Citation: Qing Ji XIE, Xiao Lian SUN, Xiao Lan GU, Hong Wei LIU, You Yu ZHANG, Shou Zhuo YAO. In Situ Acquisition of Equivalent Circuit Parameters of Crystal Resonance during Copper Deposition and Dissolution in Acidic Solution by Electrochemical Quartz Crystal Impedance System[J]. Chinese Chemical Letters, ;1999, 10(1): 73-76. shu

In Situ Acquisition of Equivalent Circuit Parameters of Crystal Resonance during Copper Deposition and Dissolution in Acidic Solution by Electrochemical Quartz Crystal Impedance System

a Chemical Research Institute, Hunan Normal University, Changsha 410081;
b Chemistry Department, Hunan Normal University, Changsha 410081

Received Date: 4 September 1998

Fund Project: This work was supported by the National Natural Science Foundation of China and Educational Committee Foundations of China and Hunan Province.

Electrochemical quartz crystal impedance system (EQCIS) which allows in situ dynamic quartz crystal impedance measurement in an electrochemical experiment was developed by combining an HP 4395A Network/Spectrum/Impedance analyzer with an EG&G M283 potentiostat. Equivalent circuit parameters of crystal resonance change significantly during electrodeposition and dissolution of copper in 0.1 mol/L H₂S0₄ aqueous solution in a cyclic potential sweep experiment, which is explained with an overall picture of mass loading, solution density and viscosity, etc.
- In silu quartz crystal impedance measurement,
- equivalent circuit parameters,electrodeposition,
- copper
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