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At \u20131.19\u2009V versus normal hydrogen electrode, the ECO\n                    <jats:sub>2<\/jats:sub>\n                    R under catalysis of the target polymer effectively produces CO with 94% faradaic efficiency (FE\n                    <jats:sub>CO<\/jats:sub>\n                    ), CO partial current density of 5.5\u2009mA\u2009cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    , and turnover frequency of 1.1\u2009s\n                    <jats:sup>\u22121<\/jats:sup>\n                    over 2\u2009h. Moreover, the polymeric system exhibits remarkably higher stability than the monomeric one by achieving average FE\n                    <jats:sub>CO<\/jats:sub>\n                    , current density and a turnover number of up to 93%, 7\u2009mA\u2009cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    and 5.3\u2009\u00d7\u200910\n                    <jats:sup>5<\/jats:sup>\n                    , respectively, along 120\u2010h electrolysis. Variable\u2010frequency square wave voltammetry indicates efficient electron transfer within polymeric bulk through the PNZ linkage, while in situ Raman spectroscopy reveals a higher proportion of electrochemically active Co\n                    <jats:sup>I<\/jats:sup>\n                    species in the polymer film than the monomer one. In addition, density functional theory calculations using the real\u2010space GPAW framework are conducted to investigate charge penetration in the extended \u03c0\u2010conjugated polymer network in comparison to that in the monomeric counterpart. These findings provide valuable insights for the rational design of the robust Co\n                    <jats:sup>II<\/jats:sup>\n                    \u2010phthalocyanine\u2010based catalyst and contribute to the progress of an efficient CO\n                    <jats:sub>2<\/jats:sub>\n                    \u2010to\u2010CO conversion.\n                  <\/jats:p>","DOI":"10.1002\/cssc.202501266","type":"journal-article","created":{"date-parts":[[2025,8,25]],"date-time":"2025-08-25T11:15:54Z","timestamp":1756120554000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Redox\u2010Conjugated Co\n                    <sup>II<\/sup>\n                    \u2010Phthalocyanine\u2013Phenazine Polymer as a Robust Catalyst for Efficient Electrochemical CO\n                    <sub>2<\/sub>\n                    Conversion"],"prefix":"10.1002","volume":"18","author":[{"given":"Permsak","family":"Chairat","sequence":"first","affiliation":[{"name":"Department of Chemistry Faculty of Science Chulalongkorn University  Bangkok 10330 Thailand"},{"name":"School of Engineering Macquarie University  Sydney NSW 2109 Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jirapong","family":"Luangchaiyaporn","sequence":"additional","affiliation":[{"name":"Department of Chemistry Faculty of Science Chulalongkorn University  Bangkok 10330 Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alena S.","family":"Kochubei","sequence":"additional","affiliation":[{"name":"School of Engineering Macquarie University  Sydney NSW 2109 Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aleksei N.","family":"Marianov","sequence":"additional","affiliation":[{"name":"School of Engineering Macquarie University  Sydney NSW 2109 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