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Carbon Metal - Wiley Online Library

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Last Updated: 04 October 2022

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Preparation of propylene carbonate by alcoholysis of urea from the perspective of homogeneous reaction: influence of dissolution and precipitation of metal oxide catalysts

Propylene carbonate was investigated by the dissolution process of metal oxide catalysts in the alcoholysis of urea by 1,2 percentu2010propylene glycol to the production of propylene carbonate. Different oxides and salts as catalysts were positively correlated with PC yield, according to the dissolved amount of catalyst. The catalysts' decomposition of urea was determined by the FTIR study of the catalysts reacting with urea. Both the dissolving amount of catalysts and the complicated reaction curve of complex affected PC yields were shown by the results of a catalytic test.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/cjce.24680


Emerging Carbon Nanotube‐based Nanomaterials for Stable and Dendrite‐free Alkali Metal Anodes: Challenges, Strategies, and Perspectives

Due to their high analytical stability and low electrochemical permeability, Alkali metals, acetate metal battery anodes are promising candidates for high-performance rechargeable alkali metal battery anodes due to their high theoretical sensitivity and low electrochemical permeability. However, the application of alkali metal anodes is hampered by alkali metal anodes' high chemical sensitivity, uncontrolled dendrite formation, fragile solid electrolyte interphase, and infinite volume expansion during cycling processes, among other things. A nifty alternative to these problems is to introduce carbon nanotube u2010-based nanomaterials in AMAs. The challenges and opportunities for future research and applications of CNT-u2010-based AMAs in high-performance alkali metal batteries are discussed.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/eem2.12525


Stable Sodium Metal Batteries in Carbonate Electrolytes Achieved by Bifunctional, Sustainable Separators with Tailored Alignment

Sodium is the most cost-effective, high-u2010energyu2010density energy storage systems, by virtue of its high theoretical capacity and abundance as a resource. However, uncontrolled Na dendrite growth and limited cell cycle life impede the widespread use of Na electrodes in commonly used and low-cost carbonate electrolytes in commonly used and low-u2010cost carbonate electrolytes. This unique separator integrates with the benefits of serving as highly acclaimed ion/homogenize the Na molecule level and physically suppressing the Na dendrite puncture at a mechanical structure level by tailoring the alignment degree.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/adma.202206367


Fabrication of the polyethersulfone/functionalized mesoporous carbon nanocomposite nanofiltration membrane for dyes and heavy metal ions removal: Experimental and quantum mechanical simulation method

This membrane was synthesized by adding the active components of sulfonyl and amide to the surface of mesoporous carbon CMKu20105's mesoporous carbon CMKu20105 by covalent functionalization. The coupling of the nanocomposite membrane and the investigated solutes, including dyes and heavy metal ions, were investigated by the density functional based tight binding technique and structural optimization. For all membranes, the lowest and the highest salt rejection were obtained for NaCl and Na2SO4, respectively, exhibiting the characteristics of NF membranes. In addition, M0. 3 with 0. 3 wt% nanofiller showed the highest rejection for heavy metal ions and dyes, as well as high separation results for multipolluent filtering. The PES/Fu2010CMKu20105 nanocomposite NF membrane, according to the results, is a promising candidate for water and wastewater treatment.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/pat.5869

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions