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VO2 nanoflake arrays for supercapacitor and Li-ion battery electrodes : performance enhancement by hydrogen molybdenum bronze as an efficient shell material

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : VO2 nanoflake arrays for supercapacitor and Li-ion battery electrodes : performance enhancement by hydrogen molybdenum bronze as an efficient shell material
นักวิจัย : Xia, Xinhui , Chao, Dongliang , Ng, Chin Fan , Lin, Jianyi , Fan, Zhanxi , Zhang, Hua , Shen, Ze Xiang , Fan, Hong Jin
คำค้น : DRNTU::Engineering::Materials::Biomaterials
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2557
อ้างอิง : Xia, X., Chao, D., Ng, C. F., Lin, J., Fan, Z., Zhang, H., et al. (2014). VO2 nanoflake arrays for supercapacitor and Li-ion battery electrodes : performance enhancement by hydrogen molybdenum bronze as an efficient shell material. Materials horizons, in press. , http://hdl.handle.net/10220/24452 , http://dx.doi.org/10.1039/C4MH00212A
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Materials horizons
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Hydrogen molybdenum bronze (HMB) is electrochemically deposited as a homogeneous shell to VO2 nanoflakes grown on graphene foam (GF), forming a GF+VO2/HMB integrated electrode structure. Asymmetric supercapacitors based on the GF+VO2/HMB cathode and neutral electrolyte are assembled and show enhanced performance with weaker polarization, higher specific capacitance and better cycling life than the unmodified GF+VO2 electrode. Capacitances of 485 F/g (2 A/g) and 306 F/g (32 A/g) are obtained because of the exceptional 3D porous architecture and conductive network. In addition, the GF+VO2/HMB electrodes are also characterized as the cathode of lithium ion batteries. Very stable capacities at rates up to 30 C are demonstrated for 500 cycles. This new type of shell material is expected to have its generic function in other metal oxide based nanostructures.

ASTAR (Agency for Sci., Tech. and Research, S’pore)

MOE (Min. of Education, S’pore)

บรรณานุกรม :
Xia, Xinhui , Chao, Dongliang , Ng, Chin Fan , Lin, Jianyi , Fan, Zhanxi , Zhang, Hua , Shen, Ze Xiang , Fan, Hong Jin . (2557). VO2 nanoflake arrays for supercapacitor and Li-ion battery electrodes : performance enhancement by hydrogen molybdenum bronze as an efficient shell material.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Xia, Xinhui , Chao, Dongliang , Ng, Chin Fan , Lin, Jianyi , Fan, Zhanxi , Zhang, Hua , Shen, Ze Xiang , Fan, Hong Jin . 2557. "VO2 nanoflake arrays for supercapacitor and Li-ion battery electrodes : performance enhancement by hydrogen molybdenum bronze as an efficient shell material".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Xia, Xinhui , Chao, Dongliang , Ng, Chin Fan , Lin, Jianyi , Fan, Zhanxi , Zhang, Hua , Shen, Ze Xiang , Fan, Hong Jin . "VO2 nanoflake arrays for supercapacitor and Li-ion battery electrodes : performance enhancement by hydrogen molybdenum bronze as an efficient shell material."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2557. Print.
Xia, Xinhui , Chao, Dongliang , Ng, Chin Fan , Lin, Jianyi , Fan, Zhanxi , Zhang, Hua , Shen, Ze Xiang , Fan, Hong Jin . VO2 nanoflake arrays for supercapacitor and Li-ion battery electrodes : performance enhancement by hydrogen molybdenum bronze as an efficient shell material. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2557.