The valence band structure of AgxRh1-x alloy nanoparticles

Anli Yang, Osami Sakata, Kohei Kusada, Tomoe Yayama, Hideki Yoshikawa, Takayoshi Ishimoto, Michihisa Koyama, Hirokazu Kobayashi, Hiroshi Kitagawa

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The valence band (VB) structures of face-centered-cubic Ag-Rh alloy nanoparticles (NPs), which are known to have excellent hydrogen-storage properties, were investigated using bulk-sensitive hard x-ray photoelectron spectroscopy. The observed VB spectra profiles of the Ag-Rh alloy NPs do not resemble simple linear combinations of the VB spectra of Ag and Rh NPs. The observed VB hybridization was qualitatively reproduced via a first-principles calculation. The electronic structure of the Ag0.5Rh0.5 alloy NPs near the Fermi edge was strikingly similar to that of Pd NPs, whose superior hydrogen-storage properties are well known.

Original languageEnglish
Article number153109
JournalApplied Physics Letters
Volume105
Issue number15
DOIs
Publication statusPublished - Oct 13 2014

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valence
nanoparticles
hydrogen
x ray spectroscopy
photoelectron spectroscopy
electronic structure
profiles

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Yang, A., Sakata, O., Kusada, K., Yayama, T., Yoshikawa, H., Ishimoto, T., ... Kitagawa, H. (2014). The valence band structure of AgxRh1-x alloy nanoparticles. Applied Physics Letters, 105(15), [153109]. https://doi.org/10.1063/1.4896857

The valence band structure of AgxRh1-x alloy nanoparticles. / Yang, Anli; Sakata, Osami; Kusada, Kohei; Yayama, Tomoe; Yoshikawa, Hideki; Ishimoto, Takayoshi; Koyama, Michihisa; Kobayashi, Hirokazu; Kitagawa, Hiroshi.

In: Applied Physics Letters, Vol. 105, No. 15, 153109, 13.10.2014.

Research output: Contribution to journalArticle

Yang, A, Sakata, O, Kusada, K, Yayama, T, Yoshikawa, H, Ishimoto, T, Koyama, M, Kobayashi, H & Kitagawa, H 2014, 'The valence band structure of AgxRh1-x alloy nanoparticles', Applied Physics Letters, vol. 105, no. 15, 153109. https://doi.org/10.1063/1.4896857
Yang A, Sakata O, Kusada K, Yayama T, Yoshikawa H, Ishimoto T et al. The valence band structure of AgxRh1-x alloy nanoparticles. Applied Physics Letters. 2014 Oct 13;105(15). 153109. https://doi.org/10.1063/1.4896857
Yang, Anli ; Sakata, Osami ; Kusada, Kohei ; Yayama, Tomoe ; Yoshikawa, Hideki ; Ishimoto, Takayoshi ; Koyama, Michihisa ; Kobayashi, Hirokazu ; Kitagawa, Hiroshi. / The valence band structure of AgxRh1-x alloy nanoparticles. In: Applied Physics Letters. 2014 ; Vol. 105, No. 15.
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