<abstract xmlns="http://www.w3.org/1999/xhtml">In this paper we present the results of the investigations of nanostructured C-Pd films for hydrogen sensing applications. These C-Pd films were prepared by physical vapor deposition and then annealed in an argon flow at the temperature of 500°C. The structure and morphology of the prepared C-Pd films were investigated using transmission electron microscopy and energy dispersive X-ray spectroscopy. We studied the infiuence of hydrogen on the electrical properties and crystal structure of C-Pd films. It was shown that film resistance changes depended on hydrogen concentration. At lower hydrogen concentration (up to 2 vol.%), the films response increased proportionally to [H2], while above 2 vol.% H2, it was almost constant. This is connected with the formation of a solid solution of hydrogen in palladium at lower H2 concentration and the creation of palladium hydride at higher H2 concentration. X-ray diffraction was used to confirm the formation of Pd-H solid solution and palladium hydride.</abstract>

In this paper we present the results of the investigations of nanostructured C-Pd films for hydrogen sensing applications. These C-Pd films were prepared by physical vapor deposition and then annealed in an argon flow at the temperature of 500°C. The structure and morphology of the prepared C-Pd films were investigated using transmission electron microscopy and energy dispersive X-ray spectroscopy. We studied the infiuence of hydrogen on the electrical properties and crystal structure of C-Pd films. It was shown that film resistance changes depended on hydrogen concentration. At lower hydrogen concentration (up to 2 vol.%), the films response increased proportionally to [H2], while above 2 vol.% H2, it was almost constant. This is connected with the formation of a solid solution of hydrogen in palladium at lower H2 concentration and the creation of palladium hydride at higher H2 concentration. X-ray diffraction was used to confirm the formation of Pd-H solid solution and palladium hydride.

Infiuence of Hydrogen on the Properties of Nanostructured C-Pd Films for Sensing Applications

Tele and Radio Research Institute, Ratuszowa 11, 03-450 Warsaw, Poland

Institute of Physics, PAS, al. Lotnikow 32/46, 02-668 Warsaw, Poland

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

In this paper we present the results of the investigations of nanostructured C-Pd films for hydrogen sensing applications. These C-Pd films were prepared by...

Infiuence of Hydrogen on the Properties of Nanostructured C-Pd Films for Sensing Applications

Published Online: Jun 26, 2014

Page range: 77 - 81

DOI: https://doi.org/10.2478/pjct-2014-0034

Keywords
C-Pd films, hydrogen sensor, GIXD measurements, resistance changes

© 2014 Anna Kamińska et al.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Infiuence of Hydrogen on the Properties of Nanostructured C-Pd Films for Sensing Applications

Published Online: Jun 26, 2014

Page range: 77 - 81

DOI: https://doi.org/10.2478/pjct-2014-0034

KeywordsC-Pd films, hydrogen sensor, GIXD measurements, resistance changes

© 2014 Anna Kamińska et al.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
C-Pd films, hydrogen sensor, GIXD measurements, resistance changes