Abstract Interaction between ammonium pyrrolidinedithiocarbamate (PDTC) and bronze in 30 g L −1 NaCl was investigated at several concentrations between 0.1 and 10 mM by means of various electrochemical and spectroscopic techniques. Electrochemical measurements revealed a fast adsorption process of PDTC on Cu and Pb and the formation of a thick insulating and protective film with a high surface coverage. At high concentrations, PDTC prevents oxides formation. Surface analyses confirm PDTC adsorption on bronze mainly via interaction between sulphur atoms and Cu sites to form Cu I -PDTC complex.

中文翻译：

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结合电化学、电重和表面分析技术研究氯化物介质中的二硫代氨基甲酸盐/青铜相互作用

摘要 通过各种电化学和光谱技术研究了 30 g L -1 NaCl 中吡咯烷二硫代氨基甲酸铵 (PDTC) 和青铜在 0.1 到 10 mM 之间的几种浓度下的相互作用。电化学测量揭示了 PDTC 在 Cu 和 Pb 上的快速吸附过程，并形成了具有高表面覆盖率的厚绝缘和保护膜。在高浓度下，PDTC 可防止氧化物形成。表面分析证实了青铜上的 PDTC 吸附主要是通过硫原子和 Cu 位点之间的相互作用形成 Cu I -PDTC 复合物。