PROFESSIONAL EVENT SPEAKERS


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Dr. Evgenii K

Kurchatov Institute, Russia

Dr. Evgenii K, Kurchatov Institute, Russia

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Dr. Hicham Elmselem,

University of Mohammed Premier, Morocco

Dr. Hicham Elmselem, University of Mohammed Premier, Morocco

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Dr. Mamoun FellahKhenchela

University of Khenchela, Algeria

Dr. Mamoun FellahKhenchela, University of Khenchela, Algeria

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Dr. Sudhanshu Dwivedi

S.S. Jain Subodh P.G. (Autonomous) College, Jaipur, India

Spintronic Devices : Manoeuvring Electronic Spin In Nanostructured Magnetic Media

Spintronics is an emerging field manipulating spin degree of freedom of electron for development of high speed nanoelectronics devices for a variety of applications. Spintronic devices can be categorized into active and passive devices. Active devices are inclusive of spin valve, magnetic tunnel junction (MTJ) and ferroelectric tunnel junction (FTJ) amongst others. Passive devices include monolithic and hybrid spintronic devices. Monolithic spintronic technology manoeuvres only spin degree of electron for storage and transportation of information. Hybrid spintronics exploits both charge and spin degrees of freedom of electron. The main entity for information storage and processing is the “electron” only but spin augments these characteristics significantly.

 To more about this Visit our Conference Nanomaterials 2020


 

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Dr. Virendra Kumar Yadav

Department of microbiology, Sankalchand Patel University, Visnagar, India

Synthesis and characterization of calcium oxide nanoparticles from incense sticks ash

The nanotechnology and nanoparticles has gained a huge attention in the last few decades in the field of medicine, environmental cleanup, research and industries. They have numerous advantages in comparison to their bulk particles due to their high surface area to volume ratio and high surface energies. But, currently their commercial synthesis is very expensive. So, there is need of an economical, easily available source material. One such material is incense sticks ash, which are rich source of calcium that can be processed for the recovery of calcium oxide particles. The present study describes a method for the synthesis of calcium oxide micro particles from high calcium incense sticks ash so as to meet the requirement of green chemistry approach.

To more about this Visit our Conference Nanomaterials 2020

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Ali Abu Odeh

Assistant Professor at Khawarizmi International College, Al Ain, United Arab Emirates

Graphene: Recent advances on its properties, derived materials and synthesis

Due to its unique structure and interesting properties, Graphene, a single atomic layer of carbon hexagons, has stimulated much research interest. Graphene and the other carbon allotropes and derivatives such as fullerene, carbon nanotubes (CNTs), and graphite have been studied extensively due to their unique physical, chemical, thermal, mechanical, magnetic, and electrical properties. The material’s tremendous properties are making it a replacement to many traditional materials in many applications. With the development of nanotechnology and nanoscience, various methods have been developed to synthesize and fabricate graphene by using both Top-down and Bottom-up methods. The purpose of this study is to highlight the most recent research on the state-of-the-art of graphene, to elaborate and discuss the properties of graphene, graphene derivatives, graphene synthesis, and future applications, with the goal of providing a detailed resource for scientists, researchers and graduate students from different sectors.

To more about this Visit our Conference Nanomaterials 2020

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Hasna BOUCHAREB

Département SM, faculté des sciences Université d’Alger, Algeria

Synthesis, crystal structures and characterizations of two new copper complexes including thioheneacetic acid and imidazole ligands

 Two new thiopheneacetic – based copper (II) complexes, namely bis(1H-imidazole)-(2-thiopheneacetato-O,Oi) (thiopheneaceato-O)-copper(II),  [Cu(HTAA)2(imd)2] (1); bis(1H-benzimidazole-kN3)bis(2-thiopheneacetato-O,Oi)copper(II), [Cu(HTAA)2(bimd)2] (2), ( HTAA is thiopheneacetic acid (C6H5O2S), imd is imidazole (C3H4N2) and bimd is  benzimidazole (C7H6N2)), have been synthesized and characterized by FT –IR spectroscopy, and single crystal X-Ray diffraction. X-Ray diffraction analysis shows that complexes 1 and 2 have mononuclear units with the general formula [Cu(HTAA)2L2]  (L is imd or bimd), in 1 Cu+2 ions is surrounded by tow HTAA and tow imd ligands with the distorded square bipyramidal coordination,  Discrete monomeric units of 1 form a one-dimensional network via hydrogen bonds through  nitrogen atoms and  acetate oxygen atoms of the neighbouring molecules. Complex 2 consist of individual molecule in wish the Cu+2 lies on a center of symmetry; two thiopheneacetat and tow benzimidazole ligands surround the copper center forming an octahedral CuN2O4 core. Both the HTAA and bimd ligands are arranged in trans positions. Each HTAA ligand is coordinated in a bidentate manner to the Cu2+ ion through the carboxylate O atoms (O1, O2,O3 and O4), creating a four-membered chelate ring, while the bimd ligands behave in a monodentate manner, coordinated through the N1 and N3 atoms.  The coordination mode of carboxylate group in complex 2 were revealed by  Fourier transform IR (FT–IR) spectroscopy

To more about this Visit our Conference Nanomaterials 2020

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Dr. S. Roguai

LASPI2A Laboratoire des Structures, Propriétés et Interactions Inter Atomiques, Université Abbes Laghrour, Khenchela 40000, Algérie

Roles of cobalt doping on Structural, microstructural, optical and magnetic properties of Zn1-xCoxO thin films by ultrasonic spray pyrolysis

Here we report a systematic study of structural, optical, and magnetic measurements of Zn1-xCoxO (x = 0–0.22 at.%) by Ultrasound pyrolysis spray technique.The hexagonal wurtzite structure of our films is confirmed by X-ray diffraction with an average crystallite size estimated in the range of 18–30 nm. The compound structure and stoichiometry of the films is further characterized by EDAX. The spectrum analysis discovers great chords between the expected and measured Co atomic content in the films indicating an effective doping. The results also reveal a high solubility limit of Co into ZnO solid solution at about 14 at.%. For the optical proprieties, the bandgap energy will decrease due to the presence of high concentrations of localized states in the thin films. In addition, the magnetic properties of Zn1−xCoxO thin films are found to be strongly influenced by Co doping.

 To more about this Visit our Conference Nanomaterials 2020

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Dr. Injamamul Arief

Laboratoire Ingénierie des Matériaux Polymères (IMP), Université Claude Bernard Lyon FRANCE

Electromagnetic Shielding Ability of Strongly Magnetic Polymer and Surfactant-encapsulated FeCo Nanorods and Nanocubes in Conducting PVDF Composites

In this work, I demonstrated that efficient electromagnetic (EMI) shielding efficiency can be achieved by dispersing engineered FeCo anisotropic nanostructures in PVDF-matrix in presence of conductive MWCNTs. The FeCo nanorods (~800 nm) and nanocubes (~100 nm) were synthesized by a facile polymer-assisted one-pot borohydride reduction method. The growth mechanism depicted a two-directional growth for cubes whereas for nanorods, a unidirectional growth pattern was prescribed. A shielding effectiveness (SET) of -44 dB at 18 GHz was achieved for a particular combination of FeCo nanorods and MWCNT and for nanocube-based composites, it was observed to be -39 dB at 18 GHz.

 To more about this Visit our Conference Nanomaterials 2020

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Dr. N. Mecheri

Laboratory of Sensors, Instrumentations and Process (LCIP), University of Khenchela, Algeria

Detection of trace Iron Ions in Real Water Samples Using Silver Nanoparticules  (AgNPs)

A novel strategy to fabricate Fe3+ sensor was developed by electrodepositing Agnanoparti-cles (NPs) on a platinum electrode modified. The result of electrochemical is suived by chronoampérométrique. Here, we report the design and application of a new PVC membrane electrode, based on 18-crown-6, for determination of iron (III) ion. The electrode illustrates an excellent Nern-stian slope of-0.0031 A /decade over a wide linear range of concentration from 10 -13 to  10 -7 M with a detection limit of 10 -13M of Fe3+ in solution. The response time of 120 s.

Keywords: 18-Crown-6;  Iron(III); sensor; Ag Naoprticl;PVC membrane.

 To more about this Visit our Conference Nanomaterials 2020

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Assist Prof Dr.Thomas Carpy

Dublin City University, Department of Physical Sciences, , Dublin, Rep. of Ireland

Growth and Characterisation of Nanonetworks and Graphene Nanoribbons on metal surfaces: Critical Role of Substrate on Atomic Structure

The absence of band gap in graphene hinders its potential application as an effective com-ponent in nanoscale electronic devices. In this context a number of different approach-es for generation of a sizable band gap in graphene have been proposed. Recently ex-plored strategies include chemical modifica-tion, bilayer control and induced defects. Another promising route for inducing a band gap in the electronic structure of graphene relies on confining the charge carriers within a quasi-one dimensional (1D) graphene nano-ribbon (GNR). The electronic structure of GNRs is highly dependent on their geometry and chemical composition: the one dimen-sional band structure of GNRs depends criti-cally on its chirality (armchair, zigzag or in-termediate edge shapes) and the size of the band gap depends inversely on the GNRs width . Keywords: 18-Crown-6;  Iron(III); sensor; Ag Naoprticl;PVC membrane.

 To more about this Visit our Conference Nano materials 2020

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Dr. Abdeen Mustafa Omer

Energy Research Institute (ERI), Nottingham, UK

Heat exchangers Technology and Applications in Heat Exchanger Engineering

Over the years, all parts of a commercial refrigerator, such as the compressor, heat exchangers, refrigerant, and packaging, have been improved considerably due to the extensive research and development efforts carried out by academia and industry. However, the achieved and anticipated improvement in conventional refrigeration technology are incremental since this technology is already nearing its fundamentals limit of energy efficiency is described is ‘magnetic refrigeration’ which is an evolving cooling technology. The word ‘green’ designates more than a colour. It is a way of life, one that is becoming more and more common throughout the world. An interesting topic on ‘sustainable technologies for a greener world’ details about what each technology is and how it achieves green goals. Recently, conventional chillers using absorption technology consume energy for hot water generator but absorption chillers carry no energy saving. With the aim of providing a single point solution for this dual purpose application, a product is launched but can provide simultaneous chilling and heating using its vapour absorption technology with 40% saving in heating energy.

 To more about this Visit our Conference Nano materials 2020

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