4.7 Article

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

Journal

DALTON TRANSACTIONS
Volume 46, Issue 38, Pages 13101-13107

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c7dt03303f

Keywords

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Funding

  1. National Natural Science Foundation of China [51502177, 51374146, 21671136, 21601126]
  2. Natural Science Foundation of Guangdong [2014A030310323]
  3. Foundation of Guangdong Educational Committee [2016KTSCX124]
  4. Shenzhen Science and Technology Project Program [ZDSYS201606061530079, KQJSCX20170327151152722, JCYJ20160422112012739, JCYJ20150324141711692]
  5. Natural Science Foundation of SZU [827-000039, 2017031]

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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.

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