Results 1 to 10 of about 15,865 (204)

Carbon Microsphere-Supported Metallic Nickel Nanoparticles as Novel Heterogeneous Catalysts and Their Application for the Reduction of Nitrophenol [PDF]

open access: goldMolecules, 2021
Nickel nanoparticles are gaining increasing attention in catalysis due to their versatile catalytic action. A novel, low-cost and facile method was developed in this work to synthesize carbon microsphere-supported metallic nickel nanoparticles (Ni-NP/C ...
Melinda Krebsz   +4 more
doaj   +2 more sources

A lightweight polyurethane-carbon microsphere composite foam for electromagnetic shielding [PDF]

open access: golde-Polymers, 2022
In this study, we have produced a lightweight foam composite material by a simple freeze-drying method, which is composed of carboxylated multi-walled carbon nanotubes (MWCNTs), mesoporous carbon hollow microspheres (MCHMs), water-based polyurethane (WPU)
Liang Shaofeng   +3 more
doaj   +2 more sources

Study on the local electric field effect of electron transfer in straw-derived carbon microsphere-WO3 composite materials: Photocatalytic hydrogen production performance and mechanism under solar light

open access: goldEnergy Nexus
Solar photocatalytic hydrogen production is an important technology for green hydrogen energy production. However, due to the limitation of the light absorption band of photocatalysts, the most commonly used catalysts are difficult to achieve efficient ...
Zhou Yunlong, Sun Meng
doaj   +2 more sources

Tailoring Carbon Nanotube Microsphere Architectures with Controlled Porosity [PDF]

open access: greenAdvanced Functional Materials, 2019
AbstractNanomaterials are at the core of fuel cell electrodes, providing high‐area catalytic, proton, and electron conducting surfaces, traditionally on carbon black supports. Other carbons, e.g., carbon nanotubes (CNTs) and graphene are less prone to oxidation; however, their handling is not trivial due to health risks associated with their size ...
Zishuai Zhang   +6 more
openaire   +4 more sources

Effect of Solution pH on the Carbon Microsphere Synthesized by Hydrothermal Carbonization

open access: yesProcedia Environmental Sciences, 2011
AbstractCarbon microspheres(CMSs) in a diameter of 10colonm were prepared by the hydrothermal carbonization of starch under different solution pH value. The structures and surface chemical properties of obtained CMSs before and after carbonization were characterized and compared by SEM images, nitrogen adsorption isotherms and FT-IR spectra.
Liang, JiLei, Liu, YiHong, Zhang, Junbo
exaly   +2 more sources

CARBON CRYOGEL MICROSPHERE FOR ETHYL LEVULINATE PRODUCTION: EFFECT OF CARBONIZATION TEMPERATURE AND TIME [PDF]

open access: greenJournal of Engineering Science and Technology, 2016
The side products of biomass and bio-fuel industry have shown potential in producing carbon catalyst. The carbon cryogel was synthesized from ligninfurfural mixture based on the following details: 1.0 of lignin to furfural (L/F) ratio, 1.0 of lignin to ...
MUZAKKIR M. ZAINOL   +3 more
doaj   +1 more source

Synthesis and Properties of Carbon Microspheres from Waste Office Paper

open access: yesMolecules, 2023
As a kind of biomass resource, waste office paper can be used as a carbon precursor to prepare carbon materials. In this work, carbon microspheres with regular shape, uniform particle size and high carbon content were successfully prepared from waste ...
Mannan Yang   +6 more
doaj   +1 more source

Ferromagnetism of Nanographite Structures in Carbon Microspheres [PDF]

open access: yesIEEE Transactions on Magnetics, 2016
Carbon microspheres with unusual magnetic properties have been prepared by the method of solid-phase pyrolysis where metal-free phthalocyanine was used as a precursor. The morphology, structure, and magnetic properties of prepared samples were investigated using electron microscopy, magnetometry, and electron paramagnetic resonance. Carbon microspheres
Sharoyan, Eduard   +6 more
openaire   +2 more sources

A magnetic-void-porous MnFe2O4/carbon microspheres nano-catalyst for catalytic ozonation: Preparation, performance and mechanism

open access: yesEnvironmental Science and Ecotechnology, 2021
Wastewater treatment is essential to guarantee human health and ecological security. Catalytic ozonation with nanocatalysts is a widely studied and efficient treatment technology.
Xiaoguang Jin   +5 more
doaj   +1 more source

Synthesis Mechanism of Carbon Microsphere from Waste Office Paper via Hydrothermal Method

open access: yesBioResources, 2022
Carbon microsphere was successfully synthesized from waste office paper via hydrothermal method and high temperature treatment in nitrogen atmosphere. The process of carbon microsphere synthesis from waste office paper fiber using concentrated sulfuric ...
Mannan Yang   +4 more
doaj   +2 more sources

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