运用电化学循环伏安和石英晶体微天平研究了HClO4溶液中仲丁醇在Pt电极及以Sb和S吸附原子修饰的Pt(Pt/Sbad和Pt/Sad)电极上的电催化氧化过程. 从电极表面质量变化可以看出,仲丁醇的氧化与电极表面的氧物种有着极其密切的关系. Pt电极表面Sb吸附原子可在较低的电位下吸附氧,明显提高仲丁醇的氧化活性. 与Pt电极相比,Sb吸附原子修饰的Pt电极使仲丁醇氧化的峰电位负移约100 mV. 相反,Pt电极表面S吸附原子的氧化会消耗表面氧物种,抑制仲丁醇的氧化. 从电极表面质量变化提供了吸附原子电催化作用的数据.
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