TITLE

Thermal decomposition of surfactant coatings on Co and Ni nanocrystals

AUTHOR(S)
Pérez-Dieste, V.; Castellini, O.M.; Crain, J.N.; Eriksson, M.A.; Kirakosian, A.; Lin, J.-L.; McChesney, J.L.; Himpsel, F.J.; Black, C.T.; Murray, C.B.
PUB. DATE
December 2003
SOURCE
Applied Physics Letters;12/15/2003, Vol. 83 Issue 24, p5053
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The pathway for thermal decomposition of an oleic acid surfactant protecting Co and Ni nanocrystals is identified by probing the relevant molecular orbitals with x-ray absorption spectroscopy. The two steps observed previously in thermogravimetric measurements are identified with thermal desorption of entire molecules at ≈200 °C and dehydrogenation at ≈400 °C, which leaves a graphitic surface with alkane fragments underneath. © 2003 American Institute of Physics.
ACCESSION #
11649640

 

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