Synthesis and characterization of Ppy and Ppy/zeolite and their use as adsorbents in removal of diclofenac sodium

Flexible Hierarchical Polyimide/Polypyrrole/Carbon Nanofiber Composite Films for Tunable Electromagnetic Interference Shielding

“…A broad peak is observed at 2θ = 21.8°, which is the characteristic of amorphous PPy and is caused by the scattering of PPy chains on the plane spacing. 30,31 For CF, CP-1, CP-4, and CPI-1 samples, an amorphous diffraction peak was detected near 2θ = 24.8°, which is due to the (002) crystal plane of the fibrous graphite structure, indicating a complex mixture of the crystalline graphite phase and amorphous carbon matrix of CF. 32 After compounding with CF, the low-intensity diffraction absorption peaks of CP-1, CP-4, and CPI-1 were detected at 2θ = 35.3°.…”

Preparation and properties of polypyrrole-modified carbon black supported Pt3Cu alloy catalyst

“…The peak at 1615 cm −1 is the CC in-plane stretching vibration of the pyrrole ring, that at 1375 cm −1 is the C–N stretching vibration of the pyrrole ring and the C–H in-plane stretching vibration, that at 1155 cm −1 is the N–H in-plane deformation vibration, and that at 845 cm −1 is the pyrrole ring C–H in-plane deformation vibration. 29 After modification to C@PPy, the characteristic peak moves along the direction of low wave number, which is due to the hydrogen bonds formed by the combination of N in the PPy molecular chain and H in C to enhance the conjugation of its complex. This change also indicates that PPy has been successfully introduced into the C surface.…”