Results 21 to 30 of about 3,342,283 (351)

The Effect of an External Magnetic Field on the Electrochemical Capacitance of Nanoporous Nickel for Energy Storage

open access: yesNanomaterials, 2019
This work investigates the effect of a magnetic field on the electrochemical performance of nanoporous nickel (np-Ni). We first compare the electrochemical capacitance of np-Ni electrodes, which were prepared using the chemical dealloying strategy under ...
Haixia Zhang, Zhifei Han, Qibo Deng
doaj   +1 more source

Nanowrinkled Carbon Aerogels Embedded with FeN x Sites as Effective Oxygen Electrodes for Rechargeable Zinc-Air Battery. [PDF]

open access: yes, 2019
Rational design of single-metal atom sites in carbon substrates by a flexible strategy is highly desired for the preparation of high-performance catalysts for metal-air batteries.
Chen, Alan P   +15 more
core   +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

Diffusion of volatile organic chemicals in porous media. 2. alcohol/templated porous carbon systems [PDF]

open access: yes, 2006
The aim of the present report was to measure the diffusion coefficients, modes of transport, and activation energies of some alcohols into templated porous carbons.
Sakintuna, Billur   +2 more
core   +1 more source

Recent advances: Biomass-derived porous carbon materials

open access: yesSouth African Journal of Chemical Engineering, 2023
Biomass-derived porous carbon materials are a new type of popular environmentally friendly materials that have attracted researchers worldwide attention due to their well-developed and easy control pore structure, high specific surface area, higher ...
Bakhytzhan Lesbayev   +6 more
doaj   +1 more source

Selective electrolysis of CO2 to CO on ultrathin In2Se3 nanosheets

open access: yesElectrochemistry Communications, 2019
Electroreduction of CO2 to fuels or valuable chemicals is a promising way to mitigate the greenhouse effect. Herein, ultrathin In2Se3 nanosheets are reported as a robust catalyst for CO2-to-CO conversion with a faradaic efficiency of 89% and a stable ...
Fang Lü   +7 more
doaj   +1 more source

Effect of Pore Structure of ZIF-9 Based Porous Carbon/Carbon Fiber Composite Material on Performance of Lithium-sulfur Battery

open access: yesTaiyuan Ligong Daxue xuebao, 2021
A high-density array of ZIF-9 was grown on the carbon fiber of carbon paper by a solvothermal method, followed by one-step pyrolysis and reoxidation to form a ZIF-9 based porous carbon/carbon fiber conductive composite material.
Panpan LIU   +7 more
doaj   +1 more source

Porous Graphene-like Carbon from Fast Catalytic Decomposition of Biomass for Energy Storage Applications [PDF]

open access: yes, 2019
A novel carbon material made of porous graphene-like nanosheets was synthesized from biomass resources by a simple catalytic graphitization process using nickel as a catalyst for applications in electrodes for energy storage devices.
Gómez Martín, Aurora   +5 more
core   +1 more source

Transition-metal-based electrocatalysts for hydrazine-assisted hydrogen production

open access: yesMaterials Today Advances, 2020
Electrocatalytic water splitting is considered as the next-generation strategy for large-scale ultrapure hydrogen production. However, the high thermodynamic potential (1.23 V vs.
H. Liu, Y. Liu, M. Li, X. Liu, J. Luo
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

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