ortho-Phenylenediamine: an effective spacer to build highly magnetic Fe3O4/Au nanocomposites.

Chemphyschem : a European journal of chemical physics and physical chemistry (2012-11-13)
Xinmei Zhao, Narayan S Hosmane, Aiguo Wu
RESUMEN

1,2-Diaminobenzene, popularly known as ortho-phenylenediamine (PDA), is found to be a prototype spacer for the deposition of gold nanoparticles on the surfaces of Fe(3)O(4) microspheres. Upon carbonization with PDA, the morphology of the product changes significantly, and the resulting nanocomposites exhibit enhanced magnetism beyond the saturation value of Fe(3)O(4). The Fe(3)O(4)/Au nanocomposites show good surface-enhanced Raman spectroscopy activity with a detection limit of 10(-15)  M.

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o-Phenylenediamine, flaked, 99.5%
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o-Phenylenediamine, tablet, 20 mg substrate per tablet
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