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High-energy density asymmetric supercapacitor based on electrospun vanadium pentoxide and polyaniline nanofibers in aqueous electrolyte

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : High-energy density asymmetric supercapacitor based on electrospun vanadium pentoxide and polyaniline nanofibers in aqueous electrolyte
นักวิจัย : Mak, Wai Fatt , Wee, Grace , Aravindan, Vanchiappan , Gupta, Nutan , Mhaisalkar, Subodh Gautam , Madhavi, Srinivasan
คำค้น : -
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Mak, W. F., Wee, G., Aravindan, V., Gupta, N., Mhaisalkar, S. G., & Madhavi, S. (2012). High-Energy Density Asymmetric Supercapacitor Based on Electrospun Vanadium Pentoxide and Polyaniline Nanofibers in Aqueous Electrolyte. Journal of The Electrochemical Society, 159(9), A1481-A1488. , 0013-4651 , http://hdl.handle.net/10220/10906 , http://dx.doi.org/10.1149/2.040209jes
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of the electrochemical society
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Vanadium pentoxide nanofibers (VNF) and polyaniline nanofibers (PANF) nanofibers are synthesized by electrospinning and rapid chemical polymerization routes, respectively. The electrochemical performances of synthesized nanofibers are evaluated in symmetrical (VNF-VNF, PANF-PANF) and asymmetrical (VNF-PANF) configurations in aqueous KCl (3 M) medium by cyclic voltammetry (CV) and galvanostatic measurements. Both VNF and PANF fibers exhibits pseudocapacitive behavior at the electrode/electrolyte interface. The VNF-PANF asymmetrical device is capable of delivering an energy and power densities of 26.7 Wh kg−1 at 0.22 kW kg−1, respectively which is higher than that of symmetrical configuration of VNF-VNF (5.2 Wh kg−1 at 0.22 kW kg−1). In addition, VNF-PANF asymmetrical supercapacitor retained 73% of specific capacitance after 2000 cycles. These results clearly shows that high energy density supercapacitor can be constructed utilizing transitional metal oxides with conducting polymers as electro-active materials in an asymmetrical configuration in aqueous medium.

บรรณานุกรม :
Mak, Wai Fatt , Wee, Grace , Aravindan, Vanchiappan , Gupta, Nutan , Mhaisalkar, Subodh Gautam , Madhavi, Srinivasan . (2555). High-energy density asymmetric supercapacitor based on electrospun vanadium pentoxide and polyaniline nanofibers in aqueous electrolyte.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Mak, Wai Fatt , Wee, Grace , Aravindan, Vanchiappan , Gupta, Nutan , Mhaisalkar, Subodh Gautam , Madhavi, Srinivasan . 2555. "High-energy density asymmetric supercapacitor based on electrospun vanadium pentoxide and polyaniline nanofibers in aqueous electrolyte".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Mak, Wai Fatt , Wee, Grace , Aravindan, Vanchiappan , Gupta, Nutan , Mhaisalkar, Subodh Gautam , Madhavi, Srinivasan . "High-energy density asymmetric supercapacitor based on electrospun vanadium pentoxide and polyaniline nanofibers in aqueous electrolyte."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Mak, Wai Fatt , Wee, Grace , Aravindan, Vanchiappan , Gupta, Nutan , Mhaisalkar, Subodh Gautam , Madhavi, Srinivasan . High-energy density asymmetric supercapacitor based on electrospun vanadium pentoxide and polyaniline nanofibers in aqueous electrolyte. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.