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Item Open Access New Composite Material for Both Biodegradable Electronics and Soft Biomedical Electronics(2020-08-06) Yedrissov, Azamat; Khrustalev, Dmitriy; Khrustaleva, Anastassiya; Vetrova, AnastassiyaThe study of biodegradable polymers is in the focus of scientific interest, which is due to their increasingly diverse applications. Biodegradable polymers are widely used in the manufacture of packaging materials, cases for various products. In addition, they are used for various fields of medicine - from biodegradable prostheses to soft biomedical lectronics [1-3]. A new method for the production of Printed Circuit Boards (PCBs) based on polylactic acid and natural silk is proposed in this paper. The originality of our proposed method is to replace the currently used environmentally hazardous polymer binders with biodegradable polymers based on Polylactic acid and its copolymers. Experimental data have shown that the obtained rigid laminate for the production of PCB has a number of practically useful characteristics: it is relatively resistant to environmental factors; has good properties: durability, lightness, low electrical conductivity, good adhesion to both hydrophilic and hydrophobic materials, can be made from renewable sources and can be completely recycled into lowmolecular-weight natural substances or reused. Also, the proposed material biodegrades into environmentally natural substances. This approach has great potential for practical industrial applications, especially in the light of the “green chemistry” and “circular economy” concepts. Besides, the described materials are a promising base for creating new composite materials for both biodegradable electronics and soft biomedical electronics.Item Open Access Quantum-chemical simulation of N-doped Co3O4(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Kaptagay, G.; Mastrikov, Yu.; Kotomin, E.; Sandibaeva, N.; Kopenbaeva, A.; Baitasheva, G.Calculations were performed using the DFT method as implemented in the computer code VASP 5.4[1]. Core electrons were substituted with the US potentials with the PAW method [2]. Exchange-correlation described by the PBE functional [3]. The Hubbard correction U-J=3eV [4] was applied to d-electrons of Cotet as well as Cooct atoms [5]. For defects modeling cubic 56-atom supercell model has been used. For Brillouine zone [6] was sampled with the 2x2x2 Monkhorst- Pack scheme.Item Open Access Influence of plasma exposure on physical characteristics of thin films of SnO2 obtained from SnCl4 solutions with additives of NH4F and NH4OH(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Mukhamedshina, D.M.; Fedosimova, A. I.; Dmitrieva, E.A.; Lebedev, I. A.; Grushevskaya, E. A.; Ibraimova, S.A.; Mit, K.A.; Serikkanov, A.S.The electrical conductivity of tin dioxide is extremely sensitive to the state of the surface in the temperature range 300-800 K, at which oxidation-reduction reactions take place on its surface. Nanocrystalline films of tin dioxide are selectively sensitive to the presence of toxic gases, organic and certain biological molecules in the surrounding atmosphere [1]. SnO2-based films are also used as transparent conductive coatings [2]. To modify the properties of the films, alloying, heat treatment, plasma treatment is used.Item Open Access Development of double-layer anode material based on titanium nanotube for lithium batteries(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Ablayeva, K.; Abduakhytova, D; Lepikhin, MRecently, considerable efforts of specialists in the field of power sources are aimed at research on fully 3D microbatteries. The key advantage of a 3D microbattery is the higher surface area as compared to a planar film that allows for increased contact area with the electrolyte and more surface sites available for reversible reactions with lithium ions. This in turn leads to improved battery kinetics and increased power density while maintaining a small areal footprint. This peculiarity of the battery design can be provided by the use of 3D structured cathode/anode materials, the most attractive of which are highly ordered nanotubes (NTs) made of titanium dioxide with high capacity at fast charge and discharge rates and excellent long-term cycling characteristics. Apart from this crucial result, key to the successful fabrication of a full solid state microbattery is the conformal deposition of electrolyte on the self-supported electrode material to preserve the 3D architecture.Item Open Access FDTD simulations of transmission increase in corrugated tip of near-field scanning optical microscope(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Shomanov, Adai; Yessenbayev, Zhandos; Urazbaev, Arshat; Matkarimov, BakhytThis paper studies mechanisms of nano-focusing and transport of energy of a light through a tip with a sub-wavelength aperture diameter for scanning near-field optical microscopy (NSOM). In particular, we considered the problem of increasing the transmission of energy through the tip of the microscope. One way to improve transmission is to create a periodic metal-dielectric interface, which provides a coupling effect of the plasmon-polariton waves propagating at the boundary of the interface.Item Open Access Synthesis of PVP-coated nanoparticles based on ferrum oxide(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Yermekova, A.; Tulebayeva, D.Magnetic nanoparticles, especial Fe3O4, are the most interesting particles among others because of their attractive properties and a wide range of application in various areas. But magnetic nanoparticles have huge surface energy and strong magnetic interactions between particles, which lead them to be more affected by uncontrollable aggregation in normal conditions of preparation. Stabilization could be achieved by electrostatic and steric repulsion. Particles coating by ionic compounds increase electrostatic repulsion, when two particles approach, that provide more effective stabilization.Item Open Access Synthesis of WS2 crystals by the chemical vapor deposition (CVD) method on a SiO2 substrate(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Shaikenova, Altynay; Beissenov, Renat; Muratov, DaurenThe synthesis and characterization of WS2 single crystals grown by chemical vapor deposition (CVD) method thru sulfurization of tungsten oxide thin layer on quartz substrate was studied. Synthesis of WS2 was carried out at 800-1000 °C in CVD system. The sulphur vapor is transported by argon gas (500 sccm). Obtained WS2 single crystals characterized by optical microscope, Raman and photoluminescence analysis. Optical microscope analysis demonstrated that triangular WS2 domains with single phase crystal structure are formed. The thickness of WS2 is 6 layers, which determined by Raman spectroscopy. Photoluminescence spectroscopy is shown on Fig. 20, which revealed a strong peak between 600-660 nm, typically for a monolayer WS2 crystal, where the band gap is equal to 1.96 eV.Item Open Access Evaluation of Wall Material Admixture Threshold Values in Burning Zones of Fusion Devices(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Seksembayev, ZhandosOne of the problems of fusion devices is wall material right selection that depends on the research purposes. In various fusion devices the admixture of wall or shell material could present in fuel mixture affecting the burning nature. The electronic component of admixture creates additional radiation losses, then use of low Z material allows reducing them, however ionic component could be involved in producing energy. Both loss and gain depend on the temperature value. Also one should consider tolerance to high temperature. In this work we try to evaluate an admixture’s approximate threshold value that still could allow to keep the burning efficient at extreme conditions in traditional reactors as well as in specific ones for different fusion fuel types. It is obtained that the most capable fuel type DT allow up to several dozens percent of admixture in fuels concentration to be present at extreme conditions. The obtained values will be useful upon selection of suitable wall material.Item Open Access Preheating of a battery module in an EV(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Ismailov, K.; Massalin, Y.; Adair, D.; Bakenov, ZhumabayThe use of lithium-ion batteries for electric vehicles (EVs) shows excellent promise due to their outstanding properties regarding high energy and power densities, long service life, low self-discharge and rare pollution. However, the performance and life cycle of such batteries depend on the operating temperature as they are extremely sensitive not only to high but also to low temperatures. The climatic conditions of Kazakhstan and in particular, the north part of the country are quite extreme. Temperatures may drop below -40ºC in winter time. For a battery pack of an EV to perform in the most effective way, temperature management is very important. The proposed thermal management system will maintain a battery pack at an optimum average temperature range with an even temperature distribution throughout the module. In this part of the work particular attention paid to the preheating process.Item Open Access Nano-structures Embedded Perovskite Solar Cells(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Lee, Heon; Oh, Kyoungsuk; Byun, Minseop; Huh, Daehong; Kim, Minjin; Jo, Yimhyun; Kim, Dong Suk; Ahn, Jinho; Choi, RinoOrganic-inorganic hybrid perovskite solar cells (PSCs) are now attracting tremendous attention for new-generation photovoltaic device because of their excellent power conversion efficiency (PCE) and simple fabrication process. Various researches have been carried out to increase the efficiency of PSCs. Herein, we report on the three methods for enhanced performances of PSCs based on nanoimprint lithography technology.Item Open Access Structure and morphology of spinel MgFe2O4 nanoparticles for water purification(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Demeuova, Gulzat; Mauit, Ozhet; Ualibek, Oral; Toktarbaiuly, Olzat; Baisaryev, Murat; Sugurbekova, Gulnar; Kurbanova, AliyaIn this work, spinel magnesium ferrite MgFe2O4 nanoparticles were synthesized by convential sol-gel methods. The study was focused on obtaining nanoparticles with the maximum content of specified ferrites, nanosized and uniform particles, with high crystallinity for water purification application....Item Open Access Theoretical assumptions for saving energy of electrical heating water in the solar collector – battery(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Kunelbayev, Murat; Merembayev, Timur; Yunussov, Rassul; Aizhan, Irzhanova; Yedilchan, DidarIn this article a theoretical assumptions in the energy saving energy source of the solar collector – accumulator is presented. One of the main features of the solar collector - accumulator is the electric hot water in a cold season, or in night days of a sun radiation. The experiments showed that conventional thermoelectric welding device, which is based on conventional power factor could be used to control a temperature of the nozzle from the initial temperature...Item Open Access Raman spectroscopy as a structural characterization tool for lithium iron phosphates(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Pelegov, D. V.; Makhmutov, A. R.; Ryabin, A. A.; Slautin, B. N.; Gorshkov, V. S.Lithium iron phosphate LiFePO4 (LFP) with olivine structure was proposed to be used as a positive electrode material for lithium batteries in 1997 [1]. Twenty one years later LFP-based cells are widely used in traction batteries (LFP is the dominating cathode material for electric buses batteries) and stationary energy storages systems for grid balancing and renewables. Maybe, partially due to such a fast transition from promising to industrial-scale-produced positive electrode material, LFP still needs in some basic researches. One of the most important in the times of fast production scaling-up and steady price per kW∙h decreasing is the structural characterization....Item Open Access Preparation of high performance micro- and mesoporous carbon-based sorbents from rice husk and walnut shell(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Yeleuov, Muhktar; Smagulova, Gaukhar; Supiyeva, Zhazira; Mansurov, ZulkhairActivated carbon (AC) is a porous substance that is obtained from various carbonaceous materials of organic origin: charcoal, coal coke, rice husk, walnut shell and other materials. AC has a huge number of pores and is characterized by a large surface area per unit mass, as a result of which it has a high adsorption capacity....Item Open Access In situ Study of Silicon-Based Thin Film Anodes for Lithium Ion Battery(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Mukanova, Aliya; Serikkazyeva, Assel; Nurpeissova, Arailym; Kim, Sung-Soo; Myronov, Maksym; Bakenov, ZhumabaySilicon (Si) has become a forefront candidate among other anode materials suitable for high-performance lithium-ion batteries (LIBs)[1]. The interest of scientists is caused by its high specific capacity of 3579 mAh g-1 achievable upon formation of the Li15Si4 silicide, a theoretical volumetric capacity of 2190 mAh cm-3, a comparatively low discharge potential of 0.4 V vs. Li/Li+, and low cost and safety[2,3]. However, an alloying nature of Si lithiation, which leads to a high capacity, is inevitably accompanied by an undesirable volume expansion...Item Open Access Vanadium based cathode materials for Aqueous Batteries(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Batyrbekuly, Dauren; Kurmanbayeva, Indira; Bakenov, ZhumabayLithium ion batteries have become the main stream for energy storage; however, its toxicity, poor durability (≤5 years) and high cost (≥USD2.35/Wh every 25 years), along with the safety issues (very high degree of reactivity with water, flammable organic solvent) make them difficult to use in smart grids...Item Open Access An investigation of the Zn dendritic growth in Zn//LiCl + ZnCl2//LiFePO4 rechargeable aqueous battery(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Adi, Akylbek; Zakarina, Raikhan; Kurmanbayeva, Indira; Babaa, Moulay-Rachid; Bakenov, ZhumabayAqueous rechargeable lithium-ion batteries (ARLBs) have appeared to be a promising candidate for increasing battery safety and reducing fabrication cost. One of such systems was published in 2015 [1], where zinc (Zn) foil had been chosen as a negative electrode due to its abundance in the Earth's crust and high theoretical capacity. However, Zn-based battery systems have a common serious issue arising from the Zn dendritic growth on the surface of the electrode after several cycles leading to shortened cycle life...Item Open Access A multi-scale model for Transport and Reaction in Heterogeneous Porous Media(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Dobri, Adam; Zeinula, Aizhan; Papathanasiou, T.D.Many practical problems in engineering occur over time and length scales that differ by many orders of magnitude. This makes the application of direct numerical approaches for the prediction of their response impractical. One such class of systems involves heterogeneous porous media in which small spherical porous particles are dispersed within a larger porous domain. We are interested in investigating such systems in which diffusional and convective transport in the continuous phase are coupled with diffusion and reaction/immobilization within the micro-scale inclusions; we develop multi-scale models which enable the prediction of the transient response of such systems taking into account, in a rigorous manner, the transport and reaction at the micro-scale. Immobilized bioreactors [1], ground-water or hydrocarbon flow in fractured rock [2] and ion diffusion in Li-ion batteries [3] are all potential systems of interest.Item Open Access Estimation of prevented environmental-economic damage in case of utilization of ferroalloy production waste(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Mukanova, Roza; Safarov, Ruslan; Shomanova, Zhanat; Osmanova, Zhamilya; Shomanov, Adai; Nossenko, Yuriy; Kopishev, EldarIn recent years the more and more attention spent on detailed assessment of natural resource potential and environmental situation in regions [1,2]. According to conception of sustainable development, it is necessary to evaluate environmental influence economically. The one of most used method is to calculate values of ecological and economic damage, and particularly a prevented environmental-economic damage [3]. The principle of prevention but not compensation is the basis of conception of prevented damage. Prevented environmental pollution damage is an estimate in monetary terms of the possible negative effects that could be avoided as a result of a set of measures to protect the environment.Item Open Access The efficiency of depressor additives application for ARPD inhibition and removal in oil storage tanks(The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08) Abdikalykov, Yerlan; Abilmagzhanov A., Arlan; Ivanov, NikolayThe oil produced in the fields of Kazakhstan is characterized by a high content of paraffin hydrocarbons, which is one of the factors forming asphalt-resin-paraffin deposits (ARPD). Rapid formation of ARPD on the inner surface of the oilfield and refinery equipment greatly reduces the efficiency of the pumping installations, impairs the capacity of pipelines and reduces turnaround time equipment operation [1]....