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本文用XPS、DTA、和TG分析了解四苯基铁卟啉和四苯基铁卟啉化学修饰电极的热分解行为。由XPS谱图揭示了玻璃炭与四苯基铁卟啉之间的相互作用,进而阐述了经热处理的四苯基铁卟啉化学修饰电极的表面结构与电催化稳定性的关系。从四苯基铁卟啉化学修饰电极的XPS价态谱发现Fe中心离子的3d电子在电极的电催化活性中的作用。
In this paper, the thermal decomposition behavior of tetraphenylferroporphyrin and tetraphenylferroporphyrin chemically modified electrodes was studied by XPS, DTA and TG analysis. The interaction between glassy carbon and tetraphenylferroporphyrin was revealed by XPS spectra, and then the relationship between the surface structure and the electrocatalytic stability of the thermally treated tetraphenylferroporphyrins was discussed. From the XPS valence spectrum of tetraphenylferroporphylate chemically modified electrode, it was found that the 3d electron of Fe central ion plays an important role in the electrocatalytic activity of the electrode.