{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T13:37:47Z","timestamp":1790948267829,"version":"4.1.0"},"reference-count":49,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2025,1,7]],"date-time":"2025-01-07T00:00:00Z","timestamp":1736208000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52102243"],"award-info":[{"award-number":["52102243"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["S202411527081"],"award-info":[{"award-number":["S202411527081"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Undergraduate Innovation and Entrepreneurship Training Program of Hunan City University","award":["52102243"],"award-info":[{"award-number":["52102243"]}]},{"name":"Undergraduate Innovation and Entrepreneurship Training Program of Hunan City University","award":["S202411527081"],"award-info":[{"award-number":["S202411527081"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>Carbon is predominantly used in zinc-ion hybrid capacitors (ZIHCs) as an electrode material. Nitrogen doping and strategic design can enhance its electrochemical properties. Melamine formaldehyde resin, serving as a hard carbon precursor, synthesizes nitrogen-doped porous carbon after annealing. Incorporating transition metal catalysts like Ni, Co, and Fe alters the morphology, pore structure, graphitization degree, and nitrogen doping types\/proportions. Electrochemical tests reveal a superior capacitance of 159.5 F g\u22121 at a scan rate of 1 mV s\u22121 and rate performance in Fe-catalyzed N-doped porous carbon (Fe-NDPC). Advanced analysis shows Fe-NDPC\u2019s high graphitic nitrogen content and graphitization degree, boosting its electric double-layer capacitance (EDLC) and pseudocapacitance. Its abundant micro- and mesopores increase the surface area fourfold compared to non-catalyzed samples, favoring EDLC and fast electrolyte transport. This study guides catalyst application in carbon materials for supercapacitors, illuminating how catalysts influence nitrogen-doped porous carbon structure and performance.<\/jats:p>","DOI":"10.3390\/nano15020083","type":"journal-article","created":{"date-parts":[[2025,1,7]],"date-time":"2025-01-07T06:49:13Z","timestamp":1736232553000},"page":"83","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Transition Metal-Mediated Preparation of Nitrogen-Doped Porous Carbon for Advanced Zinc-Ion Hybrid Capacitors"],"prefix":"10.3390","volume":"15","author":[{"given":"Mingcheng","family":"Li","sequence":"first","affiliation":[{"name":"Key Laboratory of Low Carbon and Environmental Functional Materials of College of Hunan Province, College of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China"},{"name":"Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3467-3126","authenticated-orcid":false,"given":"Zheng","family":"Liu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Low Carbon and Environmental Functional Materials of College of Hunan Province, College of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9461-3398","authenticated-orcid":false,"given":"Dan","family":"Wu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Low Carbon and Environmental Functional Materials of College of Hunan Province, College of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huihao","family":"Wu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Low Carbon and Environmental Functional Materials of College of Hunan Province, College of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kuikui","family":"Xiao","sequence":"additional","affiliation":[{"name":"Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,1,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2104148","DOI":"10.1002\/smll.202104148","article-title":"Revealing the Two-Dimensional Surface Diffusion Mechanism for Zinc Dendrite Formation on Zinc Anode","volume":"18","author":"Yang","year":"2021","journal-title":"Small"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"10502","DOI":"10.1039\/D3TC01861J","article-title":"The structural transformation of metal-organic frameworks towards 2D carbon for a desirable supercapacitor","volume":"11","author":"Ma","year":"2023","journal-title":"J. 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