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Carbon Metal - Wiley Online Library

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Last Updated: 04 January 2023

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Metal‐free Spent Disposable Papercup‐derived Porous Carbon as Air‐breathing Electrode for Rechargeable Lithium‐Air Battery

Carbon was obtained from the spent disposable papercups and tested as an airu2010breathing electrode for rechargeable Liu2010Air batteries by Mesoporous activated carbon. U20101: The activated carbon obtained at 800 u00b0C had the largest surface area of 772 m2 gu20101. The oxygen reduction reaction/oxygen evolution reaction kinetics conducted in a rotating disc electrode under Ar and O2 atmosphere with 0. 1 million KOH confirmed that the carbon electrode obtained at 800 u00b0C had inherent catalyst activity. The high surface area, reliable O2 adsorption, and the more active locations on the C800 electrode's surface contribute to high ORR and OER catalytic activity. At a maximum density of 50 Ag20101. A CR-2032 coin cell was built to demonstrate Liu2010Air battery operation using the C800 electrocatalyst as an airu2010breathing electrode with steady OCV and a high discharge capacity of 1035 mAh gu20101 at a current density of 50 Ag 20101.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/est2.440


A structured ultramicroporous metal‐organic framework for carbon dioxide capture

Carbon dioxide capture is one of the most significant aspects of reducing global warming. Metalu2010organic frameworks have many advantages in terms of CO2 capture and capture. Polyvinyl butyral is used as a binder in the manufacture of Ni2 MOF pellets. Ni2 preferentially adsorbs CO2 molecules over N2 molecules and CO molecules, according to the theoretical results. Under conditions of dynamic flow, Ni2 pellets have been able to effectively separate CO2/N2 or CO2/CO mixtures under conditions of dynamic flow, according to the results of experiments on dynamic breakthrough. In addition, the pre-formed MOF particles can be synthesized in a single step at kilogram scale.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/cjoc.202200658


Review——Lithium Carbon Composite Material for Practical Lithium Metal Batteries

However, uncontrolled Li dendrite growth and interfacial confusion during repeated Li plating/stripping have limited Li metal batteries' practical applicability. In recent years, our research team has produced several Liu2010carbon microsphere composites to minimize Li dendrite formation and cycle life. U2010C composites, including developments in the creation and application of Liu2010C composites, Liu2010ion, Liu2010C composites, and solidu2010C composites, are among the Liu2010C composites' next generation high-u2010c composites' capabilities.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/cjoc.202200612


Characteristics of in situ synthesized activated carbon and metal‐organic framework composites for CH4/N2 gas mixture separation

Further, the optimal adsorption chemistry of CH4/N2 gas mixture on the materials MIL-u2010101, DFACu2010MIL2010101, and NMAC U2010101 were predicted based on the optimal adsorption solution theory. These three materials for CH4 and N2 were typical type I characteristics, and the adsorption selectivity S for binary CH4/N2 gas mixture is greater than 2. Doping activated carbon could properly regulate MIL-u2010101 crystals and increased the selectivity by a certain degree, which provides a certain guiding light for the design and use of MIL-u2010101 metal-u2010organic framework materials.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/ghg.2196

* 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