Improved cycling performance of sulfur nanoparticles with a mussel inspired polydopamine coating. Issue 3 (4th January 2016)

• Record Type: Journal Article
• Authors: Liu, Xianmin; Men, Chuanling; Gao, Peibo; Zhuang, Shihao; Tang, Huang; Bao, Zhihao
• Is Part Of: RSC advances. Volume 6:Issue 3(2016)
• Page Start: 1902
• Page End: 1906
• Publication Date: 2016-01-04
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c5ra22352k
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A simple and environmentally benign polydopamine (pDA) coating process was successfully applied on sulfur nanoparticles to improve their electrochemical performance. Abstract : In this paper, a mussel inspired polydopamine (pDA) coating was successfully used to improve the electrochemical performance of sulfur nanoparticles. Sulfur nanoparticles with a pDA coating of a suitable thickness ( i.e. 9.5 nm) could retain a capacity of 385.1 mA h g −1, 54% of the initial capacity at 0.5C (1C = 1670 mA g −1 ) after 400 charge/discharge cycles. Their cycling performance was greatly improved compared with that of uncoated sulfur nanoparticles due to the stabilization of sulfur nanoparticles by a pDA coating. Due to simplicity of the coating process and strong adhesion of the pDA coating, the process could be easily applied to the surface modification of other electrode materials.