Carbon Materials Derived from Poly(aniline-co-p-phenylenediamine) Cryogels

Abstract

Nitrogen-containing carbon derivatives were prepared by the carbonization of poly(aniline-co-p-phenylenediamine) cryogels in inert atmosphere. Lower aniline fraction in the comonomer mixture used for preparation of the cryogels led to the decrease of their thermal stability, a consequent increase of carbonization degree, and less defective structure of carbonized materials. The resulting carbonaceous products had up to 4 orders of magnitude higher specific surface area than their respective cryogel precursors, the highest value 931 m 2 g −1 being achieved for carbonized poly(p-phenylenediamine) cryogel. Electrochemical characterization of the carbon derivatives demonstrated that the decrease in aniline concentration during the synthesis of the precursor cryogels led to higher gravimetric capacitance for corresponding carbonized materials. These materials can potentially be used for energy storage applications.

Transforming Waste Poly(Ethylene Terephthalate) into Nitrogen Doped Carbon Nanotubes and Its Utility in Oxygen Reduction Reaction and Bisphenol-A Removal from Contaminated Water

“…Agro-based precursors such as sucrose [5], glucose [6], fructose [7], common sugar [8], ligno-cellulosic biomasses like bio-refinery residue [9], furfural manufacture waste [10], tamarind wood [11], willow bark [12], olive pomace [13], etc. Besides there are reports on carbonization of polymeric materials such as polypyrrole [14], polymer blends like poly(acrylonitrile)/poly(vinylidene Fluoride) [15] and co-polymers like poly(aniline-co-p-phenylenediamine) [16], etc. have been converted to carbons and used in applications such as adsorbents for environmental remediation [17], secondary batteries such as lithium-and sodium-ion batteries, etc.…”