Highly sensitive hydrogen gas sensor based on Al-doped SnO2/Polyaniline composite nanofibers
Hemlata J. Sharma, Bhaskar M. Bahirwar, Subhash B. Kondawar*
Department of Physics, Polymer Nanotech Laboratory, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur 440033, India
Adv. Mater. Lett., 2018, 9 (3), pp 182-187
DOI: 10.5185/amlett.2018.1591
Publication Date (Web): May 16, 2018
Copyright © 2019 VBRI Press
E-mail: sbkondawar@yahoo.co.in
Metal oxide nanofibers showed keen interest in chemical gas sensing due to their unique chemical and electrical properties at operating temperature more than 200 oC. Their sensitivity can be improved at low operating temperature closed to room temperature by using conducting polymers. In this paper, Al doped tin oxide/polyaniline composite nanofibers detected H2 molecules at room temperature. A simple versatile electrospinning technique is used for the fabrication of Aluminium (Al) doped (tin oxide) SnO2 nanofibers and polyaniline was encapsulated using chemical oxidative polymerization (COP) of aniline monomer using ammonium persulfate as redox initiator. The structure and morphology of Al-doped SnO2/PANI composite nanofibers were investigated by SEM-EDX, UV-VIS and XRD spectroscopy. Structural changes of SnO2/PANI crystal due to the incorporation of Al3+ ions have been explained. Al-doped SnO2/PANI composite nanofiber is very much selective towards H2 gas molecules in terms of high sensitivity, rapid response and recovery around room temperature compared to that of Al-doped SnO2. The present sensing mechanism systematically explained the existence of PN junction which is formed by p-type and n-type semiconductors in Al-doped SnO2/PANI hybrid composite material.
Al-doped SnO2 nanofibers, Polyaniline, Composites,p-n heterojunction, Hydrogen gas sensor.
Current Global Scenario of Electric Vehicles
Review on Detection of Phenol in Water
Investigating the Machinability of Metallic Matrix Composites Reinforced by Carbon Nanotubes: A Review
Photocatalytic ZnO based PES Membranes for AOP Water Treatments under UV and Sunlight
Plasma Activated Water as a Source of Nitrogen for Algae Growth
Digital Light Processing (DLP) 3D Printing of Polyethylene Glycol (PEG) Biopolymer, Commercially available Ultra-High and Tough (UHT) Resin and Maghemite (γ-Fe2O3) Nanoparticles Mixture for Tissue Engineering Scaffold Application
Fabrication of Nanoparticle Embedded Polymeric Microbeads as an Efficient Drug Delivery System
Micro/Nanostructured Papers from Bagasse Pulp Reinforced by Nanofibrillated Cellulose from different Agro-Waste Sources
Structural, Optical and Magnetic Properties of Pristine, (Mn, Al) co-doped ZnO Nanocrystallites Synthesized via co-Precipitation Method
Nanosecond Laser Surface Patterning of Ti6Al4V Bio-alloy for Improved Biological Performance
Synthesis of Cu2O/Ag Composite Nanocubes with Promising Photoluminescence and Photodegradation Activity over Methylene Blue Dye
Locally available Clays of Bangladesh as a Replacement of imported Clays for Ceramic Industries
Green Synthesis and Characterization of Silver Nanoparticles using Cassia auriculata Leaves Extract and Its Efficacy as A Potential Antibacterial and Cytotoxic Effect
Wearable Healthcare Devices
Nano-Graphene and Its Derivatives for Fabrication of Flexible Electronic Devices: A Quick Review
Natural Fibers as Viable Sources for the Development of Structural, Semi-Structural, and Technological Materials – A Review
Geometrical Characterization of Wire-and-Arc Additive Manufactured Steel Element
Plasma Activated Water Generation and its Application in Agriculture
Development of Advanced Electrode Materials on Porous Silicon for Micropower Formic Acid-Oxygen Fuel Cells
Water Management within Tragacanth gum-g-polyitaconic Acid Hydrogels
Synthesis and Characterization of Humic Acid-coated Fe3O4 Nanoparticles for Methylene Blue Adsorption Activity
Synthesis and characterization of thermally stable flame retardant thermoplastic polyphosphazenes
Synthesis of Rod-coil Molecules bearing Oligo-Phenylene Vinylene Motifs: Effect of PEO Chain Lengths on the Evolution of Nanostructures Morphology and their Photophysical Properties
Dielectric Properties of Cu based Polymeric Composites in X-band of Microwave Frequency
Critical Association Concentration of Dansyl-Poly (acrylic acid) Synthetized by Redox Polymerization Followed by an Esterification in Aqueous Solution: Spectrophotometric and Tensiometric Studies
Influence of Iron Doping on Structural and Optical Properties of Nickel Oxide Nanoparticles
Copyright ©2010-2019 VBRI Press
Full Article