Structural studies of metal nanoparticles using high-energy x-ray diffraction

Journal Article · Wed Jul 27 00:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4952936· OSTI ID:22608441

Kumara, L. S. R.,; Yang, Anli; Song, Chulho ^[1]; Sakata, Osami ^[1]; Kohara, Shinji ^[1]; Kusada, Kohei; Kobayashi, Hirokazu ^[2]; Kitagawa, Hiroshi ^[2]

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1. Synchrotron X-ray Station at SPring-8, National Institute for Materials Science (NIMS) 1-1-1 Kouto, Sayo, Hyogo, 679-5148 (Japan)
2. Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502 Japan (Japan)

The XRD patterns of nanoparticles exhibit broad Bragg peaks because of small size, where the contribution of diffuse component provides us with inherent structural information. Therefore, pair distribution function obtained from a Fourier transformation of high-energy XRD data and structure modeling on the basis of diffraction data becomes an essential tool to understand the structure of nanoparticles. This promising tool was utilized to obtain structural information of Pd/Pt bimetallic core/shell and solid-solution nanoparticles, which show much attention due to their improved hydrogen storage capacity and catalytic activity.

• OSTI ID: 22608441
• Journal Information: AIP Conference Proceedings, Vol. 1741, Issue 1; Conference: SRI2015: 12. international conference on synchrotron radiation instrumentation, New York, NY (United States), 6-10 Jul 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
BRAGG CURVE
DISTRIBUTION
DISTRIBUTION FUNCTIONS
FOURIER TRANSFORMATION
HYDROGEN STORAGE
METALS
NANOPARTICLES
SIMULATION
SOLID SOLUTIONS
SOLIDS
X RADIATION
X-RAY DIFFRACTION