| KUNDRÁT, Vojtěch, Vít VYKOUKAL, Zdeněk MORAVEC, Zdeněk KRÁL, Petr MACHÁČ, Lucie ŠIMONÍKOVÁ a Jiří PINKAS. Multigram preparation of tungsten microfibers via needle-less electrospinning of phosphotungstic acid. International Journal of Refractory Metals and Hard Materials. Elsevier Ltd, 2023, roč. 112, April, s. 1-9. ISSN 0263-4368. Dostupné z: https://dx.doi.org/10.1016/j.ijrmhm.2023.106121. |
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@article{2255217,
author = {Kundrát, Vojtěch and Vykoukal, Vít and Moravec, Zdeněk and Král, Zdeněk and Macháč, Petr and Šimoníková, Lucie and Pinkas, Jiří},
article_number = {April},
doi = {http://dx.doi.org/10.1016/j.ijrmhm.2023.106121},
keywords = {Electrospinning; Tungsten; Metal; Phosphotungstic acid; Tungstophosphoric acid; Polyvinyl alcohol; Microfibers},
language = {eng},
issn = {0263-4368},
journal = {International Journal of Refractory Metals and Hard Materials},
title = {Multigram preparation of tungsten microfibers via needle-less electrospinning of phosphotungstic acid},
url = {https://doi.org/10.1016/j.ijrmhm.2023.106121},
volume = {112},
year = {2023}
}
TY - JOUR
ID - 2255217
AU - Kundrát, Vojtěch - Vykoukal, Vít - Moravec, Zdeněk - Král, Zdeněk - Macháč, Petr - Šimoníková, Lucie - Pinkas, Jiří
PY - 2023
TI - Multigram preparation of tungsten microfibers via needle-less electrospinning of phosphotungstic acid
JF - International Journal of Refractory Metals and Hard Materials
VL - 112
IS - April
SP - 1-9
EP - 1-9
PB - Elsevier Ltd
SN - 02634368
KW - Electrospinning
KW - Tungsten
KW - Metal
KW - Phosphotungstic acid
KW - Tungstophosphoric acid
KW - Polyvinyl alcohol
KW - Microfibers
UR - https://doi.org/10.1016/j.ijrmhm.2023.106121
N2 - Metallic tungsten microfibers were prepared in a multigram yield by electrospinning from the aqueous phosphotungstic acid/polyvinyl alcohol (PVA) solution in three steps. Green composite microfibers of H3PW12O40 /PVA were easily electrospun from precursor solutions on a Nanospider instrument with a cylindrical rotating electrode. Subsequent oxidation of the organic PVA matrix and decomposition of phosphotungstic acid in the air at 600°C provided ceramic WO3/P2O5 fibers. Finally, prepared oxide fibers were reduced in a forming gas atmosphere at temperatures up to 1000°C. During the reduction, all phosphorus was removed, and pure metallic tungsten microfibers were produced.
ER -
KUNDRÁT, Vojtěch, Vít VYKOUKAL, Zdeněk MORAVEC, Zdeněk KRÁL, Petr MACHÁČ, Lucie ŠIMONÍKOVÁ a Jiří PINKAS. Multigram preparation of tungsten microfibers via needle-less electrospinning of phosphotungstic acid. \textit{International Journal of Refractory Metals and Hard Materials}. Elsevier Ltd, 2023, roč.~112, April, s.~1-9. ISSN~0263-4368. Dostupné z: https://dx.doi.org/10.1016/j.ijrmhm.2023.106121.
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