Fluorine Doping of Layered NaxCoO2 Structure

2015
Authors
Jugović, Dragana
Milović, Miloš

Mitrić, Miodrag

Cvjetićanin, Nikola

Avdeev, Maxim

Jokić, Bojan

Uskoković, Dragan

Conference object (Published version)
Metadata
Show full item recordAbstract
The room temperature Na-ion secondary battery has been under focus lately due to its feasibility to compete against the already well-established Li-ion secondary battery. Transition metal oxides of general formula NaxMO2 have been investigated as potential cathode materials for sodium batteries. Layered NaxCoO2 is synthesized via solid-state method at 900 ºC in air atmosphere. Fluorine doping of the as-prepared powder is established by the use of ammonium hydrogen difluoride (NH4HF2) as a fluorinating agent. The fluorination takes place only at low temperature (200 ºC), while the treatment at higher temperatures (≥ 400 ºC) facilitates the formation of NaF. It is shown that various and controllable amounts of fluorine can be successfully incorporated into the structure. Finally, the effects of fluorine doping on both structural and electrochemical properties are examined.
Keywords:
Na-ion secondary batteries / fluorine / doping / NaxCoO2Source:
Programme and The Book of Abstracts / Seventeenth Annual Conference YUCOMAT 205, Herceg Novi, August 31– September 4, 2015, 2015, 12-12Publisher:
- Belgrade : Materials Research Society of Serbia
Funding / projects:
- Molecular designing of nanoparticles with controlled morphological and physicochemical characteristics and functional materials based on them (RS-45004)
- Lithium-ion batteries and fuel cells - research and development (RS-45014)
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Jugović, Dragana AU - Milović, Miloš AU - Mitrić, Miodrag AU - Cvjetićanin, Nikola AU - Avdeev, Maxim AU - Jokić, Bojan AU - Uskoković, Dragan PY - 2015 UR - https://dais.sanu.ac.rs/123456789/827 AB - The room temperature Na-ion secondary battery has been under focus lately due to its feasibility to compete against the already well-established Li-ion secondary battery. Transition metal oxides of general formula NaxMO2 have been investigated as potential cathode materials for sodium batteries. Layered NaxCoO2 is synthesized via solid-state method at 900 ºC in air atmosphere. Fluorine doping of the as-prepared powder is established by the use of ammonium hydrogen difluoride (NH4HF2) as a fluorinating agent. The fluorination takes place only at low temperature (200 ºC), while the treatment at higher temperatures (≥ 400 ºC) facilitates the formation of NaF. It is shown that various and controllable amounts of fluorine can be successfully incorporated into the structure. Finally, the effects of fluorine doping on both structural and electrochemical properties are examined. PB - Belgrade : Materials Research Society of Serbia C3 - Programme and The Book of Abstracts / Seventeenth Annual Conference YUCOMAT 205, Herceg Novi, August 31– September 4, 2015 T1 - Fluorine Doping of Layered NaxCoO2 Structure SP - 12 EP - 12 UR - https://hdl.handle.net/21.15107/rcub_dais_827 ER -
@conference{ author = "Jugović, Dragana and Milović, Miloš and Mitrić, Miodrag and Cvjetićanin, Nikola and Avdeev, Maxim and Jokić, Bojan and Uskoković, Dragan", year = "2015", abstract = "The room temperature Na-ion secondary battery has been under focus lately due to its feasibility to compete against the already well-established Li-ion secondary battery. Transition metal oxides of general formula NaxMO2 have been investigated as potential cathode materials for sodium batteries. Layered NaxCoO2 is synthesized via solid-state method at 900 ºC in air atmosphere. Fluorine doping of the as-prepared powder is established by the use of ammonium hydrogen difluoride (NH4HF2) as a fluorinating agent. The fluorination takes place only at low temperature (200 ºC), while the treatment at higher temperatures (≥ 400 ºC) facilitates the formation of NaF. It is shown that various and controllable amounts of fluorine can be successfully incorporated into the structure. Finally, the effects of fluorine doping on both structural and electrochemical properties are examined.", publisher = "Belgrade : Materials Research Society of Serbia", journal = "Programme and The Book of Abstracts / Seventeenth Annual Conference YUCOMAT 205, Herceg Novi, August 31– September 4, 2015", title = "Fluorine Doping of Layered NaxCoO2 Structure", pages = "12-12", url = "https://hdl.handle.net/21.15107/rcub_dais_827" }
Jugović, D., Milović, M., Mitrić, M., Cvjetićanin, N., Avdeev, M., Jokić, B.,& Uskoković, D.. (2015). Fluorine Doping of Layered NaxCoO2 Structure. in Programme and The Book of Abstracts / Seventeenth Annual Conference YUCOMAT 205, Herceg Novi, August 31– September 4, 2015 Belgrade : Materials Research Society of Serbia., 12-12. https://hdl.handle.net/21.15107/rcub_dais_827
Jugović D, Milović M, Mitrić M, Cvjetićanin N, Avdeev M, Jokić B, Uskoković D. Fluorine Doping of Layered NaxCoO2 Structure. in Programme and The Book of Abstracts / Seventeenth Annual Conference YUCOMAT 205, Herceg Novi, August 31– September 4, 2015. 2015;:12-12. https://hdl.handle.net/21.15107/rcub_dais_827 .
Jugović, Dragana, Milović, Miloš, Mitrić, Miodrag, Cvjetićanin, Nikola, Avdeev, Maxim, Jokić, Bojan, Uskoković, Dragan, "Fluorine Doping of Layered NaxCoO2 Structure" in Programme and The Book of Abstracts / Seventeenth Annual Conference YUCOMAT 205, Herceg Novi, August 31– September 4, 2015 (2015):12-12, https://hdl.handle.net/21.15107/rcub_dais_827 .