An interlayer defect promoting the doping of the phosphate group into TiO 2 (B) nanowires with unusual structure properties towards ultra-fast and ultra-stable sodium storage
Heteroatom doping is an effective way to modulate the local structure of TiO 2 -based materials, enabling enhanced electrochemical performance. However, current studies generally adopt a single atom doping strategy, and ionic group doping has rarely been achieved and is a distinctly bigger challenge...
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Veröffentlicht in: | Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2019-07, Vol.7 (28), p.16937-16946 |
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container_title | Journal of materials chemistry. A, Materials for energy and sustainability |
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creator | Kang, Meiling Ruan, Yurong Lu, Yanzhong Luo, Lan Huang, Jinxian Zhang, Jian-Min Hong, Zhensheng |
description | Heteroatom doping is an effective way to modulate the local structure of TiO
2
-based materials, enabling enhanced electrochemical performance. However, current studies generally adopt a single atom doping strategy, and ionic group doping has rarely been achieved and is a distinctly bigger challenge. Herein, doping of the phosphate group at high concentrations into blue TiO
2
(B) nanowires is proposed and realized for the first time by skillfully utilizing the defects induced during the dehydration and topology transformation process of the H-titanate precursor; based on experimental characterization and first-principles calculations, it has been demonstrated that this material possesses exceptional electrical properties, a remarkably reduced band gap, magnetic characteristic from the extra electrons outside the Ti atomic nucleus and remarkable phase stability. Benefiting from the unusual structure properties, phosphate-doped TiO
2
(B) exhibits the ultra-fast sodium storage capability of 124 mA h g
−1
at the extremely high rate of 50 A g
−1
and excellent long cycling stability even at 10 A g
−1
after 5000 cycles. Moreover, this electrode material was tested at low temperatures and exhibited comparable reversible capacity and outstanding cycling stability to those at normal temperatures. We also assembled a B–TiO
2
(B)–P//(NVPF) full cell, which delivered the maximum energy density of 170 Wh kg
−1
and the maximum power density of 5000 W kg
−1
. |
doi_str_mv | 10.1039/C9TA05299B |
format | Article |
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2
-based materials, enabling enhanced electrochemical performance. However, current studies generally adopt a single atom doping strategy, and ionic group doping has rarely been achieved and is a distinctly bigger challenge. Herein, doping of the phosphate group at high concentrations into blue TiO
2
(B) nanowires is proposed and realized for the first time by skillfully utilizing the defects induced during the dehydration and topology transformation process of the H-titanate precursor; based on experimental characterization and first-principles calculations, it has been demonstrated that this material possesses exceptional electrical properties, a remarkably reduced band gap, magnetic characteristic from the extra electrons outside the Ti atomic nucleus and remarkable phase stability. Benefiting from the unusual structure properties, phosphate-doped TiO
2
(B) exhibits the ultra-fast sodium storage capability of 124 mA h g
−1
at the extremely high rate of 50 A g
−1
and excellent long cycling stability even at 10 A g
−1
after 5000 cycles. Moreover, this electrode material was tested at low temperatures and exhibited comparable reversible capacity and outstanding cycling stability to those at normal temperatures. We also assembled a B–TiO
2
(B)–P//(NVPF) full cell, which delivered the maximum energy density of 170 Wh kg
−1
and the maximum power density of 5000 W kg
−1
.</description><identifier>ISSN: 2050-7488</identifier><identifier>EISSN: 2050-7496</identifier><identifier>DOI: 10.1039/C9TA05299B</identifier><language>eng</language><ispartof>Journal of materials chemistry. A, Materials for energy and sustainability, 2019-07, Vol.7 (28), p.16937-16946</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c76B-34c200431d0804880a716a1aa121914678a85dd9611f8e007125fbcc9af24e123</citedby><cites>FETCH-LOGICAL-c76B-34c200431d0804880a716a1aa121914678a85dd9611f8e007125fbcc9af24e123</cites><orcidid>0000-0002-0356-5387 ; 0000-0002-2567-4955</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>Kang, Meiling</creatorcontrib><creatorcontrib>Ruan, Yurong</creatorcontrib><creatorcontrib>Lu, Yanzhong</creatorcontrib><creatorcontrib>Luo, Lan</creatorcontrib><creatorcontrib>Huang, Jinxian</creatorcontrib><creatorcontrib>Zhang, Jian-Min</creatorcontrib><creatorcontrib>Hong, Zhensheng</creatorcontrib><title>An interlayer defect promoting the doping of the phosphate group into TiO 2 (B) nanowires with unusual structure properties towards ultra-fast and ultra-stable sodium storage</title><title>Journal of materials chemistry. A, Materials for energy and sustainability</title><description>Heteroatom doping is an effective way to modulate the local structure of TiO
2
-based materials, enabling enhanced electrochemical performance. However, current studies generally adopt a single atom doping strategy, and ionic group doping has rarely been achieved and is a distinctly bigger challenge. Herein, doping of the phosphate group at high concentrations into blue TiO
2
(B) nanowires is proposed and realized for the first time by skillfully utilizing the defects induced during the dehydration and topology transformation process of the H-titanate precursor; based on experimental characterization and first-principles calculations, it has been demonstrated that this material possesses exceptional electrical properties, a remarkably reduced band gap, magnetic characteristic from the extra electrons outside the Ti atomic nucleus and remarkable phase stability. Benefiting from the unusual structure properties, phosphate-doped TiO
2
(B) exhibits the ultra-fast sodium storage capability of 124 mA h g
−1
at the extremely high rate of 50 A g
−1
and excellent long cycling stability even at 10 A g
−1
after 5000 cycles. Moreover, this electrode material was tested at low temperatures and exhibited comparable reversible capacity and outstanding cycling stability to those at normal temperatures. We also assembled a B–TiO
2
(B)–P//(NVPF) full cell, which delivered the maximum energy density of 170 Wh kg
−1
and the maximum power density of 5000 W kg
−1
.</description><issn>2050-7488</issn><issn>2050-7496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNpFUMtqwzAQFKWFhjSXfsEe24JbSX7qmIS-IJCL72ZjSYmKYxk9CPmpfmPttrR72RmYGZgh5JbRR0ZT8bQW9ZLmXIjVBZlxmtOkzERx-Yer6posvP-g41WUFkLMyOeyB9MH5To8KwdSadUGGJw92mD6PYSDAmmHCVr9zYaD9cMBg4K9s3GY3BZqswUOd6t76LG3J-OUh5MJB4h99BE78MHFNkSnpuxBuWBGRbAndNJD7ILDRKMPgL38pT7grlPgrTTxOPqtw726IVcaO68Wv39O6pfnev2WbLav7-vlJmnLYpWkWcspzVImx55jbYolK5AhMs4Ey4qywiqXUhSM6UpRWjKe613bCtQ8U4ync_LwE9s6671TuhmcOaI7N4w209bN_9bpF9VmdEg</recordid><startdate>20190716</startdate><enddate>20190716</enddate><creator>Kang, Meiling</creator><creator>Ruan, Yurong</creator><creator>Lu, Yanzhong</creator><creator>Luo, Lan</creator><creator>Huang, Jinxian</creator><creator>Zhang, Jian-Min</creator><creator>Hong, Zhensheng</creator><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-0356-5387</orcidid><orcidid>https://orcid.org/0000-0002-2567-4955</orcidid></search><sort><creationdate>20190716</creationdate><title>An interlayer defect promoting the doping of the phosphate group into TiO 2 (B) nanowires with unusual structure properties towards ultra-fast and ultra-stable sodium storage</title><author>Kang, Meiling ; Ruan, Yurong ; Lu, Yanzhong ; Luo, Lan ; Huang, Jinxian ; Zhang, Jian-Min ; Hong, Zhensheng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c76B-34c200431d0804880a716a1aa121914678a85dd9611f8e007125fbcc9af24e123</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kang, Meiling</creatorcontrib><creatorcontrib>Ruan, Yurong</creatorcontrib><creatorcontrib>Lu, Yanzhong</creatorcontrib><creatorcontrib>Luo, Lan</creatorcontrib><creatorcontrib>Huang, Jinxian</creatorcontrib><creatorcontrib>Zhang, Jian-Min</creatorcontrib><creatorcontrib>Hong, Zhensheng</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of materials chemistry. A, Materials for energy and sustainability</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kang, Meiling</au><au>Ruan, Yurong</au><au>Lu, Yanzhong</au><au>Luo, Lan</au><au>Huang, Jinxian</au><au>Zhang, Jian-Min</au><au>Hong, Zhensheng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An interlayer defect promoting the doping of the phosphate group into TiO 2 (B) nanowires with unusual structure properties towards ultra-fast and ultra-stable sodium storage</atitle><jtitle>Journal of materials chemistry. A, Materials for energy and sustainability</jtitle><date>2019-07-16</date><risdate>2019</risdate><volume>7</volume><issue>28</issue><spage>16937</spage><epage>16946</epage><pages>16937-16946</pages><issn>2050-7488</issn><eissn>2050-7496</eissn><abstract>Heteroatom doping is an effective way to modulate the local structure of TiO
2
-based materials, enabling enhanced electrochemical performance. However, current studies generally adopt a single atom doping strategy, and ionic group doping has rarely been achieved and is a distinctly bigger challenge. Herein, doping of the phosphate group at high concentrations into blue TiO
2
(B) nanowires is proposed and realized for the first time by skillfully utilizing the defects induced during the dehydration and topology transformation process of the H-titanate precursor; based on experimental characterization and first-principles calculations, it has been demonstrated that this material possesses exceptional electrical properties, a remarkably reduced band gap, magnetic characteristic from the extra electrons outside the Ti atomic nucleus and remarkable phase stability. Benefiting from the unusual structure properties, phosphate-doped TiO
2
(B) exhibits the ultra-fast sodium storage capability of 124 mA h g
−1
at the extremely high rate of 50 A g
−1
and excellent long cycling stability even at 10 A g
−1
after 5000 cycles. Moreover, this electrode material was tested at low temperatures and exhibited comparable reversible capacity and outstanding cycling stability to those at normal temperatures. We also assembled a B–TiO
2
(B)–P//(NVPF) full cell, which delivered the maximum energy density of 170 Wh kg
−1
and the maximum power density of 5000 W kg
−1
.</abstract><doi>10.1039/C9TA05299B</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-0356-5387</orcidid><orcidid>https://orcid.org/0000-0002-2567-4955</orcidid></addata></record> |
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language | eng |
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source | Royal Society Of Chemistry Journals 2008- |
title | An interlayer defect promoting the doping of the phosphate group into TiO 2 (B) nanowires with unusual structure properties towards ultra-fast and ultra-stable sodium storage |
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