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|Title:||Rapid reversible electromigration of intercalated K ions within individual MoO3 nanobundle|
Ramanujam Prabhakar, R.
Xiaodai Lim, S.
Van Kan, J.A.
|Citation:||Hu, Z., Zhou, C., Ramanujam Prabhakar, R., Xiaodai Lim, S., Wang, Y., Van Kan, J.A., Cheng, H., Mhaisalkar, S.G., Sow, C.-H. (2013-01-14). Rapid reversible electromigration of intercalated K ions within individual MoO3 nanobundle. Journal of Applied Physics 113 (2) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4774244|
|Abstract:||Rapid and reversible electromigration of intercalated K ions within an individual layered single crystalline KxMoO3 nanobundle is observed. When an electric current was applied to a KxMoO 3 nanobundle, the K ions migrated readily and rapidly in the flowing direction of electrons within the nanobundle and accumulated near an electrode. Upon reversal of the applied current, the accumulated K ions near one electrode were driven back and gathered near the opposite electrode. This observation is attributed to the unique structure of KxMoO3 where K ions occupy O vacancies in the nanobundle and the location of K ions is exactly the channel of high current density within the nanobundle. The duration required to induce significant accumulation of K ions and relaxation time of accumulated ions were significantly shorter than the value reported in other interstitial systems. The reversible ion movement was repeated for hundred times and remarkably there were no obvious sign of structural damage in the nanobundle. © 2013 American Institute of Physics.|
|Source Title:||Journal of Applied Physics|
|Appears in Collections:||Staff Publications|
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