Abstract
Schiff base polymers having two different structures are synthesized by condensation polymerization using 4,4′-diamino diphenylamine sulfate hydrate with terephthalaldehyde and 2,4,6-Tris(p-formylphenoxy)-1,3,5-triazine (TRIPOD), named as COP-1 and COP-2. Nature of structural arrangement is studied using FT-IR and powder XRD techniques. The thermal stability of polymers is up to 250 °C, confirmed by TGA. SEM analysis of COP-1and COP-2 shows flaky, leaf veins and sheet like morphology. The calculated maximum areal capacitance values for both the COP-1 and COP-2, are 695 mF/cm2 and 771 mF/cm2 respectively at the applied current density of 1 mA cm−2. COP-2 has shown higher capacitance than COP-1 due to high content of nitrogen present in the polymer. The polymer coated nickel foam electrode exhibits substantial cyclic stability up to 1000 cycles, carried out at 20 mA cm−2.
Original language | English |
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Article number | 132348 |
Journal | Materials Letters |
Volume | 320 |
DOIs | |
State | Published - 1 Aug 2022 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2022 Elsevier B.V.
Funding
The authors thank Department of Science and Technology (DST-INSPIRE) [Project number ? IFA14/CH-147], India and RUSA 2.0 (MHRD, India) Letter No. F. 24-51/2014-U, Policy (TNMulti-Gen), Govt. of India, for their financial support.
Funders | Funder number |
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DST-INSPIRE | IFA14/CH-147 |
TNMulti-Gen | |
Department of Science and Technology, Ministry of Science and Technology, India | |
Ministry of Education, India | 24-51/2014-U |
Keywords
- Areal capacitance
- Cyclic stability
- Pseudocapacitor
- Schiff base
- Supercapacitor