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High-quality metal oxide core/shell nanowire arrays on conductive substrates for electrochemical energy storage

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : High-quality metal oxide core/shell nanowire arrays on conductive substrates for electrochemical energy storage
นักวิจัย : Xia, Xinhui , Tu, Jiangping , Zhang, Yongqi , Wang, Xiuli , Gu, Changdong , Zhao, Xin-bing , Fan, Hong Jin
คำค้น : -
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Xia, X., Tu, J., Zhang, Y., Wang, X., Gu, C., Zhao, X.-b., et al. (2012). High-Quality Metal Oxide Core/Shell Nanowire Arrays on Conductive Substrates for Electrochemical Energy Storage. ACS Nano, 6(6), 5531-5538. , 1936-0851 , http://hdl.handle.net/10220/10315 , http://dx.doi.org/10.1021/nn301454q
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : ACS nano
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

The high performance of a pseudocapacitor electrode relies largely on a scrupulous design of nanoarchitectures and smart hybridization of bespoke active materials. We present a powerful two-step solution-based method for the fabrication of transition metal oxide core/shell nanostructure arrays on various conductive substrates. Demonstrated examples include Co3O4 or ZnO nanowire core and NiO nanoflake shells with a hierarchical and porous morphology. The “oriented attachment” and “self-assembly” crystal growth mechanisms are proposed to explain the formation of the NiO nanoflake shell. Supercapacitor electrodes based on the Co3O4/NiO nanowire arrays on 3D macroporous nickel foam are thoroughly characterized. The electrodes exhibit a high specific capacitance of 853 F/g at 2 A/g after 6000 cycles and an excellent cycling stability, owing to the unique porous core/shell nanowire array architecture, and a rational combination of two electrochemically active materials. Our growth approach offers a new technique for the design and synthesis of transition metal oxide or hydroxide hierarchical nanoarrays that are promising for electrochemical energy storage, catalysis, and gas sensing applications.

บรรณานุกรม :
Xia, Xinhui , Tu, Jiangping , Zhang, Yongqi , Wang, Xiuli , Gu, Changdong , Zhao, Xin-bing , Fan, Hong Jin . (2555). High-quality metal oxide core/shell nanowire arrays on conductive substrates for electrochemical energy storage.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Xia, Xinhui , Tu, Jiangping , Zhang, Yongqi , Wang, Xiuli , Gu, Changdong , Zhao, Xin-bing , Fan, Hong Jin . 2555. "High-quality metal oxide core/shell nanowire arrays on conductive substrates for electrochemical energy storage".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Xia, Xinhui , Tu, Jiangping , Zhang, Yongqi , Wang, Xiuli , Gu, Changdong , Zhao, Xin-bing , Fan, Hong Jin . "High-quality metal oxide core/shell nanowire arrays on conductive substrates for electrochemical energy storage."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Xia, Xinhui , Tu, Jiangping , Zhang, Yongqi , Wang, Xiuli , Gu, Changdong , Zhao, Xin-bing , Fan, Hong Jin . High-quality metal oxide core/shell nanowire arrays on conductive substrates for electrochemical energy storage. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.