporous graphene (FLMG) is employed as a sensing material to develop an innovative and high-sensitivity room temperature NO_(2) sensor through a simple manufacturing process. For this purpose, sensing material is optimized at 100 min by a high-energy milling process where natural graphite is used as a precursor: it is an inexpensive, sustainable and suitable active material. The large number of defects created and the enhanced degree of mesoporosity produced during the milling process determine the physical principles of operation of the designed device. NO_(2) gas sensing tests reveal an improved and selective performance with a change in resistance of ∼16 % at 0.5 ppm under ultraviolet photo-activation, establishing a detection limit around ∼25 ppb. Interestingly, the response of the developed sensor to humidity is independent in the measured range (0–33 % relative humidity at 25 °C) and the dependency to the presence of NH3 is rather poor as well (∼1.5 % at 50 ppm).
PB Elsevier
YR 2021
FD 2021
LK https://hdl.handle.net/20.500.14352/91643
UL https://hdl.handle.net/20.500.14352/91643
LA eng
NO Matatagui, D., López-Sánchez, J., Peña, A., Serrano, A., Del Campo, A., De La Fuente, O.R., Carmona, N., Navarro, E., Marín, P., Del Carmen Horrillo, M.: Ultrasensitive NO2 gas sensor with insignificant NH3-interference based on a few-layered mesoporous graphene. Sensors and Actuators B: Chemical. 335, 129657 (2021). https://doi.org/10.1016/j.snb.2021.129657
NO Ministerio de Ciencia, Innovación y Universidades (España)
NO Agencia Estatal de Investigación (España)
NO European Commission
NO Comunidad de Madrid
DS Docta Complutense
RD 26 abr 2025