Carbonized Aminal-Linked Porous Organic Polymers Containing Pyrene and Triazine Units for Gas Uptake and Energy Storage

Abstract

Porous organic polymers (POPs) have plenteous exciting features due to their attractive combination of microporosity with π-conjugation. Nevertheless, electrodes based on their pristine forms suffer from severe poverty of electrical conductivity, precluding their employment within electrochemical appliances. The electrical conductivity of POPs may be significantly improved and their porosity properties could be further customized by direct carbonization. In this study, we successfully prepared a microporous carbon material (Py-PDT POP-600) by the carbonization of Py-PDT POP, which was designed using a condensation reaction between 6,6′-(1,4-phenylene)bis(1,3,5-triazine-2,4-diamine) (PDA-4NH2) and 4,4′,4′′,4′′′-(pyrene-1,3,6,8-tetrayl)tetrabenzaldehyde (Py-Ph-4CHO) in the presence of dimethyl sulfoxide (DMSO) as a solvent. The obtained Py-PDT POP-600 with a high nitrogen content had a high surface area (up to 314 m2 g−1), high pore volume, and good thermal stability based on N2 adsorption/desorption data and a thermogravimetric analysis (TGA). Owing to the good surface area, the as-prepared Py-PDT POP-600 showed excellent performance in CO2 uptake (2.7 mmol g−1 at 298 K) and a high specific capacitance of 550 F g−1 at 0.5 A g−1 compared with the pristine Py-PDT POP (0.24 mmol g−1 and 28 F g−1).

Construction of N-Rich Aminal-Linked Porous Organic Polymers for Outstanding Precombustion CO2 Capture and H2 Purification: A Combined Experimental and Theoretical Study

“…The full-range XPS spectra of TBAL-POP-1 and 2 are shown in Figures S10a,b (Supplementary Note 10 in ESI), respectively. These spectra suggest the existence of C 1s, N 1s, and O 1s bands. − …”

Thermal Stable and Flexible Bio‐Based Polybenzoxazine with Epoxy‐Functionalized Poly(dimethylsiloxane) Hybrids

“…[43][44] Figure 6c displays the mechanism of generation of triazine rings through the thermal reaction of cyano groups and thermal cracking produces at high temperatures. [45][46][47] Figure 6d displays TGA analyses comparing PDMS-epoxy/PDA and PDMS-epoxy/VAnBZ-CN hybrids after thermal curing polymerization at 240 °C, followed by exposure to 400 °C for various durations. The results clearly demonstrated that the incorporation of VAnBZ-CN monomer in the PDMSepoxy resin significantly enhanced the thermal stability of these hybrids.…”

Rational Design of Ultrastable Conjugated Microporous Polymers Based on Pyrene and Perylene Units as High-Performance Organic Electrode Materials for Supercapacitor Applications

“…Py (2.0 g, 9.6 mmol) was added to a 500 mL round-bottom flask containing nitrobenzene (80 mL). 20 The mixture was continuously stirred using a magnetic stirrer for 4 h at a temperature of 120 °C. The solution was allowed to cool once the reaction was finished.…”

“…They find applications in various electronic devices, memory backup systems, and electric vehicles . SCs can be divided into two categories: electric double-layer capacitors (EDLCs) and pseudo-capacitors, based on different charge storage processes. ,− Among these, EDLCs, known for their exceptionally long cycle lifetimes, high power densities, low maintenance costs, and environmentally friendly compositions, are widely used as energy storage devices. ,− Overall, SCs, particularly EDLCs, are highly favored energy storage solutions due to their remarkable characteristics and wide range of applications. In the field of SCs, the commonly used electrode materials include metal oxides and hydroxides, porous carbon materials, and conductive polymers .…”