引用本文:
胡刚, 许莉娟, 于亚莉, 董绍俊. 用X-光电子能谱对热处理的四苯基铁卟啉化学修饰电极的研究[J]. 物理化学学报,
1989, 5(01): 33-37.
doi:
10.3866/PKU.WHXB19890108
Citation: Hu Gang, Xu Li-Juan, Yu Ya-Li, Dong Shao-Jun. Investigation of Microstructure at Iron Tetraphenylporphyrin Modified Glassy Carbon Electroed by XPS[J]. Acta Physico-Chimica Sinica, 1989, 5(01): 33-37. doi: 10.3866/PKU.WHXB19890108
Citation: Hu Gang, Xu Li-Juan, Yu Ya-Li, Dong Shao-Jun. Investigation of Microstructure at Iron Tetraphenylporphyrin Modified Glassy Carbon Electroed by XPS[J]. Acta Physico-Chimica Sinica, 1989, 5(01): 33-37. doi: 10.3866/PKU.WHXB19890108
用X-光电子能谱对热处理的四苯基铁卟啉化学修饰电极的研究
摘要:
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。
English
Investigation of Microstructure at Iron Tetraphenylporphyrin Modified Glassy Carbon Electroed by XPS
Abstract:
Microstructure of the glassy carbon surface modified with iron tetraphenyfporphyrin (FeTPP) by heat treatment has been studied by XPS,, DTA and TG. XPS spectra of Fe 2P_32 level in FeTPP and iron tetraphenylporphyriu/glassy carbon (FeTPP/GC) have shown that a bond can be formed between the glassy carbon surface and both the central metal iron ion and the macrocyclic, ligand, which loses its four phenyl groups during the beat treatment. The relationship between the surface mierostructure of FeTPP/GC and the stability of electrode for catalysis of dioxygen reduction bas been elucidated. Valence band spectra of FeTP/GC by heat treatment at various temperatures have shown the role of 3d electrons of Fe ion in electrocatalytic activity of electrode.
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