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Carbon Metal - Zenodo

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Last Updated: 04 October 2022

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Zeolite templated carbon from Beta replica as metal-free electrocatalyst for CO2 reduction

Zeolite Templated Carbons are a group of materials that include the textural properties of the template zeolites and the high conductivity of graphene-like structures. ZTCs are a popular candidate for CO2 catalytic reduction due to their characteristics. About ten times better than a reference reduced graphene oxide catalyst, we present here for the first time. For the reduction of CO2 to formic acid, metal-free ZTCs obtained from Beta zeolite are a novel energy source for the reduction of CO2 reduction to formic acid, approximately ten times higher than a reference reduced graphene oxide catalyst. The appearance of the oxygen functionalities on ZTCs surface was shown by a specific method to minimize this oxygen content, which was followed by an in-depth investigation by many methods of these materials. The comparison of two ZTCs' performance and characteristics, which were produced by various BEA nanostructures, allows to measure more accurately the changes of the type of oxygen species present in ZTCs to their catalytic behavior.

Source link: https://zenodo.org/record/7100708


Production of material samples of carbon-based composites and metal-diamond composites

Within WP14's challenge 14. 4 is to produce and industrialize materials for extreme thermal control. Composites that combine the characteristics of metals and ceramics with those of carbon allotropes such as graphite and diamond are mixed in the products. This article details the manufacturing of ceramic-graphite and copper-diamond samples used for applications in particle beam intercepting systems and luminescence screens.

Source link: https://zenodo.org/record/7082013


Encapsulation of Nickel Nanoparticles and Homopoly(Vinylsulfonic Acid) in Mesoporous Carbon CMK-3 as an Acid–Metal Bifunctional Catalyst for Tandem Reductive Amination

Supported nickel nanocluster and poly into mesoporous carbon CMK-3, a bi-functional metal/acid heterogeneous catalyst, catalyzed synthesis of secondary arylamines by one-pot reduction of aniline by a remarkably modified catalyst based on a bi-functional metal/acid heterogeneous catalyst. Vinylsulfonic acid has been polymerized in CMK-3 pores by an in situ process. In the presence of NaBH4 at room temperature, in a short reaction time, and without secondary product, the process was carried out. The optimized Ni/PVSA/CMK-3 catalyst exhibits comparable catalytic results thanks to the nickel metals and the acidic nature of polymer embedded in CMK-3's mesoporous channels.

Source link: https://zenodo.org/record/6616120


The Hydration of Carbon Dioxide-Catalysis by Transition Metal Hydroxo Complex Ions

In the absence of effective catalysts, the equilibration rate in aqueous systems is far from instantaneous. Some simple transition metal hydroxo comptex ions can also convert CO 2 to ionic carbonate, but no one so far has reported shows any of the metalloenzyme's activity is anywhere near that of the metalloenzyme. We have now concluded studies of such "carbon dioxide uptake" reactions for a variety of complexes, including the forms Co 2+, Co 2+, and Co (OH)^+_2 waere N 4 ani N 5 ani N 5 represant amine ligand grouping of various types.

Source link: https://zenodo.org/record/6384709

* 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