Results 11 to 20 of about 643,776 (291)

Near‐Infrared Light‐Driven CO2 Reduction on Cup‐Stacked Carbon Nanotubes

open access: yesAngewandte Chemie
AbstractCarbon nanotubes feature one‐dimensional nature of collective excitations, wherein strong confinement of surface plasmons severely hinders the liberation of hot electrons (HEs), posing grand challenges for their utilization in photochemistry.
Suchan Song   +7 more
openaire   +3 more sources

Unveiling the Atomic and Electronic Structure of Stacked-Cup Carbon Nanofibers

open access: yesNanoscale Research Letters, 2021
We report results of comprehensive experimental exploration (X-ray photoemission, Raman and optical spectroscopy) of carbon nanofibers (CNFs) in combination with first-principles modeling. Core-level spectra demonstrate prevalence of sp2 hybridization of
D. W. Boukhvalov   +8 more
doaj   +1 more source

Stacked book graphs are cycle-antimagic

open access: yesAIMS Mathematics, 2020
A family of subgraphs of a finite, simple and connected graph $G$ is called an edge covering of $G$ if every edge of graph $G$ belongs to at least one of the subgraphs.
Xinqiang Ma   +4 more
doaj   +1 more source

The Use of Calcium Sulfate/Hydroxyapatite Bone Graft Substitute to Restore Acetabular Bone Loss in Revision Total Hip Arthroplasty

open access: yesArthroplasty Today, 2023
Acetabular bone loss is not uncommon when performing revision total hip arthroplasty. This can create a challenge, especially on the acetabular side. In the present report, our patient presented with aseptic loosening of the acetabular component.
Stephen T. Duncan, MD   +1 more
doaj   +1 more source

Effect of fine structure and pore volume in the Marimo-like carbon cathode material on the oxygen reduction reaction for the polymer electrolyte fuel cell

open access: yesSN Applied Sciences, 2023
We measured the rotating ring-disk electrode (RRDE) voltammetry curves of a Pt catalyst supported on Marimo-like carbon (MC) to clarify the effect of carbon nanofilaments (CNFs) morphology and fine structures consisting of MC cathode material on the ...
M. Shiraishi   +4 more
doaj   +1 more source

Solution Combustion Synthesis of Ni/Al2O3 Catalyst for Methane Decomposition: Effect of Fuel

open access: yesApplied Sciences, 2023
The synthesis of a 90% Ni/Al2O3 catalyst via solution combustion synthesis with various fuels was studied in this work. Catalysts with a high content of the active component (i.e., nickel) were obtained as a result of the combustion of Ni(NO3)2·6H2O and ...
Pavel B. Kurmashov   +5 more
doaj   +1 more source

Stacked-cup multiwall carbon nanotubes as components of energy-intensive suspension jet fuels

open access: yesТонкие химические технологии, 2020
Objectives. The addition of high-density carbon materials to jet fuels can lead to a significant increase in the volumetric energy of the fuel combustion.
L. S. Karpushenkava   +2 more
doaj   +1 more source

Computational study of boron nitride nanotube synthesis: how catalyst morphology stabilizes the boron nitride bond [PDF]

open access: yes, 2009
In an attempt to understand why catalytic methods for the growth of boron nitride nanotubes work much worse than for their carbon counterparts, we use first-principles calculations to study the energetics of elemental reactions forming N2, B2 and BN ...
A. S. Foster   +4 more
core   +3 more sources

Modelagem da adsorção de compostos orgânicos voláteis sobre nanotubos de carbono cup-stacked usando o modelo da força motriz linear - doi: 10.4025/actascitechnol.v32i2.4817

open access: yesActa Scientiarum: Technology, 2010
Os compostos orgânicos voláteis (COV) são importante classe de poluentes do ar, e a adsorção tem sido largamente empregada no seu tratamento há vários anos.
Waldir Nagel Schirmer   +3 more
doaj   +1 more source

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