ISSN:
1573-4846
Keywords:
redox reactions
;
electron transfer
;
transition metal oxides
;
inorganic precursors
;
electronic properties
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Transition metal ions are known to exhibit several oxidation states so that redox reactions can take place during the sol-gel synthesis of the corresponding oxides. The reduction of molecular precursors increases the size of the metal cation, favoring coordination expansion and the formation of condensed species. Electron delocalization through the oxide network is responsible for the electrical, optical, and electrochemical properties of transition metal oxide gels. Moreover the large surface/volume ratio — due to the small size of the solid particles — leads to a whole range of ion and electron exchange reactions at the oxide/water interface of transition metal oxide colloids.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00486426
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