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1D hollow α-Fe2O3 electrospun nanofibers as high performance anode material for lithium ion batteries

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : 1D hollow α-Fe2O3 electrospun nanofibers as high performance anode material for lithium ion batteries
นักวิจัย : Chaudhari, Sudeshna , Srinivasan, Madhavi
คำค้น : -
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : 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). , http://hdl.handle.net/10220/11611 , http://dx.doi.org/10.1039/c2jm32989a
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of materials chemistry
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

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.

บรรณานุกรม :
Chaudhari, Sudeshna , Srinivasan, Madhavi . (2555). 1D hollow α-Fe2O3 electrospun nanofibers as high performance anode material for lithium ion batteries.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Chaudhari, Sudeshna , Srinivasan, Madhavi . 2555. "1D hollow α-Fe2O3 electrospun nanofibers as high performance anode material for lithium ion batteries".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Chaudhari, Sudeshna , Srinivasan, Madhavi . "1D hollow α-Fe2O3 electrospun nanofibers as high performance anode material for lithium ion batteries."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Chaudhari, Sudeshna , Srinivasan, Madhavi . 1D hollow α-Fe2O3 electrospun nanofibers as high performance anode material for lithium ion batteries. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.