Synthesis of nanocomposite Pd balls and wires by chemical vapor infiltration

K. B. Lee, C. S. Choi, S. J. Oh, H. C. Ri, J. Cheon

Research output: Contribution to journalConference article

Abstract

Our study presents the preparation of well-defined Pd nanoballs and nanowires using the different pore size of cubic and hexagonal shaped MCM type mesoporous silicate materials as matrix templates. The synthesis involves loading the organometallic precursor into template matrix via chemical vapor infiltration (CVI), followed by mild thermal decomposition to generate Pd metals self-organized inside the template. For Pd@MCM-48, the Pd metal forms spherical domains (∼38 nm) consisting of three dimensionally interconnected into Pd arrays; for Pd@SBA-15 and Pd@MCM-41, the Pd metal forms of one-dimensional wires. Etching out the matrix produces porous Pd nanoballs (pore sizes of ∼1.5 - 2.0 nm) with retaining original domain sizes of ∼38 nm; similarly Pd@SBA-15 and Pd@MCM-41 afford freestanding Pd nanowires. In addition, phase transition behavior and melting point depression of the Pd nanowires is studied.

Original languageEnglish
Pages (from-to)Pr3481-Pr3486
JournalJournal De Physique. IV : JP
Volume11
Issue number3
Publication statusPublished - 2001 Jan 1
Event13th European Conference on Chemical Vapor Deposition (EUROCVD 13) - Athens, Greece
Duration: 2001 Aug 262001 Aug 31

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Synthesis of nanocomposite Pd balls and wires by chemical vapor infiltration'. Together they form a unique fingerprint.

  • Cite this

    Lee, K. B., Choi, C. S., Oh, S. J., Ri, H. C., & Cheon, J. (2001). Synthesis of nanocomposite Pd balls and wires by chemical vapor infiltration. Journal De Physique. IV : JP, 11(3), Pr3481-Pr3486.