Results 21 to 30 of about 71,221 (317)

Tailoring nanoporous structures of Ge anodes for stable potassium-ion batteries

open access: yesElectrochemistry Communications, 2019
We present here for the first time the electrochemical behavior of germanium anodes in potassium-ion batteries (KIBs). Nanoporous germanium (np-Ge) samples were fabricated by the chemical-dealloying method using Al as the sacrificial metal. Galvanostatic
Qing Yang   +3 more
doaj   +1 more source

Natural biowaste of banana peel-derived porous carbon for in-vitro antibacterial activity toward Escherichia coli

open access: yesAin Shams Engineering Journal, 2021
Banana peel-derived porous carbon from natural biowaste had been prepared with different annealing temperatures at 300, 400, 500, 600, and 700 °C. The as-prepared carbon powders were carefully characterized with XRD, SEM, TEM, EIS, and XPS measurements ...
Mula Sigiro
doaj   +1 more source

Pore engineering: Structure-capacitance correlations for biomass-derived porous carbon materials

open access: yesMaterials & Design, 2023
As the world’s demand for green energy storage systems continues to increase, electrochemical double-layer supercapacitors based on porous carbon electrodes are receiving more attention than ever.
Bing Yan   +8 more
doaj   +1 more source

Fabrication of Porous Carbon Films and Their Impact on Carbon/Polypropylene Interfacial Bonding

open access: yes, 2021
Porous carbon films were generated by thermal treatment of polymer films made from poly(acrylonitrile-co-methyl acrylate)/polyethylene terephthalate (PAN/PET) blend.
Igor Luzinov   +3 more
core   +1 more source

GASIFICATION OF POROUS CARBON BY CARBON DIOXIDE

open access: yesJOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 1969
A method of analysis is presented for the reaction between a porous solid and a gas when the diffusion resistance is significant. The kinetic expression used is linear with respect to the concentration of reacting gas. As a typical example, experiments of gasification of graphite sph-res with carbon dioxide were carried out and the results were ...
YOSHIDA, KUNIO, KUNII, DAIZO
openaire   +2 more sources

Porous Activated Carbon Prepared from Highland Barley Straw by Phosphoric Acid Activation as a Conductive Agent for Improving Electrochemical Performance of LiFePO4 Cathodes

open access: yesInternational Journal of Electrochemical Science, 2021
Herein, porous activated carbon was synthesized from highland barley straw by phosphoric acid activation and used as a conductive agent for LiFePO4 cathodes. The morphology and microstructure are characterized by scanning electron microscopy and nitrogen
Wenliang Sun, Rusi Hao
doaj   +1 more source

Synthesis of porous carbon materials and their cycling properties in lithium-ion batteries

open access: yes上海师范大学学报. 自然科学版, 2023
Based on the development and research status of porous organic polymers and their derived carbon materials in anode materials of lithium-ion batteries, we explored a synthesis method of porous carbon nanospheres with controllable pore size.
TIAN Hanxiao   +6 more
doaj   +1 more source

Porous Carbon–Carbon Composite Materials Obtained by Alkaline Dehydrochlorination of Polyvinyl Chloride

open access: yes, 2022
Porous carbon–carbon composite materials (PCCCM) were synthesized by the alkaline dehydrochlorination of polyvinyl chloride solutions in dimethyl sulfoxide containing the modifying additives of a nanostructured component (NC): graphite oxide (GO ...
Mikhail V. Trenikhin   +13 more
core   +1 more source

Improvement of Hydrogen Desorption Characteristics of MgH2 With Core-shell Ni@C Composites

open access: yesMolecules, 2018
Magnesium hydride (MgH2) has become popular to study in hydrogen storage materials research due to its high theoretical capacity and low cost. However, the high hydrogen desorption temperature and enthalpy as well as the depressed kinetics, have severely
Cuihua An, Qibo Deng
doaj   +1 more source

Change of Optical Properties of Carbon-Doped Silicon Nanostructures under the Influence of a Pulsed Electron Beam

open access: yesJournal of Nanotechnology, 2022
In the work, porous silicon with observed photoluminescence was made from a p-type silicon substrate doped with boron and crystallographic orientation (100) using the method of electrochemical etching in a solution containing H2(SiF6) (silicon ...
M. B. Darmenkulova   +4 more
doaj   +1 more source

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