Journal of Materials Science Materials in Electronics, Journal Year: 2024, Volume and Issue: 35(27)
Published: Sept. 1, 2024
Language: Английский
ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: 17(2), P. 3757 - 3771
Published: Jan. 6, 2025
Herein, porous SnO2 microspheres in a three-dimensional (3D) hierarchical architecture were successfully synthesized via facile hydrothermal route utilizing d-(+)-glucose and cetyltrimethylammonium bromide (CTAB), which act as reducing structure-directing agents, respectively. Controlled adjustment of the CTAB to glucose mole ratio, reaction temperature, time, calcination parameters all provided important clues toward optimizing final morphologies with exceptional structural stability reasonable monodispersity. Electron microscopy analysis revealed that formed self-assemblies numerous primary nanoparticles ∼3–8 nm coalesce together form nearly monodispersed ordered spherical structures sizes range 230–250 are appreciably porous. N2-sorption measurements further confirmed high degree porosity for these structures, an estimated BET surface area ∼35 m2 g–1. Taking advantage large area, ammonia (NH3) sensing capabilities spheres explored. The gas sensor exhibited notable response value (S) ∼20.72 when exposed 100 ppm NH3 gas, while operating at room temperature (∼27 °C), along impressively low detection limit ∼1 ppm. Based on comprehensive investigations, potential mechanism behind formation intricate factors make this material exhibit such excellent behavior is postulated. Overall, work provides possibly generic synthesis nanostructured materials holds promise development ultrasensitive temperature.
Language: Английский
Citations
1
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: July 2, 2024
Abstract Detection and discrimination of volatile organic compounds (VOCs) is important to provide a more realistic assessment their potential implication in complex environments medical diagnostics based on biomarkers. Herein, chemiresistive sensors are fabricated using stacked MoS 2 nanoflakes with defects exposed‐edge sites. The sensor found be extremely selective triethylamine (TEA) over polar, non‐polar VOCs atmospheric gases. exhibits sensitivity 1.72% ppm −1 , fast response/recovery (19 s/39 s) 100 TEA at room temperature, low limit detection (64 ppb), device reproducibility, humidity tolerance (RH 90%) stability tested up 60 days. kinetic analysis sensing curves reveals two discrete adsorption sites corresponding edge basal interaction, higher rate constant association dissociation for TEA. Density Functional Theory (DFT) studies support energy surface respect other amines. demonstrates recognition composition estimation capability binary mixture similar class Machine Learning driven 95% accuracy. ability discriminate amines paves the way advancement next‐generation devices field disease diagnosis.
Language: Английский
Citations
7
Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 985, P. 174070 - 174070
Published: March 5, 2024
Language: Английский
Citations
6
ACS Omega, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 17, 2025
The liquid cooling system for lithium iron phosphate battery modules usually faces the threat of coolant leakage, which would dramatically affect heat transfer performance, safety, and efficiency energy storage system. Herein, electrochemical sensing technology has been first employed to detect leakage. Specifically, ethanol is selected as additive reagent used main tested substance, sensors indirectly identify leakage by detecting leaked ethanol. In order overcome disadvantages pure SnO2 detection, including poor response, low gas selectivity, high operating temperature, microspherical-structured SnO2/In2O3/C composite designed synthesized using a tin-indium metal-organic framework (SnIn-MOF) precursor. fabricated sensor exhibits excellent gas-sensing performance. response could reach 30.1 at 280 °C, 1 mL with only 0.01% be detected sensor. Moreover, also satisfactory cycling repeatability stability. This outstanding performance attributed structural stability synergistic effects SnO2, In2O3, carbon. work innovatively proposed feasible method high-quality material detection in an system, great importance application potential field conversion.
Language: Английский
Citations
0
Nanomaterials, Journal Year: 2024, Volume and Issue: 14(13), P. 1097 - 1097
Published: June 26, 2024
Acetone is a biomarker found in the expired air of patients suffering from diabetes. Therefore, early and accurate detection its concentration breath such extremely important. We prepared Tin(IV) oxide (SnO2) nanospheres via hydrothermal treatment then decorated them with bimetallic PtAu nanoparticles (NPs) employing approach situ reduction. The topology, elemental composition, as well crystal structure materials were studied field emission scanning electron microscopy, transmission X-ray photoelectron spectroscopy, diffraction. findings revealed that PtAu-decorated SnO2 (PtAu/SnO2) effectively synthesized NPs evenly deposited onto surface nanospheres. Pure PtAu/SnO2 sensors prepared, their acetone gas sensitivity was explored. demonstrated comparison to pristine nanosphere sensors, based on displayed superior 0.166–100 ppm at 300 °C, providing low theoretical limit equal 158 ppm. Moreover, showed excellent response (Ra/Rg = 492.3 100 ppm), along fast recovery (14 s/13 s 10 good linearity correlation, repeatability, long-term stability, satisfactory selectivity °C. This improved because sensitization Pt NPs, chemical Au synergistic effects PtAu. have considerable potential for diagnosis screening
Language: Английский
Citations
3
ACS Applied Electronic Materials, Journal Year: 2025, Volume and Issue: unknown
Published: April 7, 2025
Language: Английский
Citations
0
Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(18), P. 5997 - 6009
Published: Jan. 1, 2024
A novel step-scheme NiO/CdS heterojunction nanoarray sensor was constructed in situ on a commercial alumina flat surface to detect triethylamine under visible light activation.
Language: Английский
Citations
3
Frontiers of Chemical Science and Engineering, Journal Year: 2024, Volume and Issue: 18(11)
Published: Aug. 10, 2024
Language: Английский
Citations
3
ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(8), P. 9051 - 9061
Published: April 16, 2024
Metal oxide–carbon nanocomposites offer an interesting platform for electrochemical sensing due to the synergistic effect of a highly active semiconducting surface and conducting carbon as supporting backbone. In this work, in situ synthesis SnO2 with reduced graphene oxide (rGO) led formation small, uniform nanoparticles, measuring 10–20 nm size, whereas inclusion multiwalled nanotubes (MWCNT) resulted (200) oriented nanoplatelets ∼200 nm. X-ray photoelectron spectroscopy (XPS) demonstrates chemical interaction between Sn C rather than physical adherence. The cyclic voltammograms (CVs) SnO2–rGO SnO2–MWCNT display high peak current density small ΔE comparison SnO2, signifying fast electron transfer, reversibility, enhanced electrochemically sites. Under optimized experimental conditions square wave anodic stripping voltammetry (SWASV), demonstrate sensitivity (3.9, 9.9, 45.5, 25.4 mA cm–1 ppb–1) low detection limit (in ppb) toward Cd2+, Pb2+, Cu2+, Hg2+, respectively. selectivity Cd2+ Pb2+ ions Hg2+ Cu2+ complex metal ion environment is encouraging probed by using functional theory (DFT). Additionally, artificial neural network (ANN)-based model justifies sensor's accuracy precision real-time, on-site heavy directly tap water.
Language: Английский
Citations
2
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 17, 2024
Abstract Volatile amines in breath act as biomarkers for kidney and liver diseases. Monitoring these amines, especially when present a mixture, provides insights into the metabolic state of body. This study focuses on differentiating volatile by systematically modulating conductivity sensitivity WSe 2 /Multiwalled Carbon Nanotubes composite‐based sensors. The fabricated chemiresistive sensor array demonstrates high selectivity, (7.67% ppm −1 ), fast response recovery kinetics (32 s/137 s), accurate discrimination among target even presence other VOCs (volatile organic compounds). operates at room temperature achieves theoretical limit detection (LOD) 387 ppt, 206, 157, 202 ppb triethylamine (TEA), dimethylamine (DMA), methylamine (MA), ammonia (NH 3 respectively, demonstrating its suitability sensing diagnostics. Machine learning (ML) analysis is employed to differentiate between mixtures with 94% accuracy. ability detect such low ppt levels underscores potential this e‐nose technology high‐performance applications early‐stage disease
Language: Английский
Citations
2