Category: ethers-buliding-blocks

Shi, Wei published the artcileComputational Screening of Physical Solvents for CO2 Pre-combustion Capture, Recommanded Product: 2,5,8,11,14-Pentaoxapentadecane, the main research area is computational screening solvent carbon dioxide absorption precombustion.

A computational scheme was used to screen phys. solvents for CO2 pre-combustion capture by integrating the com. NIST database, an inhouse computational database, chem-informatics, and mol. modeling. A com. available screened hydrophobic solvent, di-Et sebacate, was identified from the screening with favorable phys. properties and promising absorption performance. The promising performance to use di-Et sebacate in CO2 pre-combustion capture has also been confirmed from experiments Water loading in di-Et sebacate is very low, and therefore, water is kept with H2 in the gas stream. The favorable CO2 interaction with di-Et sebacate and the intermediate solvent free volume fraction leads to both high CO2 solubility and high CO2/H2 solubility selectivity in di-Et sebacate. An inhouse NETL computational database was built to characterize CO2, H2, N2, and H2O interactions with 202 different chem. functional groups. It was found that 13% of the functional groups belong to the strong interaction category with the CO2 interaction energy between -15 and -21 kJ/mol; 62% of the functional groups interact intermediately with CO2 (-8 to -15 kJ/mol). The remaining 25% of functional groups interact weakly with CO2 (below -8 kJ/mol). In addition, calculations show that CO2 interactions with the functional groups are stronger than N2 and H2 interactions but are weaker than H2O interactions. The CO2 and H2O interactions with the same functional groups exhibit a very strong linear pos. correlation coefficient of 0.92. The relationship between CO2 and H2 gas solubilities and solvent fractional free volume (FFV) has been systematically studied for seven solvents at 298.2 K. A skewed bell-shaped relation was obtained between CO2 solubility and solvent FFV. When an organic compound has a d. approx. 10% lower than its d. at 298.2 K and 1 bar, it exhibits the highest CO2 loading at that specific solvent d. and FFV. Note that the solvent densities were varied using simulations, which are difficult to be obtained from the experiment In contrast, H2 solubility results exhibit an almost perfect pos. linear correlation with the solvent FFV. The theor. maximum and min. phys. CO2 solubilities in any organic compound at 298.2 K were estimated to be 11 and 0.4 mol/MPa L, resp. An examination of 182 exptl. CO2 phys. solubility data and 29 simulated CO2 phys. solubilities shows that all the CO2 phys. solubility data are within the maximum and min. with only a few exceptions. Finally, simulations suggest that in order to develop phys. solvents with both high CO2 solubility and high CO2/H2 solubility selectivity, the solvents should contain functional groups which are available to interact strongly with CO2 while minimizing FFV.

Journal of Physical Chemistry B published new progress about Absorbents. 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

Zhang, Haode published the artcileOrganic Ammonium Ion Battery: A New Strategy for a Nonmetallic Ion Energy Storage System, Recommanded Product: 2,5,8,11,14-Pentaoxapentadecane, the main research area is ammonium battery charge carrier nonmetallic ion energy storage system; Ammonium-Ion Batteries; Electrochemistry; Organic Electrolytes; Prussian White Analogues.

Nonmetallic ammonium (NH4+) ion batteries are promising candidates for large-scale energy storage systems, which have the merit of low molar mass, sustainability, non-toxicity and non-dendrite. Herein, for the first time, we introduce the novel organic ammonium ion batteries (OAIBs). Significantly, a manganese-based Prussian white analog (noted as MnHCF) as cathode exhibits a reversible capacity of 104 mAh g-1 with 98% retention over 100 cycles. We further demonstrate the electrochem. performance of the NH4+ ion full cell, which delivers a reversible capacity of 45 mAh g-1 with a broad electrochem. window. Combining ex situ XPS, ex situ XRD results and electrochem. properties, the NH4+ ion storage mechanism of MnHCF in a non-aqueous electrolyte is clearly revealed. This work verifies the feasibility of employing NH4+ ions as charge carriers in organic energy storage systems and provides new insights for designing organic nonmetallic ion batteries with broad electrochem. windows and high energy d.

Angewandte Chemie, International Edition 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, Recommanded Product: 2,5,8,11,14-Pentaoxapentadecane.

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

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

Li, Yongtao published the artcileBuilding a Chemical Toolbox for Human Pregnane X Receptor Research: Discovery of Agonists, Inverse Agonists, and Antagonists Among Analogs Based on the Unique Chemical Scaffold of SPA70, Formula: C8H11BO3, the main research area is pregnane X receptor agonist antagonist inverse agonist SPA70 analog.

Pregnane X receptor (PXR) plays roles in detoxification and other physiol. processes. PXR activation may enhance drug metabolism (leading to adverse drug reactions) or inhibit inflammation. Therefore, PXR agonists, antagonists, and inverse agonists may serve as research tools and drug candidates. However, a specific PXR modulator with an associated structure-activity relationship is lacking. Based on the scaffold of specific human PXR (hPXR) antagonist SPA70 (10), we developed 81 SPA70 analogs and evaluated their receptor-binding and cellular activities. Interestingly, analogs with subtle structural differences displayed divergent cellular activities, including agonistic, dual inverse agonistic and antagonistic, antagonistic, and partial agonistic/partial antagonistic activities (as in compounds 111, 10, 97, and 42, resp.). We generated a pharmacophore model that represents 81 SPA70 analogs, and docking models that correlate strong interactions between the compounds and residues in the AF-2 helix with agonistic activity. These compounds are novel chem. tools for studying hPXR.

Journal of Medicinal Chemistry published new progress about Cytotoxicity. 127972-00-3 belongs to class ethers-buliding-blocks, name is 2-Methoxy-5-methylphenylboronic acid, and the molecular formula is C8H11BO3, Formula: C8H11BO3.

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