Insight in the outside: materials science at the atomic level using LEIS

Autor: Minna Viitanen, A. Gildenpfennig, de M Marco Ridder, HH Hidde Brongersma

Publikováno v: Journal of the European Ceramic Society. 23:2761-2767

Modern low energy ion scattering (LEIS) can provide new information on the atomic composition of both outermost surface and sub-surface layers. The wide scope of new possibilities is illustrated with results on ceramics, polymers and ultra-thin layer

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e3329d71032689dabc8105cd853bd6b4
https://doi.org/10.1016/s0955-2219(03)00287-5

Insight in the outside: New applications of low-energy ion scattering

Autor: Anja Gildenpfennig, Jozua Laven, Minna Viitanen, Arnoud Denier van der Gon, Arie Knoester, W.P.A. Jansen, HH Hidde Brongersma, Robert D. van de Grampel

Publikováno v: Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 190(1-4), 11-18. Elsevier

Low energy ion scattering is used to selectively probe the outermost atomic layer of the surface. The development of double toroidal analyzers has improved the detection sensitivity of low energy ion scattering by orders of magnitude. The features of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4cbc0741f6c7ac09caf91e8fc6390cf3
https://research.tue.nl/en/publications/341ac227-b3d7-4a12-8894-b015bcbc6ee1

Cu/ZnO and Cu/ZnO/SiO2 catalysts studied by low-energy ion scattering

Autor: Minna Viitanen, van Rg Robert Welzenis, Wpa Wim Jansen, DS Brands, HH Hidde Brongersma, Alfred Bliek, E.K. Poels

Publikováno v: Journal of Physical Chemistry B, 103(29), 6025-6029. American Chemical Society

Low-Energy Ion Scattering (LEIS) was employed to study the surface of unsupported and silica-supported Cu/ZnO catalysts. It was shown that, by applying isotopic enrichment (63Cu and 68Zn), the copper and zinc signals can be separated. LEIS measuremen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5cd9894ecb40b6f8899d855587f1a03
https://research.tue.nl/en/publications/f7076906-b952-462c-8066-7a9849011368

Preparation of Air Electrodes and Long Run Tests

Autor: Jaakko Lamminen, Minna Viitanen, Juhani Kivisaari, Jari Vuorisalo, Markku J. Lampinen

Publikováno v: Journal of The Electrochemical Society. 138:905-908

In this study we have tested some alternative catalysts for oxygen reduction in an alkaline electrolyte (7 M KOH). The catalysts tested were: CoTMPP, LaNiO 3 , Pt (for comparison), and MnO 2 . The electrodes were manufactured by the rolling method. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::410aedf26107725b7e4b476d90060608
https://doi.org/10.1149/1.2085745

Preparation and measurement of air electrodes for alkaline fuel cells

Autor: Minna Viitanen, Jaakko Lamminen, Markku J. Lampinen, Juhani Kivisaari

Publikováno v: Journal of Power Sources. 32:233-241

The optimum structure and materials for the gas diffusion layer of air electrodes for alkaline fuel cells were studied. These electrodes contain carbon black, pretreated in different ways ( e.g. , boiling nitric acid, heat treatment in different atmo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4eddc8e9f305142962351f9f6382c8c8
https://doi.org/10.1016/0378-7753(90)87016-k