Facile Synthesis and Electromagnetic Interference Shielding Performance of Pani-Decorated Tetraamino Metal Phthalocyanine Nanocomposites and their Electrochemical Sensing of L-Cysteine
Year: 2026
Type: article
Abstract: This paper describes the synthesis of tetraamino metal phthalocyanine (TAMPc) ingrained polyaniline (PANI) and their characterization by spectroscopic techniques. Additionally, this work presents the electromagnetic interference (EMI) shielding performance of polyaniline doped tetra amino metal phthalocyanine (PANI-TAMPc) and the electrochemical detection of L-Cysteine. The spectroscopic characterization of the synthesized PANI-TAMPcs was performed using XRD, FTIR, SEM, TGA, and UV-Vis techniques. The variation in the dielectric constant and conductivity of PANI-TAMPc nanocomposites with frequency was undertaken in the frequency range 40 Hz-5 MHz using an impedance analyzer. Additionally, the Electromagnetic Interference Shielding performance of hybrid PANI-TAMPcs was studied using a Vector Network Analyzer. PANI-TACo(II)Pc is highly efficient among PANI-TAMPc nanocomposites, with an adequate total EMI shielding effectiveness (SET) of 40dB in the X-band, due to the increase in surface area and heterogeneous phase components in their moieties. Also, the PANI-TACo(II)Pc/GC electrode exhibits good sensing performance for L-cysteine and shows a very good analytical profile, including a long linear range, sensitivity, and detection limit of 0.5-3.5 µM, 0.1198 µA/µM, and 0.166 µM, respectively. Also, this sensor shows repeatability and stability without any leaching property. Therefore, our study suggests that PANI-TACo(II)Pc can be a good choice as an excellent EMI shielding material for EMI applications and for sensing L-cysteine.
Institutions: Kuvempu University, Adichunchanagiri University
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7203481601