{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T10:35:15Z","timestamp":1789986915195,"version":"4.0.1"},"reference-count":56,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2019,5,20]],"date-time":"2019-05-20T00:00:00Z","timestamp":1558310400000},"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":["21301154"],"award-info":[{"award-number":["21301154"]}],"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":["21771191"],"award-info":[{"award-number":["21771191"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004731","name":"Natural Science Foundation of Zhejiang Province","doi-asserted-by":"publisher","award":["ZR2013CQ020"],"award-info":[{"award-number":["ZR2013CQ020"]}],"id":[{"id":"10.13039\/501100004731","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>The simple and cost-efficient preparation of high-performance nitrogen-doped carbon aerogel (N-CA) for supercapacitors and other applications is still a big challenge. In this work, we have presented a facile strategy to synthesize hierarchically porous N-CA, which is based on solvothermal polymerization of phenol and formaldehyde under hypersaline condition with ethylenediamine (EDA) functioning as both a catalyst and a nitrogen precursor. Benefited from the catalytic effect of EDA on the polymerization, the obtained N-CA has a predominant amount of micropores (micropore ratio: 52%) with large specific surface area (1201.1 m2\u00b7g\u22121). In addition, nitrogen doping brings N-CA enhanced wettability and reduced electrochemical impedance. Therefore, the N-CA electrode shows high specific capacitance (426 F\u00b7g\u22121 at 1 A\u00b7g\u22121 in 0.5 M H2SO4) and excellent cycling stability (104% capacitance retention after 10,000 cycles) in three-electrode systems. Besides, a high energy density of 32.42 Wh\u00b7kg\u22121 at 800 W\u00b7kg\u22121 can be achieved by symmetric supercapacitor based on the N-CA electrodes, showing its promising application for energy storage. Furthermore, N-CA also exhibits good capacity and long recyclability in the absorption of organic solvents.<\/jats:p>","DOI":"10.3390\/nano9050771","type":"journal-article","created":{"date-parts":[[2019,5,20]],"date-time":"2019-05-20T11:05:07Z","timestamp":1558350307000},"page":"771","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Ethylenediamine-Catalyzed Preparation of Nitrogen-Doped Hierarchically Porous Carbon Aerogel under Hypersaline Condition for High-Performance Supercapacitors and Organic Solvent Absorbents"],"prefix":"10.3390","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9371-7497","authenticated-orcid":false,"given":"Jing","family":"Gao","sequence":"first","affiliation":[{"name":"School of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xuan","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiaxing","family":"Yang","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junxi","family":"Zhou","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mingxing","family":"Tong","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qiuyang","family":"Jin","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fangna","family":"Dai","sequence":"additional","affiliation":[{"name":"School of Materials Science and Engineering, College of Science, China University of Petroleum (East China), Qingdao 266580, Shandong, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1548-328X","authenticated-orcid":false,"given":"Guohua","family":"Li","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2019,5,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"624","DOI":"10.1016\/j.jpowsour.2016.04.038","article-title":"Microporous-mesoporous carbons for energy storage synthesized by activation of carbonaceous material by zinc chloride, potassium hydroxide or mixture of them","volume":"326","author":"Thomberg","year":"2016","journal-title":"J. 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