Tag: M.W=200-250

Steinrueck, Hans-Georg published the artcileGeneral relationship between salt concentration and x-ray absorption for binary electrolytes, Application In Synthesis of 143-24-8, the main research area is salt concentration cell polarization absorption relaxation binary electrolyte.

We derive a general relationship between salt concentration and x-ray absorption for binary electrolytes. Volume and mass conservation are considered. The relationship can be used to measure salt concentration profiles via x-ray absorption imaging during cell polarization and relaxation. In conjunction with concentrated solution theory, the derived relationship is as a powerful tool to accurately determine transport coefficients such as cation transference number in ion battery electrolytes and to test thermodn. models. The relationship is electrolyte-agnostic, as long as the product between mass attenuation coefficient, inverse partial molar volume, and molar mass of the solvent and that of the salt are not equal. (c) 2021 American Institute of Physics.

AIP Advances published new progress about Absorption. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Application In Synthesis of 143-24-8.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Xu, Qiang published the artcileAbsorption of sulfur dioxide by tetraglyme-sodium salt ionic liquid, Product Details of C10H22O5, the main research area is sulfur dioxide absorption tetraglyme sodium salt ionic liquid; SO2 removal; ionic liquid; recyclable absorption; tetraglyme.

A series of tetraglyme-sodium salt ionic liquids have been prepared and found to be promising solvents to absorb SO2. The experiments here show that [Na-tetraglyme][SCN] ionic liquid has excellent thermal stability and a 30% increase in SO2 absorption capacity compared to other sodium salt ionic liquids and the previously studied lithium salt ionic liquids in terms of molar absorption capacity. The interaction between SO2 and the ionic liquid was concluded to be phys. absorption by IR and NMR.

Molecules published new progress about Absorption. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Product Details of C10H22O5.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Semenycheva, Lyudmila published the artcileFeatures of Polymerization of Methyl Methacrylate using a Photocatalyst-the Complex Oxide RbTe1.5W0.5O6, Quality Control of 143-24-8, the main research area is rubidium tungsten tellurate photocatalyst methyl methacrylate polymerization.

Radical polymerization of Me methacrylate in an aqueous emulsion was carried out using the complex oxide RbTe1.5W0.5O6 as a photoinitiator under visible light irradiation with λ = 400-700 nm. Study of the polymerization process and reaction products using methods of phys. and chem. anal. (GPC, IR, NMR, etc.) has shown that there are several directions of monomer transformations at the same time. Polymethyl methacrylate with Mn ∼ 140-145 kDa, produced in the organic phase, is a result of polymerization initiation by a hydroxyl radical formed due to complex transformations of electron-hole pairs during photocatalyst irradiation Moreover, the interaction of the hydroxyl radical with OH-groups on the complex oxide RbTe1.5W0.5O6 surface and the subsequent formation of oxygen-centered radicals lead to grafting polymer macromols. on the photocatalyst surface. In addition, Me methacrylate is able to oxidize to a cyclic dimer with terminal double bonds and form a polymer with cyclic dimer links due to coordination by double bonds on the RbTe1.5W0.5O6 surface. The high activity of the hydroxyl radical allows to obtain the graft copolymer PMMA-pectin by grafting the polymer product on the surface of the natural polymer-pectin. Comparison of the sponge morphol. of the graft copolymer PMMA-pectin and the initial pectin samples using the SEM has shown a noticeable difference in their structural and topol. organization. It is especially interesting in terms of studying the properties of the graft copolymer as a material for the scaffolds.

Journal of Inorganic and Organometallic Polymers and Materials published new progress about Absorption. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Quality Control of 143-24-8.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Xie, Heping published the artcileLow-energy-consumption electrochemical CO2 capture driven by biomimetic phenazine derivatives redox medium, Recommanded Product: 2,5,8,11-Tetraoxatridecan-13-ol, the main research area is carbon dioxide proton coupled electron transfer electrolysis redox reaction.

To reduce the energy consumption of CO2-capture methods, proton carriers can be used to drive the CO2 capture in a pH-swing way via the proton coupled electron transfer (PCET) reactions, which are electrochem. regenerable by electrolysis, surpassing the energy-intensive thermal regeneration of traditional monoethanolamine (MEA) absorption method in terms of energy efficiency. However, the low solubility of PCET organics limits its CO2 capture capacity and thus the application. We develop a low energy consuming, high-capacity CO2-capture cell using a phenazine-based organic as the proton carrier as the PCET redox medium, which has high proton capacity and fast PCET kinetics. The quasi-reversible redox-PCET of the phenazine derivative effectively swings the pH of NaHCO3/Na2CO3 aqueous electrolyte at the cathode and the anode, which work as the CO2 absorption/desorption half-cell resp. This electrochem. CO2-capture cell with an optimal derivative (7,8-dihydroxyphenazine-2-sulfonic acid, noted as DHPS) demonstrates a 95.8% average current efficiency at 10 mA cm-2 and a superior low-electrolysis energy consumption of 0.49 GJ per ton of CO2.

Applied Energy published new progress about Absorption. 23783-42-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11-Tetraoxatridecan-13-ol, and the molecular formula is C9H20O5, Recommanded Product: 2,5,8,11-Tetraoxatridecan-13-ol.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Li, Yun published the artcileSolubility Measurement and Thermodynamic Properties Calculation for Several CO2 + Ether Absorbent Systems, HPLC of Formula: 143-24-8, the main research area is solubility thermodn property carbon dioxide ether absorbent system.

Six phys. absorbents with the ether groups were selected for CO2 absorption: tetraethylene glycol di-Me ether (TEGDME), diethylene glycol monohexyl ether, 2-butoxyethyl ether, triethylene glycol monobutyl ether, ethylene glycol di-Bu ether, and dipropylene glycol di-Me ether (DPGDME). CO2 solubilities in these absorbents were measured at 273.15 and 283.15 K and 0-1.2 MPa. Henry’s constants of these CO2 + ether absorbent systems were calculated and analyzed at 273.15 K. The ether group is found more powerful than the methylene group, and the Et group is more effective than the hydroxyl group to improve the absorption ability of the absorbents. A lower temperature tends to facilitate the absorption process by increasing the absorption ability. Henry’s constants and mass solubilities of the ether absorbents were compared with those of the ionic liquids, common solvents, and other absorbents. TEGDME and DPGDME are potential absorbents according to the evaluation in both mole and mass fraction. The thermodn. properties, such as entropy, enthalpy, and Gibbs free energy of solution, for CO2 + the ether absorbent systems were calculated and discussed for potential development of corresponding CO2 capture processes.

Journal of Chemical & Engineering Data published new progress about Absorption. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, HPLC of Formula: 143-24-8.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Xie, Zhichao published the artcileAll-Solid-State Vertical Three-Terminal N-Type Organic Synaptic Devices for Neuromorphic Computing, Recommanded Product: 2,5,8,11-Tetraoxatridecan-13-ol, the main research area is polythiophene artificial synaptic device neuromorphic computing handwritten digital dataset.

Artificial synaptic devices are the basic composition units for neuromorphic computing processors that realize massive parallel computing. However, the n-type organic transistors have failed to achieve good performance as an artificial synaptic device for neuromorphic computing until now. Here, a vertical three-terminal n-type organic artificial synapse (TNOAS) using a lithium ion-based organic dielec. and the n-type donor-acceptor (D-A) conjugated polymer-naphthalene-1,4,5,8-tetracarboxylic-diimide-thiophene-vinyl-thiophene (NDI-gTVT) as the channel is proposed. The TNOAS achieves nonvolatile conductance modulation with high c.d. operation (≈10 KA cm-2) at low voltage and mimics the basic functions of biol. synapses, such as long-term synaptic plasticity and paired-pulse facilitation. The min. energy consumption of a response event triggered by a single action potential is 6.16 pJ, which can be comparable with p-type counterparts. Moreover, simulation using handwritten digital datasets exhibit a high recognition accuracy of 94%.

Advanced Functional Materials published new progress about Digital data. 23783-42-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11-Tetraoxatridecan-13-ol, and the molecular formula is C9H20O5, Recommanded Product: 2,5,8,11-Tetraoxatridecan-13-ol.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Ma, Yijia published the artcileRecovery of Hydrogen and Sulfur by Electrolysis of Ionized H2S in an Amine-Containing Organic Electrolyte with Highly Temperature-Dependent Sulfur Solubility, HPLC of Formula: 143-24-8, the main research area is recovery hydrogen sulfur electrolysis ionization hydrogen sulfide.

Abundant hydrogen sulfide (H2S) from nature and industry has been considered a harmful substance. However, it is a potential resource if valuable H2 and elemental sulfur can be recovered from H2S. Herein, a new organic electrolyte system was constructed for H2S direct electrolysis using tetraethylene glycol di-Me ether as the solvent, ionic liquid [C3OHmim]BF4 as the supporting electrolyte, and monoethanolamine (MEA) as the absorbent for H2S. The as-prepared electrolyte was found useful as highly temperature-dependent on the sulfur solubility electrolyte with catalytic effects of sorbent MEA, conducive to solving passivation problems caused by sulfur adhesion in direct electrolysis of H2S and sulfur recovery in indirect electrolysis. Moreover, the as-obtained organic electrolyte showed certain stability with Faraday efficiency of H2 generated after three heating-electrolysis-cooling cycles, reaching 89%. In summary, the as-obtained electrolyte looks promising for efficient and continuous electrolysis of H2S.

Energy & Fuels published new progress about Electrolysis. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, HPLC of Formula: 143-24-8.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Zhang, Qi published the artcileChloride Ion as Redox Mediator in Reducing Charge Overpotential of Aprotic Lithium-Oxygen Batteries, Recommanded Product: 2,5,8,11,14-Pentaoxapentadecane, the main research area is chloride ion lithium oxygen battery redox mediator reducing charge.

The aprotic lithium-oxygen (Li-O2) battery with a high theor. energy d. has been considered as a promising candidate for next-generation energy storage devices. However, the formation of insulating Li2O2 products is a major obstacle for realizing the high energy efficiency and long cycle life. Here, we report a new Cl-/Cl3- redox mediator to reduce the charge overpotential by a facile introduction of chloride ion (Cl-) additives into the organic electrolyte. The redox mediator can effectively promote the formation of the LiOH discharge product, and facilitate efficient LiOH decomposition Therefore, the cell with the Cl- additives possesses a significantly low charge overpotential of 0.29 V, an extended cycle life (up to 71 cycles) at a rate of 500 mA g-1 with a fixed capacity of 500 mAh g-1, and an enhanced rate capability. This study offers an effective approach to modulate discharge products from Li2O2 to LiOH and provides new insights toward the role of redox mediators through the addition of Cl- in Li-O2 battery systems.

Batteries & Supercaps published new progress about Electrolytes. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Recommanded Product: 2,5,8,11,14-Pentaoxapentadecane.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Kitada, Atsushi published the artcileGlyme-lithium bis(trifluoromethylsulfonyl)amide superconcentrated electrolytes: salt addition to solvate ionic liquids lowers ionicity but liberates lithium ions, Recommanded Product: 2,5,8,11,14-Pentaoxapentadecane, the main research area is glyme lithium trifluoromethylsulfonyl amide superconcentrated electrolytes solvate ionic liquid.

Solvate ionic liquids (ILs) such as binary equimolar mixtures of glymes (ethyleneglycol-dimethylether or CH3(OCH2CH2)nOCH3) and lithium bis(trifluoromethylsulfonyl)amide (LiTf2N; Tf = SO2CF3) are known to show identical self-diffusion coefficients for glymes and Li+ ions. Here, we report that the addition of LiTf2N to the solvate ILs drastically changes their electrolyte properties. When the lithium salts are added to give the super-concentrated electrolytes with [O]/[Li+] = 3 (molar ratio of ether oxygen to Li+), ligand exchange or hopping conduction of Li+ takes place for triglyme (G3; n = 3) and tetraglyme (G4; n = 4). In addition, the Li+ transference number tLi+(EC), electrochem. measured under anion blocking conditions, increases about 3-6 times compared with the solvate ILs. Consequently, segmental motion of glymes apparently affects the transport properties even for the shorter G3 in the super-concentrated region. The relationship between the coordination structure and the transport properties are also discussed as a function of ionicity, the extent of the contribution of self-diffusion to the actual ion conduction. Plots vs ionicity demonstrate that a clear line can be drawn between the solvate ILs and the super-concentrated electrolytes.

Journal of the Electrochemical Society published new progress about Electrolytes. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Recommanded Product: 2,5,8,11,14-Pentaoxapentadecane.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Oyedeji, Ajibola Bamikole published the artcileMetabolite data of germinated Bambara groundnut flour and starch extracted with two different solvents, Product Details of C10H22O5, the main research area is germinated Bambara groundnut flour starch metabolite solvent extraction; Bambara groundnut; GC-HRTOF-MS; Germination; Metabolites; Solvent extraction.

The data presented in this study represents the profile of metabolites of germinated Bambara groundnut flour (GBF) and starch (GBS) extracted using two different extraction solvents. Bambara groundnuts obtained from a local agro market in Minna, Niger State, Nigeria were germinated at 28 ± 1°C for 24, 48 and 72 h, dried and then processed into flour and starch. Raw Bambara groundnuts (0 h) were also processed into flour and starch and served as controls. Samples at the different germination times were extracted using methanol/water (80:20vol./volume) and acetonitrile/methanol/water (40:40:20 volume/volume/v), concentrated, reconstituted and analyzed on a gas chromatog.-high resolution time of flight-mass spectrometer (GC-HRTOF-MS). Data obtained were classified into compound groups such as acids, alcs., cyclic compounds, esters, ketones, phytosterols, vitamins and many others, and their characteristics such as the retention time, observed mass, mol. formular and mean peak areas were reported. These data represent the collection of metabolites in GBF and GBS and may be useful for the identification and utilization of functional compounds in foods.

Data in Brief published new progress about Food science. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Product Details of C10H22O5.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem