Results 21 to 30 of about 206,520 (245)

Fractal Generalization of the Scher–Montroll Model for Anomalous Transit-Time Dispersion in Disordered Solids

open access: yesMathematics, 2020
The Scher–Montroll model successfully describes subdiffusive photocurrents in homogeneously disordered semiconductors. The present paper generalizes this model to the case of fractal spatial disorder (self-similar random distribution of localized states)
Renat T. Sibatov
doaj   +1 more source

Investigation of the Synergism Effect and Electrocatalytic Activities of Pt and Ru Nanoparticles Supported on the Carbon Aerogel-Carbon Nanotube (CA-CNT) for Methanol Oxidation Reaction (MOR) [PDF]

open access: yesJournal of Renewable Energy and Environment, 2020
Given that the catalyst and catalyst support properties have a key role to play in the electrochemical activity of fuel cells, in this research, the synergism effect of Pt and Ru nanoparticles reduced on catalyst support [synthesized Carbon Aerogel ...
Masoumeh Javaheri   +2 more
doaj   +1 more source

Effects of Functionalization of TiO2 Nanotube Array Sensors with Pd Nanoparticles on Their Selectivity

open access: yesSensors, 2014
This study compared the responses of Pd-functionalized and pristine titanate (TiO2) nanotube arrays to ethanol with those to acetone to determine the effects of functionalization of TiO2 nanotubes with Pd nanoparticles on the sensitivity and selectivity.
Sunghoon Park   +4 more
doaj   +1 more source

Ruthenium-Loaded Halloysite Nanotubes as Mesocatalysts for Fischer–Tropsch Synthesis

open access: yesMolecules, 2020
Halloysite aluminosilicate nanotubes loaded with ruthenium particles were used as reactors for Fischer–Tropsch synthesis. To load ruthenium inside clay, selective modification of the external surface with ethylenediaminetetraacetic acid, urea, or acetone
Anna Stavitskaya   +8 more
doaj   +1 more source

Fabrication and Characterization of Nanoporous Niobia, and Nanotubular Tantala, Titania and Zirconia via Anodization

open access: yesJournal of Functional Biomaterials, 2015
Valve metals such as titanium (Ti), zirconium (Zr), niobium (Nb) and tantalum (Ta) that confer a stable oxide layer on their surfaces are commonly used as implant materials or alloying elements for titanium-based implants, due to their exceptional high ...
Sepideh Minagar   +2 more
doaj   +1 more source

Field emission characteristics of a nanotube-fullerene composite: a theoretical study

open access: yesMaterials Research Express, 2021
First-principles calculations are used to investigate electronic and field emission characteristics of a nanotube-fullerene composite (a single-walled carbon nanotube (CNT) with a C _20 molecule), which indicate that emission currents of the CNT ...
Shunfu Xu   +5 more
doaj   +1 more source

Study on the underpinning mechanisms of microwave-induced synthesis of carbon-coated metal nanoparticles

open access: yesFrontiers in Energy Research, 2023
Microwave-induced metal arc discharge provides an intriguing solution for the synthesis of carbon-coated metal nanoparticles (M@CNPs) due to its fast formation and improved quality of products, however, the underpinning reaction mechanism is not ...
Pingshan Jia   +5 more
doaj   +1 more source

Ferroelectric Ordering in Ice Nanotubes Confined in Carbon Nanotubes [PDF]

open access: yesNano Letters, 2008
4 pages and 4 ...
Xiao Cheng Zeng   +4 more
openaire   +4 more sources

Fonksiyonelleştirilmiş Titanyum Dioksit Nanotüp Sentezi

open access: yesSüleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2020
TiO2 nanotüp sentezi ile ilgili yapılan çalışmalarda belirtilen koşullarda nanotüplerin oluştuğu yönünde sonuçlar verilirken, karakterizasyon sonuçlarının nano malzemenin toz formuna ait olduğu, tübüler yapılara ait formların oluşmadığı görülmektedir.
Banu TÜRKASLAN   +2 more
doaj   +1 more source

Nanospintronics with carbon nanotubes [PDF]

open access: yesSemiconductor Science and Technology, 2006
One of the actual challenges of spintronics is the realization of a spin-transistor allowing to control spin transport through an electrostatic gate. In this review, we report on different experiments which demonstrate a gate control of spin transport in a carbon nanotube connected to ferromagnetic leads.
Cottet, Audrey   +8 more
openaire   +9 more sources

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