Supported superparamagnetic Pd/Co alloy nanoparticles prepared from a silica/cyanogel Co-gel

Martina Vondrova, Tomasz Klimczuk, V. L. Miller, Brent W. Kirby, Nan Yao, Robert Joseph Cava, Andrew Bruce Bocarsly

Research output: Contribution to journalReview articlepeer-review

30 Scopus citations

Abstract

Potential applications of superparamagnetic materials in magnetic storage and recording and magnetic manipulations in biological systems are discussed. A co-gel of silica and a Pd/Co cynaogel coordination polymer is prepared and on heating at 600°C, the material changes into a silica composite with embedded Pd/Co alloy nanoparticles. The X-ray powder diffraction (XRD) pattern of the thermally reduced Pd/Co on silica showed (111), (200), and (220) peaks slightly shifted towards angles from the position of (111), (200) and (220) peaks in pure Pd, indicating that Co is included in the Pd lattice. It is stated that the method can be further used in preparing a wide variety of supported transition metal alloy nanoparticles.

Original languageEnglish (US)
Pages (from-to)6216-6218
Number of pages3
JournalChemistry of Materials
Volume17
Issue number25
DOIs
StatePublished - Dec 13 2005

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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