{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T13:11:53Z","timestamp":1778245913610,"version":"3.51.4"},"reference-count":63,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2023,7,20]],"date-time":"2023-07-20T00:00:00Z","timestamp":1689811200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002301","name":"Estonian Research Council","doi-asserted-by":"publisher","award":["PRG723"],"award-info":[{"award-number":["PRG723"]}],"id":[{"id":"10.13039\/501100002301","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002301","name":"Estonian Research Council","doi-asserted-by":"publisher","award":["PRG4"],"award-info":[{"award-number":["PRG4"]}],"id":[{"id":"10.13039\/501100002301","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002301","name":"Estonian Research Council","doi-asserted-by":"publisher","award":["PRG1509"],"award-info":[{"award-number":["PRG1509"]}],"id":[{"id":"10.13039\/501100002301","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002301","name":"Estonian Research Council","doi-asserted-by":"publisher","award":["TK141"],"award-info":[{"award-number":["TK141"]}],"id":[{"id":"10.13039\/501100002301","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002301","name":"Estonian Research Council","doi-asserted-by":"publisher","award":["TK134"],"award-info":[{"award-number":["TK134"]}],"id":[{"id":"10.13039\/501100002301","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002301","name":"Estonian Research Council","doi-asserted-by":"publisher","award":["TK143"],"award-info":[{"award-number":["TK143"]}],"id":[{"id":"10.13039\/501100002301","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008530","name":"European Regional Development Fund","doi-asserted-by":"publisher","award":["PRG723"],"award-info":[{"award-number":["PRG723"]}],"id":[{"id":"10.13039\/501100008530","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008530","name":"European Regional Development Fund","doi-asserted-by":"publisher","award":["PRG4"],"award-info":[{"award-number":["PRG4"]}],"id":[{"id":"10.13039\/501100008530","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008530","name":"European Regional Development Fund","doi-asserted-by":"publisher","award":["PRG1509"],"award-info":[{"award-number":["PRG1509"]}],"id":[{"id":"10.13039\/501100008530","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008530","name":"European Regional Development Fund","doi-asserted-by":"publisher","award":["TK141"],"award-info":[{"award-number":["TK141"]}],"id":[{"id":"10.13039\/501100008530","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008530","name":"European Regional Development Fund","doi-asserted-by":"publisher","award":["TK134"],"award-info":[{"award-number":["TK134"]}],"id":[{"id":"10.13039\/501100008530","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008530","name":"European Regional Development Fund","doi-asserted-by":"publisher","award":["TK143"],"award-info":[{"award-number":["TK143"]}],"id":[{"id":"10.13039\/501100008530","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Rechargeable zinc-air batteries (RZAB) have gained significant attention as potential energy storage devices due to their high energy density, cost-effectiveness, and to the fact that they are environmentally safe. However, the practical implementation of RZABs has been impeded by challenges such as sluggish oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), including poor cyclability. Herein, we report the preparation of cobalt- and nitrogen-doped porous carbon derived from phloroglucinol-formaldehyde polymer networks with 2-methyl imidazole and cobalt phthalocyanine as precursors for nitrogen and cobalt. The CoN-PC-2 catalyst prepared in this study exhibits commendable electrocatalytic activity for both ORR and OER, evidenced by a half-wave potential of 0.81 V and Ej=10 of 1.70 V. Moreover, the catalyst demonstrates outstanding performance in zinc-air batteries, achieving a peak power density of 158 mW cm\u22122 and displaying excellent stability during charge-discharge cycles. The findings from this study aim to provide valuable insights and guidelines for further research and the development of hierarchical micro-mesoporous carbon materials from polymer networks, facilitating their potential commercialisation and widespread deployment in energy storage applications.<\/jats:p>","DOI":"10.3390\/ma16145105","type":"journal-article","created":{"date-parts":[[2023,7,20]],"date-time":"2023-07-20T04:27:13Z","timestamp":1689827233000},"page":"5105","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Cobalt Phthalocyanine-Doped Polymer-Based Electrocatalyst for Rechargeable Zinc-Air Batteries"],"prefix":"10.3390","volume":"16","author":[{"given":"Yogesh","family":"Kumar","sequence":"first","affiliation":[{"name":"Institute of Chemistry, University of Tartu, 50411 Tartu, Estonia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2569-8703","authenticated-orcid":false,"given":"Srinu","family":"Akula","sequence":"additional","affiliation":[{"name":"Institute of Chemistry, University of Tartu, 50411 Tartu, Estonia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elo","family":"Kibena-P\u00f5ldsepp","sequence":"additional","affiliation":[{"name":"Institute of Chemistry, University of Tartu, 50411 Tartu, Estonia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maike","family":"K\u00e4\u00e4rik","sequence":"additional","affiliation":[{"name":"Institute of Chemistry, University of Tartu, 50411 Tartu, Estonia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jekaterina","family":"Kozlova","sequence":"additional","affiliation":[{"name":"Institute of Physics, University of Tartu, 50411 Tartu, Estonia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arvo","family":"Kikas","sequence":"additional","affiliation":[{"name":"Institute of Physics, University of Tartu, 50411 Tartu, Estonia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jaan","family":"Aruv\u00e4li","sequence":"additional","affiliation":[{"name":"Institute of Ecology and Earth Science, University of Tartu, 50409 Tartu, Estonia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9765-055X","authenticated-orcid":false,"given":"Vambola","family":"Kisand","sequence":"additional","affiliation":[{"name":"Institute of Physics, University of Tartu, 50411 Tartu, Estonia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jaan","family":"Leis","sequence":"additional","affiliation":[{"name":"Institute of Chemistry, University of Tartu, 50411 Tartu, Estonia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0547-0824","authenticated-orcid":false,"given":"Aile","family":"Tamm","sequence":"additional","affiliation":[{"name":"Institute of Physics, University of Tartu, 50411 Tartu, Estonia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4144-4471","authenticated-orcid":false,"given":"Kaido","family":"Tammeveski","sequence":"additional","affiliation":[{"name":"Institute of Chemistry, University of Tartu, 50411 Tartu, Estonia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,7,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"111771","DOI":"10.1016\/j.rser.2021.111771","article-title":"Rechargeable Zn-air batteries: Recent trends and future perspectives","volume":"154","author":"Leong","year":"2022","journal-title":"Renew. 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