The formation and mechanism of nano-monocrystalline -FeO with graphene-shell for high-performance lithium ion batteries
Using a sintering process with Prussian Blue (PB) and 20 wt% glucose at high temperature (950 C for 6 hours in Ar/H 2 ) with oxidation in the air at room temperature, we synthesized a nano-monocrystalline -phase iron oxide (-Fe 2 O 3 ) compound coated with carbon comprising a number of graphene laye...
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| Veröffentlicht in: | RSC advances 2016-05, Vol.6 (57), p.51777-51782 |
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| container_title | RSC advances |
| container_volume | 6 |
| creator | Hu, Jiangtao Li, Wen Liu, Chaokun Tang, Hanting Liu, Tongchao Guo, Hua Song, Xiaohe Zheng, Jiaxin Liu, Yidong Duan, Yandong Pan, Feng |
| description | Using a sintering process with Prussian Blue (PB) and 20 wt% glucose at high temperature (950 C for 6 hours in Ar/H
2
) with oxidation in the air at room temperature, we synthesized a nano-monocrystalline -phase iron oxide (-Fe
2
O
3
) compound coated with carbon comprising a number of graphene layers, which was named as coreshell nano-monocrystalline -Fe
2
O
3
@graphene. It can be noted that the formation of nano-monocrystal is different from forming coreshell nano-polycrystalline hollow -Fe
2
O
3
@graphene sintered at lower temperature (650 C 6 hours in Ar)
via
a simple Kirkendall process with oxidation at room temperature as reported in our previous study. We further investigate how nano-monocrystalline -Fe
2
O
3
is formed by controlling the synthesis process and testing with TEM and SEM. We confirmed that the nano-monocrystalline -Fe
2
O
3
is grown from nano-monocrystalline Fe with interface catalysis of O
2
and the related mechanism is discussed through comparing the structures of -Fe
2
O
3
and the Fe crystals. The coreshell nano-monocrystalline -Fe
2
O
3
@graphene shows high performance as an anode material in Li-ions batteries (much better than nano-polycrystalline hollow -Fe
2
O
3
@graphene reported in previous study). For example, the cycling stability and rate performance are remarkable as an anode material for lithium ion batteries with a high reversible capacity of 848.08 and 782.54 mA h g
1
at 1C and 5C for 600 cycles, respectively, and a high rate performance (284.42 mA h g
1
at 20C). Another interesting performance is that during the first 80 cycles, the specific capacity increases, which may result from more interface area being generated by the -Fe
2
O
3
nano-monocrystal crushing with protection of the graphene-shell during the initial charging/discharging cycles. This synthesis method and mechanism can be used as a guide to produce -Fe
2
O
3
as an anode material for lithium ion batteries with high performance on a large scale.
We have synthesized nano-monocrystalline -Fe
2
O
3
coated with graphene having high rate performance for lithium ion batteries. |
| doi_str_mv | 10.1039/c6ra08143f |
| format | Article |
| fullrecord | <record><control><sourceid>rsc</sourceid><recordid>TN_cdi_rsc_primary_c6ra08143f</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>c6ra08143f</sourcerecordid><originalsourceid>FETCH-rsc_primary_c6ra08143f3</originalsourceid><addsrcrecordid>eNqFj8FqQjEQRUNBqFQ33RfmB1KT92yoa1G668a9jHGeSUkmj0mK-PfVUujSu7mLezhwlXq25tWafrXwTtC822U_PKhpZ5ZOd8atHtW81i9zjXuznbNTdd4FgqFIxhYLA_IRMvmAHGuGMgAjF50LFy-X2jClyAR6S59wji3ASXAMxKRroJRuIgjxFPRI8itlT5CuYPzOcPMfsDWSSHWmJgOmSvO_flIv281u_aGl-v0oMaNc9v8n-nv7D9WGTpo</addsrcrecordid><sourcetype>Publisher</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>The formation and mechanism of nano-monocrystalline -FeO with graphene-shell for high-performance lithium ion batteries</title><source>Royal Society Of Chemistry Journals 2008-</source><creator>Hu, Jiangtao ; Li, Wen ; Liu, Chaokun ; Tang, Hanting ; Liu, Tongchao ; Guo, Hua ; Song, Xiaohe ; Zheng, Jiaxin ; Liu, Yidong ; Duan, Yandong ; Pan, Feng</creator><creatorcontrib>Hu, Jiangtao ; Li, Wen ; Liu, Chaokun ; Tang, Hanting ; Liu, Tongchao ; Guo, Hua ; Song, Xiaohe ; Zheng, Jiaxin ; Liu, Yidong ; Duan, Yandong ; Pan, Feng</creatorcontrib><description>Using a sintering process with Prussian Blue (PB) and 20 wt% glucose at high temperature (950 C for 6 hours in Ar/H
2
) with oxidation in the air at room temperature, we synthesized a nano-monocrystalline -phase iron oxide (-Fe
2
O
3
) compound coated with carbon comprising a number of graphene layers, which was named as coreshell nano-monocrystalline -Fe
2
O
3
@graphene. It can be noted that the formation of nano-monocrystal is different from forming coreshell nano-polycrystalline hollow -Fe
2
O
3
@graphene sintered at lower temperature (650 C 6 hours in Ar)
via
a simple Kirkendall process with oxidation at room temperature as reported in our previous study. We further investigate how nano-monocrystalline -Fe
2
O
3
is formed by controlling the synthesis process and testing with TEM and SEM. We confirmed that the nano-monocrystalline -Fe
2
O
3
is grown from nano-monocrystalline Fe with interface catalysis of O
2
and the related mechanism is discussed through comparing the structures of -Fe
2
O
3
and the Fe crystals. The coreshell nano-monocrystalline -Fe
2
O
3
@graphene shows high performance as an anode material in Li-ions batteries (much better than nano-polycrystalline hollow -Fe
2
O
3
@graphene reported in previous study). For example, the cycling stability and rate performance are remarkable as an anode material for lithium ion batteries with a high reversible capacity of 848.08 and 782.54 mA h g
1
at 1C and 5C for 600 cycles, respectively, and a high rate performance (284.42 mA h g
1
at 20C). Another interesting performance is that during the first 80 cycles, the specific capacity increases, which may result from more interface area being generated by the -Fe
2
O
3
nano-monocrystal crushing with protection of the graphene-shell during the initial charging/discharging cycles. This synthesis method and mechanism can be used as a guide to produce -Fe
2
O
3
as an anode material for lithium ion batteries with high performance on a large scale.
We have synthesized nano-monocrystalline -Fe
2
O
3
coated with graphene having high rate performance for lithium ion batteries.</description><identifier>EISSN: 2046-2069</identifier><identifier>DOI: 10.1039/c6ra08143f</identifier><ispartof>RSC advances, 2016-05, Vol.6 (57), p.51777-51782</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids></links><search><creatorcontrib>Hu, Jiangtao</creatorcontrib><creatorcontrib>Li, Wen</creatorcontrib><creatorcontrib>Liu, Chaokun</creatorcontrib><creatorcontrib>Tang, Hanting</creatorcontrib><creatorcontrib>Liu, Tongchao</creatorcontrib><creatorcontrib>Guo, Hua</creatorcontrib><creatorcontrib>Song, Xiaohe</creatorcontrib><creatorcontrib>Zheng, Jiaxin</creatorcontrib><creatorcontrib>Liu, Yidong</creatorcontrib><creatorcontrib>Duan, Yandong</creatorcontrib><creatorcontrib>Pan, Feng</creatorcontrib><title>The formation and mechanism of nano-monocrystalline -FeO with graphene-shell for high-performance lithium ion batteries</title><title>RSC advances</title><description>Using a sintering process with Prussian Blue (PB) and 20 wt% glucose at high temperature (950 C for 6 hours in Ar/H
2
) with oxidation in the air at room temperature, we synthesized a nano-monocrystalline -phase iron oxide (-Fe
2
O
3
) compound coated with carbon comprising a number of graphene layers, which was named as coreshell nano-monocrystalline -Fe
2
O
3
@graphene. It can be noted that the formation of nano-monocrystal is different from forming coreshell nano-polycrystalline hollow -Fe
2
O
3
@graphene sintered at lower temperature (650 C 6 hours in Ar)
via
a simple Kirkendall process with oxidation at room temperature as reported in our previous study. We further investigate how nano-monocrystalline -Fe
2
O
3
is formed by controlling the synthesis process and testing with TEM and SEM. We confirmed that the nano-monocrystalline -Fe
2
O
3
is grown from nano-monocrystalline Fe with interface catalysis of O
2
and the related mechanism is discussed through comparing the structures of -Fe
2
O
3
and the Fe crystals. The coreshell nano-monocrystalline -Fe
2
O
3
@graphene shows high performance as an anode material in Li-ions batteries (much better than nano-polycrystalline hollow -Fe
2
O
3
@graphene reported in previous study). For example, the cycling stability and rate performance are remarkable as an anode material for lithium ion batteries with a high reversible capacity of 848.08 and 782.54 mA h g
1
at 1C and 5C for 600 cycles, respectively, and a high rate performance (284.42 mA h g
1
at 20C). Another interesting performance is that during the first 80 cycles, the specific capacity increases, which may result from more interface area being generated by the -Fe
2
O
3
nano-monocrystal crushing with protection of the graphene-shell during the initial charging/discharging cycles. This synthesis method and mechanism can be used as a guide to produce -Fe
2
O
3
as an anode material for lithium ion batteries with high performance on a large scale.
We have synthesized nano-monocrystalline -Fe
2
O
3
coated with graphene having high rate performance for lithium ion batteries.</description><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNqFj8FqQjEQRUNBqFQ33RfmB1KT92yoa1G668a9jHGeSUkmj0mK-PfVUujSu7mLezhwlXq25tWafrXwTtC822U_PKhpZ5ZOd8atHtW81i9zjXuznbNTdd4FgqFIxhYLA_IRMvmAHGuGMgAjF50LFy-X2jClyAR6S59wji3ASXAMxKRroJRuIgjxFPRI8itlT5CuYPzOcPMfsDWSSHWmJgOmSvO_flIv281u_aGl-v0oMaNc9v8n-nv7D9WGTpo</recordid><startdate>20160526</startdate><enddate>20160526</enddate><creator>Hu, Jiangtao</creator><creator>Li, Wen</creator><creator>Liu, Chaokun</creator><creator>Tang, Hanting</creator><creator>Liu, Tongchao</creator><creator>Guo, Hua</creator><creator>Song, Xiaohe</creator><creator>Zheng, Jiaxin</creator><creator>Liu, Yidong</creator><creator>Duan, Yandong</creator><creator>Pan, Feng</creator><scope/></search><sort><creationdate>20160526</creationdate><title>The formation and mechanism of nano-monocrystalline -FeO with graphene-shell for high-performance lithium ion batteries</title><author>Hu, Jiangtao ; Li, Wen ; Liu, Chaokun ; Tang, Hanting ; Liu, Tongchao ; Guo, Hua ; Song, Xiaohe ; Zheng, Jiaxin ; Liu, Yidong ; Duan, Yandong ; Pan, Feng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-rsc_primary_c6ra08143f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><creationdate>2016</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hu, Jiangtao</creatorcontrib><creatorcontrib>Li, Wen</creatorcontrib><creatorcontrib>Liu, Chaokun</creatorcontrib><creatorcontrib>Tang, Hanting</creatorcontrib><creatorcontrib>Liu, Tongchao</creatorcontrib><creatorcontrib>Guo, Hua</creatorcontrib><creatorcontrib>Song, Xiaohe</creatorcontrib><creatorcontrib>Zheng, Jiaxin</creatorcontrib><creatorcontrib>Liu, Yidong</creatorcontrib><creatorcontrib>Duan, Yandong</creatorcontrib><creatorcontrib>Pan, Feng</creatorcontrib><jtitle>RSC advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hu, Jiangtao</au><au>Li, Wen</au><au>Liu, Chaokun</au><au>Tang, Hanting</au><au>Liu, Tongchao</au><au>Guo, Hua</au><au>Song, Xiaohe</au><au>Zheng, Jiaxin</au><au>Liu, Yidong</au><au>Duan, Yandong</au><au>Pan, Feng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The formation and mechanism of nano-monocrystalline -FeO with graphene-shell for high-performance lithium ion batteries</atitle><jtitle>RSC advances</jtitle><date>2016-05-26</date><risdate>2016</risdate><volume>6</volume><issue>57</issue><spage>51777</spage><epage>51782</epage><pages>51777-51782</pages><eissn>2046-2069</eissn><abstract>Using a sintering process with Prussian Blue (PB) and 20 wt% glucose at high temperature (950 C for 6 hours in Ar/H
2
) with oxidation in the air at room temperature, we synthesized a nano-monocrystalline -phase iron oxide (-Fe
2
O
3
) compound coated with carbon comprising a number of graphene layers, which was named as coreshell nano-monocrystalline -Fe
2
O
3
@graphene. It can be noted that the formation of nano-monocrystal is different from forming coreshell nano-polycrystalline hollow -Fe
2
O
3
@graphene sintered at lower temperature (650 C 6 hours in Ar)
via
a simple Kirkendall process with oxidation at room temperature as reported in our previous study. We further investigate how nano-monocrystalline -Fe
2
O
3
is formed by controlling the synthesis process and testing with TEM and SEM. We confirmed that the nano-monocrystalline -Fe
2
O
3
is grown from nano-monocrystalline Fe with interface catalysis of O
2
and the related mechanism is discussed through comparing the structures of -Fe
2
O
3
and the Fe crystals. The coreshell nano-monocrystalline -Fe
2
O
3
@graphene shows high performance as an anode material in Li-ions batteries (much better than nano-polycrystalline hollow -Fe
2
O
3
@graphene reported in previous study). For example, the cycling stability and rate performance are remarkable as an anode material for lithium ion batteries with a high reversible capacity of 848.08 and 782.54 mA h g
1
at 1C and 5C for 600 cycles, respectively, and a high rate performance (284.42 mA h g
1
at 20C). Another interesting performance is that during the first 80 cycles, the specific capacity increases, which may result from more interface area being generated by the -Fe
2
O
3
nano-monocrystal crushing with protection of the graphene-shell during the initial charging/discharging cycles. This synthesis method and mechanism can be used as a guide to produce -Fe
2
O
3
as an anode material for lithium ion batteries with high performance on a large scale.
We have synthesized nano-monocrystalline -Fe
2
O
3
coated with graphene having high rate performance for lithium ion batteries.</abstract><doi>10.1039/c6ra08143f</doi><tpages>6</tpages></addata></record> |
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| recordid | cdi_rsc_primary_c6ra08143f |
| source | Royal Society Of Chemistry Journals 2008- |
| title | The formation and mechanism of nano-monocrystalline -FeO with graphene-shell for high-performance lithium ion batteries |
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