Polyacrylonitrile-Based Activated Carbon Fiber/SnO2 Composites via Different Synthetic Methods

Xue Jun Zhang; Su Qing Wang; Yan Hong Tian; Ya Dong Li; Xiao Xu

doi:10.4028/www.scientific.net/AMR.785-786.808

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 785-786Polyacrylonitrile-Based Activated Carbon...

Polyacrylonitrile-Based Activated Carbon Fiber/SnO₂Composites via Different Synthetic Methods

Abstract:

Polyacrylonitrile-based activated carbon fiber (PAN-ACF)/SnO₂ composites were synthesized by sol-gel and in-situ chemical synthesis method, respectively, and characterized by XRD, TGA, and SEM. The electrochemical properties of the resultant composites as negative electrodes in lithium-ion battery were also studied to investage the influence of different synthetic methods on the structure and electrochemical properties of the composites. The results show that the SnO₂ in the composites prepared by both methods has a tetragonal rutile structure but the structure and electrochemical properties are different. With the similar composition, the composites prepared by in-situ method have uniform distribution of SnO₂ particles, and exhibit better cyclic performance than those made by sol-gel method. The capacity of PAN-ACF/SnO₂composites with SnO₂ content of 42.9% prepared by in-situ method remains 401.2 mAh g^-1 after 50 charge/discharge cycles at a current density of 50 mAh g^-1.

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Periodical:

Advanced Materials Research (Volumes 785-786)

Pages:

808-811

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.785-786.808

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Online since:

September 2013

Authors:

Xue Jun Zhang, Su Qing Wang, Yan Hong Tian, Ya Dong Li, Xiao Xu

Keywords:

Electrochemical Property, In Situ Method, Lithium Battery, Polyacrylonitrile-Based Activated Carbon Fiber/SnO₂ Composites, Sol-Gel Method

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