In-situ Electrochemical Liquid Cell TEM Visualization of Electrode-Electrolyte Interfaces

نویسندگان

  • Haimei Zheng
  • Z. Zeng
  • W. Liang
  • H. G. Liao
  • H. L. Xin
  • Y. H. Chu
  • H. Zheng
چکیده

We have developed electrochemical liquid cells for transmission electron microscopy (TEM), which allows imaging of electrochemical processes in liquid electrolytes with high spatial resolution in situ (Fig. 1). Using this set up, we study electrochemical deposition and dissolution of lead dendrites on gold electrodes immersed in an aqueous solution of lead nitrate. Observation reveals lead dendrites grow by the fast protrusion of lead branches in the electrolyte and tip splitting. A unique electrochemical growth of single crystal dendrites through nucleation, aggregation, alignment and attachment of randomly oriented small grains is identified [1].

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تاریخ انتشار 2014