Results found: 3

Number of results on page

Search results

Sort By:

Limit search:

The effect of alloying on the H-atom adsorption on the (100) surfaces of Pd-Ag, Pd-Pt, Pd-Au, Pt-Ag, and Pt-Au. A theoretical study

100%

Matczak P., Romanowski S.

Open Chemistry

2011

vol. 9

issue 3

474-480

The effect of alloying on the adsorption of atomic hydrogen was studied using density functional theory (DFT). In the study the (100) surfaces of Pd-Ag, Pd-Pt, Pd-Au, Pt-Ag, and Pt-Au alloys were considered by means of a cluster model. The structural and energetic properties of the H atom adsorbed on the Pd4Me (Me = Ag, Pt, Au) and Pt4Me (Me = Pd, Ag, Au) clusters were calculated and compared with the H-atom adsorption on monometallic clusters. The effect of alloying on the H-atom adsorption is evident for all the investigated bimetallic systems. However, it strongly depends on the second metal atom, Me, is placed in the surface layer or in the subsurface one. In general, the H atom adsorbed in a site containing the second metal exhibits different properties from those characteristic of its adsorption on Pd(100) and Pt(100). Hence, the modified interaction between atomic hydrogen and the alloyed surfaces may increase the selectivity of the catalytic hydrogenation reactions on such surfaces.

Mechanlam of the anodic dissolution of the ARMCO iron in HClO₄ solutions in mixed water-alcohol solvents. II

100%

Romanowski S., Scholl H., University of Łódź I. o. C.

Acta Universitatis Lodziensis. Folia Chimica

1985

vol. 5

Przedyskutowano propozycje mechanizmu reakcji anodowego roztwarzania żelaza ARMCO w kwaśnych roztworach w mieszanych rozpuszczalnikach woda-alkohol. W oparciu o izoterme Frumkina przedyskutowano adsorpcyjne efekty cząstek biorących udział w decydującym stadium reakcji elektrodowej.

ARitCO iron anodic diaeolution in HClO₄ solutions in mixed water-alcohol solvents has been investigated. On the basis of Prunkin’s isotherm the adsorptive effects of the particles involved in the electrode reaction determining step has been discussed.

Some Attempts of Electrochemical Oxidation of Human Blood Hemoglobine on the Gold Electrode

81%

Grzelak B., Augustyniak W., Rogoziński J. M., Romanowski S., Bogusław Grzelak - Department of General and Inorganic Chemistry I. o. C., Wiesław Augustyniak - Station of Blood Donors M. H., Jan M. Rogoziński - Clinic of Diabetology A. o. M., Stanisław Romanowski - Department of General and Inorganic Chemistry I. o. C.

Acta Universitatis Lodziensis. Folia Chimica

1988

vol. 8

Cyclic chronovoltamperometric method was applied in attempts of oxidation of deoxyhemoglobin human blood solutions in different anticoagulants on the gold electrode. On the basis of obtained results it was assumed that the oxidation of hemoglobin in 3.8% sodium citrate solution and also in 1% NaCl and 0.5% NaF mixtures is possible.

Metodą chronowoltamperometrii cyklicznej wykonano próby utlenienia roztworów odtlenowanej hemoglobiny w różnych antykoagulantach na elektrodzie złotej. Na podstawie osiągniętych wyników sugeruje się, że jest możliwe utlenienie hemoglobiny w 3,8% roztworze cytrynianu sodu i w mieszaninach 1% NaCl z 0,5% NaF.

Refine search results

2 Acta Universitatis Lodziensis. Folia Chimica

1 Open Chemistry

1 2011

1 1988

1 1985

3 Romanowski S.

1 Augustyniak W.

1 Bogusław Grzelak - Department of General and Inorganic Chemistry I. o. C.

1 Grzelak B.

1 Jan M. Rogoziński - Clinic of Diabetology A. o. M.

1 Matczak P.

1 Rogoziński J. M.

1 Scholl H.

1 Stanisław Romanowski - Department of General and Inorganic Chemistry I. o. C.

1 University of Łódź I. o. C.

1 Wiesław Augustyniak - Station of Blood Donors M. H.

Search results

The effect of alloying on the H-atom adsorption on the (100) surfaces of Pd-Ag, Pd-Pt, Pd-Au, Pt-Ag, and Pt-Au. A theoretical study

Mechanlam of the anodic dissolution of the ARMCO iron in HClO₄ solutions in mixed water-alcohol solvents. II

Some Attempts of Electrochemical Oxidation of Human Blood Hemoglobine on the Gold Electrode