Oscillatory co-electroposition of copper and tin

Química Nova

Gonzalez, Ernesto R.¹  Universidade de São Paulo, São Carlos, Brasil¹  Varela, Hamilton¹  Joanni, Edson¹ 

关键词: oscillations;    electrodeposition;    self-;    organization.;   

DOI  :  10.1590/S0100-40422008000600031

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

It is investigated in the present contribution the oscillatory co-electrodeposition of CuSn on a polycrystalline gold surface in the presence of Triton X-100 surfactant and citric acid as additive, in acidic media. The experiments were conducted under potentiostatic control and the system dynamics characterized in terms of the morphology and stability of the current oscillations. Besides modulations in the frequency and amplitude of the current oscillations, several patterned states were observed, including relaxation-like and mixed mode oscillations. The oscillations were found to be very robust and some time series presented regular motions up to about two hours.

【 授权许可】

Unknown