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Facile Synthesis of Nitrogen/Sulfur Co-doped Three-Dimensional Holey Graphene Hydrogels for High Supercapacitive Performance
Heteroatom-doped holey graphene hydrogels (HGHs) have attracted great interest owing to their remarkable porous structure, superior electrochemical performances, and prospective applications for supercapacitors. Herein, a simple and scalable approach to synthesize nitrogen, sulfur co-doped three-dim...
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Published in: | Energy & fuels 2022-06, Vol.36 (12), p.6468-6475 |
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creator | Hu, Xinjun Chen, Songbo Chen, Manjiao Tian, Jianping Wang, Jianzhi Ma, Xiao-Yan Chen, Huqiang Ma, Yu |
description | Heteroatom-doped holey graphene hydrogels (HGHs) have attracted great interest owing to their remarkable porous structure, superior electrochemical performances, and prospective applications for supercapacitors. Herein, a simple and scalable approach to synthesize nitrogen, sulfur co-doped three-dimensional HGHs is developed using (NH4)2S2O8 as the pore-making agent and N, S sources by a one-step hydrothermal reaction. In a 6 M KOH electrolyte, the optimized HGH-based asymmetric supercapacitor exhibits an exceptionally high specific capacitance of 354 F g–1 at 1 A g–1, an excellent rate capability of 299 F g–1 at 100 A g–1, and outstanding cycle stability (104% of initial capacity retention at 5 A g–1 after 10,000 cycles). Additionally, the assembled HGH electrode supercapacitor possesses a high energy density of 21.14 Wh kg–1 (449.95 W kg–1) in a 1 M Na2SO4 electrolyte. The N, S heteroatom doping and hierarchical pore structure are ascribed to the superior electrochemical performance of HGHs. Therefore, the convenient and efficient method in the present work provides new ways into the preparation of heteroatom-doped HGHs for high-performance supercapacitors. |
doi_str_mv | 10.1021/acs.energyfuels.2c00474 |
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Herein, a simple and scalable approach to synthesize nitrogen, sulfur co-doped three-dimensional HGHs is developed using (NH4)2S2O8 as the pore-making agent and N, S sources by a one-step hydrothermal reaction. In a 6 M KOH electrolyte, the optimized HGH-based asymmetric supercapacitor exhibits an exceptionally high specific capacitance of 354 F g–1 at 1 A g–1, an excellent rate capability of 299 F g–1 at 100 A g–1, and outstanding cycle stability (104% of initial capacity retention at 5 A g–1 after 10,000 cycles). Additionally, the assembled HGH electrode supercapacitor possesses a high energy density of 21.14 Wh kg–1 (449.95 W kg–1) in a 1 M Na2SO4 electrolyte. The N, S heteroatom doping and hierarchical pore structure are ascribed to the superior electrochemical performance of HGHs. Therefore, the convenient and efficient method in the present work provides new ways into the preparation of heteroatom-doped HGHs for high-performance supercapacitors.</description><identifier>ISSN: 0887-0624</identifier><identifier>EISSN: 1520-5029</identifier><identifier>DOI: 10.1021/acs.energyfuels.2c00474</identifier><language>eng</language><publisher>American Chemical Society</publisher><subject>Batteries and Energy Storage</subject><ispartof>Energy & fuels, 2022-06, Vol.36 (12), p.6468-6475</ispartof><rights>2022 American Chemical Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a301t-7b09d04f0e8d2b897b7b5220f40a88d7191016ad19a328e5e3b63d72e331ba033</citedby><cites>FETCH-LOGICAL-a301t-7b09d04f0e8d2b897b7b5220f40a88d7191016ad19a328e5e3b63d72e331ba033</cites><orcidid>0000-0002-1542-0564 ; 0000-0003-3389-5480</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Hu, Xinjun</creatorcontrib><creatorcontrib>Chen, Songbo</creatorcontrib><creatorcontrib>Chen, Manjiao</creatorcontrib><creatorcontrib>Tian, Jianping</creatorcontrib><creatorcontrib>Wang, Jianzhi</creatorcontrib><creatorcontrib>Ma, Xiao-Yan</creatorcontrib><creatorcontrib>Chen, Huqiang</creatorcontrib><creatorcontrib>Ma, Yu</creatorcontrib><title>Facile Synthesis of Nitrogen/Sulfur Co-doped Three-Dimensional Holey Graphene Hydrogels for High Supercapacitive Performance</title><title>Energy & fuels</title><addtitle>Energy Fuels</addtitle><description>Heteroatom-doped holey graphene hydrogels (HGHs) have attracted great interest owing to their remarkable porous structure, superior electrochemical performances, and prospective applications for supercapacitors. Herein, a simple and scalable approach to synthesize nitrogen, sulfur co-doped three-dimensional HGHs is developed using (NH4)2S2O8 as the pore-making agent and N, S sources by a one-step hydrothermal reaction. In a 6 M KOH electrolyte, the optimized HGH-based asymmetric supercapacitor exhibits an exceptionally high specific capacitance of 354 F g–1 at 1 A g–1, an excellent rate capability of 299 F g–1 at 100 A g–1, and outstanding cycle stability (104% of initial capacity retention at 5 A g–1 after 10,000 cycles). Additionally, the assembled HGH electrode supercapacitor possesses a high energy density of 21.14 Wh kg–1 (449.95 W kg–1) in a 1 M Na2SO4 electrolyte. The N, S heteroatom doping and hierarchical pore structure are ascribed to the superior electrochemical performance of HGHs. Therefore, the convenient and efficient method in the present work provides new ways into the preparation of heteroatom-doped HGHs for high-performance supercapacitors.</description><subject>Batteries and Energy Storage</subject><issn>0887-0624</issn><issn>1520-5029</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNqFkMFOwzAMhiMEEmPwDOQFOpykbdIjGmxFmgBp41yljbt26poqaZEq8fB02g7cOPlgf7b_j5BHBgsGnD3pwi-wRbcfywEbv-AFQCjDKzJjEYcgAp5ckxkoJQOIeXhL7rw_AEAsVDQjPytd1A3S7dj2FfraU1vS97p3do_t03ZoysHRpQ2M7dDQXeUQg5f6iK2vbasbmtoGR7p2uqumJ2g6mhPZeFpaR9N6X9Ht0KErdDfd6etvpJ_opt5RtwXek5tSNx4fLnVOvlavu2UabD7Wb8vnTaAFsD6QOSQGwhJQGZ6rROYyjziHMgStlJEsYcBibViiBVcYochjYSRHIViuQYg5kee9hbPeOyyzztVH7caMQXaSmE0Ssz8Ss4vEiRRn8jRwsIObMvt_qV_VsH5S</recordid><startdate>20220616</startdate><enddate>20220616</enddate><creator>Hu, Xinjun</creator><creator>Chen, Songbo</creator><creator>Chen, Manjiao</creator><creator>Tian, Jianping</creator><creator>Wang, Jianzhi</creator><creator>Ma, Xiao-Yan</creator><creator>Chen, Huqiang</creator><creator>Ma, Yu</creator><general>American Chemical Society</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-1542-0564</orcidid><orcidid>https://orcid.org/0000-0003-3389-5480</orcidid></search><sort><creationdate>20220616</creationdate><title>Facile Synthesis of Nitrogen/Sulfur Co-doped Three-Dimensional Holey Graphene Hydrogels for High Supercapacitive Performance</title><author>Hu, Xinjun ; Chen, Songbo ; Chen, Manjiao ; Tian, Jianping ; Wang, Jianzhi ; Ma, Xiao-Yan ; Chen, Huqiang ; Ma, Yu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a301t-7b09d04f0e8d2b897b7b5220f40a88d7191016ad19a328e5e3b63d72e331ba033</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Batteries and Energy Storage</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hu, Xinjun</creatorcontrib><creatorcontrib>Chen, Songbo</creatorcontrib><creatorcontrib>Chen, Manjiao</creatorcontrib><creatorcontrib>Tian, Jianping</creatorcontrib><creatorcontrib>Wang, Jianzhi</creatorcontrib><creatorcontrib>Ma, Xiao-Yan</creatorcontrib><creatorcontrib>Chen, Huqiang</creatorcontrib><creatorcontrib>Ma, Yu</creatorcontrib><collection>CrossRef</collection><jtitle>Energy & fuels</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hu, Xinjun</au><au>Chen, Songbo</au><au>Chen, Manjiao</au><au>Tian, Jianping</au><au>Wang, Jianzhi</au><au>Ma, Xiao-Yan</au><au>Chen, Huqiang</au><au>Ma, Yu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Facile Synthesis of Nitrogen/Sulfur Co-doped Three-Dimensional Holey Graphene Hydrogels for High Supercapacitive Performance</atitle><jtitle>Energy & fuels</jtitle><addtitle>Energy Fuels</addtitle><date>2022-06-16</date><risdate>2022</risdate><volume>36</volume><issue>12</issue><spage>6468</spage><epage>6475</epage><pages>6468-6475</pages><issn>0887-0624</issn><eissn>1520-5029</eissn><abstract>Heteroatom-doped holey graphene hydrogels (HGHs) have attracted great interest owing to their remarkable porous structure, superior electrochemical performances, and prospective applications for supercapacitors. Herein, a simple and scalable approach to synthesize nitrogen, sulfur co-doped three-dimensional HGHs is developed using (NH4)2S2O8 as the pore-making agent and N, S sources by a one-step hydrothermal reaction. In a 6 M KOH electrolyte, the optimized HGH-based asymmetric supercapacitor exhibits an exceptionally high specific capacitance of 354 F g–1 at 1 A g–1, an excellent rate capability of 299 F g–1 at 100 A g–1, and outstanding cycle stability (104% of initial capacity retention at 5 A g–1 after 10,000 cycles). Additionally, the assembled HGH electrode supercapacitor possesses a high energy density of 21.14 Wh kg–1 (449.95 W kg–1) in a 1 M Na2SO4 electrolyte. The N, S heteroatom doping and hierarchical pore structure are ascribed to the superior electrochemical performance of HGHs. Therefore, the convenient and efficient method in the present work provides new ways into the preparation of heteroatom-doped HGHs for high-performance supercapacitors.</abstract><pub>American Chemical Society</pub><doi>10.1021/acs.energyfuels.2c00474</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-1542-0564</orcidid><orcidid>https://orcid.org/0000-0003-3389-5480</orcidid></addata></record> |
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source | American Chemical Society:Jisc Collections:American Chemical Society Read & Publish Agreement 2022-2024 (Reading list) |
subjects | Batteries and Energy Storage |
title | Facile Synthesis of Nitrogen/Sulfur Co-doped Three-Dimensional Holey Graphene Hydrogels for High Supercapacitive Performance |
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