期刊
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
卷 168, 期 7, 页码 -出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1945-7111/ac0f5f
关键词
Scanning vibrating electrode technique; Array electrode; Current distribution
资金
- National Natural Science Foundation of China [51731008, 51671163]
By comparing the distribution of electronic current density and ionic current density on a Mg electrode, it was found that the current densities measured by SVET were nearly ten times lower than the electronic ones, possibly due to the presence of hydrogen bubbles on the electrode surface. Understanding the real current density distribution on the Mg surface helps to deepen the comprehension of Mg anode dissolution.
To quantitatively analyze the real current density distribution and electrochemical activity on a Mg electrode, the electronic current densities distributed on a multi-Mg wire array electrode were compared with scanning vibration electrode technique (SVET) mapped ionic current density distributions. The SVET measured current densities were found to be nearly ten times lower than the electronic ones. The cathodic current densities detected in SVET mapping could be a result of hydrogen bubbles trapped on the electrode surface. The measurement of the real current density distribution on Mg surface helps deepen the understanding of Mg anode dissolution.
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