Autor/s de la URV: | Alagh, Aanchal / Annanouch, Fatima Ezahra / Llobet Valero, Eduard |
Autor segons l'article: | Alagh, Aanchal; Annanouch, Fatima Ezahra; Umek, Polona; Bittencourt, Carla; Colomer, Jean Francois; Llobet, Eduard |
Adreça de correu electrònic de l'autor: | fatimaezahra.annanouch@urv.cat aanchal.alagh@estudiants.urv.cat aanchal.alagh@estudiants.urv.cat eduard.llobet@urv.cat |
Identificador de l'autor: | 0000-0003-1533-6482 0000-0003-2466-8219 0000-0003-2466-8219 0000-0001-6164-4342 |
Any de publicació de la revista: | 2021 |
Tipus de publicació: | Journal Publications |
Referència de l'ítem segons les normes APA: | Alagh, Aanchal; Annanouch, Fatima Ezahra; Umek, Polona; Bittencourt, Carla; Colomer, Jean Francois; Llobet, Eduard (2021). An Ultrasensitive Room-Temperature H2S Gas Sensor Based on 3D Assembly of Cu2O Decorated WS2 Nanomaterial. Ieee Sensors Journal, 21(19), 21212-21220. DOI: 10.1109/JSEN.2021.3103925 |
Referència a l'article segons font original: | Ieee Sensors Journal. 21 (19): 21212-21220 |
Resum: | Herein, we report for the first time on the fabrication of a hybrid material consisting of Cu2O nanoparticles-decorated multilayered tungsten disulfide nanostructures and demonstrate their remarkable gas sensing characteristics towards hydrogen sulfide gas. In the first step, a continuous film of WS2 was deposited directly on commercial alumina substrate by adopting a facile route combining aerosol-assisted chemical vapor deposition with H-2 free atmospheric pressure CVD technique. For functionalization an additional step of synthesis was added where copper oxide nanoparticles were grown and deposited directly over as-grown tungsten disulfide at low temperature (i.e., 150 degrees C) using a simple and cost-effective technique. The morphological, structural and chemical characteristics were investigated using FESEM, TEM, and EDX spectroscopy. The gas-sensing studies performed shows that this hybrid nanomaterial has excellent sensitivity towards hydrogen sulfide (11-times increase in response compared to that of pristine WS2 sensor) at moderate temperature (150 degrees C). Additionally, functionalization of pristine WS2 sensor with Cu2O nanoparticles further enhances the gas sensing performance towards the targeted gas even at room temperature (13-times increase in response compared with that of pristine WS2 sensor). Moreover, results obtained from humidity cross-sensitivity of Cu2O-WS2 sensor indicates superior gas sensing response (with a negligible decrease in response) as compared to pristine WS2 sensor, when ambient humidity is increased to 50%, which is rarely found in metal oxide-based sensors. This study could add a significant research value in the gas sensor domain. |
DOI de l'article: | 10.1109/JSEN.2021.3103925 |
Enllaç font original: | https://ieeexplore.ieee.org/document/9511472 |
Versió de l'article dipositat: | info:eu-repo/semantics/acceptedVersion |
Accès a la llicència d'ús: | https://creativecommons.org/licenses/by/3.0/es/ |
Departament: | Enginyeria Electrònica, Elèctrica i Automàtica |
URL Document de llicència: | https://repositori.urv.cat/ca/proteccio-de-dades/ |
Àrees temàtiques: | Química Physics, applied Nutrição Medicina veterinaria Medicina ii Materiais Matemática / probabilidade e estatística Interdisciplinar Instruments & instrumentation Instrumentation Engineering, electrical & electronic Engenharias iv Engenharias iii Engenharias ii Engenharias i Electrical and electronic engineering Ciências biológicas ii Ciências biológicas i Ciência da computação Biotecnología Astronomia / física |
Paraules clau: | Ws? Ws2 Tungsten compounds Tmds Temperature Synthesis (chemical) Sulfur determination Sulfur compounds Sensing properties Oxide minerals Nanostructured materials Nanoparticles Moderate temperature Metals Hydrogen sulfide gas Hydrogen sulfide Hybrid materials H?s H2s Gases Gas sensor Gas sensing response Gas sensing electrodes Gas sensing characteristics Gas detectors Cu?o Cu2o Cost effectiveness Copper oxides Copper oxide nanoparticles Chemical vapor deposition Chemical detection Chemical characteristic Atmospheric pressure cvd Atmospheric pressure Atmospheric humidity Apcvd Aluminum oxide Alumina Aerosol-assisted chemical vapor depositions 2d |
Programa de finançament: | H2020- MSCA-RISE-2018 |
Acció del programa de finançament: | SMART SENSING FOR RAPID RESPONSE TO CHEMICAL THREATS ON SOFT TARGETS |
Acrònim: | SENSOFT |
Codi de projecte: | Project Nr. 823895 |
Entitat: | Universitat Rovira i Virgili |
Data d'alta del registre: | 2024-07-27 |
Descripció: | Herein, we report for the first time on the fabrication of a hybrid material consisting of Cu2O nanoparticles-decorated multilayered tungsten disulfide nanostructures and demonstrate their remarkable gas sensing characteristics towards hydrogen sulfide gas. In the first step, a continuous film of WS2 was deposited directly on commercial alumina substrate by adopting a facile route combining aerosol-assisted chemical vapor deposition with H-2 free atmospheric pressure CVD technique. For functionalization an additional step of synthesis was added where copper oxide nanoparticles were grown and deposited directly over as-grown tungsten disulfide at low temperature (i.e., 150 degrees C) using a simple and cost-effective technique. The morphological, structural and chemical characteristics were investigated using FESEM, TEM, and EDX spectroscopy. The gas-sensing studies performed shows that this hybrid nanomaterial has excellent sensitivity towards hydrogen sulfide (11-times increase in response compared to that of pristine WS2 sensor) at moderate temperature (150 degrees C). Additionally, functionalization of pristine WS2 sensor with Cu2O nanoparticles further enhances the gas sensing performance towards the targeted gas even at room temperature (13-times increase in response compared with that of pristine WS2 sensor). Moreover, results obtained from humidity cross-sensitivity of Cu2O-WS2 sensor indicates superior gas sensing response (with a negligible decrease in response) as compared to pristine WS2 sensor, when ambient humidity is increased to 50%, which is rarely found in metal oxide-based sensors. This study could add a significant research value in the gas sensor domain. |
Tipus: | Journal Publications |
Coautor: | Universitat Rovira i Virgili |
Títol: | An Ultrasensitive Room-Temperature H2S Gas Sensor Based on 3D Assembly of Cu2O Decorated WS2 Nanomaterial |
Matèria: | Electrical and Electronic Engineering,Engineering, Electrical & Electronic,Instrumentation,Instruments & Instrumentation,Physics, Applied Ws? Ws2 Tungsten compounds Tmds Temperature Synthesis (chemical) Sulfur determination Sulfur compounds Sensing properties Oxide minerals Nanostructured materials Nanoparticles Moderate temperature Metals Hydrogen sulfide gas Hydrogen sulfide Hybrid materials H?s H2s Gases Gas sensor Gas sensing response Gas sensing electrodes Gas sensing characteristics Gas detectors Cu?o Cu2o Cost effectiveness Copper oxides Copper oxide nanoparticles Chemical vapor deposition Chemical detection Chemical characteristic Atmospheric pressure cvd Atmospheric pressure Atmospheric humidity Apcvd Aluminum oxide Alumina Aerosol-assisted chemical vapor depositions 2d Química Physics, applied Nutrição Medicina veterinaria Medicina ii Materiais Matemática / probabilidade e estatística Interdisciplinar Instruments & instrumentation Instrumentation Engineering, electrical & electronic Engenharias iv Engenharias iii Engenharias ii Engenharias i Electrical and electronic engineering Ciências biológicas ii Ciências biológicas i Ciência da computação Biotecnología Astronomia / física |
Data: | 2021 |
Autor: | Alagh, Aanchal Annanouch, Fatima Ezahra Umek, Polona Bittencourt, Carla Colomer, Jean Francois Llobet, Eduard |
Drets: | info:eu-repo/semantics/openAccess |
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