1D hollow α-Fe2O3 electrospun nanofibers as high performance anode material for lithium ion batteries
Hollow-structured α-Fe2O3 nanofibers were successfully synthesized by a simple electrospinning technique using iron acetylacetonate (Fe(acac3)) and polyvinylpyrrolidone (PVP) precursor. Fe (acac)3–PVP composite fibers were calcined at high temperature to form an interconnected 1D hollow-structure of...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/96781 http://hdl.handle.net/10220/11611 |
| _version_ | 1826130049538981888 |
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| author | Chaudhari, Sudeshna Srinivasan, Madhavi |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Chaudhari, Sudeshna Srinivasan, Madhavi |
| author_sort | Chaudhari, Sudeshna |
| collection | NTU |
| description | Hollow-structured α-Fe2O3 nanofibers were successfully synthesized by a simple electrospinning technique using iron acetylacetonate (Fe(acac3)) and polyvinylpyrrolidone (PVP) precursor. Fe (acac)3–PVP composite fibers were calcined at high temperature to form an interconnected 1D hollow-structure of α-Fe2O3 nanofibers. Thermogravimetric analysis (TGA), X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and Brunauer–Emmett–Teller (BET) were employed to characterize α-Fe2O3 hollow fibers. Based on the characterization results, a formation mechanism for electrospun α-Fe2O3 hollow fibers is proposed. Electrochemical measurements showed that the hollow-structure of α-Fe2O3 nanofibers played an important role in improving the electrode cycle stability and rate capability in lithium ion batteries. The α-Fe2O3 hollow fiber anodes exhibit a high reversible capacity of 1293 mA h g−1 at a current density of 60 mA g−1 (0.06 C) with excellent cycle stability and rate capability. Based on our study this high performance is attributed to the interconnected hollow-structure of large aspect ratio α-Fe2O3 nanofibers, which makes them a potential candidate for lithium ion batteries. |
| first_indexed | 2024-10-01T07:50:11Z |
| format | Journal Article |
| id | ntu-10356/96781 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:50:11Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/967812021-01-13T08:45:58Z 1D hollow α-Fe2O3 electrospun nanofibers as high performance anode material for lithium ion batteries Chaudhari, Sudeshna Srinivasan, Madhavi School of Materials Science and Engineering Energy Research Institute @ NTU (ERI@N) Hollow-structured α-Fe2O3 nanofibers were successfully synthesized by a simple electrospinning technique using iron acetylacetonate (Fe(acac3)) and polyvinylpyrrolidone (PVP) precursor. Fe (acac)3–PVP composite fibers were calcined at high temperature to form an interconnected 1D hollow-structure of α-Fe2O3 nanofibers. Thermogravimetric analysis (TGA), X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and Brunauer–Emmett–Teller (BET) were employed to characterize α-Fe2O3 hollow fibers. Based on the characterization results, a formation mechanism for electrospun α-Fe2O3 hollow fibers is proposed. Electrochemical measurements showed that the hollow-structure of α-Fe2O3 nanofibers played an important role in improving the electrode cycle stability and rate capability in lithium ion batteries. The α-Fe2O3 hollow fiber anodes exhibit a high reversible capacity of 1293 mA h g−1 at a current density of 60 mA g−1 (0.06 C) with excellent cycle stability and rate capability. Based on our study this high performance is attributed to the interconnected hollow-structure of large aspect ratio α-Fe2O3 nanofibers, which makes them a potential candidate for lithium ion batteries. 2013-07-16T08:20:43Z 2019-12-06T19:35:02Z 2013-07-16T08:20:43Z 2019-12-06T19:35:02Z 2012 2012 Journal Article Chaudhari, S., & Srinivasan, M. (2012). 1D hollow α-Fe2O3 electrospun nanofibers as high performance anode material for lithium ion batteries. Journal of Materials Chemistry, 22(43). https://hdl.handle.net/10356/96781 http://hdl.handle.net/10220/11611 10.1039/c2jm32989a en Journal of materials chemistry © 2012 The Royal Society of Chemistry. |
| spellingShingle | Chaudhari, Sudeshna Srinivasan, Madhavi 1D hollow α-Fe2O3 electrospun nanofibers as high performance anode material for lithium ion batteries |
| title | 1D hollow α-Fe2O3 electrospun nanofibers as high performance anode material for lithium ion batteries |
| title_full | 1D hollow α-Fe2O3 electrospun nanofibers as high performance anode material for lithium ion batteries |
| title_fullStr | 1D hollow α-Fe2O3 electrospun nanofibers as high performance anode material for lithium ion batteries |
| title_full_unstemmed | 1D hollow α-Fe2O3 electrospun nanofibers as high performance anode material for lithium ion batteries |
| title_short | 1D hollow α-Fe2O3 electrospun nanofibers as high performance anode material for lithium ion batteries |
| title_sort | 1d hollow α fe2o3 electrospun nanofibers as high performance anode material for lithium ion batteries |
| url | https://hdl.handle.net/10356/96781 http://hdl.handle.net/10220/11611 |
| work_keys_str_mv | AT chaudharisudeshna 1dhollowafe2o3electrospunnanofibersashighperformanceanodematerialforlithiumionbatteries AT srinivasanmadhavi 1dhollowafe2o3electrospunnanofibersashighperformanceanodematerialforlithiumionbatteries |