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Electrospun TiO2-graphene composite nanofibers as a highly durable insertion anode for lithium ion batteries

หน่วยงาน Nanyang Technological University, Singapore

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ชื่อเรื่อง : Electrospun TiO2-graphene composite nanofibers as a highly durable insertion anode for lithium ion batteries
นักวิจัย : Zhang, Xiang , Kumar, Palaniswamy Suresh , Aravindan, Vanchiappan , Liu, Huihui , Sundaramurthy, Jayaraman , Mhaisalkar, Subodh Gautam , Duong, Hai Minh , Ramakrishna, Seeram , Madhavi, Srinivasan
คำค้น : DRNTU::Science::Chemistry::Physical chemistry::Electrochemistry
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Zhang, X., Suresh Kumar, P., Aravindan, V., Liu, H. H., Sundaramurthy, J., Mhaisalkar, S. G., et al. (2012). Electrospun TiO2–graphene composite nanofibers as a highly durable insertion anode for lithium ion batteries. The journal of physical chemistry C, 116(28), 14780-14788. , http://hdl.handle.net/10220/17147 , http://dx.doi.org/10.1021/jp302574g
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : The journal of physical chemistry C
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

We report the synthesis and electrochemical performance of one-dimensional TiO2–graphene composite nanofibers (TiO2–G nanofibers) by a simple electrospinning technique for the first time. Structural and morphological properties were characterized by various techniques, such as X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, and BET surface area analysis. Lithium insertion properties were evaluated by both galvanostatic and potentiostatic modes in half-cell configurations. Cyclic voltammetric study reveals the Li-insertion/extraction by a two-phase reaction mechanism that is supported by galvanostatic charge–discharge profiles. Li/TiO2–G half-cells showed an initial discharge capacity of 260 mA h g–1 at current density of 33 mA g–1. Further, Li/TiO2–G cell retained 84% of reversible capacity after 300 cycles at a current density of 150 mA g–1, which is 25% higher than bare TiO2 nanofibers under the same test conditions. The cell also exhibits promising high rate behavior with a discharge capacity of 71 mA h g–1 at a current density of 1.8 A g–1.

บรรณานุกรม :
Zhang, Xiang , Kumar, Palaniswamy Suresh , Aravindan, Vanchiappan , Liu, Huihui , Sundaramurthy, Jayaraman , Mhaisalkar, Subodh Gautam , Duong, Hai Minh , Ramakrishna, Seeram , Madhavi, Srinivasan . (2555). Electrospun TiO2-graphene composite nanofibers as a highly durable insertion anode for lithium ion batteries.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Zhang, Xiang , Kumar, Palaniswamy Suresh , Aravindan, Vanchiappan , Liu, Huihui , Sundaramurthy, Jayaraman , Mhaisalkar, Subodh Gautam , Duong, Hai Minh , Ramakrishna, Seeram , Madhavi, Srinivasan . 2555. "Electrospun TiO2-graphene composite nanofibers as a highly durable insertion anode for lithium ion batteries".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Zhang, Xiang , Kumar, Palaniswamy Suresh , Aravindan, Vanchiappan , Liu, Huihui , Sundaramurthy, Jayaraman , Mhaisalkar, Subodh Gautam , Duong, Hai Minh , Ramakrishna, Seeram , Madhavi, Srinivasan . "Electrospun TiO2-graphene composite nanofibers as a highly durable insertion anode for lithium ion batteries."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Zhang, Xiang , Kumar, Palaniswamy Suresh , Aravindan, Vanchiappan , Liu, Huihui , Sundaramurthy, Jayaraman , Mhaisalkar, Subodh Gautam , Duong, Hai Minh , Ramakrishna, Seeram , Madhavi, Srinivasan . Electrospun TiO2-graphene composite nanofibers as a highly durable insertion anode for lithium ion batteries. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.