Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Piotr J. Barczuk"'
Autor:
Tomasz Wojciechowski, Olga A. Krysiak, Jan Augustynski, Krzysztof Bienkowski, Piotr J. Barczuk
Publikováno v:
Catalysis Today. :52-58
In the present work, we investigated the behavior of titanium dioxide photocatalysts decorated with plasmonic metal – gold and silver – nanoparicles (NPs) for the photooxidation of small organic molecules. The TiO2 samples were large surface area
Autor:
Piotr J. Barczuk, Krzysztof Bienkowski, Olga A. Krysiak, Jan Augustynski, Tomasz Wojciechowski
Publikováno v:
Journal of The Electrochemical Society. 164:H667-H669
Autor:
Jan Augustynski, Katarzyna Jakubow-Piotrowska, Piotr J. Barczuk, M. Dolata, Krzysztof Noworyta
Publikováno v:
Solar Energy Materials and Solar Cells. 208:110424
Structure and photoelectrochemical properties of rutile-based TiO2 films formed by high-temperature oxidation of titanium metal are described. It is shown that a chemical etching treatment leads to the activation of initially almost inert film allowi
Autor:
Adam Lewera, Piotr J. Barczuk, Jan Augustynski, Krzysztof Miecznikowski, Agata Królikowska, Renata Solarska
Publikováno v:
Electrochimica Acta. 104:282-288
We report a modification of nanostructured WO3 films by doping with boron. The films were obtained by a direct one-step sol–gel route involving tungstic acid/polyethelene glycol precursor. Raman spectroscopy and X-ray photoelectron spectroscopy (XP
Autor:
Pawel J. Kulesza, Piotr J. Barczuk, K. Skorupska, Mirosław Salamończyk, Krzysztof Miecznikowski, Adam Lewera
Publikováno v:
Journal of Electroanalytical Chemistry. 662:93-99
Unsupported Pt/Sn nanoparticles, that had been prepared via polyol method, were modified with ultra-thin (monolayer-type) films of Keggin heteropolyacids of molybdenum and tungsten. The resulting nanostructured catalysts were investigated using both
Publikováno v:
Journal of Electroanalytical Chemistry. 662:229-239
Spectroelectrochemical studies have been undertaken to explain changes in the capacitance of mesoporous semiconducting WO 3 films, deposited on FTO conductive glass substrates, and immersed in aqueous acidic solutions. The capacitance of the mesoporo
Autor:
Piotr J. Barczuk, Pawel J. Kulesza
Publikováno v:
ECS Transactions. 35:1-8
This article reports on comprehensive studies of electrooxidation of methyl formate at different catalysts. The influence of the nanostructured palladium on the catalytic properties of platinum and platinum-ruthenium commercial nanoparticles towards
Publikováno v:
Electrocatalysis. 2:52-59
A new concept of fabrication, immobilization, and distribution of bimetallic PtRu nanoparticles leading to enhancement of the electrocatalytic oxidation of ethanol is proposed. The approach utilizes poly(diallyldimethylammonium chloride), PDDA, to fu
Autor:
Pawel J. Kulesza, Artur Zurowski, Roberto Marassi, Sonia Dsoke, Aneta Kolary-Zurowska, Piotr J. Barczuk
Publikováno v:
Journal of Electroanalytical Chemistry. 649:238-247
The activity of Vulcan-supported Pt nanoparticles (Pt40%/Vulcan XC-72) towards oxidation of methanol and ethanol is increased by admixing them with zeolite-type cesium salts of heteropolymolybdic and heteropolytungstic acids: Cs2.5H0.5PMo12O40, Cs2.5
Publikováno v:
Journal of Power Sources. 195:2507-2513
As evidenced from the increase of electrocatalytic currents measured under voltammetric and chronoamperometric conditions, the activity of bimetallic Pt–Ru and Pt–Sn nanoparticles towards oxidation of ethanol is increased by modification of their