Electrochemical lithiation/delithiation kinetics and capacity of phosphate tungsten bronze and its chemically pre-lithiated derivatives in aqueous solutions
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2016
Authors
Vujković, MilicaNedić, Zoran
Tančić, Pavle
Aleksić, Obrad
Nikolić, Maria Vesna
Mioč, Ubavka
Mentus, Slavko
Article (Published version)
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Show full item recordAbstract
Monophosphate bronze (PW8O26, WPB) was synthesized by low-temperature (650 °C) heating of 12-tungstophosphoric acid (WPA). Its lithiated derivative with a low lithium content (Li3-WPB) was synthesized by heating lithium salt of WPA at 650 °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 °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 promisi...ng 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.
Keywords:
Phosphate tungsten bronze / mechanochemical lithiation / cyclic voltametrySource:
Journal of Materials Science, 2016, 51, 5, 2481-2489Publisher:
- Springer
Funding / projects:
- Lithium-ion batteries and fuel cells - research and development (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
Institution/Community
IHTMTY - JOUR AU - Vujković, Milica AU - Nedić, Zoran AU - Tančić, Pavle AU - Aleksić, Obrad AU - Nikolić, Maria Vesna AU - Mioč, Ubavka AU - Mentus, Slavko PY - 2016 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/5899 AB - Monophosphate bronze (PW8O26, WPB) was synthesized by low-temperature (650 °C) heating of 12-tungstophosphoric acid (WPA). Its lithiated derivative with a low lithium content (Li3-WPB) was synthesized by heating lithium salt of WPA at 650 °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 °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 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 VL - 51 IS - 5 SP - 2481 EP - 2489 DO - 10.1007/s10853-015-9560-5 ER -
@article{ author = "Vujković, Milica and Nedić, Zoran and Tančić, Pavle and Aleksić, Obrad and Nikolić, Maria Vesna and Mioč, Ubavka and Mentus, Slavko", year = "2016", abstract = "Monophosphate bronze (PW8O26, WPB) was synthesized by low-temperature (650 °C) heating of 12-tungstophosphoric acid (WPA). Its lithiated derivative with a low lithium content (Li3-WPB) was synthesized by heating lithium salt of WPA at 650 °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 °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", 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", volume = "51", number = "5", pages = "2481-2489", doi = "10.1007/s10853-015-9560-5" }
Vujković, M., Nedić, Z., Tančić, P., Aleksić, O., Nikolić, M. V., Mioč, 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., 51(5), 2481-2489. https://doi.org/10.1007/s10853-015-9560-5
Vujković M, Nedić Z, Tančić P, Aleksić O, Nikolić MV, Mioč 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, Nedić, Zoran, Tančić, Pavle, Aleksić, Obrad, Nikolić, Maria Vesna, Mioč, 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 . .