A5046101796- Gas Sensing Nanomaterials and Sensors
- Advanced Chemical Sensor Technologies
- Heat Transfer and Optimization
- Analytical Chemistry and Sensors
- Heat Transfer Mechanisms
- Heat Transfer and Boiling Studies
- Ferroelectric and Piezoelectric Materials
- ZnO doping and properties
- Acoustic Wave Resonator Technologies
- Microwave Dielectric Ceramics Synthesis
- Air Quality Monitoring and Forecasting
- Nanofluid Flow and Heat Transfer
- Spectroscopy and Laser Applications
- Optical measurement and interference techniques
- Dielectric properties of ceramics
- Multiferroics and related materials
- Fluid Dynamics and Turbulent Flows
- Transition Metal Oxide Nanomaterials
- Experimental and Theoretical Physics Studies
- Earthquake Detection and Analysis
- Advanced Measurement and Metrology Techniques
- Lipid Membrane Structure and Behavior
- Fluid Dynamics and Thin Films
- Optical and Acousto-Optic Technologies
- Adhesion, Friction, and Surface Interactions
Barkatullah University
2020-2024
University of Delhi
2009-2024
Vellore Institute of Technology University
2024
Kanya Maha Vidyalaya
2023
Madhya Pradesh Bhoj Open University
2020
Indian Institute of Technology Bombay
2015-2020
American Society For Engineering Education
2018
National Institute of Technology Calicut
2009-2014
In the present study, rf sputtered SnO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> thin films (90 nm thick) loaded with clusters of ultra-thin (8 nm) metal catalysts (Pt, Ag, Ni, Pb, Al, Pd) are investigated for LPG detection. It is noted that film Pt catalyst exhibits enhanced response (∼ 750) to 200 ppm at a relatively low operating temperature (210°C) fast time 100s. Variation thickness in nanoscale range (2 20 seen significantly...
Abstract H 2 S gas sensing response characteristics of bare SnO thin films and heterostuctures with nanolayer (10 nm) Cu CuO are studied. Changes in resistance values, occurring integration nanolayers on is acquired real-time, compared. Rise sensor after introduction layer understood to enhance the characteristics. Formation space charge region between p-type n-type difference work-function values catalyst shown govern increased value starting resistance. Increase lowering presence due...
The application of digital interferometric techniques in the measurement forced convection compact channels is examined. Michelson Interferometry and Mach–Zehnder have been compared contrasted, terms suitability for temperature measurements. A wedge-fringe setting parallel to heated surface has utilized as basis fringe analysis, effective small dimension channels. interferometry was found provide a larger number data points visualization field, thus proving be better method passages. Heat...
Abstract The present work focuses on understanding the impact of varying thickness SnO 2 thin films its gas-sensing response. Systematic studies were conducted by X-ray diffraction (XRD) and atomic force microscopy (AFM) structural morphological properties films, which thereafter correlated for a deeper sensing phenomenon. found to be highly dependent film thickness. 90 nm exhibits maximum response 200 ppm liquefied petroleum gas (LPG). A rough microstructure surface-to-volume ratio favors...
Abstract RF sputtered SnO 2 thin films (90 nm thick) loaded with clusters of nanoscale (8 nm) metal catalysts (Pt, Ag, Ni, Pb, Al, Pd) are investigated for LPG detection. film Pt catalyst exhibits enhanced response (~ 7.5×10 ) to 200 ppm at a relatively low operating temperature (185 o C) fast time 100s. Variation thickness in the range (2 20 is seen significantly influence sensor characteristics. Enhanced performance observed 10 thick platinum that exhibited high 5 x 3 an temperature, 220°...
The thermal performance of wavy channels with different phase shifts (φ = 0° and 180°) introduced between the top bottom conducting walls was experimentally investigated using a typical Mach-Zehnder interferometer. experiments were performed on compact plane (with varying similar hydraulic diameters) in deionized water (Pr 6.13) for range Reynolds numbers (Re 350-1000). interferometric fringes recorded both infinite wedge fringe setting modes then used to qualitatively quantitatively analyze...
Nowadays e-nose is attracting the attention of many researchers due to its wide spread applications. The most important application falls in category where human beings cannot afford risk smelling toxic gases. Other applications are continuous monitoring pollutant and explosive gases, oil natural gas exploration, possible predictions volcanic eruptions, medical applications, etc. fast paced technology has helped develop sophisticated devices that have led miniaturization electronic nose with...
This research employs a state-of-the-art digital interferometric technique to investigate the temperature distribution within confined rectangular channel, with hydraulic diameter of 3 mm. The experimental setup incorporates an optical glass nanofluids (Aluminium oxide) as test fluid at 0.001% volume concentration. To induce controlled heating, heater filament is strategically placed along bottom wall channel. Simultaneously, T-type thermocouple carefully measure upper wall. Two distinct...