Cobalt Phthalocyanine-Doped Polymer-Based Electrocatalyst for Rechargeable Zinc-Air Batteries
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...
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2023-07-01
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| author | Yogesh Kumar Srinu Akula Elo Kibena-Põldsepp Maike Käärik Jekaterina Kozlova Arvo Kikas Jaan Aruväli Vambola Kisand Jaan Leis Aile Tamm Kaido Tammeveski |
| author_facet | Yogesh Kumar Srinu Akula Elo Kibena-Põldsepp Maike Käärik Jekaterina Kozlova Arvo Kikas Jaan Aruväli Vambola Kisand Jaan Leis Aile Tamm Kaido Tammeveski |
| author_sort | Yogesh Kumar |
| collection | DOAJ |
| description | 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 <i>E</i><sub>j=10</sub> of 1.70 V. Moreover, the catalyst demonstrates outstanding performance in zinc-air batteries, achieving a peak power density of 158 mW cm<sup>−2</sup> 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. |
| first_indexed | 2024-03-11T00:52:58Z |
| format | Article |
| id | doaj.art-881d0a1ee40341d89e0fde1b1011eab8 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T00:52:58Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-881d0a1ee40341d89e0fde1b1011eab82023-11-18T20:18:05ZengMDPI AGMaterials1996-19442023-07-011614510510.3390/ma16145105Cobalt Phthalocyanine-Doped Polymer-Based Electrocatalyst for Rechargeable Zinc-Air BatteriesYogesh Kumar0Srinu Akula1Elo Kibena-Põldsepp2Maike Käärik3Jekaterina Kozlova4Arvo Kikas5Jaan Aruväli6Vambola Kisand7Jaan Leis8Aile Tamm9Kaido Tammeveski10Institute of Chemistry, University of Tartu, 50411 Tartu, EstoniaInstitute of Chemistry, University of Tartu, 50411 Tartu, EstoniaInstitute of Chemistry, University of Tartu, 50411 Tartu, EstoniaInstitute of Chemistry, University of Tartu, 50411 Tartu, EstoniaInstitute of Physics, University of Tartu, 50411 Tartu, EstoniaInstitute of Physics, University of Tartu, 50411 Tartu, EstoniaInstitute of Ecology and Earth Science, University of Tartu, 50409 Tartu, EstoniaInstitute of Physics, University of Tartu, 50411 Tartu, EstoniaInstitute of Chemistry, University of Tartu, 50411 Tartu, EstoniaInstitute of Physics, University of Tartu, 50411 Tartu, EstoniaInstitute of Chemistry, University of Tartu, 50411 Tartu, EstoniaRechargeable 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 <i>E</i><sub>j=10</sub> of 1.70 V. Moreover, the catalyst demonstrates outstanding performance in zinc-air batteries, achieving a peak power density of 158 mW cm<sup>−2</sup> 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.https://www.mdpi.com/1996-1944/16/14/5105phloroglucinol-formaldehyde networknitrogen dopingelectrocatalysisnon-precious metal catalystoxygen reduction reactionoxygen evolution reaction |
| spellingShingle | Yogesh Kumar Srinu Akula Elo Kibena-Põldsepp Maike Käärik Jekaterina Kozlova Arvo Kikas Jaan Aruväli Vambola Kisand Jaan Leis Aile Tamm Kaido Tammeveski Cobalt Phthalocyanine-Doped Polymer-Based Electrocatalyst for Rechargeable Zinc-Air Batteries Materials phloroglucinol-formaldehyde network nitrogen doping electrocatalysis non-precious metal catalyst oxygen reduction reaction oxygen evolution reaction |
| title | Cobalt Phthalocyanine-Doped Polymer-Based Electrocatalyst for Rechargeable Zinc-Air Batteries |
| title_full | Cobalt Phthalocyanine-Doped Polymer-Based Electrocatalyst for Rechargeable Zinc-Air Batteries |
| title_fullStr | Cobalt Phthalocyanine-Doped Polymer-Based Electrocatalyst for Rechargeable Zinc-Air Batteries |
| title_full_unstemmed | Cobalt Phthalocyanine-Doped Polymer-Based Electrocatalyst for Rechargeable Zinc-Air Batteries |
| title_short | Cobalt Phthalocyanine-Doped Polymer-Based Electrocatalyst for Rechargeable Zinc-Air Batteries |
| title_sort | cobalt phthalocyanine doped polymer based electrocatalyst for rechargeable zinc air batteries |
| topic | phloroglucinol-formaldehyde network nitrogen doping electrocatalysis non-precious metal catalyst oxygen reduction reaction oxygen evolution reaction |
| url | https://www.mdpi.com/1996-1944/16/14/5105 |
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