【摘要】 合成了四苯基卟啉及其铁衍生物,用红外光谱进行了结构表征。采用光电子能谱(XPS)方法研究了热处理对铁卟啉结构的影响,通过测定空气电极极化曲线研究了热处理对铁卟啉的催化活性和稳定性的影响。结果表明,铁卟啉具有良好的氧气还原催化活性。热处理提高了铁卟啉的催化活性和稳定性,600℃下热处理的铁卟啉催化活性最好,800℃热处理的铁卟啉的稳定性最好。更多还原

【Abstract】 tetraphenylporphyrin and its iron (III) compound are synthesized and characterized by IR spectrum. The effect of heat-treatment on the structure of the metallic porphyryin was investigated by using XPS. Cathodic polarization curves of the air electrode loaded with the metallic porphyrin were measured to evaluate the performance of the heat-treated catalysts. The results showed that FeTPP-Cl has good catalytic activity for oxygen reduction. The catalytic activity and stability of the compounds were enhanced by the heat-treatment. Porphyrin heat-treated at 600℃ had the best catalytic activity but less stable than the catalyst heat-treated at 800℃.更多还原