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High-Yield WS2 Synthesis through Sulfurization in Custom-Modified Atmospheric Pressure Chemical Vapor Deposition Reactor, Paving the Way for Selective NH3 Vapor Detection

  • Dades identificatives

    Identificador: imarina:9380066
    Autors:
    Malik, Shuja BashirAnnanouch, Fatima EzahraD'Souza, RansellBittencourt, CarlaTodorovic, MilicaLlobet, Eduard
    Resum:
    Nanostructured transition metal dichalcogenides have garnered significant research interest for physical and chemical sensing applications due to their unique crystal structure and large effective surface area. However, the high-yield synthesis of these materials on different substrates and in nanostructured films remains a challenge that hinders their real-world applications. In this work, we demonstrate the synthesis of two-dimensional (2D) tungsten disulfide (WS2) sheets on a hundred-milligram scale by sulfurization of tungsten trioxide (WO3) powder in an atmospheric pressure chemical vapor deposition reactor. The as-synthesized WS2 powders can be formulated into inks and deposited on a broad range of substrates using techniques like screen or inkjet printing, spin-coating, drop-casting, or airbrushing. Structural, morphological, and chemical composition analysis confirm the successful synthesis of edge-enriched WS2 sheets. The sensing performance of the WS2 films prepared with the synthesized 2D material was evaluated for ammonia (NH3) detection at different operating temperatures. The results reveal exceptional gas sensing responses, with the sensors showing a 100% response toward 5 ppm of NH3 at 150 degrees C. The sensor detection limit was experimentally verified to be below 1 ppm of NH3 at 150 degrees C. Selectivity tests demonstrated the high selectivity of the edge-enriched WS2 films toward NH3 in the presence of interfering gases like CO, benzene, H-2, and NO2. Furthermore, the sensors displayed remarkable stability against high levels of humidity, with only a slight decrease in response from 100% in dry air to 93% in humid environments. Density functional theory and Bayesian optimization simulations were performed, and the theoretical results agree with the
  • Altres:

    Autor segons l'article: Malik, Shuja Bashir; Annanouch, Fatima Ezahra; D'Souza, Ransell; Bittencourt, Carla; Todorovic, Milica; Llobet, Eduard
    Departament: Enginyeria Electrònica, Elèctrica i Automàtica
    Autor/s de la URV: Annanouch, Fatima Ezahra / Llobet Valero, Eduard / Malik, Shuja Bashir
    Paraules clau: Wse2 Ws2 Ws 2 Wo Transition-metal dichalcogenides Tmds Sulfurization Quality monolayer ws2 Performance Nh3 Nh 3 Growth Gas sensor Films Dft Df Apcvd Ammonia 2d materials
    Resum: Nanostructured transition metal dichalcogenides have garnered significant research interest for physical and chemical sensing applications due to their unique crystal structure and large effective surface area. However, the high-yield synthesis of these materials on different substrates and in nanostructured films remains a challenge that hinders their real-world applications. In this work, we demonstrate the synthesis of two-dimensional (2D) tungsten disulfide (WS2) sheets on a hundred-milligram scale by sulfurization of tungsten trioxide (WO3) powder in an atmospheric pressure chemical vapor deposition reactor. The as-synthesized WS2 powders can be formulated into inks and deposited on a broad range of substrates using techniques like screen or inkjet printing, spin-coating, drop-casting, or airbrushing. Structural, morphological, and chemical composition analysis confirm the successful synthesis of edge-enriched WS2 sheets. The sensing performance of the WS2 films prepared with the synthesized 2D material was evaluated for ammonia (NH3) detection at different operating temperatures. The results reveal exceptional gas sensing responses, with the sensors showing a 100% response toward 5 ppm of NH3 at 150 degrees C. The sensor detection limit was experimentally verified to be below 1 ppm of NH3 at 150 degrees C. Selectivity tests demonstrated the high selectivity of the edge-enriched WS2 films toward NH3 in the presence of interfering gases like CO, benzene, H-2, and NO2. Furthermore, the sensors displayed remarkable stability against high levels of humidity, with only a slight decrease in response from 100% in dry air to 93% in humid environments. Density functional theory and Bayesian optimization simulations were performed, and the theoretical results agree with the experimental findings, revealing that the interaction between gas molecules and WS2 is primarily based on physisorption.
    Àrees temàtiques: Química Nanoscience and nanotechnology Nanoscience & nanotechnology Medicine (miscellaneous) Medicina veterinaria Medicina ii Medicina i Materials science, multidisciplinary Materials science (miscellaneous) Materials science (all) Materiais Interdisciplinar General materials science Farmacia Engenharias iv Engenharias iii Engenharias ii Economia Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Biotecnología Biodiversidade Astronomia / física Arquitetura, urbanismo e design
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    Adreça de correu electrònic de l'autor: fatimaezahra.annanouch@urv.cat shujabashir.malik@urv.cat eduard.llobet@urv.cat
    Identificador de l'autor: 0000-0003-1533-6482 0000-0001-6164-4342
    Data d'alta del registre: 2024-10-12
    Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
    Enllaç font original: https://pubs.acs.org/doi/10.1021/acsami.4c10077
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referència a l'article segons font original: Acs Applied Materials & Interfaces. 16 (36): 48585-48597
    Referència de l'ítem segons les normes APA: Malik, Shuja Bashir; Annanouch, Fatima Ezahra; D'Souza, Ransell; Bittencourt, Carla; Todorovic, Milica; Llobet, Eduard (2024). High-Yield WS2 Synthesis through Sulfurization in Custom-Modified Atmospheric Pressure Chemical Vapor Deposition Reactor, Paving the Way for Selective NH3 Vapor Detection. Acs Applied Materials & Interfaces, 16(36), 48585-48597. DOI: 10.1021/acsami.4c10077
    DOI de l'article: 10.1021/acsami.4c10077
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2024
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Materials Science (Miscellaneous),Materials Science, Multidisciplinary,Medicine (Miscellaneous),Nanoscience & Nanotechnology,Nanoscience and Nanotechnology
    Wse2
    Ws2
    Ws 2
    Wo
    Transition-metal dichalcogenides
    Tmds
    Sulfurization
    Quality monolayer ws2
    Performance
    Nh3
    Nh 3
    Growth
    Gas sensor
    Films
    Dft
    Df
    Apcvd
    Ammonia
    2d materials
    Química
    Nanoscience and nanotechnology
    Nanoscience & nanotechnology
    Medicine (miscellaneous)
    Medicina veterinaria
    Medicina ii
    Medicina i
    Materials science, multidisciplinary
    Materials science (miscellaneous)
    Materials science (all)
    Materiais
    Interdisciplinar
    General materials science
    Farmacia
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Economia
    Ciências biológicas iii
    Ciências biológicas ii
    Ciências biológicas i
    Ciências ambientais
    Ciências agrárias i
    Biotecnología
    Biodiversidade
    Astronomia / física
    Arquitetura, urbanismo e design
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