Electrochemical lithiation/delithiation kinetics and capacity of phosphate tungsten bronze and its chemically pre-lithiated derivatives in aqueous solutions
Само за регистроване кориснике
2016
Аутори
Vujković, MilicaNedic, Zoran
Tancic, Pavle
Aleksić, Obrad
Nikolić, Maria Vesna
Mioc, Ubavka
Mentus, Slavko
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Monophosphate bronze (PW8O26, WPB) was synthesized by low-temperature (650 A degrees C) heating of 12-tungstophosphoric acid (WPA). Its lithiated derivative with a low lithium content (Li-3-WPB) was synthesized by heating lithium salt of WPA at 650 A degrees C. Its lithiated derivative with a high lithium content was synthesized by mechanochemical lithiation of Li3WPB (Li (n) -WPB) (n > 3), followed by heat treatment at 650 A degrees C. X-ray powder diffraction analysis confirmed that the bronze structure changed with the increase of the incorporated lithium content. These bronzes were investigated from the aspect of lithiation/delithiation kinetics in an aqueous saturated LiNO3 electrolyte solution. By cyclic voltammetry, both the kinetics of intercalation/deintercalation and the coulombic capacity were found to decrease with the increase of initial lithium content, in agreement with literature data for electrochemically lithiated tungstophosphate bronzes. Monoclinic lithium-free bron...ze PW8O26, as the most promising material, was subjected to a further detailed galvanostatic investigation coupled with the LiFe0.95V0.05PO4/C composite as a cathode material in an aqueous battery. In comparison to its behavior in an organic electrolyte, a considerably lower initial capacity of the bronze electrode was measured. However, its cyclic stability was much better in an aqueous than in an organic electrolyte.
Кључне речи:
Phosphate tungsten bronze / mechanochemical lithiation / cyclic voltametryИзвор:
Journal of Materials Science, 2016, 51, 5, 2481-2489Издавач:
- Springer, New York
Финансирање / пројекти:
- Литијум-јон батерије и горивне ћелије-истраживање и развој (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45014)
- Serbian Academy of Sciences and Arts within project "Electrocatalysis in the contemporary processes of energy conversion'
DOI: 10.1007/s10853-015-9560-5
ISSN: 0022-2461
WoS: 000367680800024
Scopus: 2-s2.0-84953352721
Институција/група
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Vujković, Milica AU - Nedic, Zoran AU - Tancic, Pavle AU - Aleksić, Obrad AU - Nikolić, Maria Vesna AU - Mioc, Ubavka AU - Mentus, Slavko PY - 2016 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/937 AB - Monophosphate bronze (PW8O26, WPB) was synthesized by low-temperature (650 A degrees C) heating of 12-tungstophosphoric acid (WPA). Its lithiated derivative with a low lithium content (Li-3-WPB) was synthesized by heating lithium salt of WPA at 650 A degrees C. Its lithiated derivative with a high lithium content was synthesized by mechanochemical lithiation of Li3WPB (Li (n) -WPB) (n > 3), followed by heat treatment at 650 A degrees C. X-ray powder diffraction analysis confirmed that the bronze structure changed with the increase of the incorporated lithium content. These bronzes were investigated from the aspect of lithiation/delithiation kinetics in an aqueous saturated LiNO3 electrolyte solution. By cyclic voltammetry, both the kinetics of intercalation/deintercalation and the coulombic capacity were found to decrease with the increase of initial lithium content, in agreement with literature data for electrochemically lithiated tungstophosphate bronzes. Monoclinic lithium-free bronze PW8O26, as the most promising material, was subjected to a further detailed galvanostatic investigation coupled with the LiFe0.95V0.05PO4/C composite as a cathode material in an aqueous battery. In comparison to its behavior in an organic electrolyte, a considerably lower initial capacity of the bronze electrode was measured. However, its cyclic stability was much better in an aqueous than in an organic electrolyte. PB - Springer, New York T2 - Journal of Materials Science T1 - Electrochemical lithiation/delithiation kinetics and capacity of phosphate tungsten bronze and its chemically pre-lithiated derivatives in aqueous solutions EP - 2489 IS - 5 SP - 2481 VL - 51 DO - 10.1007/s10853-015-9560-5 ER -
@article{ author = "Vujković, Milica and Nedic, Zoran and Tancic, Pavle and Aleksić, Obrad and Nikolić, Maria Vesna and Mioc, Ubavka and Mentus, Slavko", year = "2016", abstract = "Monophosphate bronze (PW8O26, WPB) was synthesized by low-temperature (650 A degrees C) heating of 12-tungstophosphoric acid (WPA). Its lithiated derivative with a low lithium content (Li-3-WPB) was synthesized by heating lithium salt of WPA at 650 A degrees C. Its lithiated derivative with a high lithium content was synthesized by mechanochemical lithiation of Li3WPB (Li (n) -WPB) (n > 3), followed by heat treatment at 650 A degrees C. X-ray powder diffraction analysis confirmed that the bronze structure changed with the increase of the incorporated lithium content. These bronzes were investigated from the aspect of lithiation/delithiation kinetics in an aqueous saturated LiNO3 electrolyte solution. By cyclic voltammetry, both the kinetics of intercalation/deintercalation and the coulombic capacity were found to decrease with the increase of initial lithium content, in agreement with literature data for electrochemically lithiated tungstophosphate bronzes. Monoclinic lithium-free bronze PW8O26, as the most promising material, was subjected to a further detailed galvanostatic investigation coupled with the LiFe0.95V0.05PO4/C composite as a cathode material in an aqueous battery. In comparison to its behavior in an organic electrolyte, a considerably lower initial capacity of the bronze electrode was measured. However, its cyclic stability was much better in an aqueous than in an organic electrolyte.", publisher = "Springer, New York", journal = "Journal of Materials Science", title = "Electrochemical lithiation/delithiation kinetics and capacity of phosphate tungsten bronze and its chemically pre-lithiated derivatives in aqueous solutions", pages = "2489-2481", number = "5", volume = "51", doi = "10.1007/s10853-015-9560-5" }
Vujković, M., Nedic, Z., Tancic, P., Aleksić, O., Nikolić, M. V., Mioc, U.,& Mentus, S.. (2016). Electrochemical lithiation/delithiation kinetics and capacity of phosphate tungsten bronze and its chemically pre-lithiated derivatives in aqueous solutions. in Journal of Materials Science Springer, New York., 51(5), 2481-2489. https://doi.org/10.1007/s10853-015-9560-5
Vujković M, Nedic Z, Tancic P, Aleksić O, Nikolić MV, Mioc U, Mentus S. Electrochemical lithiation/delithiation kinetics and capacity of phosphate tungsten bronze and its chemically pre-lithiated derivatives in aqueous solutions. in Journal of Materials Science. 2016;51(5):2481-2489. doi:10.1007/s10853-015-9560-5 .
Vujković, Milica, Nedic, Zoran, Tancic, Pavle, Aleksić, Obrad, Nikolić, Maria Vesna, Mioc, Ubavka, Mentus, Slavko, "Electrochemical lithiation/delithiation kinetics and capacity of phosphate tungsten bronze and its chemically pre-lithiated derivatives in aqueous solutions" in Journal of Materials Science, 51, no. 5 (2016):2481-2489, https://doi.org/10.1007/s10853-015-9560-5 . .