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Artykuły w czasopismach na temat „Spectroscopie du lithium”

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Data publikacji: 19 października 2024

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1

Hanquet, B., B. Tabyaoui, J. C. Caille, M. Farnier, and R. Guilard. "Synthèse stéréosélective de (±) boschnialactone, (±) 7-épiteucriumlactone et (±) 7-épiisoiridomyrmécine. Étude de la stéréochimie par spectroscopie de résonance magnétique nucléaire." Canadian Journal of Chemistry 68, no. 4 (1990): 620–27. http://dx.doi.org/10.1139/v90-095.

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The stereoselective syntheses of (±) boschnialactone 1, (±) 7-epiteucriumlactone 2, and (±) 7-epiisoiridomyrmecine 3 are described. Their preparation involved Stetter's reaction followed by nucleophilic addition of lithium enolates of suitable esters. Silylated reagents are used in the lactonisation step and the observed yields are between 63 and 78%. The proposed structural analysis is not in accord with the results of a previous study. The nuclear magnetic resonance data are determined using ID and 2D proton and carbon NMR experiments. Keywords: stereoselective synthesis, boschnialactone, 7-
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2

Seo, Ambrose, Andrew Meyer, Sujan Shrestha, Ming Wang, Xingcheng Xiao, and Yang-Tse Cheng. "Observation of the surface layer of lithium metal using in situ spectroscopy." Applied Physics Letters 120, no. 21 (2022): 211602. http://dx.doi.org/10.1063/5.0096546.

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We have investigated the surface of lithium metal using x-ray photoemission spectroscopy and optical spectroscopic ellipsometry. Even if we prepare the surface of lithium metal rigorously by chemical cleaning and mechanical polishing inside a glovebox, both spectroscopic investigations show the existence of a few tens of nanometer-thick surface layers, consisting of lithium oxides and lithium carbonates. When lithium metal is exposed to room air (∼50% moisture), in situ real-time monitoring of optical spectra indicates that the surface layer grows at a rate of approximately 24 nm/min, presumab
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3

Zhang, Li, Tao Qian, Xingyu Zhu, et al. "In situ optical spectroscopy characterization for optimal design of lithium–sulfur batteries." Chemical Society Reviews 48, no. 22 (2019): 5432–53. http://dx.doi.org/10.1039/c9cs00381a.

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Recent advances in optimal design of lithium–sulfur batteries with the aid of in situ optical spectroscopic techniques, including Raman, infrared and ultraviolet-visible spectroscopies, are systematically summarized.
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4

Meyer, Lydia, Collin Kinder, and Jason Morgan Porter. "Chemometric and Machine Learning Analysis of Lithium Concentration and Solvation Behavior in Li-Ion Battery Electrolytes." ECS Meeting Abstracts MA2022-02, no. 6 (2022): 618. http://dx.doi.org/10.1149/ma2022-026618mtgabs.

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The demand for batteries is rapidly growing across a range of technologies. The increasingly diverse use cases for batteries require various capabilities, particularly requirements for high energy densities, that are currently unmet by traditional Li-ion batteries. Electrolyte stability proves to be a bottleneck for battery advancement towards energy dense chemistries beyond Li-ion, including metal anodes. In situ spectroscopy tools, such as Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy, and X-ray spectroscopy, have provided insight into critical molecular-level interactio
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5

Cai Jiahua, 才家华, 张保龙 Zhang Baolong, 耿春艳 Geng Chunyan, 郝思博 Hao Sibo, 陈赛 Chen Sai та 吴晓君 Wu Xiaojun. "铌酸锂强场太赫兹非线性时域光谱系统". Chinese Journal of Lasers 50, № 17 (2023): 1714012. http://dx.doi.org/10.3788/cjl230435.

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6

Muhammad, F. H., A. F. M. Fadzil, and Tan Winie. "FTIR and Electrical Studies of Hexanoyl Chitosan-Based Nanocomposite Polymer Electrolytes." Advanced Materials Research 1043 (October 2014): 36–39. http://dx.doi.org/10.4028/www.scientific.net/amr.1043.36.

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Films of hexanoyl chitosan-based polymer electrolytes were prepared using solution casting technique. The interactions between hexanoyl chitosan-lithium perchlorate (LiClO4) and dimethyl carbonate (DMC)-lithium perchlorate (LiClO4) were investigated using Fourier transform infrared spectroscopy (FTIR). The FTIR results showed that there is a possible complexation between the electron donor of hexanoyl chitosan and DMC with lithium salt due to the shifting in the wavenumber and changes in the intensity of the infrared bands. The obtained spectroscopic data has been correlated with the conductiv
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7

Katime-Santrich, Orlando J., Bruno V. Castilho, Carlos A. O. Torres, and Germano R. Quast. "Photometric and spectroscopic analysis of the stellar association AB Doradus." Proceedings of the International Astronomical Union 5, S265 (2009): 370–71. http://dx.doi.org/10.1017/s1743921310000979.

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AbstractWe present the stellar parameters and lithium abundance for 23 stars of the young stellar association AB Doradus, determined by photometry and spectroscopy. The photometric data was obtained at OPD/LNA and/or from the literature and the spectroscopic data was obtained at La silla/ESO and at OPD/LNA. The parameters were determined using photometric calibrations, line ratios, curves of growth and spectral synthesis. Our results confirm that the selected stars are probably association members, showing an uniform metallicity and lithium depletion consistent with 50 Myears
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8

Fritzke, Jana Beatrice, Sunita Dey, Christopher A. O'Keefe, and Clare P. Grey. "NMR Spectroscopic Investigations of the Performance Limiting Mechanisms of Lithium-Sulfur Batteries." ECS Meeting Abstracts MA2023-02, no. 55 (2023): 2692. http://dx.doi.org/10.1149/ma2023-02552692mtgabs.

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During the past decades, the development of alternative energy sources has become increasingly important as the growing consumption of non-regenerative fossil energy poses a threat to the environment. Hence, developing of next-generation batteries featuring high capacity, reduced costs and improved safety, such as in lithium-sulfur batteries, is of utmost importance. The benefits of lithium-sulfur batteries have led to widespread efforts to understand the fundamentals of the sulfur redox chemistry that drives their operation, as capacity fade has been observed in almost all Li-S batteries.[1]
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9

Bezdomnikov, Alexey A., Liudmila I. Demina, Lyudmila G. Kuz’mina, Galina V. Kostikova, Valeriy I. Zhilov, and Aslan Yu Tsivadze. "Study of Lithium-Extraction Systems Based on Benzo-15-Crown-5 Ether and Alkylimidazolium-Based Ionic Liquid." Molecules 28, no. 3 (2023): 935. http://dx.doi.org/10.3390/molecules28030935.

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The extraction of lithium from aqueous solutions of LiNTf2 and LiCl salts using benzo-15-crown-5 ether (B15C5) as an extractant in [C8mim][NTf2] ionic liquid was studied. The transition of the extractant into the aqueous phase and the distribution of Cl− ions during lithium extraction from LiCl solutions were determined. LiNTf2 complexes with B15C5 with different LiNTf2:B15C5 ratios were isolated for the first time and characterized via X-ray diffraction and IR spectroscopy. Differences in the extraction process of LiCl and LiNTf2 were determined via an infrared spectroscopic study of the extr
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10

Jin, Yan, Lin Zhou, Jianyu Yu, et al. "In operando plasmonic monitoring of electrochemical evolution of lithium metal." Proceedings of the National Academy of Sciences 115, no. 44 (2018): 11168–73. http://dx.doi.org/10.1073/pnas.1808600115.

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The recent renaissance of lithium metal batteries as promising energy storage devices calls for in operando monitoring and control of electrochemical evolution of lithium metal morphologies. While the development of plasmonics has led to significant advancement in real-time and ultrasensitive chemical and biological sensing and surface-enhanced spectroscopies, alkali metals featured by ideal free electron gas models have long been regarded as promising plasmonic materials but seldom been explored due to their high chemical reactivity. Here, we demonstrate the in operando plasmonic monitoring o
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11

Yildiz, Aysegul. "Phosphoinositide metabolism, lithium and manic depressive illness." Spectroscopy 16, no. 3-4 (2002): 307–16. http://dx.doi.org/10.1155/2002/535201.

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Physiology underlying manic depressive illness and treating effects of its most commonly used remedy – “lithium” is yet to be elucidated. Recent years of psychopharmacology research witnessed sparkling developments in our understanding of the mechanisms underlying lithium’s mood stabilizing effects. Recent data on molecular biology andin vivomagnetic resonance spectroscopy suggest that some of the initial actions of lithium may occur through the inhibition of the enzyme inositol monophosphatase (IMPase) and reduction ofmyo–inositol, which in turn initiate a cascade of events at different level
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12

Mott, A., M. Steffen, E. Caffau, and K. G. Strassmeier. "Improving spectroscopic lithium abundances." Astronomy & Astrophysics 638 (June 2020): A58. http://dx.doi.org/10.1051/0004-6361/201937047.

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Context. Accurate spectroscopic lithium abundances are essential in addressing a variety of open questions, such as the origin of a uniform lithium content in the atmospheres of metal-poor stars (Spite plateau) or the existence of a correlation between the properties of extrasolar planetary systems and the lithium abundance in the atmosphere of their host stars. Aims. We have developed a tool that allows the user to improve the accuracy of standard lithium abundance determinations based on 1D model atmospheres and the assumption of local thermodynamic equilibrium (LTE) by applying corrections
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13

Pagot, Gioele, Sara Tonello, Keti Vezzù, and Vito Di Noto. "A New Glass-Forming Electrolyte Based on Lithium Glycerolate." Batteries 4, no. 3 (2018): 41. http://dx.doi.org/10.3390/batteries4030041.

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The detailed study of the interplay between the physicochemical properties and the long-range charge migration mechanism of polymer electrolytes able to carry lithium ions is crucial in the development of next-generation lithium batteries. Glycerol exhibits a number of features (e.g., glass-forming behavior, low glass transition temperature, high flexibility of the backbone, and efficient coordination of lithium ions) that make it an appealing ion-conducting medium and a challenging building block in the preparation of new inorganic–organic polymer electrolytes. This work reports the preparati
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14

Grünzel, Tobias, Young Joo Lee, Karsten Kuepper, and Julien Bachmann. "Preparation of electrochemically active silicon nanotubes in highly ordered arrays." Beilstein Journal of Nanotechnology 4 (October 16, 2013): 655–64. http://dx.doi.org/10.3762/bjnano.4.73.

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Silicon as the negative electrode material of lithium ion batteries has a very large capacity, the exploitation of which is impeded by the volume changes taking place upon electrochemical cycling. A Si electrode displaying a controlled porosity could circumvent the difficulty. In this perspective, we present a preparative method that yields ordered arrays of electrochemically competent silicon nanotubes. The method is based on the atomic layer deposition of silicon dioxide onto the pore walls of an anodic alumina template, followed by a thermal reduction with lithium vapor. This thermal reduct
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15

Gomes, Luisa Larissa Arnaldo, Victor Sanctis, Huidong Dai, and Sanjeev Mukerjee. "Shedding Light on Lithium-Sulfur Battery Dynamics: Real-Time Insights through in-Situ UV-Vis Spectroscopy on Modified Lab Equipment." ECS Meeting Abstracts MA2024-01, no. 53 (2024): 2773. http://dx.doi.org/10.1149/ma2024-01532773mtgabs.

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In current post-lithium-ion research, the focus is directed toward Lithium-Sulfur (Li-S) batteries, motivated by their outstandingly high energy density (2640 Wh/kg) and the widespread availability of sulfur in the Earth's crust. Moreover, in-situ UV-Vis spectroscopy has proven to be instrumental, allowing for the real-time observation of alterations in the chemical composition of various battery components during operational cycles [1,2]. Our current study delves into the influence of solvent selection, particularly donor and acceptor numbers, in formulating gel polymer electrolytes for Lithi
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16

HUANG Yi, 黄毅, 吴侃 WU Kan, 肖泽宇 XIAO Zeyu, 李铁映 LI Tieying, 蔡明璐 CAI Minglu та 陈建平 CHEN Jianping. "基于调制光频梳的薄膜铌酸锂波导超连续谱研究". ACTA PHOTONICA SINICA 52, № 5 (2023): 0552221. http://dx.doi.org/10.3788/gzxb20235205.0552221.

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17

Reich, Hans J., and Wesley L. Whipple. "Mechanism of the lithium–iodine exchange in an iodothiophene." Canadian Journal of Chemistry 83, no. 9 (2005): 1577–87. http://dx.doi.org/10.1139/v05-173.

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Solutions of 2-lithio-5-methylthiophene (4) were characterized using DNMR techniques and shown to be a mixture of monomer and dimer in THF–Et2O (3:2). The hypervalent iodine ate complex 5 (Ar2I–Li+), a presumed intermediate in the Li–I exchange with 2-iodo-5-methylthiophene, was observed by 13C and 7Li NMR spectroscopy at low temperatures (–130 °C). At higher temperatures, the ate complex coalesced with 2-lithio-5-methylthiophene. A kinetic scheme was developed, which accounts for the exchange of the monomer 4M, dimer 4D, and 2-iodo-5-methylthiophene (6) with the ate complex 5. The rates of th
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18

Meierl, Julia, and Ingo Krossing. "Conductivity Improvement of LiBF4 Containing Electrolyte for Enhanced Application in Lithium-Ion Batteries." ECS Meeting Abstracts MA2023-02, no. 65 (2023): 3081. http://dx.doi.org/10.1149/ma2023-02653081mtgabs.

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In view of a possible cost reduction and safety improvement of Lithium-Ion-Batteries (LIBs), the exchangeability of the common electrolyte salt lithium hexafluorophosphate LiPF6 with lithium tetrafluoroborate LiBF4 was investigated.[1,2] Replacement of LiPF6 with LiBF4 was considered due to the salt’s superior thermal stability and moisture stability compared to LiPF6. While LiBF4 was repeatedly studied for application in LIBs, low conductivity compared to analogous electrolyte solutions with LiPF6 is referred to as one of the main drawbacks of LiBF4 electrolytes.[1,3] These differences in ele
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19

Biddinger, Elizabeth J., Michael Keating, Elijah Bernard, Sharon Lall-Ramnarine, and Robert J. Messinger. "Ionic Liquid - Glyme Mixtures to Modify Solvation Chemistry, Electrochemical and Physiochemical Properties in Lithium Containing Electrolytes." ECS Meeting Abstracts MA2023-02, no. 56 (2023): 2728. http://dx.doi.org/10.1149/ma2023-02562728mtgabs.

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Pyrrolidinium-based ionic liquids are an intriguing material for lithium-based battery electrolytes due to their inherit non-flammability and large electrochemical windows. Poor lithium-ion transport in ionic liquid-based electrolytes hinder the effectiveness of these electrolytes. Solvate ionic liquids were introduced as a subclass of ionic liquids consisting of high concentrations of lithium salts and glymes. For example, the solvate ionic liquid Li(G4)TFSI is an equimolar ratio of lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) and tetraethylene glycol dimethyl ether (G4). In this work,
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20

Zhang, Shuoshuo, and John Thomas Sirr Irvine. "Characterisation of Molten Lithium Carbonate Corrosion on SiC Heating Elements Using Raman Spectroscopy." ECS Meeting Abstracts MA2023-02, no. 11 (2023): 1065. http://dx.doi.org/10.1149/ma2023-02111065mtgabs.

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The synthesis of lithium battery materials involves the use of muffle furnaces operating with SiC type heating elements. Usually, the industrial SiC heating element is protected by passive oxidation forming a protective silica film on the surface of the element. However, this strategy is not suitable for heating elements that operate in a Li-rich environment. A preliminary study has recently been completed to develop an understanding on the degradation of silicon carbide heating elements under the exposure to lithia. After basic characterisation of the SiC rod and its oxidation in air, its rea
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21

Brooks, P., MJ Gallagher та A. Sarroff. "Organophosphorus Intermediates. IX. The Cleavage of α,ω-Bisdiphenylphosphinoalkanes With Lithium. A 13P N.M.R. Study". Australian Journal of Chemistry 40, № 8 (1987): 1341. http://dx.doi.org/10.1071/ch9871341.

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The title phosphines, Ph2P(CH2).PPh2 (n = 2-5), react with lithium in tetrahydrofuran to give the corresponding 1, n-dilithio-1, n-di(phenylphosphines) directly with little or no intermediacy of the 1-lithio- 1-phenyl- n- diphenylphosphinoalkanes which can, however, be obtained by arylation of the diphosphides. Methylenebisdiphenylphosphine and 1,4-diphenyl-1,4-diphosphinane undergo exclusive phosphorus-alkyl carbon cleavage. The chemistry and 31P n.m.r. spectroscopy of the diphosphides are described and the mechanism of the cleavage reaction is discussed. Some cleavage reactions in liquid amm
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22

Vargas-Barbosa, Nella Marie, Sebastian Puls, and Henry Michael Woolley. "Hybrid Material Concepts for Thiophosphate-Based Solid-State Batteries." ECS Meeting Abstracts MA2023-01, no. 6 (2023): 984. http://dx.doi.org/10.1149/ma2023-016984mtgabs.

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Solid-state batteries (SSBs) could replace conventional lithium-ion batteries due to the possibility of increasing the energy density of the cells by using lithium metal as the anode material.[1] Among the many electrolyte candidates for lithium SSBs, the lithium thiophosphates are particularly interesting due to their high ionic conductivities at room temperature (>1 mS/cm). However, the (electro)chemical stability of these solid electrolytes is limited and not fully compatible with state-of-the-art high-potential cathode active materials[2] or the lithium metal anode.[3] At the cell level
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23

Damri, Odeya, Nofar Shemesh, and Galila Agam. "Is There Justification to Treat Neurodegenerative Disorders by Repurposing Drugs? The Case of Alzheimer’s Disease, Lithium, and Autophagy." International Journal of Molecular Sciences 22, no. 1 (2020): 189. http://dx.doi.org/10.3390/ijms22010189.

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Lithium is the prototype mood-stabilizer used for acute and long-term treatment of bipolar disorder. Cumulated translational research of lithium indicated the drug’s neuroprotective characteristics and, thereby, has raised the option of repurposing it as a drug for neurodegenerative diseases. Lithium’s neuroprotective properties rely on its modulation of homeostatic mechanisms such as inflammation, mitochondrial function, oxidative stress, autophagy, and apoptosis. This myriad of intracellular responses are, possibly, consequences of the drug’s inhibition of the enzymes inositol-monophosphatas
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24

Tezcan, Tugba, Banu Sezer, Ugur Tamer, and Ismail Hakki Boyaci. "Rapid and Reliable Detection of Lithium in Water Sources Using Surface Enhanced Laser Induced Breakdown Spectroscopy (SENLIBS) on Aluminium Substrate." International Journal of Engineering and Technology 15, no. 1 (2023): 17–21. http://dx.doi.org/10.7763/ijet.2023.v15.1212.

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Lithium is one of the most important materials in re-chargeable battery as well as pharmaceutical and automotive industry. Due to the increasing demand for lithium for industrial production and daily usage, the reliable detection and recovery of lithium, a non-renewable metal, from water resources is an essential requirement. In this work, we performed lithium detection using surface enhanced laser induced breakdown spectroscopy on aluminium (Al) substrate for three different matrices, sea, river and municipal water. We also examined the matrix effect on sensitivity of lithium detection. Lithi
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25

Wu, Zhiyun, Hellmut Eckertb, Bernd D. Moselb, Manfred H. Möllera, and Rainer Pöttgena. "Magnetic and Spectroscopic Properties of LiAuSn." Zeitschrift für Naturforschung B 58, no. 6 (2003): 501–4. http://dx.doi.org/10.1515/znb-2003-0602.

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The stannide LiAuSn was synthesized by reaction of the elements in a sealed tantalum tube. Magnetic susceptibility measurements reveal Pauli paramagnetism. LiAuSn shows a single 119Sn Mössbauer signal at an isomer shift of 2.12(3) mm/s subject to a quadrupole splitting of 1.51(2) mm/s. The 119Sn MAS NMR spectrum reveals a strong Knight shift of 5183 ppm, The unique lithium site present in the crystal structure is reflected by a single 7Li NMR signal at 9.8 ppm. While a significant shift of this resonance towards larger frequencies at higher temperature indicates that the s-spin density at the
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26

Abdelghany, A. M. "Structural and physical studies of PVC/PVDF doped Nano lithium salt for electrochemical applications." JOURNAL OF ADVANCES IN PHYSICS 13, no. 3 (2017): 4718–25. http://dx.doi.org/10.24297/jap.v13i3.5817.

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 AbstractPolymer blend of poly (vinyl chloride) and poly(vinylidene fluoride) of nominal composition (30PVC/70PVDF) wt:wt were prepared in the form of thin films using casting technique. Samples of the same composition doped with gradient concentration of nano lithium salt (LTO) were prepared and studied. Proposed filler was characterized using Fourier transform infrared spectroscopy (FTIR), UV/vis. optical absorption, X-ray diffraction (XRD), Transmission electron microscopy (TEM) and Electron diffraction (ED). Obtained data approve the crystalline nano structure of filler with a cubic stru
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27

Petrenko, E. M., and V. A. Semenova. "Diagnostics of Advanced Power Intensive Power Sources Based on the Acoustic Spectroscopy Method." Herald of the Bauman Moscow State Technical University. Series Natural Sciences, no. 6 (99) (December 2021): 121–27. http://dx.doi.org/10.18698/1812-3368-2021-6-121-127.

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Objective of this article is to develop a method for lithium chemical current sources diagnostics, which would ensure high reliability in assessing their technical state (primarily, the discharge degree) close to potentially achievable introduction of the acoustic spectroscopy method. Today, microcalorimetric studies and methods of impedance and noise spectroscopy make it possible to predict the lithium chemical current sources service life. However, implementation of the microcalorimetric studies result requires a lot of time accompanied by using stationary and large-size equipment, which is
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28

Thanh Nguyen, Huynh Le. "HYDROTHERMAL SYNTHESIS OF NANO BILAYERED V2O5 AND ELECTROCHEMICAL BEHAVIOR IN NON–AQUEOUS ELECTROLYTES LiPF6 AND NaClO4." Vietnam Journal of Science and Technology 55, no. 1B (2018): 24. http://dx.doi.org/10.15625/2525-2518/55/1b/12087.

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This work aimed to prepare bilayered V2O5 by hydrothermal route from vanadium (III) chloride (VCl3). According to XRD results, bilayered V2O­5 showed a large interlayer spacing around 11.3 Å. The electrochemical properties of bilayered V2O5 were carried out by cyclic voltammetry and charge–discharge testing in non–aqueous electrolytes LiPF6 and NaClO4. The curves charge–discharge showed that mechanism of insertion/extraction of Li+ ions and Na+ ions were occurred on a solution solid without the phase transition. Moreover, specific capacity for lithium and sodium intercalation of bilayered V2O5
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Grisoni, V., F. Matteucci, D. Romano, and X. Fu. "Evolution of lithium in the Milky Way halo, discs, and bulge." Monthly Notices of the Royal Astronomical Society 489, no. 3 (2019): 3539–46. http://dx.doi.org/10.1093/mnras/stz2428.

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Abstract In this work, we study the Galactic evolution of lithium by means of chemical evolution models in the light of the most recent spectroscopic data from Galactic stellar surveys. We consider detailed chemical evolution models for the Milky Way halo, discs, and bulge, and we compare our model predictions with the most recent spectroscopic data for these different Galactic components. In particular, we focus on the decrease of lithium at high metallicity observed by the AMBRE Project, the Gaia-ESO Survey, and other spectroscopic surveys, which still remains unexplained by theoretical mode
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M, Selvamurugan, Dhilip Kumar R, Karthikeyan C, and Karuppuchamy S. "SYNTHESIS AND CHARACTERIZATION OF LITHIUM TITANATE (LTO) NANOCOMPOSITES VIA SOLUTION GROWTH ROUTE FOR Li-ION BATTERIES." Kongunadu Research Journal 4, no. 3 (2017): 10–13. http://dx.doi.org/10.26524/krj225.

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The novel bimetal oxide composite of Li4Ti5O12 was successfully synthesized by solution growth technique. The structural and microstructural properties of synthesized powders were characterized by powder X-ray diffraction (XRD), fourrier transform infrared spectroscopy (FT-IR), Raman spectroscopy,scanning electron microscopy (SEM) and energy dispersive X-ray-spectroscopy (EDX). The electrochemical performance of the Li4Ti5O12 anode was investigated using galvanostatic charge-discharge techniques. The electrochemical property of the Lithium titanate anode was investigated. The good electrochemi
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Zhang, Ming, Yanshuo Liu, Dezhi Li, et al. "Electrochemical Impedance Spectroscopy: A New Chapter in the Fast and Accurate Estimation of the State of Health for Lithium-Ion Batteries." Energies 16, no. 4 (2023): 1599. http://dx.doi.org/10.3390/en16041599.

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Lithium-ion batteries stand out from other clean energy sources because of their high energy density and small size. With the increasing application scope and scale of lithium-ion batteries, real-time and accurate monitoring of its state of health plays an important role in ensuring the healthy and stable operation of an energy storage system. Due to the interaction of various aging reactions in the aging process of lithium-ion batteries, the capacity attenuation shows no regularity. However, the traditional monitoring method is mainly based on voltage and current, which cannot reflect the int
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Fabre, Cécile, Nour Eddine Ourti, Julien Mercadier, et al. "Analyses of Li-Rich Minerals Using Handheld LIBS Tool." Data 6, no. 6 (2021): 68. http://dx.doi.org/10.3390/data6060068.

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Lithium (Li) is one of the latest metals to be added to the list of critical materials in Europe and, thus, lithium exploration in Europe has become a necessity to guarantee its mid- to long-term stable supply. Laser-induced breakdown spectroscopy (LIBS) is a powerful analysis technique that allows for simultaneous multi-elemental analysis with an excellent coverage of light elements (Z < 13). This data paper provides more than 4000 LIBS spectra obtained using a handheld LIBS tool on approximately 140 Li-content materials (minerals, powder pellets, and rocks) and their Li concentrations. Th
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33

Liu, Xiaoming, Yan Chen, Zachary D. Hood, et al. "Elucidating the mobility of H+ and Li+ ions in (Li6.25−xHxAl0.25)La3Zr2O12via correlative neutron and electron spectroscopy." Energy & Environmental Science 12, no. 3 (2019): 945–51. http://dx.doi.org/10.1039/c8ee02981d.

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Yan, T. S., J. R. Shi, L. Wang, et al. "Discovery of Nine Super Li-rich Unevolved Stars from the LAMOST Survey." Astrophysical Journal Letters 929, no. 1 (2022): L14. http://dx.doi.org/10.3847/2041-8213/ac63a5.

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Abstract Based on the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) medium-resolution spectroscopic survey (MRS), we report the discovery of nine super Li-rich unevolved stars with A(Li) > 3.8 dex. These objects show unusually high levels of lithium abundances, up to three times higher than the meteoritic value of 3.3 dex, which indicates that they must have experienced a history of lithium enrichment. It is found that seven of our program stars are fast rotators with v sin i > 9 km s−1, which suggests that the accretion of circumstellar matter may be the main contri
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35

Gomes, Luisa Larissa Arnaldo, Huidong Dai, Victor Sanctis, and Sanjeev Mukerjee. "Operando Raman and in-Situ UV-Vis Spectroscopy Unveil the Impact of Solvent Donor and Acceptor Numbers on Gel Polymer Electrolytes in Lithium-Sulfur Batteries." ECS Meeting Abstracts MA2024-01, no. 2 (2024): 388. http://dx.doi.org/10.1149/ma2024-012388mtgabs.

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Lithium-sulfur (Li-S) batteries boast a specific capacity five times greater than current Li-intercalation systems. Still, practical implementation faces challenges tied to liquid electrolytes, i.e., lithium metal dendrites formation, polysulfide redox-shuttle, and flammability [1]. Thus, we focus on developing biodegradable gel polymer electrolytes to overcome these issues, fostering eco-friendly, safer, and more effective energy storage solutions. Polycaprolactone (PCL) emerges as a promising GPE candidate due to its biodegradable nature and broad stability range (~5V vs Li0/Li+). Our curren
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36

Gherardelli, Camila, Pedro Cisternas, and Nibaldo C. Inestrosa. "Lithium Enhances Hippocampal Glucose Metabolism in an In Vitro Mice Model of Alzheimer’s Disease." International Journal of Molecular Sciences 23, no. 15 (2022): 8733. http://dx.doi.org/10.3390/ijms23158733.

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Impaired cerebral glucose metabolism is an early event that contributes to the pathogenesis of Alzheimer’s disease (AD). Importantly, restoring glucose availability by pharmacological agents or genetic manipulation has been shown to protect against Aβ toxicity, ameliorate AD pathology, and increase lifespan. Lithium, a therapeutic agent widely used as a treatment for mood disorders, has been shown to attenuate AD pathology and promote glucose metabolism in skeletal muscle. However, despite its widespread use in neuropsychiatric disorders, lithium’s effects on the brain have been poorly charact
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Fedoseeva, Yuliya V., Elena V. Shlyakhova, Anna A. Makarova, Alexander V. Okotrub, and Lyubov G. Bulusheva. "X-ray Spectroscopy Study of Defect Contribution to Lithium Adsorption on Porous Carbon." Nanomaterials 13, no. 19 (2023): 2623. http://dx.doi.org/10.3390/nano13192623.

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Lithium adsorption on high-surface-area porous carbon (PC) nanomaterials provides superior electrochemical energy storage performance dominated by capacitive behavior. In this study, we demonstrate the influence of structural defects in the graphene lattice on the bonding character of adsorbed lithium. Thermally evaporated lithium was deposited in vacuum on the surface of as-grown graphene-like PC and PC annealed at 400 °C. Changes in the electronic states of carbon were studied experimentally using surface-sensitive X-ray photoelectron spectroscopy and near-edge X-ray absorption fine structur
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38

Aurbach, Doron, and Arie Zaban. "Impedance spectroscope of lithium electrodes." Journal of Electroanalytical Chemistry 367, no. 1-2 (1994): 15–25. http://dx.doi.org/10.1016/0022-0728(93)02998-w.

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Zheng, Yijing, Lisa Pfäffl, Hans Jürgen Seifert, and Wilhelm Pfleging. "Lithium Distribution in Structured Graphite Anodes Investigated by Laser-Induced Breakdown Spectroscopy." Applied Sciences 9, no. 20 (2019): 4218. http://dx.doi.org/10.3390/app9204218.

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For the development of thick film graphite electrodes, a 3D battery concept is applied, which significantly improves lithium-ion diffusion kinetics, high-rate capability, and cell lifetime and reduces mechanical tensions. Our current research indicates that 3D architectures of anode materials can prevent cells from capacity fading at high C-rates and improve cell lifespan. For the further research and development of 3D battery concepts, it is important to scientifically understand the influence of laser-generated 3D anode architectures on lithium distribution during charging and discharging at
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40

Pulst, Martin, Hossam Elgabarty, Daniel Sebastiani, and Jörg Kressler. "The annular tautomerism of lithium 1,2,3-triazolate." New Journal of Chemistry 41, no. 4 (2017): 1430–35. http://dx.doi.org/10.1039/c6nj03732a.

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Rüter, Christian E., Dominik Brüske, Sergiy Suntsov, and Detlef Kip. "Investigation of Ytterbium Incorporation in Lithium Niobate for Active Waveguide Devices." Applied Sciences 10, no. 6 (2020): 2189. http://dx.doi.org/10.3390/app10062189.

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In this work, we report on an investigation of the ytterbium diffusion characteristics in lithium niobate. Ytterbium-doped substrates were prepared by in-diffusion of thin metallic layers coated onto x- and z-cut congruent substrates at different temperatures. The ytterbium profiles were investigated in detail by means of secondary neutral mass spectroscopy, optical microscopy, and optical spectroscopy. Diffusion from an infinite source was used to determine the solubility limit of ytterbium in lithium niobate as a function of temperature. The derived diffusion parameters are of importance for
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42

Gnedenkov, Sergei Vasil'evich, Denis Pavlovich Opra, Sergei Leonidovich Sinebryukhov, Aleksandr Konstantinovich Tsvetnikov, Aleksandr Yur'evich Ustinov, and Valentin Ivanovich Sergienko. "The lithium batteries based on the gidrolytic lignin." Electrochemical Energetics 13, no. 1 (2013): 23–33. http://dx.doi.org/10.18500/1608-4039-2013-13-1-23-33.

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In this paper the possibility of applying of hydrolysis lignin as the lithium battery cathode material was demonstrated for the first time. Hydrolysis lignin features have been investigated by impedance spectroscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. Electrochemical characterization was carried out at room temperature using 1M LiBF4 in γ-butyrolacton electrolyte system. The chemical composition of cathode materials upon battery discharge down to 0.9 V was studied by the X-ray photoelectron spectroscopy and Infrared spectroscopy. The suggestions on possible
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Arise, Ichiro, Yuto Miyahara, Kohei Miyazaki, and Takeshi Abe. "Dendrite Growth of Lithium through Separator Using In Situ Measurement Technique." Journal of The Electrochemical Society 169, no. 2 (2022): 020546. http://dx.doi.org/10.1149/1945-7111/ac52c4.

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In situ techniques as a clue to clarify the mechanism of lithium dendrite growth through the separator were applied. The aim of this work was to clarify the dendrite growth mechanism through the separator and to investigate and discuss the relationship between lithium intercalation into graphite and lithium deposition on the graphite surface, applying in situ and ex situ optical microscope and in situ electrochemical impedance spectroscopy. It was visually characterized the lithium dendrite growth by the ionic transfer through the separator and obtained the fundamental knowledge by in situ opt
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44

Li, Jie. "Towards Highly Efficient Lithium-Ion Batteries: Focusing on Electrolytes." Highlights in Science, Engineering and Technology 29 (January 31, 2023): 175–83. http://dx.doi.org/10.54097/hset.v29i.4553.

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Lithium-ion is various advantages and is required by batteries such as high power, so lithium-ion plays a crucial role in lithium-ion batteries. The electrolyte is one of the core materials of lithium secondary battery and primary battery capacity, improves the mobility between the mobile anode and cathode, and plays the role of medium material. The lithium-ion battery's electrolyte, a crucial component, transports ion conduction current between the positive and negative electrodes. Choosing the right electrolyte is also essential for achieving high energy and power densities, long cycle lives
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45

Ni’mah, Y. L., S. Suprapto, H. A. Putri, F. K. Rahmah, and A. Hardiansyah. "THE APPLICATION OF LiMn2O4 SYNTHESIZED FROM MANGANESE ORE FOR LITHIUM- ION BATTERIES CATHODE." RASAYAN Journal of Chemistry 15, no. 04 (2022): 2203–9. http://dx.doi.org/10.31788/rjc.2022.1546945.

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Lithium manganese oxide (LiMn2O4) synthesized from manganese ore has been successfully applied for cathode materials of lithium-ion batteries. LiMn2O4 was obtained by reacting lithium carbonate (Li2CO3) and manganese oxide (MnO2) using a solid-state reaction. The structure characterization of LiMn2O4 was carried out using X-ray diffraction (XRD) and Raman spectroscopy. The thermal properties of cathode material were studied using Thermal Gravimetric Analysis (TGA). The electrochemical properties were analyzed using cyclic voltammetry (CV), charge-discharge (CD), and electrochemical impedance s
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46

Perez, Israel, Victor Sosa, Fidel Gamboa, Jose Luis Enriquez-Carrejo, and Juan Carlos Mixteco Sanchez. "Role of lithium intercalation in fluorine-doped tin oxide thin films: Ab initio calculations and experiment." Journal of Chemical Physics 156, no. 9 (2022): 094701. http://dx.doi.org/10.1063/5.0085531.

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Using a combination of experimental techniques and density functional theory (DFT) calculations, the influence of lithium insertion on the electronic and electrochemical properties of fluorine-doped SnO2 (FTO) is assessed. For this purpose, we investigate the electrochromic behavior of a commercial FTO electrode embedded in a solution of lithium perclorate (LiClO4). The electrochromic properties are evaluated by UV–vis spectroscopy, cyclic voltammetry, and chronoamperometry. These tests show that FTO exhibits electrochromism with a respectable coloration efficiency ( η = 47.9 cm2/C at 637 nm).
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Moritomo, Yutaka, Masamitsu Takachi, Yutaro Kurihara, and Tomoyuki Matsuda. "Synchrotron-Radiation X-Ray Investigation of Li+/Na+Intercalation into Prussian Blue Analogues." Advances in Materials Science and Engineering 2013 (2013): 1–17. http://dx.doi.org/10.1155/2013/967285.

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Prussian blue analogies (PBAs) are promising cathode materials for lithium ion (LIB) and sodium ion (SIB) secondary batteries, reflecting their covalent and nanoporous host structure. With use of synchrotron-radiation (SR) X-ray source, we investigated the structural and electronic responses of the host framework of PBAs against Li+and Na+intercalation by means of the X-ray powder diffraction (XRD) and X-ray absorption spectroscopy (XAS). The structural investigation reveals a robust nature of the host framework against Li+and Na+intercalation, which is advantageous for the stability and lifet
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Charoy, Bernard, Marc Chaussidon, and Fernando Noronha. "Lithium zonation in white micas from the Argemela microgranite (central Portugal): an in-situ ion-, electron-microprobe and spectroscopic investigation." European Journal of Mineralogy 7, no. 2 (1995): 335–52. http://dx.doi.org/10.1127/ejm/7/2/0335.

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Badilescu, Simona, Khalid Boufker, P. V. Ashrit, Fernand E. Girouard, and Vo-Van Truong. "FT-IR/ATR Study of Lithium Intercalation into Molybdenum Oxide Thin Film." Applied Spectroscopy 47, no. 6 (1993): 749–52. http://dx.doi.org/10.1366/0003702934066866.

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Molybdenum oxide thin films are deposited by thermal evaporation and sputtering, and lithium is inserted by a dry lithiation method. The FT-IR/ATR technique is used to study the formation and evolution of lithium bronze and lithium molybdate species. The mechanism of lithium intercalation is found to be dependent on the method of film preparation. The involvement of water molecules in the kinetics of lithiation is stressed.
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Choi, Hyun Chul, Young Mee Jung, and Seung Bin Kim. "Characterization of the Electrochemical Reactions in the Li1+xV3O8/Li Cell by Soft X-ray Absorption Spectroscopy and Two-Dimensional Correlation Analysis." Applied Spectroscopy 57, no. 8 (2003): 984–90. http://dx.doi.org/10.1366/000370203322258959.

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We applied soft X-ray absorption spectroscopy (XAS) and two-dimensional (2D) correlation analysis to the first lithium insertion–extraction cycle in a Li1+xV3O8/Li cell in order to investigate the electrochemical reactions of lithium with the Li1+xV3O8 electrode. The V LII,III-edge and O K-edge spectra of the Li1+xV3O8 electrode were obtained for varying electrode lithium content. The insertion of lithium leads to the reduction of the V5+ species present in the pristine Li1+xV3O8 electrode, and to the red shift and the broadening of the spectral features of the V LII,III edge compared to those
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