Modification of Catalytic Activity of Cu-Ti Amorphous Alloy Ribbons by Cathodic Hydrogen Charging

Pisarek, M.; Janik-Czachor, M.; Kędzierzawski, P.; Molnar, A.; Rac, B.; Szummer, A.

Artykuł - szczegóły

Tytuł artykułu

Modification of Catalytic Activity of Cu-Ti Amorphous Alloy Ribbons by Cathodic Hydrogen Charging

Autorzy

Pisarek M. , Janik-Czachor M. , Kędzierzawski P. , Molnar A. , Rac B. , Szummer A.

Identyfikatory

Warianty tytułu

Języki publikacji

Abstrakty

Since hydrogen is known to be one of the most efficient embrittling atomic species, cathodic hydrogen charging was used in an attempt to modify the structure, composition and morphology of Cu-Ti amorphous alloy ribbons. Various methods of analysis such as X-ray electron microanalysis, SEM, XRD and electrochemistry, with varying lateral resolution and different information depths, as well as catalytic tests, were used to follow the changes within the ribbons and at the surface, and their interrelations with catalytic activity. The activity in a test reaction (dehydrogenation of 2-propanol) was enhanced up to a conversion level of 66%, which is much higher than that obtained with all other pre-treatments previously applied.

Słowa kluczowe

Cu-Ti amorphous alloys devitrification Cu segregation XRD hydrogen charging catalytic tests X-ray microanalysis (WDS) SEM

Wydawca

Polskie Towarzystwo Chemiczne

Czasopismo

Polish Journal of Chemistry

Rocznik

2004

Tom

Vol. 78 / nr 9

Strony

1379--1389

Opis fizyczny

Bibliogr. 34 poz., rys.

Twórcy

autor

Pisarek M.

Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Kasprzaka 44/52, Poland
Faculty of Materials Science and Engineering, Technical University of Warsaw, Warsaw, Poland

autor

Janik-Czachor M.

Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Kasprzaka 44/52, Poland

autor

Kędzierzawski P.

Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Kasprzaka 44/52, Poland

autor

Molnar A.

Department of Organic Chemistry, University of Szeged, Szeged, Hungary

autor

Rac B.

Department of Organic Chemistry, University of Szeged, Szeged, Hungary

autor

Szummer A.

Faculty of Materials Science and Engineering, Technical University of Warsaw, Warsaw, Poland

Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Kasprzaka 44/52, Poland

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Typ dokumentu

Bibliografia

Identyfikator YADDA

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