Synthesis and characterization of silver hexacyanoferrate (II)/ poly aniline composites

Silver hexacyanoferrate(II)/conducting poly aniline composite was synthesized in two steps process; In the first step, silver hexacyanoferrate(III) was synthesized by reaction of K/sub 3/[Fe(CN)/sub 6/ and AgNO/sub 3/ solutions In the second step, silver hexacyanoferrate(III) was reacted with aniline/HNO/sub 3/ solution Silver hexacyanoferrate(III) acted as an oxidant to polymerize aniline monomer Silver hexacyanoferrate(II)/conducting poly aniline composite was prepared at different temperatures (37 degree C, 27 degree C, 17 degree C) and in different concentrations of AgNO/sub 3/ (0.4M, 0.8M, 1.2M) and HNO/sub 3/ (1M and 2M) Silver hexacyanoferrate(II)/conducting poly aniline composite was characterized by FTIR and DC conductivity was measured by four probe technique Conductivity of Silver hexacyanoferrate(II)/poly aniline composite was found to be increased with increasing temperature However, conductivity decreased significantly with increasing concentrations of AgNO/sub 3/ but remained unaffected with the change in HNO, concentration from 1-2 molar. (author)