
504 CHAPTER 17 Smart precursors for smart nanoparticles
17.12 MISCELLANEOUS TECHNIQUES [282,283]
The following techniques were used for determining the sizes, shapes, and structural
properties in nanoparticles, in bulk or within a matrix.
Electron paramagnetic (spin) resonance and NMR give information on the elec-
tronic structure. Mössbauer spectroscopy, i.e., the resonance absorption of gamma
quanta by atomic nuclei in solids, is actively used for gaining insight into the internal
structure of an element. The energy of gamma quantum is small (~150 keV), and its
absorption excites a nucleus. The resonance condition is the equality of the nucleus ...