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Copper Hexacyanoferrate Formation on the Modified Silica Surface with DAB‐Am‐16 Dendrimer
Author(s) -
Carmo Devaney R. do,
Gabriel Suelino,
Bicalho Urquisa O.,
Picon Carlos A.,
Paim Leonardo L.
Publication year - 2011
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200900097
Subject(s) - copper , cyclic voltammetry , dendrimer , ferrocyanide , silica gel , fourier transform infrared spectroscopy , voltammetry , nuclear chemistry , chemistry , inorganic chemistry , ferrocene , materials science , electrode , polymer chemistry , electrochemistry , chemical engineering , organic chemistry , engineering
The third generation (G‐3) polypropylenimine hexadecaamine dendrimer (DAB‐Am‐16) was grafted onto the silica gel surface. The modified silica interacts easily with Cu 2+ and then with potassium ferrocyanide to form copper hexacyanoferrate. The modified silica was characterized by the following techniques: Nuclear Magnetic Resonance (NMR), FTIR spectroscopy, Energy Dispersive X‐ray (EDX) and Cyclic Voltammetry. The modified silica containing copper hexacyanoferrate (CuHCFSD) was tested for a voltammetric determination of nitrite using a modified graphite paste electrode.