Enhanced cyclability of Li-O 2 batteries with cathodes of Ir and MnO 2 supported on well-defined TiN arrays
The cycling stability of Li-O batteries has been impeded by the lack of high-efficiency, and durable oxygen cathodes for the oxygen-reduction reaction (ORR) and the oxygen-evolution reaction (OER). Herein we report a novel TiN nanorod array-based cathode, which was firstly prepared by growing a TiN...
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| Veröffentlicht in: | Nanoscale 2018-02, Vol.10 (6), p.2983-2989 |
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| container_title | Nanoscale |
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| creator | Leng, Limin Li, Jing Zeng, Xiaoyuan Tian, Xinlong Song, Huiyu Cui, Zhimin Shu, Ting Wang, Haishui Ren, Jianwei Liao, Shijun |
| description | The cycling stability of Li-O
batteries has been impeded by the lack of high-efficiency, and durable oxygen cathodes for the oxygen-reduction reaction (ORR) and the oxygen-evolution reaction (OER). Herein we report a novel TiN nanorod array-based cathode, which was firstly prepared by growing a TiN nanorod array on carbon paper (CP), and then followed by depositing MnO
ultrathin sheets or Ir nanoparticles on the TiN nanorods to form well-ordered, three-dimensional (3D), and free-standing structured cathodes: TiN@MnO
/CP and TiN@Ir/CP. Both cathodes exhibited good specific capacity and excellent cycling stability. Their specific discharge capacities were up to 2637 and 2530 mA h g
, respectively. After 200 cycles for 2000 h at a current density of 100 mA g
, no obvious decays were observed for TiN@MnO
/CP and TiN@Ir/CP cathodes, while significant decreases were observed after the 80
and 30
cycles for the Pt/C and TiN/CP cathodes, respectively. Such high performance can be ascribed to the 3D array structure with enough microspace and high surface area, which facilitated the high dispersion of active components and prevented the formation of large/irreversible Li
O
. |
| doi_str_mv | 10.1039/c7nr08358k |
| format | Article |
| fullrecord | <record><control><sourceid>pubmed_cross</sourceid><recordid>TN_cdi_crossref_primary_10_1039_C7NR08358K</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>29372212</sourcerecordid><originalsourceid>FETCH-LOGICAL-c992-cfe34d9c5f771a1ddd0ac2bee7b574ef638284148ef9bb875e7834593a307083</originalsourceid><addsrcrecordid>eNo9kF1LwzAYhYMobk5v_AGSa6GaJm3TXMqYOpwb6O5LPt6wuC4tScfov7dz6tU5Bx7OxYPQbUoeUsLEo-Y-kJLl5fYMjSnJSMIYp-f_vchG6CrGL0IKwQp2iUZUDABN6RhtZ34jvQaDda9rqVztuh43Fi9cssIUK9l1EBxEfHDdBmvZbRozrIGYByy9we_-yMV92zahG34ajw9Q14kB6_yw126JZQiyj9fowso6ws1vTtDn82w9fU0Wq5f59GmRaCFooi2wzAidW85TmRpjiNRUAXCV8wxswUpaZmlWghVKlTwHXrIsF0wywgcNE3R_etWhiTGArdrgdjL0VUqqo69qypcfP77eBvjuBLd7tQPzj_4JYt-JyWVq</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Enhanced cyclability of Li-O 2 batteries with cathodes of Ir and MnO 2 supported on well-defined TiN arrays</title><source>Royal Society Of Chemistry Journals 2008-</source><creator>Leng, Limin ; Li, Jing ; Zeng, Xiaoyuan ; Tian, Xinlong ; Song, Huiyu ; Cui, Zhimin ; Shu, Ting ; Wang, Haishui ; Ren, Jianwei ; Liao, Shijun</creator><creatorcontrib>Leng, Limin ; Li, Jing ; Zeng, Xiaoyuan ; Tian, Xinlong ; Song, Huiyu ; Cui, Zhimin ; Shu, Ting ; Wang, Haishui ; Ren, Jianwei ; Liao, Shijun</creatorcontrib><description>The cycling stability of Li-O
batteries has been impeded by the lack of high-efficiency, and durable oxygen cathodes for the oxygen-reduction reaction (ORR) and the oxygen-evolution reaction (OER). Herein we report a novel TiN nanorod array-based cathode, which was firstly prepared by growing a TiN nanorod array on carbon paper (CP), and then followed by depositing MnO
ultrathin sheets or Ir nanoparticles on the TiN nanorods to form well-ordered, three-dimensional (3D), and free-standing structured cathodes: TiN@MnO
/CP and TiN@Ir/CP. Both cathodes exhibited good specific capacity and excellent cycling stability. Their specific discharge capacities were up to 2637 and 2530 mA h g
, respectively. After 200 cycles for 2000 h at a current density of 100 mA g
, no obvious decays were observed for TiN@MnO
/CP and TiN@Ir/CP cathodes, while significant decreases were observed after the 80
and 30
cycles for the Pt/C and TiN/CP cathodes, respectively. Such high performance can be ascribed to the 3D array structure with enough microspace and high surface area, which facilitated the high dispersion of active components and prevented the formation of large/irreversible Li
O
.</description><identifier>ISSN: 2040-3364</identifier><identifier>EISSN: 2040-3372</identifier><identifier>DOI: 10.1039/c7nr08358k</identifier><identifier>PMID: 29372212</identifier><language>eng</language><publisher>England</publisher><ispartof>Nanoscale, 2018-02, Vol.10 (6), p.2983-2989</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c992-cfe34d9c5f771a1ddd0ac2bee7b574ef638284148ef9bb875e7834593a307083</citedby><cites>FETCH-LOGICAL-c992-cfe34d9c5f771a1ddd0ac2bee7b574ef638284148ef9bb875e7834593a307083</cites><orcidid>0000-0003-2481-0377 ; 0000-0002-0305-4181</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29372212$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Leng, Limin</creatorcontrib><creatorcontrib>Li, Jing</creatorcontrib><creatorcontrib>Zeng, Xiaoyuan</creatorcontrib><creatorcontrib>Tian, Xinlong</creatorcontrib><creatorcontrib>Song, Huiyu</creatorcontrib><creatorcontrib>Cui, Zhimin</creatorcontrib><creatorcontrib>Shu, Ting</creatorcontrib><creatorcontrib>Wang, Haishui</creatorcontrib><creatorcontrib>Ren, Jianwei</creatorcontrib><creatorcontrib>Liao, Shijun</creatorcontrib><title>Enhanced cyclability of Li-O 2 batteries with cathodes of Ir and MnO 2 supported on well-defined TiN arrays</title><title>Nanoscale</title><addtitle>Nanoscale</addtitle><description>The cycling stability of Li-O
batteries has been impeded by the lack of high-efficiency, and durable oxygen cathodes for the oxygen-reduction reaction (ORR) and the oxygen-evolution reaction (OER). Herein we report a novel TiN nanorod array-based cathode, which was firstly prepared by growing a TiN nanorod array on carbon paper (CP), and then followed by depositing MnO
ultrathin sheets or Ir nanoparticles on the TiN nanorods to form well-ordered, three-dimensional (3D), and free-standing structured cathodes: TiN@MnO
/CP and TiN@Ir/CP. Both cathodes exhibited good specific capacity and excellent cycling stability. Their specific discharge capacities were up to 2637 and 2530 mA h g
, respectively. After 200 cycles for 2000 h at a current density of 100 mA g
, no obvious decays were observed for TiN@MnO
/CP and TiN@Ir/CP cathodes, while significant decreases were observed after the 80
and 30
cycles for the Pt/C and TiN/CP cathodes, respectively. Such high performance can be ascribed to the 3D array structure with enough microspace and high surface area, which facilitated the high dispersion of active components and prevented the formation of large/irreversible Li
O
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batteries has been impeded by the lack of high-efficiency, and durable oxygen cathodes for the oxygen-reduction reaction (ORR) and the oxygen-evolution reaction (OER). Herein we report a novel TiN nanorod array-based cathode, which was firstly prepared by growing a TiN nanorod array on carbon paper (CP), and then followed by depositing MnO
ultrathin sheets or Ir nanoparticles on the TiN nanorods to form well-ordered, three-dimensional (3D), and free-standing structured cathodes: TiN@MnO
/CP and TiN@Ir/CP. Both cathodes exhibited good specific capacity and excellent cycling stability. Their specific discharge capacities were up to 2637 and 2530 mA h g
, respectively. After 200 cycles for 2000 h at a current density of 100 mA g
, no obvious decays were observed for TiN@MnO
/CP and TiN@Ir/CP cathodes, while significant decreases were observed after the 80
and 30
cycles for the Pt/C and TiN/CP cathodes, respectively. Such high performance can be ascribed to the 3D array structure with enough microspace and high surface area, which facilitated the high dispersion of active components and prevented the formation of large/irreversible Li
O
.</abstract><cop>England</cop><pmid>29372212</pmid><doi>10.1039/c7nr08358k</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0003-2481-0377</orcidid><orcidid>https://orcid.org/0000-0002-0305-4181</orcidid></addata></record> |
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| source | Royal Society Of Chemistry Journals 2008- |
| title | Enhanced cyclability of Li-O 2 batteries with cathodes of Ir and MnO 2 supported on well-defined TiN arrays |
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