Biswajit MandalNational Institute of Technology Calicut | NITC · Department of Physics
Biswajit Mandal
PhD
Gas/VOC sensors, Electrochemical Sensors, Energy storage devices
About
40
Publications
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Introduction
Biswajit Mandal completed his PhD Research at the Department of Electrical Engineering, Indian Institute of Technology Indore. Biswajit does research in metal oxide nanometerials based Gas sensors, electrochemical sensors, electrochemical energy storage system.
Publications
Publications (40)
We report a study to improve the ternary oxide Ni3V2O8′s electrochemical energy storage capabilities through correct surfactanization during hydrothermal synthesis. In this study, Ni3V2O8 nanomaterials were synthesized in three different forms: one with a cationic surfactant (CTAB), one with an anionic surfactant (SLS), and one without any surfacta...
This research focuses on employing hydrothermal method to synthesize nickel vanadate (Ni3V2O8) nanomaterial for energy storage applications using nickel nitrate hexahydrate and sodium metavanadate as raw material. Use of surfactant during hydrothermal synthesis process plays a very important role in defining morphology as well as electrical/optical...
The use of surfactant during synthesis process is critical in determining morphology as well as properties of nanomaterials. In this line, this work reports surfactant assisted synthesis of Co(OH)2 nanomaterials and their characterizations for energy storage applications. Cobalt hydroxide nanoparticles are synthesized using chemical co-precipitatio...
In this work, we are reporting the impact of ligand on the synthesis and electrochemical properties of nickel manganese oxide nanoparticles. We have prepared bare and cetyltrimethylammonium bromide (CTAB) coated nickel manganese oxide nanoparticles using the hydrothermal method at 120 °C. The comparative analysis of these two samples showed that th...
The addition of surfactant during hydrothermal growth greatly affect the surface morphology of nanostructures [1]. Here, to see the impact of surfactant in the hydrothermal growth of WO 3 nanostructures, we have used Cetyl trimethyl ammonium bromide (CTAB) and Sodium chloride (NaCl) as surfactants during WO 3 nanostructure formation. Flower-like WO...
Drop-casting is a simple deposition technique where a slurry-like solution of nanomaterial is coated on small substrates, which are then allowed to dry under controlled temperature and pressure ambience. The present work focuses on the tyrosine functionalized benzene-tri-carboxyamide (Tyr-BTC) and ZnO composite based sensor deposited
using drop-ca...
A hydrazide based covalent organic polymer (COP) having pyridine functionalities has been synthesized and used to fabricate an efficient chemosensor for the detection of gaseous H2S at 25 °C through proton conduction process. Gas sensing behavior of the COP has been measured in a dynamic flow through resistance measurement system. The COP fabricate...
Present study explores on the development of low molecular weight π-conjugated organic amine and metal oxide based nanohybrids for room temperature carbon dioxide (CO 2 ) sensing application rather than using conventional polymer of organo-amines [1-4]. In this study, in-situ growth of naphthalene based π-conjugated amine (NBA) and zinc oxide (ZnO)...
In this article, the effect of the SiO
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layer is demonstrated on dual ion beam sputtered yttria-based memristive devices for the first time. It is found that the effect of thickening of SiO
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A chemiresistive carbon monoxide (CO) gas sensor comprising of organo-di-benzoic acidified zinc oxide (ODBA-ZnO) nanohybrid material is reported. The ODBA-ZnO hybrid material is prepared via single-pot hydrothermal method. The electrical resistance of the drop-casted ODBA-ZnO film on interdigitated electrodes increases noticeably upon exposure to C...
The patent is about carbon monoxide sensor using novel hybrid material.
The development of a new type of hybrid material comprising naphthalene based π-conjugated amine (NBA) and zinc oxide (ZnO) nanohybrid, grown in-situ on polydimethylsiloxane (PDMS) flexible substrate, is explored. The morphology of the nanohybrids is controlled by optimizing growth time of the hydrothermal reaction. The CO2 sensor utilizing NBA-ZnO...
It is believed that contacts play an important role in resistive switch-
ing [1][3]. In 2018, we have demonstrated that Y2O3 (yttria) based memristive
system are potential candidate for synaptic learning applications [4]. However, un-
derstanding of working mechanism of yttria based memristive system requires an
experimental approach. In this work,...
The effect of the statistical distribution of the grain surface area on the variations of switching voltages (set/reset or both) has been discussed in this report. Dual ion beam sputtered yttria-based memristive devices show unipolar and bipolar resistive switching (RS) for amorphous thin film and polycrystalline thin film devices, respectively. Fi...
Alteration of the architecture of molybdenum oxide nanostructure from nanobelts to nanofibers has been achieved by applying frequency-dependent pulsed temperature during hydrothermal growth. The nanostructures was characterized by field emission scanning electron microscopy, X-ray diffraction, high-resolution transmission electron microscopy, selec...
We have made an effort to demonstrate a simple and facile methodology i.e. electrodeposition for synthesizing oligo(p-phenylenevinylene(OPV) and Zn-OPV nanocomposites films. On combining the benefits of the two materials, it is seen that this structure exhibited more sensitive performance for ammonia sensing. The findings of this study showed that...
In this report, we study factors that dominate the mode transformation of resistive switching (RS) in yttria based memristive devices. It is found that amorphous yttria films are more suitable for RS whereas highly crystalline films are counterproductive for RS. The transformation from unipolar to bipolar resistive switching mode is demonstrated in...
Rose-like ZnO microcube/MoO
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micrograss-based composite was synthesized via hydrothermal process followed by solution-based synthesis approach. The crystal structure, chemical state, morphology, and elemental analysis of the obtained rose-like comp...
Hybrid nanostructures consisting of both the organic and the inorganic part are being explored for various applications. However, the proper organization of the constituents restricts its applications. Nevertheless, certain -conjugated molecules have gained popularity among other organic molecules due to their diverse and remarkable properties. He...
The present report demonstrates the hydrothermal growth of Zn-BTC MOF. The molar variation of Zn and the organic surfactant has been studied to optimize the best molar concentration ratio to obtain a highly porous nanostructure. It was found that the molar ratio of 2:3 gives the best morphology.
Nanostructured blends of inorganic and organic materials could unwind unique properties and boost performance over each individual constituent. We demonstrate here a hybrid photodetector containing ZnO and functionalized oligo(p-phenylenevinylene), which was deposited electrochemically onto an electrode. XRD results reveal that the conjugates forme...
Questions
Questions (2)
We are using sono microplotter printing system.
I was trying to deposit hydroxide form of ZnCo2O4 through electrodeposition technique. In this regard I have taken Zn(NO3)2 · 6H2O and Co(NO3)2 · 6 H2O in a 1:2 molar ratio in a 40 ml DI water. Deposition potential was kept at -0.9V. However, current initially started to decreases but after few second it started to increase. Almost nothig deposited on the ITO glass. Any idea why this is happening?
I have used 3 electrode system as below configuration
Working Electrode: ITO Glass, Counter Electrode: Pt wire, Reference Electrode: Ag/AgCl
