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This study reports the facile synthesis of porphyrin\u2010based covalent organic polymers (PTZ\u2010COP, CBZ\u2010COP, and TPA\u2010COP) through a one\u2010pot aromatic electrophilic polycondensation reaction between pyrrole and monomeric aldehydes (PTZ\u2010CHO, CBZ\u2010CHO and TPA\u2010CHO). To enhance conductivity, these covalent organic polymers (COPs) were noncovalently wrapped on multiwall carbon nanotubes (MWCNTs), forming MWCNT@PTZ\u2010COP, MWCNT@CBZ\u2010COP and MWCNT@TPA\u2010COP. Among all, phenothiazine\u2010based COPs wrapped on MWCNT\n                    <jats:italic>viz<\/jats:italic>\n                    . MWCNT@PTZ\u2010COP stands out, exhibiting notable surface area and redox\u2010active moieties with high heteroatom (N, S) contents in the framework. These properties contribute to its superior performance in the form of an electrochemical double\u2010layer capacitor (EDLC) and pseudocapacitor. In the three\u2010electrode, the MWCNT@PTZ\u2010COP achieves a wider ESPW of 2.2 V, demonstrates a remarkable specific capacitance of 292.7 F g\n                    <jats:sup>\u22121<\/jats:sup>\n                    along with an energy density 196.8 Wh kg\n                    <jats:sup>\u22121<\/jats:sup>\n                    and power density of 752 W kg\n                    <jats:sup>\u22121<\/jats:sup>\n                    , at a current density of 0.7 A g\n                    <jats:sup>\u22121<\/jats:sup>\n                    in 5\n                    <jats:sc>m<\/jats:sc>\n                    NaClO\n                    <jats:sub>4<\/jats:sub>\n                    . As\u2010designed symmetric supercapacitor cell of MWCNT@PTZ\u2010COP demonstrates an impressive specific capacitance of 55.5 F g\n                    <jats:sup>\u22121<\/jats:sup>\n                    and energy density 37.3 Wh kg\n                    <jats:sup>\u22121<\/jats:sup>\n                    , respectively. Additionally, it exhibits a high areal capacitance of 46.4 mF cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    in 5\n                    <jats:sc>m<\/jats:sc>\n                    NaClO\n                    <jats:sub>4<\/jats:sub>\n                    . Moreover, it exhibits outstanding 100% capacitance retention after running 20\u00a0000 GCD cycles at 3.2 A\u00a0g\n                    <jats:sup>\u22121<\/jats:sup>\n                    . This system demonstrates the highest cell voltage for a porphyrin\u2010based COPs aqueous symmetric supercapacitor with a high energy density and stability.\n                  <\/jats:p>","DOI":"10.1002\/smll.202409580","type":"journal-article","created":{"date-parts":[[2025,1,2]],"date-time":"2025-01-02T03:54:21Z","timestamp":1735790061000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Porphyrin\u2010Based Covalent Organic Polymer Wrapped MWCNT Electrodes under Moderate Salt Concentration for Super\u2010Stable Aqueous Sodium\u2010Ion Intercalated Sustainable Supercapacitor"],"prefix":"10.1002","volume":"21","author":[{"given":"Mohammad","family":"Tasleem","sequence":"first","affiliation":[{"name":"Centre for Nanotechnology Indian Institute of Technology Roorkee  Roorkee 247667 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