Powder XRD and solid-state2H-NMR studies on RAP-protected palladium nanoparticle (RAP = Rubeanic-Acid Polymer)

M. Fujishima, M. Yamauchi, R. Ikeda, T. Kubo, K. Nakasuji, H. Kitagawa

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


This study reports hydrogen absorption property of newly-synthesized RAP (rubeanic-acid polymer)-protected palladium nanoparticle (RAP-Pd). From powder X-ray diffraction measurements, the lattice constant of Pd nanoparticle was revealed to increase by 0.11 Å under 600 Torr hydrogen gas condition at room temperature, indicating that the hydrogen absorption occurs in the Pd nanoparticle. Solid-state 2H-NMR spectrum under deuterium gas showed that three different components exist in RAP-Pd, which are derived from imino group, terminal amino group in the RAP and absorbed deuterium atom inside the Pd nanoparticle. This result gives an expectation of the hydrogen absorption in RAP itself.

Original languageEnglish
Pages (from-to)107-110
Number of pages4
JournalSolid State Phenomena
Publication statusPublished - 2006 Jan 1
Externally publishedYes
EventSymposium S Science and Technology of Hybrid Materials - ICMAT 2005: 3rd International Conference on Materials for Advanced Technologies; IUMRS-ICAM 2005: International Union of Materials Research Societies-9th International Conference on Advanced M - Singapore, Singapore
Duration: 2005 Jul 32005 Jul 8


  • Hydrogen absorption
  • Polymer-protected metal nanoparticle

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics


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