Academic literature on the topic 'Li2MnO3'

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Journal articles on the topic "Li2MnO3"

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Susai, Francis Amalraj, Michael Talianker, Jing Liu, et al. "Electrochemical Activation of Li2MnO3 Electrodes at 0 °C and Its Impact on the Subsequent Performance at Higher Temperatures." Materials 13, no. 19 (2020): 4388. http://dx.doi.org/10.3390/ma13194388.

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This work continues our systematic study of Li- and Mn- rich cathodes for lithium-ion batteries. We chose Li2MnO3 as a model electrode material with the aim of correlating the improved electrochemical characteristics of these cathodes initially activated at 0 °C with the structural evolution of Li2MnO3, oxygen loss, formation of per-oxo like species (O22−) and the surface chemistry. It was established that performing a few initial charge/discharge (activation) cycles of Li2MnO3 at 0 °C resulted in increased discharge capacity and higher capacity retention, and decreased and substantially stabi
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Liu, Guang, Hui Xu, Zhongheng Wang, and Sa Li. "Operando electrochemical fluorination to achieve Mn4+/Mn2+ double redox in a Li2MnO3-like cathode." Chemical Communications 58, no. 20 (2022): 3326–29. http://dx.doi.org/10.1039/d1cc06865b.

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The drastic changes (Li2MnO3→Li1.67MnO2.1F0.2) in the first cycle of Li2MnO3-like through oxygen release (O2−→O2) and in operando F-doping, activated a two-electron redox of Mn4+/2+ with a capacity of 326 mA h g−1.
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Sun, Ya, Jialuo Cheng, Zhiqi Tu, et al. "Effects of Synthesis Conditions of Na0.44MnO2 Precursor on the Electrochemical Performance of Reduced Li2MnO3 Cathode Materials for Lithium-Ion Batteries." Nanomaterials 14, no. 1 (2023): 17. http://dx.doi.org/10.3390/nano14010017.

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Li2MnO3 nanobelts have been synthesized via the molten salt method that used the Na0.44MnO2 nanobelts as both the manganese source and precursor template in LiNO3-LiCl eutectic molten salt. The electrochemical properties of Li2MnO3 reduced via a low-temperature reduction process as cathode materials for lithium-ion batteries have been measured and compared. Particularly investigated in this work are the effects of the synthesis conditions, such as reaction temperature, molten salt contents, and reaction time on the morphology and particle size of the synthesized Na0.44MnO2 precursor. Through r
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Pulido, Ruth, Nelson Naveas, Raúl J. Martin-Palma, et al. "Phonon Structure, Infra-Red and Raman Spectra of Li2MnO3 by First-Principles Calculations." Materials 15, no. 18 (2022): 6237. http://dx.doi.org/10.3390/ma15186237.

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The layer-structured monoclinic Li2MnO3 is a key material, mainly due to its role in Li-ion batteries and as a precursor for adsorbent used in lithium recovery from aqueous solutions. In the present work, we used first-principles calculations based on density functional theory (DFT) to study the crystal structure, optical phonon frequencies, infra-red (IR), and Raman active modes and compared the results with experimental data. First, Li2MnO3 powder was synthesized by the hydrothermal method and successively characterized by XRD, TEM, FTIR, and Raman spectroscopy. Secondly, by using Local Dens
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Thajitr, W., W. Busayaporn, and W. Sukkabot. "Effects of different Ti concentrations doping on Li2MnO3 cathode material for lithium-ion batteries via density functional theory." Physica Scripta 99, no. 7 (2024): 075973. http://dx.doi.org/10.1088/1402-4896/ad564e.

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Abstract Li2MnO3 is extensively studied for a cathode material in lithium-ion batteries because of its high voltage and specific capacity. Nevertheless, it has the disadvantages due to low conductivity and Li-ion diffusion. To modify its performance, we determine the structure stability and electronic properties of Li2MnO3 cathodes doped with different Ti-ion concentrations using the spin-polarized density functional theory including the Hubbard term (DFT + U). For the calculations, cell parameters, formation energies, band gaps, total density of states, partial density of states and stability
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Kuganathan, Navaratnarajah, Efstratia Sgourou, Yerassimos Panayiotatos, and Alexander Chroneos. "Defect Process, Dopant Behaviour and Li Ion Mobility in the Li2MnO3 Cathode Material." Energies 12, no. 7 (2019): 1329. http://dx.doi.org/10.3390/en12071329.

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Lithium manganite, Li2MnO3, is an attractive cathode material for rechargeable lithium ion batteries due to its large capacity, low cost and low toxicity. We employed well-established atomistic simulation techniques to examine defect processes, favourable dopants on the Mn site and lithium ion diffusion pathways in Li2MnO3. The Li Frenkel, which is necessary for the formation of Li vacancies in vacancy-assisted Li ion diffusion, is calculated to be the most favourable intrinsic defect (1.21 eV/defect). The cation intermixing is calculated to be the second most favourable defect process. High l
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Mphahlele, Mamonamane, Mallang Masedi, Kemeridge Malatji, Phuti Ngoepe, and Raesibe Ledwaba. "The role of Ru doping on the electronic, mechanical and vibrational properties of Li2MnO3 cathode material." MATEC Web of Conferences 406 (2024): 06015. https://doi.org/10.1051/matecconf/202440606015.

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We present a comprehensive first-principles study of Ru-doped Li2MnO3 cathode material for lithium-ion batteries, utilising hybrid density functional calculations. Ru was chosen due to its ability to enhance cycling stability and structural integrity. The investigated structures, adapted from a previous study and generated through cluster expansion, include Li2RuO3, Li2Mn0.33Ru0.67O3, and Li2Mn0.5Ru0.5O3, which are compared with the pristine material. The primary properties under investigation include the density of states, phonon dispersion curves, and elastic properties. The analysis of the
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Chennakrishnan, Sandhiya, Venkatachalam Thangamuthu, Akshaya Subramaniyam, Viknesh Venkatachalam, Manikandan Venugopal, and Raju Marudhan. "Synthesis and characterization of Li2MnO3 nanoparticles using sol-gel technique for lithium ion battery." Materials Science-Poland 38, no. 2 (2020): 312–19. http://dx.doi.org/10.2478/msp-2020-0026.

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AbstractNanoparticles of Li2MnO3 were fabricated by sol-gel method using precursors of lithium acetate and manganese acetate, and citric acid as chelating agent in the stoichiometric ratio. TGA/DTA measurements of the sample in the regions of 30 °C to 176 °C, 176 °C to 422 °C and 422 °C to 462 °C were taken to identify the decomposition temperature and weight loss. The XRD analysis of the sample indicates that the synthesized material is monoclinic crystalline in nature and the calculated lattice parameters are 4.928 Å (a), 8.533 Å (b), and 9.604 Å (c). The surface morphology, particle size an
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Guerrini, Niccoló, Liyu Jin, Juan G. Lozano, et al. "Charging Mechanism of Li2MnO3." Chemistry of Materials 32, no. 9 (2020): 3733–40. http://dx.doi.org/10.1021/acs.chemmater.9b04459.

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Riou, A., A. Lecerf, Y. Gerault, and Y. Cudennec. "Etude structurale de Li2MnO3." Materials Research Bulletin 27, no. 3 (1992): 269–75. http://dx.doi.org/10.1016/0025-5408(92)90055-5.

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Dissertations / Theses on the topic "Li2MnO3"

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Liu, G. R., S. C. Zhang, X. X. Lu, and X. Wei. "Preparation of Nanostructured Li2MnO3 Cathode Materials by Single-Step Hydrothermal Method." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35190.

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Nanosized (10~50 nm) cathode material Li2MnO3 was prepared for with MnSO4·H2O,KMnO4 and Li- OH aqueous solution as the precursor via single-step hydrothermal reaction by controlling the reaction time, proportion of processor, and the reagent concentration. The prepared materials were well crystallized and exhibited a monoclinic Li2MnO3 structure with a space group of C2/m phase. The electrochemical performance of the material was tested at current density of 60 mAg-1 (1/4 C) between 4.3V and 2.0 V at room temperature, showing good electrochemical properties with the initial discharge capa
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Boulineau, Adrien. "Contribution à la compréhension de la structure de Li2MnO3, de ses défauts et de phases dérivées." Thesis, Bordeaux 1, 2008. http://www.theses.fr/2008BOR13747/document.

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Afin de mieux comprendre les évolutions structurales mises en évidence dans les oxydes lamellaires de formule générale Li1+x(Ni0.425Mn0.425Co0.15)O2 utilisés comme électrode positive pour batterie lithium-ion, la structure du composé Li2MnO3 a été étudiée en détail. Obtenu selon différentes voies de synthèses, réalisées à différentes températures, ce matériau qui peut être considéré comme un matériau model à fait l’objet d’une étude cristallographique où l’utilisation de la microscopie électronique a été privilégiée. Deux types de défauts ont été identifiés. D’une part, l’existence de fautes d
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Boulineau, Adrien Weill François. "Contribution à la compréhension de la structure de Li2MnO3, de ses défauts et de phases dérivées." S. l. : Bordeaux 1, 2008. http://tel.archives-ouvertes.fr/tel-00378262.

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Fan, Zhe-Shuan, and 范哲軒. "First Principle Investigation of Li Ni1/3Co1/3Mn1/3O2‧Li2MnO3 Composite." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/47174669721185708047.

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Chen, Chien-Liang, and 陳建良. "Preparation and characterization of Cr-doped Li2MnO3 cathodes for lithium ion batteries." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/b8gepd.

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碩士<br>大同大學<br>材料工程學系(所)<br>102<br>Monoclinic Li2MnO3 cathode materials were prepared via Pechini method followed by heat treatment at temperatures between 600 and 900 oC. The effects of heat-treatment temperature and Cr substitution on the physical and the electrochemical properties of Li2MnO3 were investigated. The crystalline structure, composition, and morphology of the prepared samples were studied by XRD, ICP-OES, and FE-SEM, the average valence and of Cr in the prepared samples were estimated by XPS, and the electrochemical properties were analyzed by capacity retention study with Li2MnO
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NAVEEN and RITU RATHORE. "STRUCTURAL AND ELECTROCHEMICAL STUDY OF HIGH VOLTAGE CATHODE MATERIAL, Li2MnO3, AND IT’S REDOX REACTION ANALYSIS." Thesis, 2023. http://dspace.dtu.ac.in:8080/jspui/handle/repository/20173.

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Li-ion batteries have become indispensable in our modern, technology-driven world, powering a wide array of devices. As the demand for high-energy-density batteries continues to surge, there is a need to explore advanced cathode materials. In this regard, Li2MnO3 has emerged as a highly promising contender for high-voltage (>4.5 V) cathodes in Li-ion batteries. Li2MnO3 offers several advantages over conventional cathode materials such as LiCoO2 and intercalation-type compounds. Notably, Li2MnO3 possesses a remarkable high-voltage capability, which is crucial for achieving enhanced
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賀安麗. "Investigation of Electrical Performance of x Li2MnO3.(1-x)LiMO2(M=Ni,Co,Mn) Prepared through a Two-stage Process of Co-precipitation and Hydrothermal Methods." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/43919016768411700784.

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碩士<br>國立清華大學<br>材料科學工程學系<br>101<br>Both Li2MnO3 and LiNi1/3Co1/3Mn1/3O2 are layered structure, and they can be mixed to form a solid solution Li2MnO3.LiNi1/3Co1/3Mn1/3O2, which its charge-discharge region between 2 and 4.8 V. This material will release Li2O due to Li2MnO3 irreversible decomposition when voltage are above 4.5 V in the first charge cycle, and that’s the reson for loss of capacity in the first cycle. This experiment is composed by three part. First, I will discuss how the pH value affect the electrochemical performances when preparing Li2MnO3.LiNi1/3Co1/3Mn1/3O2 precursor through
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(8070293), Zhimin Qi. "MANGANESE-BASED THIN FILM CATHODES FOR ADVANCED LITHIUM ION BATTERY." Thesis, 2021.

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<p>Lithium ion batteries have been regarded as one of the most promising and intriguing energy storage devices in modern society since 1990s. A lithium ion battery contains three main components, cathode, anode, and electrolyte, and the performance of battery depends on each component and the compatibility between them. Electrolyte acts as a lithium ions conduction medium and two electrodes contribute mainly to the electrochemical performance. Generally, cathode is the limiting factor in terms of capacity and cell potential, which attracts significant research interests in this field.Different
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Tamilarasan, S. "Investigation of Transition Metal Oxides towards Development of Functional Materials for Visible Light Absorption/Emission and Reversible Redox Lithium Deinsertion/Insertion." Thesis, 2016. http://etd.iisc.ac.in/handle/2005/2962.

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Materials chemistry basically deals with rational design and synthesis of new solids exhibiting various functional properties. A sound knowledge of crystal structures and chemical bonding is needed to understand the properties of materials. Space group, cell parameters and atomic positions provide a basic crystallographic description of the structure. Crystal structure could be described in a detailed way in terms of close packing of anions and occupancy of cations in different coordination sites. The coordination polyhedra and their interconnectivity bring out the interrelationships between d
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Tamilarasan, S. "Investigation of Transition Metal Oxides towards Development of Functional Materials for Visible Light Absorption/Emission and Reversible Redox Lithium Deinsertion/Insertion." Thesis, 2016. http://etd.iisc.ernet.in/handle/2005/2962.

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Materials chemistry basically deals with rational design and synthesis of new solids exhibiting various functional properties. A sound knowledge of crystal structures and chemical bonding is needed to understand the properties of materials. Space group, cell parameters and atomic positions provide a basic crystallographic description of the structure. Crystal structure could be described in a detailed way in terms of close packing of anions and occupancy of cations in different coordination sites. The coordination polyhedra and their interconnectivity bring out the interrelationships between d
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Book chapters on the topic "Li2MnO3"

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Tsai, Shu-Yi, and Kuan-Zong Fung. "Influence of Li2MnO3 Content on Structure and Electrochemistry of Lithium-Rich Layered Oxides for Li-Ion Batteries." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-5775-6_10.

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Villars, P., K. Cenzual, R. Gladyshevskii, et al. "Li2MnGe." In Landolt-Börnstein - Group III Condensed Matter. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-22847-6_373.

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Villars, P., K. Cenzual, J. Daams, et al. "Li2MnF6." In Landolt-Börnstein - Group III Condensed Matter. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-44752-8_330.

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Villars, P., K. Cenzual, J. Daams, et al. "Li2MoO4." In Structure Types. Part 9: Space Groups (148) R-3 - (141) I41/amd. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02702-4_347.

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Chihara, H., and N. Nakamura. "NQRS Data for Li2MoO4 (Subst. No. 2385)." In Substances Containing C10H16 … Zn. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02943-1_1120.

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Upadhyay, Sanjay Kumar. "A New Lithium-based Oxide, Li3MRuO5 (M = Ni, Fe) as a Cathode Material for Li Rechargeable Batteries: Magnetic and Electrical Aspects." In Advancement in Oxide Utilization for Li Rechargeable Batteries. Royal Society of Chemistry, 2025. https://doi.org/10.1039/9781837673612-00269.

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In recent years, the synthesis of layered oxides, Li3M2RuO6 and Li3MRuO5 (M = Co, Ni), based on LiCoO2 and Li2MnO3 relevant to Li-ion batteries (LIBs), has been reported. However, there is an intrinsic crystallographic disorder in this material and for its potential application the knowledge of its electrical and magnetic properties is worthwhile exploring. The present chapter deals with the detailed structural, electrical and magnetic properties of Li3MRuO5 (M = Ni, Fe) in various protocols. Furthermore, the heat capacity measurements are also carried out, which are inconsistent with the magn
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Conference papers on the topic "Li2MnO3"

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Smith, J. L., G. H. Kucera, and N. Q. Minh. "Conductive Oxides for Molten Carbonate Fuel Cell Cathodes." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86089.

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Abstract Development work on alternative cathode materials for the molten carbonate fuel cell is reported. The work has centered on improving and/or stabilizing the conductivity of LiFeO2 and Li2MnO3. The results of a variety of tests on doped samples (Mg, Mn, Cu dopants) are reported. Doping, although not yet optimized, has yielded stable materials with resistivities within a factor of ~2-5 of the original target value. Work is continuing to better understand and optimize these materials and to examine other dopants.
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Ahn, M. H., and K. K. Baek. "Evaluation of Combined Effect of Organic and Inorganic Inhibitors on the Metals Used in Absorption Refrigeration System." In CORROSION 1999. NACE International, 1999. https://doi.org/10.5006/c1999-99097.

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Abstract To develop "environment-friendly" inhibitors for the metals used in the absorption refrigeration system, inhibition efficiencies of six different combinations of inhibitors were evaluated in 64wt.%LiBr solution at 160°C. Double and triple combinations of inhibitors, such as lithium molydate (Li2MoO4 inorganic), lithium hydroxide (LiOH, inorganic), and benzotriazole (BTA, organic) were evaluated for their efficiencies in corrosion inhibition of copper and mild steel. Results from weight-loss tests showed that the double inhibitor combinations were less effective for copper than for mil
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Li, Shiyou, and Dan Lei. "Synthesis and electrochemical characterization of nanosized Li2MnO3 cathode material for lithium ion batteries." In 2ND INTERNATIONAL CONFERENCE ON MATERIALS SCIENCE, RESOURCE AND ENVIRONMENTAL ENGINEERING (MSREE 2017). Author(s), 2017. http://dx.doi.org/10.1063/1.5005239.

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TANG, WEIPING, XIAOJING YANG, and KENTA OOI. "FORMATION AND MECHANISM OF PLATE-FORM MANGANESE OXIDE BY SELECTIVE HYDROTHERMAL LITHIUM EXTRACTION FROM MONOCLINIC Li2MnO3." In Proceedings of the Seventh International Symposium on Hydrothermal Reactions. WORLD SCIENTIFIC, 2003. http://dx.doi.org/10.1142/9789812705228_0006.

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Saroha, Rakesh, Amrish K. Panwar, and Abhishek Bhardwaj. "Synthesis and electrochemical properties of low-temperature synthesized Li2MnO3/MWCNT/super P as a high capacity cathode material for lithium ion batteries." In NATIONAL CONFERENCE ON ADVANCED MATERIALS AND NANOTECHNOLOGY - 2018: AMN-2018. Author(s), 2018. http://dx.doi.org/10.1063/1.5052107.

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Li, Dan, Hongrui Peng, and Guicun Li. "Li2MoO4 coated LiNi0.5Co0.2Mn0.3O2 microspheres with enhanced lithium storage performances." In 6th International Conference on Mechatronics, Materials, Biotechnology and Environment (ICMMBE 2016). Atlantis Press, 2016. http://dx.doi.org/10.2991/icmmbe-16.2016.110.

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"Lityum İyon Pilleri için Bor Katkılı-Katkısız Li2MoO3, Li2TiO3, Li2MoTiO3ve Li2MoTi3O6 Katot Materyallerinin Sentezi, Karakterizasyonu ve Elektrokimyasal Özelliklerinin İncelenmesi." In 3rd International Conference on Scientific and Academic Research ICSAR 2023. All Sciences Academy, 2023. http://dx.doi.org/10.59287/as-proceedings.764.

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Armengaud, E., C. Augier, A. S. Barabash та ін. "Precise measurement of 2ν2β decay of 100Mo with Li2MoO4 low temperature detectors: Preliminary results". У WORKSHOP ON CALCULATION OF DOUBLE-BETA-DECAY MATRIX ELEMENTS (MEDEX’19). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5130966.

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Poda, D. V. "100Mo-enriched Li2MoO4 scintillating bolometers for 0ν2β decay search: From LUMINEU to CUPID-0/Mo projects". У PROCEEDINGS OF THE XXV CONFERENCE ON HIGH-ENERGY PROCESSES IN CONDENSED MATTER (HEPCM 2017): Dedicated to the 60th anniversary of the Khristianovich Institute of Theoretical and Applied Mechanics SB RAS. Author(s), 2017. http://dx.doi.org/10.1063/1.5007642.

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Agnihotri, Shruti, Sangeeta Rattan, and A. L. Sharma. "Effect of MWCNT on prepared cathode material (Li2Mn(x)Fe(1-x)SiO4) for energy storage applications." In INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2015): Proceeding of International Conference on Condensed Matter and Applied Physics. Author(s), 2016. http://dx.doi.org/10.1063/1.4946490.

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