Although hydrazine (N₂H₄) oxidation in an electrochemical environment has been of great interest for years, its intrinsic electron transfer kinetics remain uncertain. We report that the phenomenological Butler-Volmer (BV) theory is not appropriate for interpreting the process of hydrazine oxidation for which an astonishingly wide range of transfer coefficients, Tafel slopes and diffusion coefficient have been previously reported. Rather Tafel analysis for voltammetry recorded at Glassy Carbon (GC) electrodes reveals a strong potential dependence of the anodic transfer coefficient, consistent with the symmetric Marcus-Hush (sMH) theory. According to the relationship \(\beta = {{\lambda + FE_f^0} \over {2\lambda }} - {F \over {2\lambda }}E\), the reorganization energy (0.35±0.07 eV) and an approximate formal potential of the rate-determining first electron transfer were successfully extracted from the voltammetric responses.

尽管多年来在电化学环境中氧化肼（N ₂ H ₄）已引起人们极大的兴趣，但其固有的电子转移动力学仍然不确定。我们报道，现象学巴特勒-沃尔默（BV）理论不适用于解释肼氧化过程，该过程以前已报道过惊人范围的转移系数，塔菲尔斜率和扩散系数。在玻碳（GC）电极上记录的伏安法的塔夫尔（Tafel）准确分析表明，阳极转移系数具有很强的电位依赖性，这与对称的马库斯-舒什（sMH）理论一致。根据关系\（\ beta = {{\ lambda + FE_f ^ 0} \ over {2 \ lambda}}-{F \ over {2 \ lambda}} E \），成功地从伏安法响应中提取了重组能（0.35±0.07 eV）和决定初次电子转移速率的近似形式势。