Investigations of polyaniline–platinum composites prepared by sodium borohydride reduction

Thermal degradation mechanism of dodecylbenzene sulfonic acid- hydrochloric acid co-doped polyaniline

“…The band at 1374 cm À1 is attributed to a C-N stretching in the neighborhood of a quinonoid ring and it is typical of the PANI base [2]. The absorption band at 1297 cm À1 corresponds to p electron delocalization induced in the polymer by protonation or C-N-C stretching vibration [23][24][25]. The band observed at 1240 cm À1 is the characteristic of C-N þ stretching vibration in the polaron structure [14,[23][24][25].…”

“…The absorption band at 1297 cm À1 corresponds to p electron delocalization induced in the polymer by protonation or C-N-C stretching vibration [23][24][25]. The band observed at 1240 cm À1 is the characteristic of C-N þ stretching vibration in the polaron structure [14,[23][24][25]. The 1085 cm À1 band is an evidence of the vibration mode of the -NH þ ], which is formed during protonation [14,[25][26][27].…”

“…The band observed at 1240 cm À1 is the characteristic of C-N þ stretching vibration in the polaron structure [14,[23][24][25]. The 1085 cm À1 band is an evidence of the vibration mode of the -NH þ ], which is formed during protonation [14,[25][26][27]. Three distinct peaks at 1047, 1000 and 699 cm À1 are assigned to the stretching of S]O bond of DBSA [16,17].…”

Polyaniline-Pt and polypyrrole-Pt nanocomposites: Effect of supporting type and morphology on the nanoparticles size and distribution

“…For the synthesis of the conducting polymers-based nanocomposites, Pt nanoparticles were obtained by reducing Pt +4 ions from PtCl 4 precursor in an aqueous solution according to the method described elsewhere [21]. It was used 0.2 mol of Pt per 1.0 mol of PANI mer and 1.0 mol of PPy mer.…”

“…The formation of platinum nanoparticles was obtained by reducing the K 2 PtCl 4 salt in the presence of formic acid [20]. The use of reducing agents has also been reported by Nyczyk et al [21] to obtain PANI-Pt nanocomposites in the presence of sodium borohydride (NaBH 4 ) and having PtCl 4 salt as metal precursor. This synthesis route resulted in well-dispersed platinum nanoparticles.…”