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Wyszukujesz frazę "Pierozynski, B." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
The effect of cathode deactivation upon hydrogen evolution reaction on nickel-coated carbon fibre
Autorzy:
Pierozynski, B.
Powiązania:
https://bibliotekanauki.pl/articles/363150.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
dezaktywacja katod
HER
NiCCF
niklowane włókno węglowe
cathode deactivation
nickel-coated carbon fibre
Opis:
The process of cathodic evolution of hydrogen at metal (or composite) electrodes is one of the most widely studied electrochemical reactions. It has important technological significance in the fields of fuel-cell and battery development. Nickel-coated carbon fibre (NiCCF) offers an attractive, large surface-area catalyst material for the process of cathodic evolution of hydrogen. Such composite materials could potentially be used to produce large area, woven cathodes for the generation of H2 in commercial electrolysers. Kinetics of the hydrogen evolution reaction (HER) at commercially available NiCCF material (Toho-Tenax fibre) were studied in 30 wt.% KOH solution, at room temperature over the cathodic overpotential range: -100 to - 500 mV/RHE. Significance of the cathode deactivation effect (in relation to the corresponding values of the charge-transfer resistance and the cathode potential parameters) upon continuous alkaline water electrolysis has also been discussed.
Źródło:
Environmental Biotechnology; 2010, 6, 1; 1-5
1734-4964
Pojawia się w:
Environmental Biotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fuel cells - the future of electricity generation for portable applications
Autorzy:
Pierozynski, B.
Powiązania:
https://bibliotekanauki.pl/articles/363228.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
ogniwo paliwowe PEM
przenośne aplikacje
energia odnawialna
paliwo kopalne
fossil fuel
PEM fuel cells
portable applications
renewable energy
Opis:
Fossil fuels, including crude oil, coal and natural gas are currently the key resources for world energy supply. Hence, the majority of electrical energy production is realized via combustion of conventional fuels, such as: coal, methane and petroleum. However, increasing emissions of pollutants and greenhouse gases from fossil fuel-based electricity production (especially withrespect to SO2, NOx and CO2 discharge) bring about major environmental concerns. In addition, the status of conventional (fossil) fuel reserves is still uncertain. Thus, production of "clean" electrical energy, especially from renewable resources, such as: biomass, solar, photovoltaic, geothermal, hydro and wind energy sources becomes of significant importance to the world's economy. Fuel cells (FCs) are electrochemical cells, which convert a source fuel (e.g. H2, CH4, alcohols, etc.) into an electric current. They generate electricity inside a cell via electrochemical reactions between a fuel and an oxidant, in the presence of an electrolyte. In general, most of fuel cells can be operated as emission-free devices, based on fuels produced fromrenewable resources. With a variety of possible FC types, fuel cells could potentially serve in stationary, transportation or portable applications. This work is a review of the state-of-the-art in fuel cell technology, with respect to FC employment in portable applications.
Źródło:
Environmental Biotechnology; 2008, 4, 2; 60-64
1734-4964
Pojawia się w:
Environmental Biotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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