Author, as appears in the article.: Roso, Sergio; Degler, David; Llobet, Eduard; Barsan, Nicolae; Urakawa, Atsushi
Department: Enginyeria Electrònica, Elèctrica i Automàtica
URV's Author/s: Llobet Valero, Eduard
Keywords: Temperature dependent Spectrum analysis Operating temperature No2 No 2 Nitrogen oxides Multivariate spectral analysis Multivariate analysis Multivariant analysis Multi variate analysis Indium compounds In2o3 In o 2 3 Hydroxylated surfaces Gas sensor Gas sensing mechanism Gas sensing electrodes Gas detectors Drifts Chemical sensors Chemical detection no2 in2o3 gas sensor drifts
Abstract: The surface species responsible for NO2 gas sensing over indium oxide was studied by operando DRIFTS coupled to a multivariate spectral analysis. It revealed the important roles of surface nitrites on the temperature-dependent gas sensing mechanism and the interaction of such nitrites with surface hydroxyls. A highly hydroxylated surface with high concentration of surface adsorbed H2O is beneficial to enhance the concentration of adsorbed NO2, present as nitrites, thus explaining superior sensing response at lower operating temperatures. © 2017 American Chemical Society.
Thematic Areas: Process chemistry and technology Nanoscience & nanotechnology Instrumentation Fluid flow and transfer processes Engenharias iii Chemistry, multidisciplinary Chemistry, analytical Bioengineering
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: eduard.llobet@urv.cat
Author identifier: 0000-0001-6164-4342
Record's date: 2024-10-12
Papper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://pubs.acs.org/doi/10.1021/acssensors.7b00504
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Acs Sensors. 2 (9): 1272-1277
APA: Roso, Sergio; Degler, David; Llobet, Eduard; Barsan, Nicolae; Urakawa, Atsushi (2017). Temperature-Dependent NO2 Sensing Mechanisms over Indium Oxide. Acs Sensors, 2(9), 1272-1277. DOI: 10.1021/acssensors.7b00504
Article's DOI: 10.1021/acssensors.7b00504
Entity: Universitat Rovira i Virgili
Journal publication year: 2017
Publication Type: Journal Publications