Опубликована: Янв. 1, 2024
Язык: Английский
Sensors and Actuators B Chemical, Год журнала: 2024, Номер 415, С. 135998 - 135998
Опубликована: Май 17, 2024
Язык: Английский
Процитировано
17
ACS Sensors, Год журнала: 2024, Номер 9(8), С. 3994 - 4006
Опубликована: Июль 23, 2024
Detecting and distinguishing between hazardous gases with similar odors by using conventional sensor technology for safeguarding human health ensuring food safety are significant challenges. Bulky, costly, power-hungry devices, such as that used gas chromatography-mass spectrometry (GC-MS), widely employed sensing. Using a single chemiresistive semiconductor or electric nose (e-nose) to achieve this objective is difficult, mainly because of its selectivity issue. Thus, there need develop new materials tunable versatile sensing characteristics. Phase engineering two-dimensional better utilize their physiochemical properties has attracted considerable attention. Here, we show MoSe
Язык: Английский
Процитировано
14
Journal of environmental chemical engineering, Год журнала: 2025, Номер 13(1), С. 115294 - 115294
Опубликована: Янв. 5, 2025
Язык: Английский
Процитировано
2
Polymer Composites, Год журнала: 2025, Номер unknown
Опубликована: Март 14, 2025
Abstract Polymer‐based piezoelectric nanocomposites, enhanced with nanofillers, offer a scalable solution for efficient energy harvesting. In this work, we incorporated acid‐functionalized multi‐walled carbon nanotubes (MWCNTs‐COOH) in poly(vinylidene fluoride) (PVDF) matrix to understand the influence of MWCNTs‐COOH enhancing overall structural, morphological, dielectric, and properties PVDF/MWCNTs‐COOH nanocomposites. The nanocomposites were prepared by melt‐mixing followed casting, concentration was varied from 0 3 wt%. served as heterogeneous nucleating agent form polar crystalline polymorph PVDF. incorporation 1.5 wt% led highest phase content ~ 89% owing uniform dispersion PVDF matrix. Similarly, coefficient (d 33 ) 49.2 pm/V observed nanocomposite MWCNTs‐COOH. fabricated optimized nanogenerator exhibited response sensitivity 11.4 V/N an open circuit voltage 59.2 V, current μA, maximum power density 19.8 μW/cm 2 . device found exhibit high durability, which confirmed performing durability test months consecutively. can be used sensor well harvesting various bio‐mechanical motions. Highlights fabricate nanogenerators. Higher extents interfacial interactions performance. Nanocomposite showed 89%. d value pm/V. Nanogenerator utilized motion harvester.
Язык: Английский
Процитировано
1
ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(13), С. 16687 - 16698
Опубликована: Март 22, 2024
Industrial emissions, environmental monitoring, and medical fields have put forward huge demands for high-performance low power consumption sensors. Two-dimensional quasicrystal (2D QC) nanosheets of metallic multicomponent Al70Co10Fe5Ni10Cu5 emerged as a promising material gas sensors due to their excellent catalytic electronic properties. Herein, we demonstrate highly sensitive selective NO2 developed by low-cost scalable fabrication techniques using 2D QC α-Fe2O3 nanoparticles. The sensitivity (ΔR/R%) the optimal amount nanosheet-loaded sensor was 32%, which is significantly larger about 3.5 times than bare 1 ppm at 150 °C operating temperature. exhibited p-type conduction, resistance reduced when exposed NO2, an oxidizing gas. enhanced sensing characteristics are result formation nanoheterojunctions between α-Fe2O3, improved charge transport provided large signal. In addition, heterojunction demonstrated selectivity over other reducing gases. Furthermore, density functional theory calculation examines adsorption energy transfer molecules on α-Fe2O3(110) QC/α-Fe2O3(110) heterostructure surfaces, coincides well with experimental results.
Язык: Английский
Процитировано
6
Sensors and Actuators B Chemical, Год журнала: 2025, Номер unknown, С. 137862 - 137862
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
0
Sensors and Actuators A Physical, Год журнала: 2025, Номер unknown, С. 116655 - 116655
Опубликована: Май 1, 2025
Язык: Английский
Процитировано
0
Talanta, Год журнала: 2025, Номер 295, С. 128378 - 128378
Опубликована: Май 24, 2025
Язык: Английский
Процитировано
0
Journal of Applied Physics, Год журнала: 2024, Номер 136(7)
Опубликована: Авг. 16, 2024
Low power, high sensitivity, and selectivity chemiresistive gas sensors are in urgent demand for hydrogen sulfide (H2S) detection to protect human health the world's ecosystem. In this study, multiwalled carbon nanotubes (MWCNTs) copper oxide (CuO) submicrometer size particles’ compositions were utilized fabricate low-temperature H2S sensors, which prepared using a screen-printing technique on inter-digited patterned SiO2/Si substrates. The heterostructure of MWCNT@CuO was confirmed through high-resolution transmission electron microscopy analysis x-ray diffraction patterns. photoelectron spectroscopy reveals chemical states, binding energies, oxygen vacancy (Ov). Brunauer–Emmett–Teller nitrogen physisorption conducted samples analyze sensor surface areas pore distribution. as-fabricated shows relative response (ΔR/R%) 73% toward 10 ppm at 50 °C temperature selective manner, is 1.6 times higher than that devices based bare CuO. interface modifies morphology also constructs p–p heterojunction. This leads reforming band structure results low resistance matrix, as well chemisorbed content. use metal semiconductors with MWCNTs offers promising approach development high-performance energy-efficient.
Язык: Английский
Процитировано
2
Опубликована: Янв. 1, 2024
Язык: Английский
Процитировано
0