Author, as appears in the article.: Deokar, Geetanjali; Vancso, Peter; Arenal, Raul; Ravaux, Florent; Casanova-Chafer, Juan; Llobet, Eduard; Makarova, Anna; Vyalikh, Denis; Struzzi, Claudia; Lambin, Philippe; Jouiad, Mustapha; Colomer, Jean-Francois
Department: Enginyeria Electrònica, Elèctrica i Automàtica
URV's Author/s: Casanova Chafer, Juan / Llobet Valero, Eduard
Keywords: Nanoplates Mos2 Mos 2 Gas sensor Dft calculations Cnt
Abstract: Hexagonal-shaped nanoplates (HNPs) of MoS2 on vertically aligned carbon nanotubes (CNTs) over a patterned area (a circular area of 1 cm2 diameter) are produced by chemical vapor deposition technique. With an optimized initial Mo film thickness, a uniform coverage of MoS2 HNPs with a thickness around 20 nm is achieved. The results confirm that the CNT template plays an important role in the MoS2 HNPs growth. Each MoS2 HNP consists of abundant exposed edges, interesting for sensing and catalysis applications. High crystallinity and quality of the as-produced material are revealed by X-ray photoelectron and Raman spectroscopies. Furthermore, NO2 gas-sensing studies show better sensitivity and recovery for MoS2/CNT samples as compared to pristine CNTs. The detection of NO2 gas in a few tens of parts per million to a few hundreds of parts per billion range, at room temperature, is achieved. Density-functional theory calculation indicates that the exposed edges of MoS2 play a significant role in the NO2 sensing as compared to horizontally aligned MoS2 layers. The present report can promote the research toward the fabrication of efficient and reliable MoS2-based hybrid materials for toxic gas-sensing applications for air quality monitoring in various environments. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Thematic Areas: Química Mechanics of materials Mechanical engineering Materials science, multidisciplinary Materiais Interdisciplinar Chemistry, multidisciplinary Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: juan.casanova@urv.cat eduard.llobet@urv.cat
Author identifier: 0000-0001-6164-4342
Record's date: 2024-10-12
Papper version: info:eu-repo/semantics/submittedVersion
Link to the original source: https://onlinelibrary.wiley.com/doi/10.1002/admi.201700801
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Advanced Materials Interfaces. 4 (24): 1700801-
APA: Deokar, Geetanjali; Vancso, Peter; Arenal, Raul; Ravaux, Florent; Casanova-Chafer, Juan; Llobet, Eduard; Makarova, Anna; Vyalikh, Denis; Struzzi, Clau (2017). MoS2–Carbon Nanotube Hybrid Material Growth and Gas Sensing. Advanced Materials Interfaces, 4(24), 1700801-. DOI: 10.1002/admi.201700801
Article's DOI: 10.1002/admi.201700801
Entity: Universitat Rovira i Virgili
Journal publication year: 2017
Publication Type: Journal Publications