Scientific Program

Conference Series Ltd invites all the participants across the globe to attend 4th European Chemistry Congress Barcelona, Spain.

Day 3 :

  • Petro Chemicals
    Polymer Chemistry
    Medicinal Chemistry
    Pharmaceutical Chemistry
    Nanotechnology and Applications
    Synthetic Chemistry

Session Introduction

Yutaka Moritomo

University of Tsukuba, Japan

Title: Prussian blue analogues as battery materials for energy science
Biography:

Yutaka Moritomo has completed his PhD in physics at the age of 27 years from University of Tokyo and postdoctoral studies from University of Tokyo. Now, he is the director of divivion of materials for energy storage and conversion, Center for Integrated Research in Fudamental Science and Engineering (CiRfSE), University of Tsukuba. He has published more than 300 papers (total citation is more than 20,000).

Abstract:

Prussian blue analogues (PBAs:NaxM[Fe(CN)6]y where M is a transition metal) have three-dimensional (3D) jungle-gym-type host framework and cubic nanopores, 0.5 nm at the edge. PBAs are promising cathode materials for lithium ion (LIBs) and sodium ion (SIBs) secondary batteries,[1-3] reflecting their nanoporous host framework. Actuially, thin film of NaxCo[Fe(CN)6]0.90  shows high capacity of 135 mAh/g,[3] which is comparable to the value (= 140mAh/g) of actually-used LiCoO2. The thin film electrode exhibits a high capacity of 121 mAh/g (90 % of the OCV value) even at 60 C. The discharge curve exhibits two plateaus at 3.8 and 3.4 V. By means of ex situ X-ray diffraction and absorption measurements, we have ascrived them the the redox processes of Fe and Co.[3]

            The thin film battery electrode is a nice platform for energy science, becauase the electrode is free free from carbon-based conducting material and polymer-based binder. With use of an optical battery cell and microscopy, we clarified the structural dynamics in the charge process (Li intercalation process) of LixCo[Fe(CN)6]0.90.[4] We cleary observed phase separation into the Li-rich and Li-poor domains of iorder of 10,000 nm. With use of the inelastic X-ray scattering technique, we clartified that local structures around Co2+ and Co3+ in NaxCo[Fe(CN)6]0.90.

Biography:

Ali Mansri has completed his PhD at the age of 27 years from Le Maine University in France and Doctorat d’état-ès sciences studies from Tlemcen University in Algeria. He is the director of the laboratory of Application of Organic Electrolytes and Polyelectrolytes (LAEPO), University of Tlemcen. He has published more than 75 papers in reputed journals and has been serving as reviewer of several repute journals. He is consultant in a quality control laboratory where he Elaborate several new materials for the ceramic and water treatment industries.        
 

Abstract:

The last few years have seen a growing interest around the formulation of Bentonite/copolymer micro-composites. ¶TTheir technological and fundamental interest and applications lead to several synthesis procedures. In the present presentation, new organophilic micro-composite materials derived Poly(acrylamide-VP) copolymers/Bentonite [PPAM/BEN] were formulated, with Bentonite as a mineral material and Poly(acrylamide-VP) [PPAM] copolymer derivatives. Thus, hydrophobically modified water soluble Poly(acrylamide-VP) [PPAM] copolymers were prepared by classical or adiabatic radical polymerizations of acrylamide and Bentonite in heterogeneous medium in the presence and absence quaternary ammonium surfactants. The properties of the obtained micro-composites in aqueous solution depend on the experimental conditions, especially on the monomer ratios and on the Bentonite rate. They give a suspension when mixed energetically in water. Both the copolymers and the micro-composites materials were characterized using various techniques like 1HNMR, 13CNMR and ultraviolet spectroscopies, GPC and viscosity. The results of the thermal characterization by TGA showed good stability of the materials at high temperatures.

These organophilic micro-composite materials were used for the pollutants retentions from aqueous solutions. Experiments show very good results which become more important with the materials based on the low ratios of Bentonite [PPAM-VP/BEN]. These micro-composites [PPAM/BEN] were tested, for the first time, in the Flocculation process water treatment. The tests are conducted on a semi-industrial experimental pilot. Good Flocculation yields were observed.

Biography:

Abstract:

Carbonaceous materials, based on polyaromatic hydrocarbons (PAH), have multiple applications particularly on:  atmospheric chemistry, heavy oil components, interstellar chemistry, liquid crystals, carbonization chemistry, catalysis, electronic components, etc.  In this presentation, several interactions between radicals with a PAH (coronene molecule) have being studied: (a) model aging of black carbon (BC) produced in air pollution [1]; (b)  formation  of molecular species on carbonaceous material of the interstellar medium (ISM) [2]; (c) the metal and metal oxides species formed on pyrolytic graphite platform (PGP), used in electrothermal atomic absorption spectroscopy (ETAAS) [3]; (d) metal supported on graphene for the catalysis of olefin hydrogenation [4]. For modeling the above mentioned systems, quantum chemistry calculations at DFT level, parametric, tight binding, and Monte Carlo techniques were employed.

(a) Potential energy surfaces for •OH reaction with coronene as model of BC were evaluated to explain the aging of BC. It means, BC destruction in atmosphere is simulated by the breaking of C-H and C-C bonds after multiple interactions with •OH with the formation of CO2 plus H2O. This aging process goes through on the edge surface oxidation with the formation of OH, C=O, and COOH groups. The increase of the surface hydrophilicity was analyzed by using PM6 and DFT-D, explaining water condensation [1].

(b) Several studies of molecular formation in the ISM were carried out for the formation of H2, H2O, CH4, NH3 molecules after multiple hydrogenations by (Eley-Rideal (ER) mechanism). Events associated with these processes have been studied with the calculation of chemisorption, diffusion, desorption, and surface reaction barriers [2]. The temperature desorption spectrum (TDS) of H2 on graphite is simulated with a Monte Carlo approach using calculated barriers of each event with DFT. A very good theoretical and experimental matching is obtained. The effect of multiple layers of graphene and ionization (charge effects) were also analyzed.

(c) Comparison between X-ray photoelectron spectra (XPS) and theoretical stability of possible Mo species on a model of pyrolytic graphite at different stages of the ETAAS process was performed [3]. The interpretation of XPS in different regions of the PGP indicates the migration of MoxOy species far from the center region. It was found that very stable oxides on the edges of the graphite are formed, then reductions of these species are feasible because are thermodynamically favored. Carbide formation on the dehydrogenated sites is responsible for observed species at ETAAS.

(d) Highly dispersed nanocatalyst synthetized by metal deposition on small graphenes was theoretically modeled [4]. Metallic nickel chemisorptions on multiple sites yield a very active catalyst for hydrogen activation. The interaction with ethylene is analyzed on different sites.  Results show that the activation barrier for ethylene hydrogenation is very low. A novel catalyst is proposed for hydrogenation of hydrocarbons.

One may conclude that carbonaceous surfaces have multivariate technological applications, particularly, for recombination of radical species on their surfaces.

Biography:

After receiving his PhD from the Johns Hopkins University (USA) in 1992 at the age of 27, JC moved back to France to work at Rhône-Poulenc Rorer in Paris as a medicinal chemist, in the field of Anti-Infectious diseases. From 1999 to 2004, at Aventis he worked in the global Medicinal Chemistry Department, being involved in several international collaborations in connection with various therapeutic areas. Since 2004, he has worked at Sanofi, first in the Oncology Business Division (2004-2014), then in a global scientific platform called Integrated Drug Discovery (2014 to present) as a group and project leader. he has published over 70 papers and patents.

Abstract:

The Aurora family of serine/threonine kinases is essential for mitosis. Their crucial role in cell cycle regulation and aberrant expression in a broad range of malignancies have been demonstrated and have prompted intensive search for small molecule Aurora inhibitors. Indeed, over ten of them have reached the clinic as potential anticancer therapies. We will report the discovery and optimization of a novel series of tricyclic molecules that has led to SAR156497, an exquisitely selective Aurora A, -B and -C inhibitor with in vitro and in vivo efficacy. We will also provide insights into its mode of binding to its target proteins from X-Ray data, which could explain its selectivity.

Biography:

Abstract:

The diabetes constitutes a true problem of public health in the world. It results in a sugar rate abnormally raised, measured in blood in several months of intervals. It is about a chronic metabolic disease which occurs when the pancreas does not secrete insulin: insulino-dependent diabetes (type I) which generally touches the young subject before 30 years or when the pancreas does not produce sufficient insulin and that the secretion of this one is overdrawn; form diabetes found at the adults and the obese ones: noninsulino-dependent diabetes (type II). Indeed, vis-a-vis the noted dissatisfaction of the modern remedies, the traditional phytotherapeutic tracks seem to reinforce an interesting potential, of which the process of development, plant with phytomédicament, through adequate scientific processes, could offer a credible alternative, in favour of the communities.

Biography:

Fatih is a 2nd year PhD student in the “Laboratoire de Synthèse et Réactivité Organiques et Catalyse” at the University of Strasbourg supervised by Pr Patrick Pale and Aurélien Blanc. He is working on new Palladium and Gold catalyzed pathways towards natural products synthesis. After his chemistry bachelor in Strasbourg, he did a master degree on drug design and production at the Faculty of Pharmacy of Strasbourg. During his master’s internship at Harvard Neurodiscovery Center-Harvard Medical School, he worked on the lead optimization for the treatment of Alzheimer.

Abstract:

Natural products have mostly a heterocyclic scaffold and retain particular attention from
organic chemists due to their biological activity and also their utility to provide an attractive
platform to establish the usefulness of novel synthetic pathways. Palladium catalyzed reactions are wide used to this aim given that this metal offer and abundance of possibilities of carbon-carbon and carbon-heteroatom bond formations. Furthermore, the non-toxicity and the tolerance of palladium to many functional groups, widely present on natural products, are important attractive features.

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