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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.59  No.12 (2018)  >  pp.1911-1914

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Surface Properties of Air-Exposed α-Ti-Pd Alloys via XPS and Cross-Coupling Reaction

Ryota Kondo, Seiya Nakamichi, Ryusei Azuma, Yuya Takahashi, Yasushi Obora and Hiroyuki T. Takeshita
Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita 564-8680, Japan

To identify the reasons why Ti-Pd alloys for hydrogen storage materials show good hydrogenation properties, X-ray photoelectron spectroscopy and the Suzuki-Miyaura cross-coupling reaction were used to investigate a small amount of Pd added Ti-Pd alloys. Pd in or on Ti oxide films is in a valence state of 0 (Pd0). Catalytic activity was shown by Pd0 in the Suzuki-Miyaura cross-coupling reaction. Therefore, the enhanced hydrogenation properties of Ti-Pd alloys for hydrogen storage materials is due to Pd0’s catalytic activity in dissociating hydrogen molecules. In addition, the potential catalytic activity of Ti-Pd alloys was shown to be based on a Pd catalyst.

Ti-Pd alloy, Pd catalyst, cross-coupling reaction

Received: July 17, 2018
Accepted: September 28, 2018 , Published online: November 25, 2018
The Japan Institute of Metals and Materials



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