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本文研究玻碳电极(GCE)表面Cr~(3+)/Cr~(2+)氧化还原反应产物和沉积的Au、Pb催化剂的价态以及它们对Cr~(3+)/Cr~(2+)反应的催化作用。XPS研究结果表明,Cr~(3+)/Cr~(2+)氧化还原反应产物无Cr~0或其它价态的化合物生成。Au、Pb作为催化剂以金属零价形式沉积在GCE表面。随Au、Pb光电子峰强度的变化,它们对Cr~(3+)/Cr~(2+)氧化还原反应呈现不同的催化作用。
In this paper, the valences of Cr 3+ / Cr 2+ redox products and deposited Au, Pb catalysts on glassy carbon electrode (GCE) surface and their effect on Cr 3+ / Cr 2 +) Reaction catalyzed. The results of XPS indicated that the products of Cr ~ (3 +) / Cr ~ (2+) redox reaction were free of Cr ~ 0 or other valence compounds. Au, Pb as a catalyst in the metal zero-valent form deposited on the GCE surface. With the changes of Au, Pb photoelectron intensity, they show different catalytic effects on Cr ~ (3 +) / Cr ~ (2+) redox reactions.