One-Dimensional Metal Oxide Nanostructures: H<sub>2</sub> Gas Sensors DOI Creative Commons
Gayan W. C. Kumarage, R.P. Wijesundera

˜The œjournal of desk research review and analysis., Journal Year: 2023, Volume and Issue: 1(1), P. 114 - 127

Published: Dec. 31, 2023

This article thoroughly analyses metal oxide nanostructures with one-dimensional properties and their utilisation in hydrogen (H2) gas detection. In recent years, there has been an increasing interest utilising the distinct characteristics of Metal Oxides (MOXs) Nanowires (NWs), Nanorods (NRs), Nanotubes (NTs) to create advanced H2 sensors exceptional performance. The examines ways synthesising these nanostructures, focusing on hydrothermal, solvothermal, electrospinning processes due cost-effectiveness ability produce high yields. discusses operation that utilize frameworks can perform effectively at both room temperature low temperatures. Moreover, research highlights need examine adjustable growth factors enhance efficiency nanostructures. Furthermore, this study comprehensively investigates effects decoration, functionalization, doping techniques boosting chemical physical are useful sensing functionality. proposes necessity for future investigate operational specifically setting hybrid nanocomposites. Thorough investigations like essential evaluating certain materials structure form system. review aims offer substantial insights will advancement high-performance sensor devices tailored detection gas. Additionally, incorporates a perspective illuminates expected trends field.

Language: Английский

Breaking Barriers: Innovative Fabrication Processes for Nanostructured Materials and Nano Devices DOI Creative Commons
Kaushal Kumar, Saurav Dixit,

Md. Zia ul Haq

et al.

E3S Web of Conferences, Journal Year: 2023, Volume and Issue: 430, P. 01197 - 01197

Published: Jan. 1, 2023

This study explores the world of nanostructured materials and new production procedures, revealing how they interact to break down obstacles in research. We uncover confluence between theoretical goals actual reality by investigating manufacturing processes. The links processes material characteristics, establishing groundwork for informed applications electronics, photonics, sensors, biology. empirical journey illuminates problems opportunities, prompting joint efforts push these frontiers forward. article is a testimony materials' transformational potential, challenging researchers dreamers redefine technological landscapes using their unique features inventive production.

Language: Английский

Citations

69

From Homogeneity to Heterogeneity: Designing Functionally Graded Materials for Advanced Engineering Applications DOI Creative Commons
Kaushal Kumar, Saurav Dixit,

Md. Zia ul Haq

et al.

E3S Web of Conferences, Journal Year: 2023, Volume and Issue: 430, P. 01198 - 01198

Published: Jan. 1, 2023

The research investigates Functionally Graded Materials (FGMs) and their transformational potential in modern engineering. FGMs, which exhibit progressive property fluctuations, call into question traditional material consistency. This study analyses the growth of FGMs importance solving complex engineering difficulties through historical analysis real-world case studies. dives design concepts, selection, manufacturing procedures, sophisticated characterisation methodologies that underpin FGM development from a methodological standpoint. Mechanical, thermal, electrical characteristics, combination with microstructural progression, offer thorough knowledge behaviour. implications for future advances are highlighted, focus on ability to rethink multifunctional performance. Among many attractive possibilities, issues scalability, characterisation, multidisciplinary cooperation need additional investigation. represent paradigm shift homogeneity targeted heterogeneity, echoing wider shifts philosophy influencing technological development.

Language: Английский

Citations

61

Study of Urbach energy and Kramers–Kronig on Mn and Zn doped NiFe2O4 ferrite nanopowder for the determination of structural and optical characteristics DOI Creative Commons

Nor Nadiah Binti Ahmad Nazari,

Mir Maqsood Golzan,

Kh. Mabhouti

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: March 17, 2024

Abstract M x Ni 1-x Fe 2 O 4 spinel ferrite (M = Mn, Zn, and 0, 0.05) has been successfully synthesized by co-precipitation technique with hydrazine hydrate reduction agent (instead of NaOH) Ethylene glycol surfactant. The XRD spectra the samples illustrated high crystallinity. structural characterization pure doped fcc NiFe were calculated Scherrer, Modified Williamson–Hall, SSP methods. In comparison several methods, Scherrer method is unreasonable W–H an acceptable range can calculate both < L > strain without restriction. specific surface area in Zn-doped increased, demonstrate increment adsorption properties structure. TEM images revealed shape grains spherical, cubic, irregular, a grain size 35–65 nm. Hysteresis loops magnetic behavior samples. From reflectance data, band gap energies estimated at 1.984, 1.954, 1.973 eV for un-doped, respectively (red shift). almost low value Urbach energy pure, Zn -doped indicates disorder, which approve crystallinity Direct (E g ), refractive index, extinction coefficient Kramers–Kronig linear optical evaluations. E K-K good agreement Kubelka–Munk function.

Language: Английский

Citations

20

Room-Temperature Gas Identification via Photochemically Activated p-type CuCrO2 Nanostructured Films Using Machine Learning DOI

Yan-Fong Lin,

Zi-Chun Tseng,

Wen–Jeng Hsueh

et al.

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Operating gas sensors at different temperatures is a common approach to improve selectivity, but it often compromises long-term stability and hinders real-time detection. In this study, we introduce photochemically activated p-type CuCrO2 nanostructured thin films, which generate distinct optical fingerprints under UV light intensities, enabling identification. The hexagonal-like nanostructure of the film increases surface area, significantly enhancing sensor's sensitivity selectivity. sensor demonstrated response approximately ∼3.6 for various concentrations N-propanol, NO2, NH3, ethanol, methanol, formaldehyde 20 mW/cm2 illumination, with times ranging from 50 200 s. By applying machine learning techniques, achieved classification accuracy exceeding 90%. Furthermore, regression analysis enhanced predictive concentrations, R2 values above 0.9. also exhibited excellent stability, only 7.4% degradation over 90 days consistent performance varying humidity. This work introduces strategy address selectivity challenges, making these suitable environmental monitoring industrial safety applications.

Language: Английский

Citations

5

Green, efficient, and controllable preparation of In2O3 uniformly modified MoS2 nanoflowers for methanol detection DOI
Li Yin, T. Leon Yu, Wantao Guo

et al.

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(5)

Published: Feb. 3, 2025

In2O3 uniformly modified MoS2 (In2O3/MoS2) nanoflowers were synthesized via a green, efficient, and controllable normal-pressure microwave-assisted route subsequent calcination process, using as substrates. The In2O3/MoS2 nanoflower is composed of extremely thin nanosheets, among which nanoparticles are attached to the nanosheets. Numerous p–n heterojunctions oxygen vacancies present on surfaces nanoflowers. composites exhibited high sensitivity selectivity, along with rapid response recovery methanol vapor at 240 °C. sensors exhibit rates toward methanol, particularly notable time only 15 s for 100 ppm methanol. also demonstrate excellent stability reproducibility, remarkable selectivity This research presents promising approach future design preparation composite detection.

Language: Английский

Citations

2

Nanostructured metal oxide heterojunctions for chemiresistive gas sensors DOI
Shuai Ma, Jinyong Xu

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(44), P. 23742 - 23771

Published: Jan. 1, 2023

Metal oxides have been extensively used in environmental monitoring, breath analysis, and food quality assessment. This review summarizes the effects of nanoscale heterojunctions on enhancing gas-sensing performance metal oxide devices.

Language: Английский

Citations

31

Electrospun biosensors for biomarker detection DOI Creative Commons

Jinli Zhou,

Junjie Zheng, Chenxiao Wang

et al.

Colloids and Interface Science Communications, Journal Year: 2024, Volume and Issue: 59, P. 100767 - 100767

Published: Jan. 30, 2024

Biosensors based on electrospun nanofibers have found extensive applications in the field of biomarker detection. Nanofibers, owing to their advantages such as porosity, high surface area, and significant loading capacity, play a crucial role immobilizing recognition elements, directly interacting with target analytes, enhancing antibody fixation positions, improving activity lifespan biomolecules. This, turn, enables sensitivity selectivity detection major disease biomarkers. This review begins by summarizing structure processing methods nanofiber biosensors, followed an overview physical, chemical detection, immobilization patterns Subsequently, brief retrospective analysis research progress is presented. Additionally, application biosensors various areas, including cancer, cardiovascular, neurological, metabolic, infectious diseases, discussed biomedical classifications. Finally, challenges faced are summarized, future directions for development highlighted

Language: Английский

Citations

8

Highpoints of carbon nanotube nanocomposite sensors—A review DOI Creative Commons
Ayesha Kausar, Ishaq Ahmad

e-Prime - Advances in Electrical Engineering Electronics and Energy, Journal Year: 2024, Volume and Issue: 7, P. 100419 - 100419

Published: Jan. 4, 2024

One dimensional hollow cylindrical carbon nanotube nanostructure has played essential role in nanotechnology advancements, since its discovery. In technical fields, been applied pristine as well nanocomposite form. Consequently, composited with various conductive and non-conducting matrices per desired end purposes. sensing technology, significant breakthroughs have observed regarding multifunctional nanocomposites. Common used this concern include conjugated polymers like poly(3,4-ethylenedioxythiophene): polystyrene sulfonic acid, polyaniline, etc. along some thermoplastics polyamide, polyurethane, these matrices, can form percolation network for electron or charge transportation may also develop interfacial interactions fine compatibility, stability, robustness. Sensing features of the ensuing nanocomposites depend upon their analyte (gases/ions, biomolecules, motion). to efficient gas sensors, strain biosensors. Performance sensors analyzed depending sensitivity, selectivity, detection limit, reproducibility, responses towards analytes.

Language: Английский

Citations

4

Advances in Early Warning of Thermal Runaway in Lithium‐Ion Battery Energy Storage Systems DOI Creative Commons
Duzhao Han, Juan Wang, Chengxian Yin

et al.

Advanced Sensor Research, Journal Year: 2025, Volume and Issue: unknown

Published: April 12, 2025

Abstract Thermal runaway is a critical safety concern in lithium‐ion battery energy storage systems. This review comprehensively analyzes state‐of‐the‐art sensing technologies and strategies for early detection warning of thermal events. The primary inducing factors, evolution mechanism, characteristic reactions at various stages are discussed. Detectable signals during runaway, including temperature, gas emissions, pressure, strain, acoustic signals, examined, along with advancements corresponding technologies. importance sensor implantation, collaboration, communication within cells highlighted, as well the development intelligent algorithms models. Miniaturized, integrated, arrayed sensors identified an inevitable trend advancing monitoring Intrinsically safe design future systems, considering distinct characteristics emerging technologies, crucial enhancing reliability. Future research shall focus on developing advanced real‐time, situ monitoring, establishing new paradigm diagnosis using algorithms, integrating models these accurate state estimation warnings. provides insights to guide strategies, facilitating widespread adoption renewable

Language: Английский

Citations

0

Hydrothermal synthesis of spherical nanoflower ZnO with highly sensitive isoprene sensing performance DOI
Baoqing Han, Congsi Wang,

Wanying Yang

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 180176 - 180176

Published: April 1, 2025

Language: Английский

Citations

0