Category: 143-24-8

Fan, MouPing published the artcileIn situ growth of NiS2 nanosheet array on Ni foil as cathode to improve the performance of lithium/sodium-sulfur batteries, SDS of cas: 143-24-8, the main research area is nickel disulfide nanosheet foil growth lithium sodium sulfur battery.

The NiS2 nanosheet array on Ni foil (NiS2/NF) was prepared using an in situ growth strategy and sulfidation method and was used as the cathode of lithium sulfur battery. The unique nanostructure of the NiS2nanosheet array can provide abundant active sites for the adsorption and chem. action of polysulfides. Compared with the sulfur powder coated pure NF (pure NF-S) for lithium sulfur battery, the sulfur powder coated NiS2/NF (NiS2/NF-S) electrode exhibits superior electrochem. performance. Specifically, the NiS2/NF-S delivered a high reversible capacity of 1007.5 mAh g-1 at a c.d. of 0.1 C (1 C= 1675 mA g-1) and kept 74.5% of the initial capacity at 1.0 C after 200 cycles, indicating the great promise of NiS2/NF-S as the cathode of lithium sulfur battery. In addition, the NiS2/NF-S electrode also showed satisfactory electrochem. performance when used as the cathode for sodium sulfur battery.

Science China: Technological Sciences published new progress about Adsorption. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, SDS of cas: 143-24-8.

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

Wei, Zhaohuan published the artcileA novel Cr2O3/MnO2-x electrode for lithium-oxygen batteries with low charge voltage and high energy efficiency, Safety of 2,5,8,11,14-Pentaoxapentadecane, the main research area is chromium trioxide manganese dioxide electrode lithium oxygen battery voltage; Cr2O3; Energy efficiency; MnO2-x; charge voltage; lithium-oxygen battery.

A high energy efficiency, low charging voltage cathode is of great significance for the development of non-aqueous lithium-oxygen batteries. Non-stoichiometric manganese dioxide (MnO2-x) and chromium trioxide (Cr2O3) are known to have good catalytic activities for the discharging and charging processes, resp. In this work, we prepared a cathode based on Cr2O3 decorated MnO2-x nanosheets via a simple anodic electrodeposition-electrostatic adsorption-calcination process. This combined fabrication process allowed the simultaneous introduction of abundant oxygen vacancies and trivalent manganese into the MnO2-x nanosheets, with a uniform load of a small amount of Cr2O3 on the surface of the MnO2-x nanosheets. Therefore, the Cr2O3 /MnO2-x electrode exhibited a high catalytic effect for both discharging and charging, while providing high energy efficiency and low charge voltage. Exptl. results show that the as-prepared Cr2O3 /MnO2-x cathode could provide a specific capacity of 6,779 mA· h· g-1 with a terminal charge voltage of 3.84 V, and energy efficiency of 78%, at a c.d. of 200 mA·g-1 . The Cr2O3 /MnO2-x electrode also showed good rate capability and cycle stability. All the results suggest that the as-prepared Cr2O3 /MnO2-x nanosheet electrode has great prospects in non-aqueous lithium-oxygen batteries.

Frontiers in Chemistry (Lausanne, Switzerland) published new progress about Adsorption. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Safety of 2,5,8,11,14-Pentaoxapentadecane.

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

Li, Dan published the artcile1,2-dimethyl-3-propylimidazolium iodide as a multiple-functional redox mediator for Li-O2 batteries: In situ generation of a “”self-defensed”” SEI layer on Li anode, Formula: C10H22O5, the main research area is dimethyl propylimidazolium iodide redox mediator lithium oxygen battery anode.

How to develop a homogeneous redox mediator (RM) towards both ORR and OER and how to prevent the shuttle effect are two main issues for Li-O2 batteries thus far. Here, we firstly report 1,2-dimethyl-3-propylimidazolium iodide (DMPII), which serves multiple functions as a RM for discharge capacity promotion, a RM for charge potential reduction, and a Li anode protector for shuttling suppression by in situ generating a “”self-defensed”” SEI layer. Benefiting from these advantages, a cell with DMPII displays a stable cyclability with a low terminal charge potential of ∼3.6 V till the cell death, a considerable rate performance, and a good reversibility associated with Li2O2 formation and degradation Based on the exptl. and d. functional theory (DFT) calculation results, a working mechanism for a cell operation is also proposed. These results represent a promising progress in the development of multiple-functional RM for Li-O2 batteries. Moreover, we expect that this work gives an insight into the in situ protection of Li metal anode for board applications (e.g., Li-S batteries, all-solid-state Li-ion batteries, etc.).

Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about Adsorption. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Formula: C10H22O5.

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

Wang, Hua published the artcileGreatly promoted oxygen reduction reaction activity of solid catalysts by regulating the stability of superoxide in metal-O2 batteries, Related Products of ethers-buliding-blocks, the main research area is superoxide solid catalyst stability oxygen battery reduction reaction activity.

Oxygen reduction reactions (ORRs) with one- or two-electron-transfer pathways are the essential process for aprotic metal-oxygen batteries, in which the stability of superoxide intermediates/products (O2-, LiO2, NaO2, etc.) mainly dominates the ORR activity/stability and battery performance. However, little success in regulating the stability of the superoxides has been achieved due to their highly reactive characteristics. Herein, we identified and modulated the stability of superoxides by introducing anthraquinone derivatives as cocatalysts which functioned as superoxide trapper adsorbing the superoxides generated via surface-mediated ORR and then transferring them from the solid catalyst surface into electrolyte. Among the studied trappers, 1,4-difluoroanthraquinone (DFAQ) with electron-withdrawing groups showed the highest adsorption towards superoxides and could efficiently stabilize LiO2 in electrolyte, which greatly promoted the surface-mediated ORR rate and stability. This highlighted the magnitude of adsorption between the trapper and LiO2 on the ORR activity/stability. Using an aprotic Li-O2 battery as a model metal-O2 battery, the overall performance of the cell with DFAQ was substantially improved in terms of cell capacity, rate capability and cyclic stability. These results represent a significant advance in the understanding of ORR mechanisms and promoting the performance of metal-O2 batteries.

Science China Materials published new progress about Adsorption. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Related Products of ethers-buliding-blocks.

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

Maho, Anthony published the artcileAqueous processing and spray deposition of polymer-wrapped tin-doped indium oxide nanocrystals as electrochromic thin films, Synthetic Route of 143-24-8, the main research area is spray deposition polymer surface ITO nanocrystal electrochromic thin film.

Plasmonic metal oxide nanocrystals are interesting electrochromic materials because they display high modulation of IR light, fast switching kinetics, and durability. Nanocrystals facilitate solution-based and high-throughput deposition, but typically require handling hazardous nonaqueous solvents and further processing of the as-deposited film with energy-intensive or chem. treatments. We report on a method to produce aqueous dispersions of tin-doped indium oxide (ITO) by refunctionalizing the nanocrystal surface, previously stripped of its native hydrophobic ligands, with a hydrophilic poly(acrylic acid) polymer featuring a low d. of methoxy-terminated poly(ethylene oxide) grafts (PAA-mPEO4). To determine conditions favoring the adsorption of PAA-mPEO4 on ITO, we varied the pH and chem. species present in the exchange solution The extent of polymer wrapping on the nanocrystal surface can be tuned as a function of the pH to prevent aggregation in solution and deposit uniform, smooth, and optical quality spray coated thin films. We demonstrate the utility of polymer-wrapped ITO nanocrystal thin films as an electrochromic material and achieve fast, stable, and reversible near-IR modulation without the need to remove the polymer after deposition provided that a wrapping d. of ~20% by mass is not exceeded.

Chemistry of Materials published new progress about Adsorption. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Synthetic Route of 143-24-8.

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

Shi, Kaiyuan published the artcileElectrochemical Polishing: An Effective Strategy for Eliminating Li Dendrites, COA of Formula: C10H22O5, the main research area is lithium dendrite electrochem polishing deposition density functional theory.

Dendritic growth of lithium (Li) is well-known to originate from deposition on rough and inhomogeneous Li-metal surfaces, and has long been a central problem in charging lithium metal batteries. Herein, a universal strategy is proposed for dendrite suppression by both in situ and ex situ electrochem. polishing of Li metal from the corrosion science perspective. This polishing technique greatly smoothens the surface of the Li and dynamically regenerates a homogeneous solid electrolyte interphase film simultaneously during cell cycling, which suppresses the nucleation sites for dendritic Li and establishes an ideal matrix for even deposition of Li. As a result, the polished Li presents a stable voltage profile and high Li utilization in both the sym. cells and the full cells coupled with LiNi0.8Co0.1Mn0.1O2 (NCM811) or LiFePO4. The long cycle life of polished Li electrodes clearly demonstrates a uniform dendrite-free deposition of Li. This strategy shows a new direction to realize a uniform deposition of Li by providing a regenerative homogeneous Li-surface during repeated cycling.

Advanced Functional Materials published new progress about Adsorption. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, COA of Formula: C10H22O5.

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

Kichambare, Padmakar published the artcilePhthalocyanine as catalyst for rechargeable lithium-oxygen batteries, Computed Properties of 143-24-8, the main research area is phthalocyanine catalyst rechargeable lithium oxygen battery.

Tetrabutylammonium lithium phthalocyanine (TBA-LiPc) can function as a soluble catalyst in low-donor-number (DN) solvents such as tetraethylene glycol di-Me ether (TEGDME) (DN=16.6) for rechargeable lithium-oxygen cells. It is able to do so given that mol. oxygen forms a complex with the lithium phthalocyanine anion thereby keeping oxygen and the reaction intermediates in solution D. functional theory (DFT) calculations show the mechanism for complex formation and cyclic voltammetry results support the notion of reaction intermediates that are soluble in solution during oxygen reduction and oxygen evolution reactions. Deep discharge of a lithium-oxygen cell with TBA-LiPc had a capacity that was 3.6 times greater (5.28 mAh) than a similar cell with no TBA-LiPc (1.47 mAh). Long-term cycling of a lithium-oxygen cell with TBA-LiPc at a fixed capacity of 0.55 mAh did not fail after 100 cycles. A similar cell without TBA-LiPc failed after 37 cycles. Long-term cycling of a lithium-oxygen cell with TBA-LiPc and using natural air in low humidity as the source of oxygen cycled 151 times before cell failure.

Journal of Porphyrins and Phthalocyanines published new progress about Atmosphere. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Computed Properties of 143-24-8.

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

Furuya, Ryota published the artcilePotential dependence of the impedance of solid electrolyte interphase in some electrolytes, Application of 2,5,8,11,14-Pentaoxapentadecane, the main research area is solid electrolyte interphase electrode potential impedance.

The dependence of the impedances of lithium phosphorus oxynitride (LiPON) thin film and solid electrolyte interphase (SEI) formed by decomposition of some electrolytes on the electrode potential was investigated by electrochem. impedance spectroscopy. A LiPON thin film was prepared on a Ni electrode by radio frequency magnetron sputtering of Li3PO4 under nitrogen atm. The resistance of the LiPON thin film decreased with lowering the electrode potential in an ionic liquid, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) containing 1 M LiTFSA. The similar potential dependence of the impedance of the SEI formed in 1 M LiTFSA/BMPTFSA was observed, suggesting that the Li+ carrier d. in the LiPON thin film and SEI increased with lowering the electrode potential probably due to the doping of Li+ from the electrolyte into the thin Li+ conductors in order to compensate the neg. charge on the electrode. On the other hand, the potential dependence of the SEI formed in LiTFSA-tetraglyme (G4) solvate ionic liquid was insignificant because of the high concentration of Li+ in the SEI and electrolyte. The resistance of the SEI formed in 1 M LiClO4/EC (ethylene carbonate) + DMC (di-Me carbonate) (1 : 1 vol%) did not depend on the electrode potential, suggesting the thin and highly Li+ conductive SEI is formed in the organic electrolyte.

Electrochemistry (Tokyo, Japan) published new progress about Atmosphere. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Application of 2,5,8,11,14-Pentaoxapentadecane.

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

Liu, Xiao published the artcileBiphasic Electrolyte Inhibiting the Shuttle Effect of Redox Molecules in Lithium-Metal Batteries, Application of 2,5,8,11,14-Pentaoxapentadecane, the main research area is lithium metal battery shuttle effect biphasic electrolyte; biphasic electrolytes; lithium redox flow batteries; lithium-oxygen batteries; redox mediators; shuttle effects.

Redox mols. (RMs) as electron carriers have been widely used in electrochem. energy-storage devices (ESDs), such as lithium redox flow batteries and lithium-O2 batteries. Unfortunately, migration of RMs to the lithium (Li) anode leads to side reactions, resulting in reduced coulombic efficiency and early cell death. Our proof-of-concept study utilizes a biphasic organic electrolyte to resolve this issue, in which nonafluoro-1,1,2,2-tetrahydrohexyl-trimethoxysilane (NFTOS) and ether (or sulfone) with lithium bis(trifluoromethane)sulfonimide (LiTFSI) can be separated to form the immiscible anolyte and catholyte. RMs are extracted to the catholyte due to the enormous solubility coefficients in the biphasic electrolytes with high and low polarity, resulting in inhibition of the shuttle effect. When coupled with a lithium anode, the Li-Li sym., Li redox flow and Li-O2 batteries can achieve considerably prolonged cycle life with biphasic electrolytes. This concept provides a promising strategy to suppress the shuttle effect of RMs in ESDs.

Angewandte Chemie, International Edition published new progress about Cell cycle. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Application of 2,5,8,11,14-Pentaoxapentadecane.

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

Erdol, Zeynep published the artcileAssessment on the Stable and High-Capacity Na-Se Batteries with Carbonate Electrolytes, Product Details of C10H22O5, the main research area is sodium selenium battery carbonate electrolyte.

Factors affecting proper functioning of Na-Se system are investigated focusing on the polyselenide formation in ether- and carbonate-based electrolytes. To do so, Se cathode is prepared by ball milling with com. carbon and selenium powders. It is revealed that the soluble polyselenide species form in ether while no signature in carbonates proven by the in-situ cyclic voltammetry and ex-situ UV-visible spectroscopy measurements as well as monitoring self-discharge behaviors. Different Se discharge mechanism is also highlighted by staircase potentio electrochem. impedance spectroscopy (SPEIS) that is an impedance measurement applied to each potential step. Volume expansion is targeted using different types of binders in which carboxyl methylcellulose-styrene butadiene rubber (CMC-SBR) delivers the highest reversible capacity and the best rate performance resulting from its high adhesion strength. To further improve the performances, fluoroethylene carbonate (FEC) is used as a film forming additive that preserves Na metal integrity proven by the Na-Na sym. cells and voltage relaxation upon cycling. As a whole, binders and electrolyte compositions are found to be the two crucial factors to obtain stable and high-capacity Na-Se cells. This study underlines that much effort needs to be put on the strategies to overcome volume expansion than that of Se confinement into porous cathode.

ChemElectroChem published new progress about Composites. 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