TY - JOUR
T1 - Magneto-Dendrite Effect
T2 - Copper Electrodeposition under High Magnetic Field
AU - Miura, Makoto
AU - Oshikiri, Yoshinobu
AU - Sugiyama, Atsushi
AU - Morimoto, Ryoichi
AU - Mogi, Iwao
AU - Miura, Miki
AU - Takagi, Satoshi
AU - Yamauchi, Yusuke
AU - Aogaki, Ryoichi
PY - 2017/4/4
Y1 - 2017/4/4
N2 - Ionic vacancy is a by-product in electrochemical reaction, composed of polarized free space of the order of 0.1 nm with a 1 s lifetime, and playing key roles in nano-electrochemical processes. However, its chemical nature has not yet been clarified. In copper electrodeposition under a high magnetic field of 15 T, using a new electrode system called cyclotron magnetohydrodynamic (MHD) electrode (CMHDE) composed of a pair of concentric cylindrical electrodes, we have found an extraordinary dendritic growth with a drastic positive potential shift from hydrogen-gas evolution potential. Dendritic deposition is characterized by the co-deposition of hydrogen molecule, but such a positive potential shift makes hydrogen-gas evolution impossible. However, in the high magnetic field, instead of flat deposit, remarkable dendritic growth emerged. By examining the chemical nature of ionic vacancy, it was concluded that ionic vacancy works on the dendrite formation with the extraordinary potential shift.
AB - Ionic vacancy is a by-product in electrochemical reaction, composed of polarized free space of the order of 0.1 nm with a 1 s lifetime, and playing key roles in nano-electrochemical processes. However, its chemical nature has not yet been clarified. In copper electrodeposition under a high magnetic field of 15 T, using a new electrode system called cyclotron magnetohydrodynamic (MHD) electrode (CMHDE) composed of a pair of concentric cylindrical electrodes, we have found an extraordinary dendritic growth with a drastic positive potential shift from hydrogen-gas evolution potential. Dendritic deposition is characterized by the co-deposition of hydrogen molecule, but such a positive potential shift makes hydrogen-gas evolution impossible. However, in the high magnetic field, instead of flat deposit, remarkable dendritic growth emerged. By examining the chemical nature of ionic vacancy, it was concluded that ionic vacancy works on the dendrite formation with the extraordinary potential shift.
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U2 - 10.1038/srep45511
DO - 10.1038/srep45511
M3 - Article
AN - SCOPUS:85017157119
SN - 2045-2322
VL - 7
JO - Scientific Reports
JF - Scientific Reports
M1 - 45511
ER -