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1. WO2022008782 - CHEMIRESISTIVE SENSOR FOR DETECTING NO2

Publication Number WO/2022/008782
Publication Date 13.01.2022
International Application No. PCT/ES2021/070499
International Filing Date 09.07.2021
IPC
G01N 27/04 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
02by investigating impedance
04by investigating resistance
C01B 32/182 2017.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
32Carbon; Compounds thereof
15Nanosized carbon materials
182Graphene
CPC
C01B 32/182
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
32Carbon; Compounds thereof
15Nano-sized carbon materials
182Graphene
G01N 27/04
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
02by investigating impedance
04by investigating resistance
G01N 27/125
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
02by investigating impedance
04by investigating resistance
12of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid ; , for detecting components in the fluid
125Composition of the body, e.g. the composition of its sensitive layer
Applicants
  • CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS [ES]/[ES]
  • UNIVERSIDAD COMPLUTENSE DE MADRID [ES]/[ES]
Inventors
  • HORRILLO GÜEMES, Mª Carmen
  • MATATAGUI CRUZ, Daniel
  • MARIN PALACIOS, Mª Pilar
  • NAVARRO PARDO, Elena
  • LÓPEZ SÁNCHEZ, Jesús
  • PEÑA MORENO, Álvaro
Agents
  • PONS ARIÑO, Ángel
Priority Data
P20203071210.07.2020ES
Publication Language Spanish (es)
Filing Language Spanish (ES)
Designated States
Title
(EN) CHEMIRESISTIVE SENSOR FOR DETECTING NO2
(ES) SENSOR QUÍMICO RESISTIVO PARA LA DETECCIÓN DE NO2
(FR) DÉTECTEUR CHIMIQUE RÉSISTIF POUR LA DÉTECTION DE NO2
Abstract
(EN) The present invention relates to a chemiresistive sensor with a low limit for detecting NO2 at ambient temperature, an active layer of said sensor comprising a few-layer graphene material. The response of the sensor is not altered by relative humidity, and the sensor also demonstrates very low interference with ammonia, allowing this interference to be disregarded in the measurements.
(ES) La presente invención se refiere a un sensor químico resistivo con un bajo límite de detección para la presencia de NO2 a temperatura ambiente que comprende un material como capa activa del sensor que es de grafeno de pocas capas atómicas, y cuya respuesta no se modifica por la presencia de humedad relativa ambiental y que, además, muestra muy baja interferencia con el amoniaco, lo que permite descartar su interferencia en las medidas.
(FR) La présente invention se rapporte à un détecteur chimique résistif ayant un seuil limite de détection de la présence de NO2 à température ambiante qui comprend un matériau avec une couche active du détecteur qui est en graphène à couches atomiques peu nombreuses, et dont la réponse n'est pas modifiée par la présence d'humidité relative environnementale et qui, de surcroit, démontre une faible interférence avec l'ammoniac, ce qui permet d'écarter son interférence dans les mesures.
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