Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 5 of 5
Full-Text Articles in Engineering
Dispersion Of Sno2 Nanocrystals On Tio2(B) Nanowires As Anode Material For Lithium Ion Battery Applications, Zunxian Yang, Guodong Du, Qing Meng, Zaiping Guo, Xuebin Yu, Zhixin Chen, Tailiang Guo, Rong Zeng
Dispersion Of Sno2 Nanocrystals On Tio2(B) Nanowires As Anode Material For Lithium Ion Battery Applications, Zunxian Yang, Guodong Du, Qing Meng, Zaiping Guo, Xuebin Yu, Zhixin Chen, Tailiang Guo, Rong Zeng
Faculty of Engineering - Papers (Archive)
TiO2(B)@SnO2 core–shell hybrid nanowires have been synthesized by a facile hydrothermal process and subsequent liquid phase reaction. Hybrid nanowire electrodes exhibit excellent reversible lithium storage capacity rate capability and good cyclability, mainly due to the particular architecture of the composite, which features an open continuous channel along its axis, facilitating lithium ion diffusion, and provides effective mechanical support for the TiO2(B) core, alleviating the stress produced during discharge–charge cycling and also preventing the pulverization of the Sn nanoparticles. Owing to its superior electrochemical performance, this composite could be a promising potential anode material for lithium …
Tio2(B)@Carbon Composite Nanowires As Anode For Lithium Ion Batteries With Enhanced Reversible Capacity And Cyclic Performance, Zunxian Yang, Guodong Du, Zaiping Guo, Xuebin Yu, Zhixin Chen, Tailiang Guo, Hua-Kun Liu
Tio2(B)@Carbon Composite Nanowires As Anode For Lithium Ion Batteries With Enhanced Reversible Capacity And Cyclic Performance, Zunxian Yang, Guodong Du, Zaiping Guo, Xuebin Yu, Zhixin Chen, Tailiang Guo, Hua-Kun Liu
Faculty of Engineering - Papers (Archive)
Novel TiO2(B)@carbon composite nanowires were simply prepared by a two-step hydrothermal process with subsequent heat treatment in argon. The nanostructures exhibit the unique feature of having TiO2(B) encapsulated inside and an amorphous carbon layer coating the outside. The unique core/shell structure and chemical composition is likely to lead to perfect performance in many applications. In this paper, the results of Li-ion battery testing are presented to demonstrate the superior cyclic performance and rate capability of the TiO2(B)@carbon nanowires. The composite nanowires exhibit a high reversible capacity of 560 mAh g−1 after 100 cycles …
Nanoconfinement Of Lithium Borohydride In Cu-Mofs Towards Low Temperature Dehydrogenation, W.W Sun, Shaofeng Li, Jianfeng Mao, Zaiping Guo, Hua-Kun Liu, S. X. Dou, Xuebin Yu
Nanoconfinement Of Lithium Borohydride In Cu-Mofs Towards Low Temperature Dehydrogenation, W.W Sun, Shaofeng Li, Jianfeng Mao, Zaiping Guo, Hua-Kun Liu, S. X. Dou, Xuebin Yu
Faculty of Engineering - Papers (Archive)
Successful synthesis and investigation of a new material that uses copper-metal–organic frameworks (Cu-MOFs) as the template for loading LiBH4 are reported. The nanoconfinement of LiBH4 in the pores of Cu-MOFs results in an interaction between LiBH4 and Cu2+ ions, enabling the LiBH4@Cu- MOFs system to achieve a much lower dehydrogenation temperature than pristine LiBH4.
Effects Of Polypyrrole On The Performance Of Nickel Oxide Anode Materials For Rechargeable Lithium-Ion Batteries, Nurul H. Idris, Jiazhao Wang, Shulei Chou, Chao Zhong, Md Mokhlesur Rahman, Hua-Kun Liu
Effects Of Polypyrrole On The Performance Of Nickel Oxide Anode Materials For Rechargeable Lithium-Ion Batteries, Nurul H. Idris, Jiazhao Wang, Shulei Chou, Chao Zhong, Md Mokhlesur Rahman, Hua-Kun Liu
Faculty of Engineering - Papers (Archive)
Nickel oxide–polypyrrole (NiO–PPy) composites for lithium-ion batteries were prepared by a chemical polymerization method with sodium p-toluenesulfonate as the dopant, Triton-X as the surfactant, and FeCl3 as the oxidant. The new composite material was characterized by Raman spectroscopy, thermogravimetric analysis, scanning electron microscopy, and field-emission scanning electron microscopy. Nanosize conducting PPy particles with a cauliflower-like morphology were uniformly coated onto the surface of the NiO powder. The electrochemical results were improved for the NiO–PPy composite compared with the pristine NiO. After 30 cycles, the capacities of the NiO and the NiO–PPy composite were about 119 and 436 mAh·g …
Graphene V2o5 Nh2o Xerogel Composite Cathodes For Lithium Ion Batteries, Guodong Du, Kuok Hau Seng, Zaiping Guo, Jun Liu, Wenxian Li, D Z. Jia, Christopher D. Cook, Z Liu, Hua-Kun Liu
Graphene V2o5 Nh2o Xerogel Composite Cathodes For Lithium Ion Batteries, Guodong Du, Kuok Hau Seng, Zaiping Guo, Jun Liu, Wenxian Li, D Z. Jia, Christopher D. Cook, Z Liu, Hua-Kun Liu
Faculty of Engineering - Papers (Archive)
A layer structured V2O5·nH2O xerogel was synthesized via a simple green hydrothermal technique by dissolving commercial V2O5 powder in de-ionized water and hydrogen peroxide. Graphene–V2O5·nH2O xerogel composites were then prepared by mixing and filtration of as-prepared V2O5·nH2O xerogel and graphene in the desired ratio. The method is a cost effective and energy saving way to prepare nanostructured composites. Structure and morphology were investigated by X-ray diffraction, thermogravimetric analysis, field emission scanning electron microscopy, …