In situ nitrogen doping of TiO2 by plasma enhanced atomic layer deposition for enhanced sodium storage performance

Jinhuan Lin; Dingtao Ma; Yongliang Li; Peixin Zhang; Hongwei Mi; Libo Deng; Lingna Sun; Xiangzhong Ren

doi:10.1039/c7dt03303f

In situ nitrogen doping of TiO₂ by plasma enhanced atomic layer deposition for enhanced sodium storage performance

Dalton Trans. 2017 Oct 14;46(38):13101-13107. doi: 10.1039/c7dt03303f. Epub 2017 Sep 25.

Authors

Jinhuan Lin¹, Dingtao Ma, Yongliang Li, Peixin Zhang, Hongwei Mi, Libo Deng, Lingna Sun, Xiangzhong Ren

Affiliation

¹ College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, P.R. China. liyli@szu.edu.cn.

PMID: 28944381
DOI: 10.1039/c7dt03303f

Abstract

Nitrogen-doped TiO₂ is in situ synthesized by plasma enhanced atomic layer deposition on carbon nanotubes (N-TiO₂/CNTs). The prepared N-TiO₂/CNT nanocomposites are employed as anode materials for sodium ion batteries. The specific capacity of an N-TiO₂/CNT electrode is 1.45 times higher than that of a TiO₂/CNT electrode at a current density of 50 mA g^-1 after 200 cycles. It is demonstrated that N-TiO₂/CNTs are more effective in an electrochemical Na cell due to the enhanced kinetics which results from the nitrogen-doping and the amorphous feature.