Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Nathalie Martz"'
Autor:
Egberto Gomes Franco, Almir Oliveira-Neto, Estevam Vitório Spinacé, Marcelo Linardi, Nathalie Martz, Marian Mazurek, Hartmut Fuess
Publikováno v:
Materials Research, Vol 8, Iss 2, Pp 117-120 (2005)
The purpose of this investigation was to compare catalysts produced by the Bönnemann - colloidal method (PtRu (B1) and PtRu (B2)), and those produced by the spontaneous deposition method (PtRu (SD)). The catalysts produced by both methods had good e
Externí odkaz:
https://doaj.org/article/33db1a2a3d9c4c34a300a065663904af
Publikováno v:
Journal of Applied Electrochemistry. 35:85-90
Different Pt/Me/Pc and Pt/Me/Complex catalysts (with Me=Metal: Co, Ni, and Pc=phthalocyanine) were synthesized by an impregnation method. A commercially available platinum catalyst purchased from E-TEK. was impregnated with solutions of cobalt phthal
Autor:
David Rafaja, Henrik Siegle, Mohammad Ghafari, Peter Schmollngruber, Gerhard Miehe, Horst Hahn, Paul Farber, B. Stahl, Nathalie Martz, Hartmut Fuess, Jörg Ebert, Michael Knapp
Publikováno v:
Thin Solid Films. 460:256-263
Annealing of the (1.1 nm Co90Fe10/2.2 nm Cu)×20 and (1.1 nm Co90Fe10/2.2 nm Cu85Ag10Au5)×20 multilayers at 235 °C improved their magnetoresistance as compared to the virgin samples. Annealing at higher temperatures resulted in degradation of the m
Publikováno v:
Journal of Applied Electrochemistry. 34:345-348
Publikováno v:
Phys. Chem. Chem. Phys.. 6:3557-3562
Carbon-supported Pt–Ru (1 ∶ 1) catalysts were synthesized from aqueous solutions of Pt IV and Ru IV salts by two different reduction methods and in an organic solvent according to a slightly-modified Boennemann synthesis. X-ray absorption spectro
Autor:
Nathalie Martz, E. Aricó, Marcelo Linardi, Egberto Gomes Franco, Christina Roth, Hartmut Fuess
Publikováno v:
Materials Science Forum. :4-10
The Bonnemann method was chosen to synthesize carbon-supported Pt-Ru-Mo electrocatalyst powders, as this method leads to highly-dispersed nanoparticles with an average particle size of approximately 2 nm. Structural characterization of the resulting
Publikováno v:
Physical Chemistry Chemical Physics. 3:315-319
Carbon-supported Pt–Ru (1:1)-catalysts have been synthesized by two reduction methods in an aqueous phase and in a third way in an organic solution and characterized in comparison to a commercial Pt–Ru/C catalyst purchased from E-TEK. X-ray diffr
Publikováno v:
Physical Chemistry Chemical Physics. 4:3555-3557
A special in-situ PEM fuel cell has been developed to make XAFS measurements during hydrogen and direct methanol operation possible. The chosen set-up in transmission allows for the on-line monitoring of changes in the catalysts oxidation states and
Publikováno v:
MRS Proceedings. 756
In-situ XAS studies have been carried out on PEM fuel cells in methanol and hydrogen operation. This has become possible due to a recently developed PEM fuel cell (single cell) equipped with inherent carbon fibre windows to allow x-ray studies in tra
Publikováno v:
Journal of The Electrochemical Society. 149:E433
Carbon-supported Pt-Ru (1:1) catalysts were synthesized from aqueous solutions of Pt(IV) and Ru(IV) salts by two different reductive methods and characterized in comparison to a commercial Pt-Ru/C catalyst purchased from E-TEK. Inc. The three catalys