Electrochemical Performance of Iron and Cobalt Tetrapyrazinoporphyrazines Supported on Multiwalled Carbon Nanotubes

Abstract:

Iron tetrapyrazinoporphyrazine (FePTpz) and cobalt tetrapyrazinoporphyrazines (CoPTpz) supported on multiwalled carbon nanotubes (MWCNTs) are prepared by solid phase synthesis method. The products are characterized by scanning and transmission electron microscopy. The electrocatalytic activity of the obtained MWCNTs-supported FePTpz and CoPTpz assemblies (MPTpz/MWCNTs) is measured by cyclic voltammetry and rotating disk electrode techniques in an oxygen-saturated 0.1M KOH. The results show that MPTpz/MWCNTs are more efficient than reference MPTpz. FePTpz/MWCNTs are more efficient for O2 reduction than CoPTpz/MWCNTs, both of FePTpz/MWCNTs and CoPTpz/MWCNTs exhibit a one-step, four-electron pathway for ORR.

• Periodical: Advanced Materials Research (Volumes 634-638)
• Pages: 2155-2159
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.634-638.2155
• Online since: January 2013
• Authors: Sen Liu, Jin Hua Lu, He Jun Li, Ying Bo Fei
• Keywords: Carbon Nanotube (CN), Catalytic Activity, Oxygen Reduction, Tetrapyrazinoporphyrazine

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