Wyniki wyszukiwania - BazTech

1

Beta-kartki i ich rola we włóknach nici pajęczej

Pożarowska E., Runka T.

LAB Laboratoria, Aparatura, Badania

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2018

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R. 23, nr 2

18--20, 26

2

An innovative system for piston engine combustion with laser-induced ignition of the hydrocarbon fuel consisting carbon nanotubes

Kałużny J., Merkisz J., Gallas D., Runka T., Kozak M., Pielecha I.

Combustion Engines

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2017

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R. 56, nr 1

3--14

EN

The article proposes the concept of a new piston engine combustion system that is designed to meet future-oriented ecological requirements. The concept is to use ethanol as a fuel, in which a slurry of carbon nanotubes would be formed, which are characterized by the ability to ignite using a pulse of laser light fed into the combustion chamber. Modifying the shape of the light beam that penetrates the combustion chamber would allow to control the position and the size of the area in which the ignition of fuel would occur. The originality of the concept is to combine the latest achievements in the field of nanotechnology in the construction of lasers and the production of biofuels, so as to contribute to improving the environmental performance of engines using the existing synergies. The article discusses the prospects for the use of bioethanol as a fuel with zero carbon balance, a critical review of related research on light pulse initiated ignition of hydrocarbon fuels from carbon nanotubes was presented, and a review of studies of laser ignition for conventional fuels. The results of studies of carbon nanotubes suspensions in a variety of fuels conducted by the authors in order to seek solutions for the stable dispersions formation, that are resistant to nanotube agglomeration and sedimentation. The summary indicates directions for further research highlighting the importance of environmental impact.

3

Zastosowanie spektroskopii Ramana do analizy i identyfikacji szminek

Stańczuk M., Runka T.

LAB Laboratoria, Aparatura, Badania

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2016

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R. 21, nr 3

6--13

4

Zastosowanie nanostruktur platyny, palladu i srebra we wzmocnionej powierzchniowo spektroskopii Ramana

Bińczyk M., Nowak M., Marciniak Ł., Runka T., Jastrząb R.

LAB Laboratoria, Aparatura, Badania

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2016

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R. 21, nr 5

8--11

PL

Zgodnie z wiedzą literaturową w nanostrukturach platyny oraz palladu możliwe jest wzbudzanie plazmonów powierzchniowych falami z zakresu widzialnego, a zatem możliwe jest ich zastosowanie we wzmocnionej powierzchniowo spektroskopii Ramana (SERS). Ponadto oba metale wykazują bardzo dobre właściwości katalityczne, dzięki czemu potencjalnie umożliwiają wzmocnienie sygnału ramanowskiego pochodzącego od produktów reakcji dla których są katalizatorami. W pracy przedstawiono i porównano uzyskane wzmocnienie sygnału ramanowskiego pochodzącego od rodaminy 6G osadzonej na nanostrukturach platyny, palladu oraz srebra, które zostały wytworzone metodą osadzania metalu z roztworu na miedzianym podłożu.

5

Nanomateriały SERS-aktywne wykorzystywane w badaniach markerów nowotworowych

Jastrząb R., Nowak M., Skrobańska M., Zabiszak M., Runka T.

LAB Laboratoria, Aparatura, Badania

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2015

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R. 20, nr 4

36--40

PL

W artykule zaprezentowano metody otrzymywania nanomateriałów wykorzystywanych we wzmocnionej powierzchniowo spektroskopii Ramana (SERS). Scharakteryzowano powierzchnie zsyntetyzowanych materiałów oraz ich efektywność we wzmacnianiu sygnału Ramana substancji referencyjnej, rodaminy 6G. Przedstawiono dotychczasowe dane bibliograficzne dotyczące zastosowania wzmocnionej spektroskopii Ramana do detekcji związków będących markerami chorób nowotworowych oraz substancji, które potencjalnie mogą służyć jako markery w stanach chorobowych.

6

Fabrication and electrochemical properties of diamond layers grown on tungsten wire by HF CVD method

Torz-Piotrowska R., Uniszkiewicz C., Szreiber M., Wrzyszczynski A., Staryga E., Runka T., Kasprowicz D.

Optica Applicata

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2009

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Vol. 39, nr 4

951-957

EN

Un-doped polycrystalline diamond thin films have been grown on tungsten substrates by hot filament chemical vapor deposition (HF CVD) using a hydrogen and methanol vapor mixture. Diamond films have been analyzed by Raman spectroscopy and scanning electron microscopy (SEM). Cyclic voltammetric behavior of diamond films of different quality and morphology has been studied in acetonitryle with (n-Bu)4NClO4 and in 0.1 M KCl aqueous solutions. Preliminary cyclic voltammetry (CV) measurements showed that our electrodes have a wide potential range over which negligible background response current is observed. The potential windows depend on the type of solvent. In the case of water solution the decomposition of water occurs electrochemically and evolves O2 during positive (anodic) polarization and H2evolution during negative (cathodic) polarization. The electrochemical properties of diamond electrodes have been evaluated by performing cyclic voltammetry measurements in [Fe(CN)6]3-/4- with 0.1 M KCl. The electrode demonstrates reversible kinetics during electrochemical analysis.

7

Electron paramagnetic resonance and scanning electron microscopy characterization of diamond films fabricated by HF CVD method

Fabisiak K., Szreiber M., Uniszkiewicz C., Runka T., Kasprowicz D.

Optica Applicata

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2009

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Vol. 39, nr 4

833-837

EN

Defects in diamond films, produced by the hot filament chemical vapour deposition (HF CVD) of methanol and hydrogen mixture as function of gas composition, were investigated by electron paramagnetic resonance (EPR), scanning electron microscopy (SEM) and Raman spectroscopy measurements. We found an isotropic g-value (2.003š0.0002) independent of growth conditions. The peak-to-peak of EPR line width changes from 0.3 to 0.6 mT and the spin density increases from 2.3ź1017 to 3.2ź1018 spin/cm-3 with increasing concentration of methanol vapour. The EPR line in general shows double character and was found to be superposition of two components, a narrower Lorentzian and a broader Gaussian, suggesting the existence of two different types of defects in diamond layer. EPR measurements were supported by SEM observation.