Influence of different N‑benzoyl derivatives of isoleucine on electrochemical properties and pseudocapacitance performance of conductive polymer electroactive film: Electrochemical and theoretical study

Three newly synthesized N‑benzoyl derivatives of isoleucine (3‑methyl 2‑[(4‑methylbenzoyl) amino] pentanoic acid (C-Me(, 2‑(benzoyl amino) 3‑methyl pentanoic acid (C-H) and 2‑[(4‑chlorobenzoyl) amino] 3‑methyl pentanoic acid (C-Cl) were synthesized via Schotten-Baumann method. Afterward, dealing wit...

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Bibliographic Details
Published in:Journal of electroanalytical chemistry (Lausanne, Switzerland) Switzerland), 2018-10, Vol.826, p.65-75
Main Authors: Kowsari, E., Ehsani, A., Assadi, S., Safari, R.
Format: Article
Language:English
Subjects:
Batteries
Capacitance
Characterization
Chemical bonds
Chemical synthesis
Conductive polymer
Conductivity
Derivatives
Electric properties
Electrochemical analysis
Electrochemical properties
Electron density
Electronic properties
Energy storage
Kinetic energy
Mathematical analysis
N‑benzoyl derivatives of isoleucine
Organic chemistry
Performance enhancement
Polyaminophenol
Polymer films
Polymers
Quantum chemistry
Supercapacitor
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Summary:Three newly synthesized N‑benzoyl derivatives of isoleucine (3‑methyl 2‑[(4‑methylbenzoyl) amino] pentanoic acid (C-Me(, 2‑(benzoyl amino) 3‑methyl pentanoic acid (C-H) and 2‑[(4‑chlorobenzoyl) amino] 3‑methyl pentanoic acid (C-Cl) were synthesized via Schotten-Baumann method. Afterward, dealing with improving electrochemical properties of the poly ortho aminophenol (POAP), we fabricated POAP/C-Me, POAP/C-H and POAP/C-Cl films through electro-polymerization of POAP by employing of N‑benzoyl derivatives of isoleucine to consider as the active electrode for SCs. Based on the electronic wave function (DFT-method), the local intramolecular the electron density and its Laplacian, corresponding to atomic electronic kinetic energy, and molecular virial forces (in the molecular planes) of the molecular system is studied in this work calculated. Analysis of these results show that the atomic-scale electronic properties are generally depend on the bonding and electronic molecular structures and electron donating group on the N‑benzoyl derivatives has main important effect rather than electron withdrawing group. Based on electrochemical analyzing of POAP/C-Me, the specific capacitance, retention capacity and cycle stability as desirable factors in electrochemical SCs, exhibited more improved performances than electron withdrawing group in POAP/C-Cl film. According to electrochemical and quantum chemical evaluation, C-Me has improvement effect on electrochemical performance of POAP/C-Me electroactive film. This study reveals that POAP/C-Me with high fractal dimension, high specific capacitance and long cycle-life is suitable for application in energy storage materials. [Display omitted] •Developing a simple and green route for synthesis of composite of conductive polymer•A comparative study was carried out on three compounds of amino acid derivative using DFT and electrochemical techniques.•Presenting a novel and efficient composite materials for electrochemical redox capacitors
ISSN:1572-6657
1873-2569
DOI:10.1016/j.jelechem.2018.08.025