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Hydrogen-nitrogen plasma assisted synthesis of titanium dioxide with enhanced performance as anode for sodium ion batteries.
Sci Rep. 2020 Jul 16; 10(1):11817.SR

Abstract

Sodium ion batteries are considered as one of the most promising energy storage devices as lithium ion batteries due to the natural abundance of sodium. TiO2 is very popular as anode materials for both lithium and sodium ion batteries because of the nontoxicity, safety and great stabilities. However, the low electronic conductivities and inferior sodium ion diffusion make it becoming a great challenge to develop advanced TiO2 anodes. Doping heteroatoms and incorporation of defects are believed to be great ways to improve the electrochemical performance of TiO2 anodes. In this work, commercial TiO2 (P25) nanoparticles was modified by hydrogen and nitrogen high-power plasma resulting in a disordered surface layer formation and nitrogen doping as well. The electrochemical performances of the samples as anode materials for sodium ion batteries was measured and the results indicated that after the hydrogen-nitrogen plasma treatment, H-N-TiO2 electrode shows a 43.5% of capacity higher than the P-TiO2 after 400 cycles long-term discharge/charge process, and the samples show a good long cycling stability as well, the Coulombic efficiencies of all samples are nearly 99% after 50 cycles which could be sustained to the end of long cycling. In addition, hydrogen-nitrogen plasma treated TiO2 electrode reached the stable high Coulombic efficiency earlier than the pristine material. High resolution TEM images and XPS results indicate that there is a disordered surface layer formed after the plasma treatment, by which defects (oxygen vacancies) and N-doping are also introduced into the crystalline structure. All these contribute to the enhancement of the electrochemical performance.

Authors+Show Affiliations

Fachgebiet Werkstoffe der Elektrotechnik, Institut für Werkstofftechnik und Institut für Mikro-Und Nanotechnologien MacroNano®, TU Ilmenau, Gustav-Kirchhoff-Str. 5, 98693, Ilmenau, Germany.Fachgebiet Werkstoffe der Elektrotechnik, Institut für Werkstofftechnik und Institut für Mikro-Und Nanotechnologien MacroNano®, TU Ilmenau, Gustav-Kirchhoff-Str. 5, 98693, Ilmenau, Germany.Beijing Key Laboratory for Green Catalysis and Separation, College of Environmental and Energy Engineering, Beijing University of Technology, 100124, Beijing, People's Republic of China.Beijing Key Laboratory for Green Catalysis and Separation, College of Environmental and Energy Engineering, Beijing University of Technology, 100124, Beijing, People's Republic of China. chenge@bjut.edu.cn.Fachgebiet Werkstoffe der Elektrotechnik, Institut für Werkstofftechnik und Institut für Mikro-Und Nanotechnologien MacroNano®, TU Ilmenau, Gustav-Kirchhoff-Str. 5, 98693, Ilmenau, Germany.Fachgebiet Werkstoffe der Elektrotechnik, Institut für Werkstofftechnik und Institut für Mikro-Und Nanotechnologien MacroNano®, TU Ilmenau, Gustav-Kirchhoff-Str. 5, 98693, Ilmenau, Germany. dong.wang@tu-ilmenau.de.Fachgebiet Werkstoffe der Elektrotechnik, Institut für Werkstofftechnik und Institut für Mikro-Und Nanotechnologien MacroNano®, TU Ilmenau, Gustav-Kirchhoff-Str. 5, 98693, Ilmenau, Germany.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32678269

Citation

Wang, Hongmei, et al. "Hydrogen-nitrogen Plasma Assisted Synthesis of Titanium Dioxide With Enhanced Performance as Anode for Sodium Ion Batteries." Scientific Reports, vol. 10, no. 1, 2020, p. 11817.
Wang H, Xiong J, Cheng X, et al. Hydrogen-nitrogen plasma assisted synthesis of titanium dioxide with enhanced performance as anode for sodium ion batteries. Sci Rep. 2020;10(1):11817.
Wang, H., Xiong, J., Cheng, X., Chen, G., Kups, T., Wang, D., & Schaaf, P. (2020). Hydrogen-nitrogen plasma assisted synthesis of titanium dioxide with enhanced performance as anode for sodium ion batteries. Scientific Reports, 10(1), 11817. https://doi.org/10.1038/s41598-020-68838-x
Wang H, et al. Hydrogen-nitrogen Plasma Assisted Synthesis of Titanium Dioxide With Enhanced Performance as Anode for Sodium Ion Batteries. Sci Rep. 2020 Jul 16;10(1):11817. PubMed PMID: 32678269.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Hydrogen-nitrogen plasma assisted synthesis of titanium dioxide with enhanced performance as anode for sodium ion batteries. AU - Wang,Hongmei, AU - Xiong,Jie, AU - Cheng,Xing, AU - Chen,Ge, AU - Kups,Thomas, AU - Wang,Dong, AU - Schaaf,Peter, Y1 - 2020/07/16/ PY - 2019/12/03/received PY - 2020/07/02/accepted PY - 2020/7/18/entrez PY - 2020/7/18/pubmed PY - 2020/7/18/medline SP - 11817 EP - 11817 JF - Scientific reports JO - Sci Rep VL - 10 IS - 1 N2 - Sodium ion batteries are considered as one of the most promising energy storage devices as lithium ion batteries due to the natural abundance of sodium. TiO2 is very popular as anode materials for both lithium and sodium ion batteries because of the nontoxicity, safety and great stabilities. However, the low electronic conductivities and inferior sodium ion diffusion make it becoming a great challenge to develop advanced TiO2 anodes. Doping heteroatoms and incorporation of defects are believed to be great ways to improve the electrochemical performance of TiO2 anodes. In this work, commercial TiO2 (P25) nanoparticles was modified by hydrogen and nitrogen high-power plasma resulting in a disordered surface layer formation and nitrogen doping as well. The electrochemical performances of the samples as anode materials for sodium ion batteries was measured and the results indicated that after the hydrogen-nitrogen plasma treatment, H-N-TiO2 electrode shows a 43.5% of capacity higher than the P-TiO2 after 400 cycles long-term discharge/charge process, and the samples show a good long cycling stability as well, the Coulombic efficiencies of all samples are nearly 99% after 50 cycles which could be sustained to the end of long cycling. In addition, hydrogen-nitrogen plasma treated TiO2 electrode reached the stable high Coulombic efficiency earlier than the pristine material. High resolution TEM images and XPS results indicate that there is a disordered surface layer formed after the plasma treatment, by which defects (oxygen vacancies) and N-doping are also introduced into the crystalline structure. All these contribute to the enhancement of the electrochemical performance. SN - 2045-2322 UR - https://www.unboundmedicine.com/medline/citation/32678269/Hydrogen_nitrogen_plasma_assisted_synthesis_of_titanium_dioxide_with_enhanced_performance_as_anode_for_sodium_ion_batteries_ L2 - http://dx.doi.org/10.1038/s41598-020-68838-x DB - PRIME DP - Unbound Medicine ER -
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