Tag: 0-100

The author of 《Excimer Formation in Carboxylic Acid-Functionalized Perylene Diimides Attached to Silicon Dioxide Nanoparticles》 were Gorman, Jeffrey; Pandya, Raj; Allardice, Jesse R.; Price, Michael B.; Schmidt, Timothy W.; Friend, Richard H.; Rao, Akshay; Davis, Nathaniel J. L. K.. And the article was published in Journal of Physical Chemistry C in 2019. Electric Literature of C5H6O2 The author mentioned the following in the article:

The creation of artificial light-harvesting complexes involves the ordered arrangement of chromophores in space. To guarantee efficient energy-transfer processes, organic dyes must be brought into close proximity, often leading to aggregation and the formation of excimer states. In recent years, the attachment of ligand-based chromophores to nanoparticles has also generated interest in relation to improved solar harvesting and spin-dependent electronic interactions such as singlet fission and upconversion. We explore the covalent attachment of two novel perylene-diimide (PDI) carboxylic acid ligands to silicon dioxide nanoparticles. This allows us to study electronic interactions between the ligands when attached to nanoparticles because these cannot couple to the wide band gap silicon dioxide. One of the synthesized PDI ligands has sterically hindering phenols in the bay position and undergoes minimal optical changes upon attachment, but the other forms an excimer state with a red-shifted and long-lived florescence. As such, mol. structure changes offer a method to tune weak and strong interactions between ligand layers on nanocrystal surfaces. In the experiment, the researchers used Ethyl propiolate(cas: 623-47-2Electric Literature of C5H6O2)

Ethyl propiolate(cas: 623-47-2) is a clear colorless to pale yellow liquid that is soluble in ethanol, ether and chloroform. It an important organic chemical raw material and pharmaceutical intermediate. Ethyl propargylate is obtained by oxidation of propargyl alcohol to propargylic acid followed by esterification.Electric Literature of C5H6O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

In 2022,Parhizi, Mohammad; Caceres-Martinez, Louis Edwards; Modereger, Brent A.; Kenttamaa, Hilkka I.; Kilaz, Gozdem; Ostanek, Jason K. published an article in Energies (Basel, Switzerland). The title of the article was 《Determining the Composition of Carbonate Solvent Systems Used in Lithium-Ion Batteries without Salt Removal》.SDS of cas: 872-36-6 The author mentioned the following in the article:

In this work, two methods were investigated for determining the composition of carbonate solvent systems used in lithium-ion (Li-ion) battery electrolytes. One method was based on comprehensive two-dimensional gas chromatog. with electron ionization time-of-flight mass spectrometry (GCxGC/EI TOF MS), which often enables unknown compound identification by their electron ionization (EI) mass spectra. The other method was based on comprehensive two-dimensional gas chromatog. with flame ionization detection (GCxGC/FID). Both methods were used to determine the concentrations of six different commonly used carbonates in Li-ion battery electrolytes i.e., ethylene carbonate (EC), propylene carbonate (PC), di-Me carbonate (DMC), di-Et carbonate (DEC), Et Me carbonate (EMC), and vinylene carbonate (VC) in model compound mixtures (MCMs), single-blind samples (SBS), and a com. obtained electrolyte solution (COES). Both methods were found to be precise (uncertainty < 5%), accurate (error < 5%), and sensitive (limit of detection <0.12 ppm for FID and <2.7 ppm for MS). Furthermore, unlike the previously reported methods, these methods do not require removing lithium hexafluorophosphate salt (LiPF6) from the sample prior to anal. Removal of the lithium salt was avoided by diluting the electrolyte solutions prior to anal. (1000-fold dilution) and using minimal sample volumes (0.1μL) for anal. In the experiment, the researchers used many compounds, for example, Vinylene carbonate(cas: 872-36-6SDS of cas: 872-36-6)

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.SDS of cas: 872-36-6

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Chen, Xiao Yun; Yuan, Shuxia; Chen, Yan; Sun, Chenyang; Tang, Yaonan; Chen, Guang; Zhu, Baocheng; Chen, Kaiwei; Zheng, Shaojun; Cheng, Xiaofang published their research in Organic & Biomolecular Chemistry in 2021. The article was titled 《Solvent-controlled two-step one-pot syntheses of α-X (X = Br or Cl) enamino ketones/esters and 3-(2,5-dioxopyrrolidin-1-yl)acrylate by using terminal carbonyl alkynes》.Computed Properties of C5H6O2 The article contains the following contents:

A new two-step one-pot aminobromination/chlorination of carbonyl alkynes has been achieved via a Michael addition of aliphatic secondary amines and subsequent β-bromination/chlorination of the obtained enamines to afford various α-X (X = Br or Cl) enamino ketones/esters in moderate to good yields. A solvent-controllable protocol has been developed to produce versatile 3-(2,5-dioxopyrrolidin-1-yl)acrylates in moderate yields by using toluene as the solvent and chain alkyl propiolates as alkynyl substrates. In the experimental materials used by the author, we found Ethyl propiolate(cas: 623-47-2Computed Properties of C5H6O2)

Ethyl propiolate(cas: 623-47-2) is a clear colorless to pale yellow liquid that is soluble in ethanol, ether and chloroform. It an important organic chemical raw material and pharmaceutical intermediate. Ethyl propargylate is obtained by oxidation of propargyl alcohol to propargylic acid followed by esterification.Computed Properties of C5H6O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

《Pyrido[1′,2′:1,5]pyrazolo[4,3-b]quinolines as New Fluorescent Heterocyclic Systems for Dye-Sensitized Solar Cells》 was published in Russian Journal of General Chemistry in 2020. These research results belong to Agheli, Z.; Pordel, M.; Davoodnia, A.; Beyramabadi, S. A.. Safety of Ethyl propiolate The article mentions the following:

Abstract: New fluorescent heterocyclic compounds pyrido[1′,2′:1,5]pyrazolo[4,3-b]quinolines have been synthesized by the reaction of 3-nitropyrazolo[1,5-a]pyridine with different arylacetonitriles in high yield. Structural assignments of the new compounds are based on their spectral data. The study of optical properties of the compounds has revealed their high fluorescence quantum yields. Electrochem. properties of the compounds have been studied by cyclic voltammetry. The IPCE spectra and the I-V curves of the florescence compounds have been obtained, and their photovoltaic performance of 5.12-6.59% has been achieved.Ethyl propiolate(cas: 623-47-2Safety of Ethyl propiolate) was used in this study.

Ethyl propiolate(cas: 623-47-2) is a clear colorless to pale yellow liquid that is soluble in ethanol, ether and chloroform. It an important organic chemical raw material and pharmaceutical intermediate. Ethyl propargylate is obtained by oxidation of propargyl alcohol to propargylic acid followed by esterification.Safety of Ethyl propiolate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

The author of 《Hemoglobin-Catalyzed Synthesis of Indolizines Under Mild Conditions》 were Li, Fengxi; Tang, Xuyong; Xu, Yaning; Wang, Chunyu; Zhang, Liu; Zhang, Jiaxin; Liu, Jiaxu; Li, Zhengqiang; Wang, Lei. And the article was published in European Journal of Organic Chemistry in 2019. Computed Properties of C5H6O2 The author mentioned the following in the article:

Hb-catalyzed synthesis of indolizines via a multicomponent reaction is reported for the first time. The corresponding indolizines were obtained in moderate to high yields by using this method. This mild, efficient and practical method is distinguished using a com. inexpensive biocatalyst and readily available starting materials, wide substrate scope, and operational simplicity. Furthermore, this method expands the application of Hb in organic synthesis. In the experiment, the researchers used many compounds, for example, Ethyl propiolate(cas: 623-47-2Computed Properties of C5H6O2)

Ethyl propiolate(cas: 623-47-2) is a clear colorless to pale yellow liquid that is soluble in ethanol, ether and chloroform. It an important organic chemical raw material and pharmaceutical intermediate. Ethyl propargylate is obtained by oxidation of propargyl alcohol to propargylic acid followed by esterification.Computed Properties of C5H6O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

In 2019,ACS Sustainable Chemistry & Engineering included an article by Wu, Chao; Xiao, Hai-Jing; Wang, Shu-Wen; Tang, Man-Sheng; Tang, Zi-Long; Xia, Wen; Li, Wen-Feng; Cao, Zhong; He, Wei-Min. Formula: C5H6O2. The article was titled 《Natural Deep Eutectic Solvent-Catalyzed Selenocyanation of Activated Alkynes via an Intermolecular H-Bonding Activation Process》. The information in the text is summarized as follows:

By employing cheap and biodegradable natural deep eutectic solvent as the catalyst and reaction media, the selective selenocyanation of activated alkynes via an intermol. H-bonding activation pathway has been achieved, which allows for the efficient construction of various Z-vinyl selenolates. In the experiment, the researchers used many compounds, for example, Ethyl propiolate(cas: 623-47-2Formula: C5H6O2)

Ethyl propiolate(cas: 623-47-2) is a clear colorless to pale yellow liquid that is soluble in ethanol, ether and chloroform. It an important organic chemical raw material and pharmaceutical intermediate. Ethyl propargylate is obtained by oxidation of propargyl alcohol to propargylic acid followed by esterification.Formula: C5H6O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Electric Literature of C3H2O3In 2020 ,《Spectral deconvolution in electrophoretic NMR to investigate the migration of neutral molecules in electrolytes》 was published in Magnetic Resonance in Chemistry. The article was written by Schmidt, Florian; Pugliese, Andrea; Santini, Catherine C.; Castiglione, Franca; Schoenhoff, Monika. The article contains the following contents:

Electrophoretic NMR (eNMR) is a powerful tool in studies of nonaqueous electrolytes, such as ionic liquids It delivers electrophoretic mobilities of the ionic constituents and thus sheds light on ion correlations. In applications of liquid electrolytes, uncharged additives are often employed, detectable via 1H NMR. Characterizing their mobility and coordination to charged entities is desirable; however, it is often hampered by small intensities and 1H signals overlapping with major constituents of the electrolyte. In this work, we evaluate methods of phase anal. of overlapping resonances to yield electrophoretic mobilities even for minor constituents. We use phase-sensitive spectral deconvolution via a set of Lorentz distributions for the investigation of the migration behavior of additives in two different ionic liquid-based lithium salt electrolytes. For vinylene carbonate as an additive, no field-induced drift is observed; thus, its coordination to the Li+ ion does not induce a correlated drift with Li+. On the other hand, in a solvate ionic liquid with tetraglyme (G4) as an additive, a correlated migration of tetraglyme with lithium as a complex solvate cation is directly proven by eNMR. The phase evaluation procedure of superimposed resonances thus broadens the applicability of eNMR to application-relevant complex electrolyte mixtures containing neutral additives with superimposed resonances. The experimental process involved the reaction of Vinylene carbonate(cas: 872-36-6Electric Literature of C3H2O3)

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Electric Literature of C3H2O3

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Computed Properties of C3H2O3In 2020 ,《Operando Electrochemical Atomic Force Microscopy of Solid-Electrolyte Interphase Formation on Graphite Anodes: The Evolution of SEI Morphology and Mechanical Properties》 was published in ACS Applied Materials & Interfaces. The article was written by Zhang, Zhenyu; Smith, Keenan; Jervis, Rhodri; Shearing, Paul R.; Miller, Thomas S.; Brett, Daniel J. L.. The article contains the following contents:

Understanding and ultimately controlling the properties of the solid-electrolyte interphase (SEI) layer at the graphite anode/liquid electrolyte boundary are of great significance for maximizing the performance and lifetime of lithium-ion batteries (LIBs). However, comprehensive in situ monitoring of SEI formation and evolution, alongside measurement of the corresponding mech. properties, is challenging due to the limitations of the characterization techniques commonly used. This work provides a new insight into SEI formation during the first lithiation and delithiation of graphite battery anodes using operando electrochem. at. force microscopy (EC-AFM). Highly oriented pyrolytic graphite (HOPG) is investigated first as a model system, exhibiting unique morphol. and nanomech. behavior dependent on the various electrolytes and com. relevant additives used. Then, to validate these findings with respect to real-world battery electrodes, operando EC-AFM of individual graphite particles like those in com. systems are studied. Vinylene carbonate (VC) and fluoroethylene carbonate (FEC) are shown to be effective additives to enhance SEI layer stability in 1 M LiPF6/ethylene carbonate/ethyl Me carbonate (EC/EMC) electrolytes, attributed to their role in improving its structure, d., and mech. strength. This work therefore presents an unambiguous picture of SEI formation in a real battery environment, contributes a comprehensive insight into SEI formation of electrode materials, and provides a visible understanding of the influence of electrolyte additives on SEI formation. The results came from multiple reactions, including the reaction of Vinylene carbonate(cas: 872-36-6Computed Properties of C3H2O3)

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Computed Properties of C3H2O3

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Product Details of 872-36-6In 2022 ,《Solvent Degradation and Polymerization in the Li-Metal Battery: Organic-Phase Formation in Solid-Electrolyte Interphases》 appeared in ACS Applied Materials & Interfaces. The author of the article were Kuai, Dacheng; Balbuena, Perla B.. The article conveys some information:

The products of solvent polymerization and degradation are crucial components of the Li-metal battery solid-electrolyte interphase. However, in-depth mechanistic studies of these reactions are still scarce. Here, we model the polymerization of common lithium battery electrolyte solvents-ethylene carbonate (EC) and vinylene carbonate (VC)-near the anode surface. Being consistent with the mol. calculation, ab initio mol. dynamic (AIMD) simulations reveal fast solvent decompositions upon contact with the Li anode. Addnl., we assessed the thermochem. impacts of decarboxylation reactions as well as the lithium bonding with reaction intermediates. In both EC and VC polymerization pathways, lithium bonding demonstrated profound catalytic effects while different degrees of decarboxylation were observed The VC polymerization pathways with and without ring-opening events were evaluated systematically, and the latter one which leads to poly(VC) formation was proven to dominate the oligomerization process. Both the decomposition and polymerization reactivities of VC are found to be higher than EC, while the cross-coupling between EC and VC has an even lower-energy barrier. These findings are in good agreement with exptl. evidence and explanatory toward the enhanced performance of VC-added lithium-metal batteries. In addition to this study using Vinylene carbonate, there are many other studies that have used Vinylene carbonate(cas: 872-36-6Product Details of 872-36-6) was used in this study.

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Product Details of 872-36-6

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

In 2022,Kum, Lenin W.; Gogia, Ashish; Vallo, Nick; Singh, Deependra Kumar; Kumar, Jitendra published an article in ACS Applied Materials & Interfaces. The title of the article was 《Enhancing Electrochemical Performances of Rechargeable Lithium-Ion Batteries via Cathode Interfacial Engineering》.Formula: C3H2O3 The author mentioned the following in the article:

Li-ion batteries (LIBs) have transformed modern electronics and rapidly advancing elec. vehicles (EVs) due to their high energy and power densities, cycle-life, and acceptable safety. However, the comprehensive commercialization of EVs necessitates the invention of LIBs with much enhanced and stable electrochem. performances, including higher energy/power d., cycle-life, and operational safety, but at a lower cost. Herein, the authors report a simple method for improving the high-voltage (up to 4.5 V) charge capability of LIBs by applying a Li+-ion-conducting artificial cathode-electrolyte interface (Li+-ACEI) on the state-of-the-art cathode, LiCoO2 (LCO). A superionic ceramic single Li+ ion conductor, Li Al Ge phosphate (Li1.5Al0.5Ge1.5(PO4)3, LAGP), was used as a novel Li+-ACEI. The application of Li+-ACEI on LCO involves a scalable and straightforward wet chem. process (sol-gel method). Cycling performance, including high voltage charge, of bare and LAGP-coated cathodes was determined against the most energy-dense anode (Li, Li metal) and state-of-the-art carbonate-based organic liquid electrolyte (OLE). The application of an LAGP-based Li+-ACEI on LCO displays many improvements: (i) reduced charge-transfer and interfacial resistance; (ii) higher discharge capacity (167.5 vs. 155 mA-h g-1) at 0.2 C; (iii) higher Coulombic efficiency (98.9 vs. 97.8%) over 100 cycles; and (iv) higher rate capability (143 vs. 80.1 mA-h g-1) at 4C. Structural and morphol. characterizations have substantiated the improved electrochem. behavior of bare and Li+-ACEI LCO cathodes against the Li anode. The results came from multiple reactions, including the reaction of Vinylene carbonate(cas: 872-36-6Formula: C3H2O3)

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Formula: C3H2O3

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics