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Porous hydroxide nanosheets on preformed nanowires by electrodeposition : branched nanoarrays for electrochemical energy storage

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Porous hydroxide nanosheets on preformed nanowires by electrodeposition : branched nanoarrays for electrochemical energy storage
นักวิจัย : Xia, Xinhui , Tu, Jiangping , Zhang, Yongqi , Chen, Jiao , Wang, Xiuli , Gu, Changdong , Guan, Cao , Luo, Jingshan , Fan, Hong Jin
คำค้น : -
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Xia, X., Tu, J., Zhang, Y., Chen, J., Wang, X., Gu, C., et al. (2012). Porous hydroxide nanosheets on preformed nanowires by electrodeposition : branched nanoarrays for electrochemical energy storage. Chemistry of Materials, 24(19), 3793-3799. , http://hdl.handle.net/10220/11156 , http://dx.doi.org/10.1021/cm302416d
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Chemistry of materials
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Fast, high-yield, and controllable synthesis of functional hydroxide and oxide nanomaterials on conductive substrates is highly desirable for the energy generation and storage applications. For the same purpose, three-dimensional hierarchical porous nanostructures are being regarded advantageous. In this work, we report the fabrication of porous metal hydroxide nanosheets on a preformed nanowires scaffold using the fast and well-controllable electrodeposition method. Co(OH)2 and Mn(OH)2 nanosheets are electrochemically deposited on the Co3O4 core nanowires to form core/shell arrays. Such oxide/hydroxide core/shell nanoarrays can be realized on various conductive substrates. The Co3O4/Co(OH)2 core/shell nanowire arrays are evaluated as a supercapacitor cathode material that exhibits high specific capacitances of 1095 F/g at 1 A/g and 812 F/g at 40 A/g, respectively. The mesoporous homogeneous Co3O4 core/shell nanowire arrays, obtained by annealing the Co3O4/Co(OH)2 sample, are applied as the anode material for lithium ion batteries. A high capacity of 1323 mAh/g at 0.5 C and excellent cycling stability are demonstrated. Our results show that electrodeposition is a versatile technique for fabrication of nanometal oxides on 3-D templates for electrochemical energy applications.

บรรณานุกรม :
Xia, Xinhui , Tu, Jiangping , Zhang, Yongqi , Chen, Jiao , Wang, Xiuli , Gu, Changdong , Guan, Cao , Luo, Jingshan , Fan, Hong Jin . (2555). Porous hydroxide nanosheets on preformed nanowires by electrodeposition : branched nanoarrays for electrochemical energy storage.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Xia, Xinhui , Tu, Jiangping , Zhang, Yongqi , Chen, Jiao , Wang, Xiuli , Gu, Changdong , Guan, Cao , Luo, Jingshan , Fan, Hong Jin . 2555. "Porous hydroxide nanosheets on preformed nanowires by electrodeposition : branched nanoarrays for electrochemical energy storage".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Xia, Xinhui , Tu, Jiangping , Zhang, Yongqi , Chen, Jiao , Wang, Xiuli , Gu, Changdong , Guan, Cao , Luo, Jingshan , Fan, Hong Jin . "Porous hydroxide nanosheets on preformed nanowires by electrodeposition : branched nanoarrays for electrochemical energy storage."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Xia, Xinhui , Tu, Jiangping , Zhang, Yongqi , Chen, Jiao , Wang, Xiuli , Gu, Changdong , Guan, Cao , Luo, Jingshan , Fan, Hong Jin . Porous hydroxide nanosheets on preformed nanowires by electrodeposition : branched nanoarrays for electrochemical energy storage. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.