Currently, semiconductor gas sensors are being actively studied and used in various fields, including ecology, industry, and medical diagnostics. One of the major challenges is to reduce their operating temperature to room temperature. To address this issue, sensor layers based on WO/WS nanostructures synthesized by the hydrothermal method have been proposed. In this paper, the morphology of the material's surface and its elemental composition were investigated, as well as the optical band gap. Additionally, changes in the resistance of the WO/WS sensor layers under the influence of alcohol vapors at room temperature were analyzed. The results showed that the layers exhibited a significant response, with short response and recovery times. The achieved response value to 1000 ppm of isopropanol was 1.25, with a response time of 13 s and a recovery time of 12 s. The response to 1000 ppm of ethanol was 1.35, and the response and recovery times were 20 s. This indicates that these sensor layers have promising potential for various applications.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11820213 | PMC |
| http://dx.doi.org/10.3390/molecules30030566 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Recent Advances for Cation-Anion Aggregates in Solid Polymer Electrolytes: Mechanism, Strategies, and Applications.
Small Methods
March 2025
School of Materials and Energy, Lanzhou University, Lanzhou, 730000, P. R. China.
Solid polymer electrolytes (SPEs) have garnered significant attention from both academic and industrial communities due to their high safety feature and high energy density in combination with lithium(Li) metal anode. Nevertheless, their practical applications remain constrained by the relatively low room-temperature ionic conductivity and interface issues. Anion-derived cation-anion aggregates (AGGs), derived from high-concentration liquid electrolytes, promote a stable solid-electrolyte interphase layer, which have gradually propelled their application in SPEs.
View Article and Find Full Text PDFProximity-Mediated Multi-Ferroelectric Coupling in Highly Strained EuO-Graphene Heterostructures.
Adv Mater
March 2025
Institut de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg, CNRS, UMR 7504, Strasbourg, F-67000, France.
2D van der Waals materials and their heterostructures are a fantastic playground to explore emergent phenomena arising from electronic quantum hybridization effects. In the last decade, the spin-dependant hybridization effect pushed this frontier further introducing the magnetic proximity effect as a promising tool for spintronic applications. Here the uncharted proximity-controlled magnetoelectric effect in EuO/graphene heterostructure is unveiled.
View Article and Find Full Text PDFDeep-blue emitting 9,10-bis(perfluorobenzyl)anthracene.
Beilstein J Org Chem
March 2025
Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA.
A new deep-blue emitting and highly fluorescent anthracene (ANTH) derivative containing perfluorobenzyl (Bn) groups, 9,10-ANTH(Bn), was synthesized in a single step reaction of ANTH or ANTH(Br) with BnI, using either a high-temperature Cu-/NaSO-promoted reaction or via a room-temperature photochemical reaction. Its structure was elucidated by NMR spectroscopy and single crystal X-ray diffractometry. The latter revealed no π-π interaction between neighboring ANTH cores.
View Article and Find Full Text PDFOrganocatalytic kinetic resolution of 1,5-dicarbonyl compounds through a retro-Michael reaction.
Beilstein J Org Chem
March 2025
Instituto Universitario CINQUIMA y Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Valladolid, Paseo Belén 7, 47011-Valladolid, Spain.
The pharmaceutical chemical industry has long used kinetic resolution to obtain high-value compounds. Organocatalysis has recently been added to this strategy, allowing for the resolution of racemic mixtures with low catalyst loadings and mild reaction conditions. This research focuses on the kinetic resolution of 1,5-dicarbonyl compounds using a retro-Michael reaction, co-catalyzed at room temperature with 20 mol % of the Jørgensen-Hayashi catalyst and PNBA.
View Article and Find Full Text PDFTailoring of physical properties of RF-sputtered ZnTe films: role of substrate temperature.
Beilstein J Nanotechnol
March 2025
Ion Beam Centre, Department of Physics, Kurukshetra University, Kurukshetra-136119, India.
In this study, zinc telluride (ZnTe) films were grown on quartz substrates at room temperature, 300 °C, 400 °C, 500 °C, and 600 °C using RF sputtering. The thickness of the films has been found to decrease from 940 nm at room temperature to 200 nm at 600 °C with increasing substrate temperature. The structural investigation using grazing incidence angle X-ray diffraction revealed that films deposited at room temperature are amorphous; those deposited at other substrate temperatures are polycrystalline with a cubic zincblende structure and a preferred orientation along the [111] direction.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!