A New Porous Polymer for Highly Efficient Capacitive Energy Storage

Abstract

The new porous polymer TPDA-1 has been synthesized via solvothermal Schiff base condensation reaction between two organic monomers, i.e., 2,4,6-trihydroxyisophthalaldehyde and 1,3,5-tris(4-aminophenyl)triazine. The TPDA-1 material showed a very high specific capacitance of 469.4 F g −1 , at 2 mV s −1 scan rate, together with a high specific surface area of 545 m 2 g −1 . It also exhibited excellent cyclic stability with 95% retention of its initial specific capacitance after 1000 cycles at 5 A g −1 , suggesting its potential as a high performance supercapacitor. Extended π-conjugation and ion conduction inside the micropores throughout the whole polymeric matrix and high BET surface area could be responsible for this high supercapacitor performance in energy storage device. TPDA-1 has been characterized thoroughly by various electrochemical techniques such as cyclic voltammetry, galvanic charge−discharge, and electrochemical impedance spectroscopy. Our experimental results suggested a high potential of this porous polymer in energy storage devices for future generation.

Meso/Microporous Carbons from Conjugated Hyper-Crosslinked Polymers Based on Tetraphenylethene for High-Performance CO2 Capture and Supercapacitor

“…Ultra-capacitors or electric double layer capacitors (also called supercapacitors) are energy storage devices that possess long cycle life, low maintenance, low internal resistance, light weight, delivering high energy and high efficiency, high power, flexible packaging, light weight and maintenance, and a wide range of temperature compared with other energy devices such as batteries [ 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ]. Based on the supercapacitors mechanism for energy storage, supercapacitors can be divided into electrical double layer capacitor (EDLC), hybrid capacitor, and finally pseudocapacitor [ 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 ]. Hyper-crosslinked polymers (HCPs) [ 28 , 29 , 30 , 31 , 32 , 33 ], covalent organic frameworks (COF) [ 34 , 35 , 36 , 37 , 38 , 39 , 40 ], conjugated microporous polymers (CMPs) [ 41 , 42 , 43 , 44 , 45 ], and polymers of intrinsic microporosity (PIMs) are considered as types of microporous organic polymers (MOPs) [ 46 , 47 , 48 , 49 ].…”

Generation of Strong Basic Site on Hypercrosslinked Porous Polymers as Catalyst for the Catalytic Oxidation of Methylene Compounds

“…For HCP‐1 (Figure A), resonance peak near 139 ppm are attributed to vinyl carbon, for K‐HCP‐1, three new resonance peaks 168 ppm, 183 ppm and 191 ppm appeared, which ascribed to O−C=O, C=O respectively, indicating that vinyl is oxidized to aldehyde and carboxyl groups. For HCP‐2 (Figure B), resonance peak near 191 ppm is attributed to C=O, as for K‐HCP‐2, the response peaks of carboxyl group (168 ppm, 183 ppm) were enhanced meanwhile group is partly oxidized into carboxyl group except for CO 2 during the reduction of KNO 3 to basic species.…”

Covalent Organic Frameworks: A New Class of Porous Organic Frameworks for Supercapacitor Electrodes

“…Bhanja et al prepared a new porous polymer (TPDA-1) by condensing 2,4,6-trihydroxyisophthalaldehyde (PDA) and 1,3,5tris(4-aminophenyl) triazine (TAPT-1) via solvothermal Schiff reaction. [74] The TPDA-1 material possessed a big specific surface area of 545 m 2 · g À 1 , together with an excellent specific capacitance of 469.4 F · g À 1 at the scan rate of 2 mV · s À 1 . Meanwhile, TPDA-1 displayed the good cycling stability, and the capacitance retention was 75 % at the current density of 5 A · g À 1 after 1000 charge discharge cycles.…”

“…Bhanja et al. prepared a new porous polymer (TPDA‐1) by condensing 2,4,6‐trihydroxyisophthalaldehyde (PDA) and 1,3,5‐tris(4‐aminophenyl) triazine (TAPT‐1) via solvothermal Schiff reaction . The TPDA‐1 material possessed a big specific surface area of 545 m 2 ⋅ g −1 , together with an excellent specific capacitance of 469.4 F ⋅ g −1 at the scan rate of 2 mV ⋅ s −1 .…”