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Carbon Nanosheets - DOAJ

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Last Updated: 02 January 2023

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Molten-Salt-Assisted Synthesis of Nitrogen-Doped Carbon Nanosheets Derived from Biomass Waste of Gingko Shells as Efficient Catalyst for Oxygen Reduction Reaction

High-performance fuel cells and metal u2013air batteries require highly developed, cost-effective and durable oxygen reduction reaction catalysts. The Znu2013air battery had higher peak power density, increased specific-capacity, and improved rate-capability when used as a catalyst for an air electrode, as well as improved rate-capability than the commercial Pt/C-based one, demonstrating a more promising application case for metal-air batteries.

Source link: https://doi.org/10.3390/pr9122124


Development of fluorescence/MR dual-modal manganese-nitrogen-doped carbon nanosheets as an efficient contrast agent for targeted ovarian carcinoma imaging

Abstract Background: The development of targeted and specific imaging technologies for the detection of ovarian cancer has huge promise for increasing the patient's quality and longevity. The ovarian carcinoma cells were specifically identified by the Mn-N-CNS@Anti-HE4 nanoprobe with multi-color fluorescences, aided by the tunable photoluminescence of the nanoprobe and Anti-HE4 targeting ligand. In the ovarian carcinoma cells and tumor bearing mice model, benefiting from the high r1 relaxation, the nanoprobe had a targeted and enhanced MR contrast effect.

Source link: https://doi.org/10.1186/s12951-020-00736-w


Molecular Engineering toward High‐Crystallinity Yet High‐Surface‐Area Porous Carbon Nanosheets for Enhanced Electrocatalytic Oxygen Reduction

Abstract Carbon u2010-based nanomaterials have been identified as promising non-u2010noble metal catalysts for wind energy conversion systems. FeCl324H2O as a valid salt template is shown herein as a simple yet effective method to produce a class of 2D Nu2010doped graphitized porous carbon nanosheets with both high crystallinity and high specific surface area by using amine aromatic organoalkoxysilane as an all-u2010in u2010one precursor and FeCl3u00b76H2O. When used as electrocatalysts for oxygen reduction reaction and Znu2013air batteries, the unusual combination of graphitic skeleton with porous structure endows GPCNSs with high catalytic efficiency and long-term stability.

Source link: https://doi.org/10.1002/advs.202103477


A High‐Energy Density Li‐Ion Hybrid Capacitor Fabricated from Bio‐Waste Derived Carbon Nanosheets Cathode and Graphite Anode

Abstract With an intercalation anode and capacitive cathode, the Liu2010ion hybrid capacitor system investigates the possibility of combining high energy and power density in a single energy storage unit with an intercalation anode and capacitive cathode. With a high power density of 69 W kg/u22121 at a power density of 69 W kg u22121, Simultaneously when preparing for LIHC application. The research reveals a unique, cost-effective strategy to produce a crystalline high surface area carbon from any such biou2010waste sources in order to be used as potential electrodes for energy storage applications.

Source link: https://doi.org/10.1002/gch2.202200082


Influence of Carbon Nanosheets on the Behavior of 1,2-Dipalmitoyl-sn-glycerol-3-phosphocholine Langmuir Monolayers

As a result of the combustion processes and their widespread industrial use, carbon nanomaterials are prevalent in the atmospheric aerosol. This research has investigated the interaction of carbon nanosheets with Langmuir monolayers of 1,2-Dipalmitoyl-phosphocholine, the key component of lung surfactant layers, and responsible for some of the most important characteristics of such film in order to shed light on the key physical bases behind the incorporation of carbon nanomaterials into lung surfactant layers. The incorporation of CN into DPPC Langmuir monolayers alters the lateral organization of the DPPC at the interface, which is explained on the basis of two distinct outcomes: particles occupy part of the interfacial region and impoverishment of the interface's lipid composition as a result of lipid adsorption onto the CN surface; and lipid adsorption onto the CN surface.

Source link: https://doi.org/10.3390/pr8010094


Synthesis of Three-Dimensional Carbon Nanosheets and Its Flux Pinning Mechanisms in C-Doped MgB 2 Superconductors

MgB 2 bulks doped with 3D-CNS with a molar ratio composition of MgB 2121x x have been obtained by in situ sintering process. More active C releasing from 3D-CNS at high temperatures can be used to produce efficient flux pinning centers by the substitution of C for B in MgB 2 lattice, according to the results. The positive J c action at low field has been largely harmed by the presence of impurities at MgB 2 grain boundaries, including extra C without replacement and MgO, which is believed to have exacerbated the grain connectivity.

Source link: https://doi.org/10.3390/ma15217530


Preparation of carbon nanosheets from Gelam wood bark and its electrochemical study

Based on x-ray diffraction and FTIR results, the crystallography and surface functionalities of carbon sheets were investigated. Testing of binderies carbon pellets using the cyclic voltammetry technique of three electrodes systems was carried out. In 1100 cm-1, carboxyl u2013 carboxylate bonding vibration in 1600 cm-1, O-C=O and O-C=N bending vibration in 1600 cm-1, hydroxyl bond and hydroxyl bond, according to a FTIR study, the presence of C=C in aromatic of carbon vibration in 1300 u2013 cm-1, O-C=C and O-C=N bending vibration in 1100 cm-1, u2013 2500 cm-1 The carbon crystal structure was only apparent for edge planes, not for side planes. Using base electrolyte, the highest electrical current can be obtained.

Source link: https://doaj.org/article/4e5fd50aa33c4976ab048d85b117fb71


Flocculant-Assisted Synthesis of Graphene-Like Carbon Nanosheets for Oxygen Reduction Reaction and Supercapacitor

The correct treatment of contaminated textile sludge is both important and challenging for the climate and a sustainable future. graphene-like carbon nanosheets were synthesized by simple one-step carbonisation using Fe salt as the graphitization catalyst, using these chitosan-containing textile sludges as precursors. In an alkaline medium, the As-prepared NSC-Fe-2 catalyst demonstrated excellent oxygen reduction reaction activity and a much higher methanol tolerance than commercial Pt/C. NSC-Fe-2 also displayed outstanding specific capacitance of 195 F g u22121 at 1 A g 172121 and superior cycling stability as electrode materials for supercapacitors. This paper develops a simple yet effective method for direct conversion of textile waste sludge to value-added graphene-like carbon, which is considered a promising alternative to meeting environmental and energy requirements.

Source link: https://doi.org/10.3390/nano9081135


Computational and comparative aspects of two carbon nanosheets with respect to some novel topological indices

Several production methods for carbon nanostructures have been demonstrated; doping, functionalization, chemical modification, and filling have been developed; doping, functionalization, refiner, and filling have been established; and manipulation, characterization, and separation of carbon nanostructures are now possible. Such materials are of significant use in a variety of applications due to their uniform thickness of only around 1 nanometer and their high mechanical, thermal, and chemical stability. Molecular descriptors play a crucial role in mathematical chemistry, particularly during the discovery of Quantitative structure property associations and Quantitative structure-activity associations that provide insight into animate effects based on chemical structures. We have derived some novel neighborhood version molecular descriptors for the two carbon nanosheets VC5C7p,q, and the derived formulas for them in this paper.

Source link: https://doi.org/10.1016/j.asej.2021.101672


Porous NaTi2(PO4)3 Nanocubes Anchored on Porous Carbon Nanosheets for High Performance Sodium-Ion Batteries

Due to its open three-dimensional framework design and limited volume changes during the charge and discharge process, NaTi23 has attracted a lot of attention as anode material for sodium ion batteries. Porous NaTi23 nanocubes embedded on porous carbon nanosheets are designed and produced in this series.

Source link: https://doi.org/10.3389/fchem.2018.00396

* 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