Journal of Materials Science Materials in Electronics, Год журнала: 2024, Номер 35(27)
Опубликована: Сен. 1, 2024
Язык: Английский
ACS Applied Materials & Interfaces, Год журнала: 2025, Номер 17(2), С. 3757 - 3771
Опубликована: Янв. 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.
Язык: Английский
Процитировано
2
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Июль 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.
Язык: Английский
Процитировано
8
Journal of Alloys and Compounds, Год журнала: 2024, Номер 985, С. 174070 - 174070
Опубликована: Март 5, 2024
Язык: Английский
Процитировано
6
Inorganic Chemistry Frontiers, Год журнала: 2024, Номер 11(18), С. 5997 - 6009
Опубликована: Янв. 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.
Язык: Английский
Процитировано
4
ACS Applied Nano Materials, Год журнала: 2024, Номер 7(8), С. 9051 - 9061
Опубликована: Апрель 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.
Язык: Английский
Процитировано
3
Nanomaterials, Год журнала: 2024, Номер 14(13), С. 1097 - 1097
Опубликована: Июнь 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
Язык: Английский
Процитировано
3
Frontiers of Chemical Science and Engineering, Год журнала: 2024, Номер 18(11)
Опубликована: Авг. 10, 2024
Язык: Английский
Процитировано
3
ACS Omega, Год журнала: 2025, Номер unknown
Опубликована: Фев. 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.
Язык: Английский
Процитировано
0
ACS Applied Electronic Materials, Год журнала: 2025, Номер unknown
Опубликована: Апрель 7, 2025
Язык: Английский
Процитировано
0
Ionics, Год журнала: 2025, Номер unknown
Опубликована: Май 17, 2025
Язык: Английский
Процитировано
0