{"title":"ZIF-8 Template-Assisted Synthesis of Polyimide-Derived Nitrogen-Oxygen Co-doped Porous Carbon Microspheres for Supercapacitors","authors":"Xin Zhou, Juan Yu, Pei Huang, Xiaodong Wang","doi":"10.1134/s1560090424600402","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Nitrogen-oxygen co-doped porous carbon microspheres were synthesized through hydrothermal and carbonization processes using polyimide (PI) as the carbon precursor and a nitrogen-oxygen source. ZIF-8 was also used as the template. When the carbonization temperature reached 800°C, the porous carbon microspheres displayed a unique 3D sea urchin-like morphology, a high specific surface area (782.3 m<sup>2</sup>/g), and good nitrogen and oxygen doping contents (6.62 and 11.92 at %, respectively). Electrochemical testing showed that when the scanning rate was 0.5 A/g, the material achieved a specific capacitance of 330.5 F/g, and the capacitance retention rate of the electrode material was 73.5% when the current density reached 10 A/g. Furthermore, the symmetrical supercapacitor assembled with this electrode had an operating voltage window that extended to 1.8 V and provided an energy density of 20.5 W h/kg at a power density of 400 W/kg. This method of preparing high performance nitrogen-oxygen co-doped carbon electrode materials provides an idea for the application of insulating polymers in the field of energy storage.</p>","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polymer Science, Series B","FirstCategoryId":"1","ListUrlMain":"https://doi.org/10.1134/s1560090424600402","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
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Abstract
Nitrogen-oxygen co-doped porous carbon microspheres were synthesized through hydrothermal and carbonization processes using polyimide (PI) as the carbon precursor and a nitrogen-oxygen source. ZIF-8 was also used as the template. When the carbonization temperature reached 800°C, the porous carbon microspheres displayed a unique 3D sea urchin-like morphology, a high specific surface area (782.3 m2/g), and good nitrogen and oxygen doping contents (6.62 and 11.92 at %, respectively). Electrochemical testing showed that when the scanning rate was 0.5 A/g, the material achieved a specific capacitance of 330.5 F/g, and the capacitance retention rate of the electrode material was 73.5% when the current density reached 10 A/g. Furthermore, the symmetrical supercapacitor assembled with this electrode had an operating voltage window that extended to 1.8 V and provided an energy density of 20.5 W h/kg at a power density of 400 W/kg. This method of preparing high performance nitrogen-oxygen co-doped carbon electrode materials provides an idea for the application of insulating polymers in the field of energy storage.
期刊介绍：
Polymer Science, Series B is a journal published in collaboration with the Russian Academy of Sciences. Series B experimental and theoretical papers and reviews dealing with the synthesis, kinetics, catalysis, and chemical transformations of macromolecules, supramolecular structures, and polymer matrix-based composites (6 issues a year). All journal series present original papers and reviews covering all fundamental aspects of macromolecular science. Contributions should be of marked novelty and interest for a broad readership. Articles may be written in English or Russian regardless of country and nationality of authors. All manuscripts are peer reviewed
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