Atomic Fe-N 4 /C in Flexible Carbon Fiber Membrane as Binder-Free Air Cathode for Zn-Air Batteries with Stable Cycling over 1000 h
Noble-metal-free, durable, and high-efficiency electrocatalysts for oxygen reduction and evolution reaction (ORR/OER) are vital for rechargeable Zn-air batteries (ZABs). Herein, a flexible and free-standing carbon fiber membrane immobilized with atomically dispersed Fe-N /C catalysts (Fe/SNCFs-NH )...
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Veröffentlicht in: | Advanced materials (Weinheim) 2022-02, Vol.34 (5), p.e2105410 |
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creator | Yang, Leping Zhang, Xu Yu, Lingxiao Hou, Jianhua Zhou, Zhen Lv, Ruitao |
description | Noble-metal-free, durable, and high-efficiency electrocatalysts for oxygen reduction and evolution reaction (ORR/OER) are vital for rechargeable Zn-air batteries (ZABs). Herein, a flexible and free-standing carbon fiber membrane immobilized with atomically dispersed Fe-N
/C catalysts (Fe/SNCFs-NH
) is synthesized and used as air cathode for ZABs. The intertwined fibers with hierarchical nanopores facilitate the gas transportation, electrolyte infiltration and electron transfer. The large specific surface area exposes a high concentration of Fe-N
/C sites embedded in the carbon matrix. Modulation of local atomic configurations by sulfur doping in Fe/SNCFs-NH
catalyst leads to excellent ORR and enhanced OER activities. The as-synthesized Fe/SNCFs-NH
catalyst demonstrates a positive half-wave potential of 0.89 V and a small Tafel slope of 70.82 mV dec
, outperforming the commercial Pt/C (0.86 V/94.74 mV dec
) and most reported M-N
/C (M = Fe, Co, Ni) catalysts. Experimental characterizations and theoretical calculations uncover the crucial role of S doping in regulating ORR and OER activities. The liquid-state ZABs with Fe/SNCFs-NH
catalyst as air cathode deliver a large peak power density of 255.84 mW cm
and long-term cycle durability over 1000 h. Solid-state ZAB shows stable cycling at various flat/bent/flat states, demonstrating great prospects in flexible electronic device applications. |
doi_str_mv | 10.1002/adma.202105410 |
format | Article |
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/C catalysts (Fe/SNCFs-NH
) is synthesized and used as air cathode for ZABs. The intertwined fibers with hierarchical nanopores facilitate the gas transportation, electrolyte infiltration and electron transfer. The large specific surface area exposes a high concentration of Fe-N
/C sites embedded in the carbon matrix. Modulation of local atomic configurations by sulfur doping in Fe/SNCFs-NH
catalyst leads to excellent ORR and enhanced OER activities. The as-synthesized Fe/SNCFs-NH
catalyst demonstrates a positive half-wave potential of 0.89 V and a small Tafel slope of 70.82 mV dec
, outperforming the commercial Pt/C (0.86 V/94.74 mV dec
) and most reported M-N
/C (M = Fe, Co, Ni) catalysts. Experimental characterizations and theoretical calculations uncover the crucial role of S doping in regulating ORR and OER activities. The liquid-state ZABs with Fe/SNCFs-NH
catalyst as air cathode deliver a large peak power density of 255.84 mW cm
and long-term cycle durability over 1000 h. Solid-state ZAB shows stable cycling at various flat/bent/flat states, demonstrating great prospects in flexible electronic device applications.</description><identifier>ISSN: 0935-9648</identifier><identifier>EISSN: 1521-4095</identifier><identifier>DOI: 10.1002/adma.202105410</identifier><identifier>PMID: 34787336</identifier><language>eng</language><publisher>Germany</publisher><ispartof>Advanced materials (Weinheim), 2022-02, Vol.34 (5), p.e2105410</ispartof><rights>2021 Wiley-VCH GmbH.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c192t-99105214d0e40ae7eedc2ea4df38abdf4d917b0b3da113c295b984036dd699883</citedby><cites>FETCH-LOGICAL-c192t-99105214d0e40ae7eedc2ea4df38abdf4d917b0b3da113c295b984036dd699883</cites><orcidid>0000-0002-3214-9489</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/34787336$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Yang, Leping</creatorcontrib><creatorcontrib>Zhang, Xu</creatorcontrib><creatorcontrib>Yu, Lingxiao</creatorcontrib><creatorcontrib>Hou, Jianhua</creatorcontrib><creatorcontrib>Zhou, Zhen</creatorcontrib><creatorcontrib>Lv, Ruitao</creatorcontrib><title>Atomic Fe-N 4 /C in Flexible Carbon Fiber Membrane as Binder-Free Air Cathode for Zn-Air Batteries with Stable Cycling over 1000 h</title><title>Advanced materials (Weinheim)</title><addtitle>Adv Mater</addtitle><description>Noble-metal-free, durable, and high-efficiency electrocatalysts for oxygen reduction and evolution reaction (ORR/OER) are vital for rechargeable Zn-air batteries (ZABs). Herein, a flexible and free-standing carbon fiber membrane immobilized with atomically dispersed Fe-N
/C catalysts (Fe/SNCFs-NH
) is synthesized and used as air cathode for ZABs. The intertwined fibers with hierarchical nanopores facilitate the gas transportation, electrolyte infiltration and electron transfer. The large specific surface area exposes a high concentration of Fe-N
/C sites embedded in the carbon matrix. Modulation of local atomic configurations by sulfur doping in Fe/SNCFs-NH
catalyst leads to excellent ORR and enhanced OER activities. The as-synthesized Fe/SNCFs-NH
catalyst demonstrates a positive half-wave potential of 0.89 V and a small Tafel slope of 70.82 mV dec
, outperforming the commercial Pt/C (0.86 V/94.74 mV dec
) and most reported M-N
/C (M = Fe, Co, Ni) catalysts. Experimental characterizations and theoretical calculations uncover the crucial role of S doping in regulating ORR and OER activities. The liquid-state ZABs with Fe/SNCFs-NH
catalyst as air cathode deliver a large peak power density of 255.84 mW cm
and long-term cycle durability over 1000 h. Solid-state ZAB shows stable cycling at various flat/bent/flat states, demonstrating great prospects in flexible electronic device applications.</description><issn>0935-9648</issn><issn>1521-4095</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNo9kElPwzAUhC0EoqVw5Yj8B9w-L1l8bCsCSAUOwIVLZMcv1ChL5YSlV345KUtPT_M0M9J8hJxzmHIAMTOuNlMBgkOkOByQMY8EZwp0dEjGoGXEdKzSETnpulcA0DHEx2QkVZImUsZj8jXv29oXNEN2RxWdLalvaFbhp7cV0qUJth20txjoLdY2mAap6ejCNw4DywIinfswGPt165CWbaDPDdu9FqbvMXjs6Ifv1_ShNz-N26LyzQtt34fGYQHQ9Sk5Kk3V4dnfnZCn7PJxec1W91c3y_mKFVyLnmk9bBRcOUAFBhNEVwg0ypUyNdaVymmeWLDSGc5lIXRkdapAxs7FWqepnJDpb28R2q4LWOab4GsTtjmHfAcz38HM9zCHwMVvYPNma3R7-z89-Q2Hjm3v</recordid><startdate>202202</startdate><enddate>202202</enddate><creator>Yang, Leping</creator><creator>Zhang, Xu</creator><creator>Yu, Lingxiao</creator><creator>Hou, Jianhua</creator><creator>Zhou, Zhen</creator><creator>Lv, Ruitao</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-3214-9489</orcidid></search><sort><creationdate>202202</creationdate><title>Atomic Fe-N 4 /C in Flexible Carbon Fiber Membrane as Binder-Free Air Cathode for Zn-Air Batteries with Stable Cycling over 1000 h</title><author>Yang, Leping ; Zhang, Xu ; Yu, Lingxiao ; Hou, Jianhua ; Zhou, Zhen ; Lv, Ruitao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c192t-99105214d0e40ae7eedc2ea4df38abdf4d917b0b3da113c295b984036dd699883</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yang, Leping</creatorcontrib><creatorcontrib>Zhang, Xu</creatorcontrib><creatorcontrib>Yu, Lingxiao</creatorcontrib><creatorcontrib>Hou, Jianhua</creatorcontrib><creatorcontrib>Zhou, Zhen</creatorcontrib><creatorcontrib>Lv, Ruitao</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><jtitle>Advanced materials (Weinheim)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yang, Leping</au><au>Zhang, Xu</au><au>Yu, Lingxiao</au><au>Hou, Jianhua</au><au>Zhou, Zhen</au><au>Lv, Ruitao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Atomic Fe-N 4 /C in Flexible Carbon Fiber Membrane as Binder-Free Air Cathode for Zn-Air Batteries with Stable Cycling over 1000 h</atitle><jtitle>Advanced materials (Weinheim)</jtitle><addtitle>Adv Mater</addtitle><date>2022-02</date><risdate>2022</risdate><volume>34</volume><issue>5</issue><spage>e2105410</spage><pages>e2105410-</pages><issn>0935-9648</issn><eissn>1521-4095</eissn><abstract>Noble-metal-free, durable, and high-efficiency electrocatalysts for oxygen reduction and evolution reaction (ORR/OER) are vital for rechargeable Zn-air batteries (ZABs). Herein, a flexible and free-standing carbon fiber membrane immobilized with atomically dispersed Fe-N
/C catalysts (Fe/SNCFs-NH
) is synthesized and used as air cathode for ZABs. The intertwined fibers with hierarchical nanopores facilitate the gas transportation, electrolyte infiltration and electron transfer. The large specific surface area exposes a high concentration of Fe-N
/C sites embedded in the carbon matrix. Modulation of local atomic configurations by sulfur doping in Fe/SNCFs-NH
catalyst leads to excellent ORR and enhanced OER activities. The as-synthesized Fe/SNCFs-NH
catalyst demonstrates a positive half-wave potential of 0.89 V and a small Tafel slope of 70.82 mV dec
, outperforming the commercial Pt/C (0.86 V/94.74 mV dec
) and most reported M-N
/C (M = Fe, Co, Ni) catalysts. Experimental characterizations and theoretical calculations uncover the crucial role of S doping in regulating ORR and OER activities. The liquid-state ZABs with Fe/SNCFs-NH
catalyst as air cathode deliver a large peak power density of 255.84 mW cm
and long-term cycle durability over 1000 h. Solid-state ZAB shows stable cycling at various flat/bent/flat states, demonstrating great prospects in flexible electronic device applications.</abstract><cop>Germany</cop><pmid>34787336</pmid><doi>10.1002/adma.202105410</doi><orcidid>https://orcid.org/0000-0002-3214-9489</orcidid></addata></record> |
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title | Atomic Fe-N 4 /C in Flexible Carbon Fiber Membrane as Binder-Free Air Cathode for Zn-Air Batteries with Stable Cycling over 1000 h |
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