Mamuru, Solomon A.Ozoemena, Kenneth I.Fukuda, TakamitsuKobayashi, Nagao2011-02-102011-02-102010-10Mamuru, SA, Ozoemena, KI, Fukuda, T & Kobayashi N 2010, 'Iron(II) tetrakis(diaquaplatinum)octacarboxyphthalocyanine supported on multi-walled carbon nanotube platform : an efficient functional material for enhancing electron transfer kinetics and electrocatalytic oxidation of formic acid', Journal of Materials Chemistry, vol. 20, no. 47, pp. 10705-10715. [http://pubs.rsc.org/en/Journals/JournalIssues/JM]0959-9428http://hdl.handle.net/2263/15853A novel platinum-based macrocycle, iron(II) tetrakis(diaquaplatinum)octacarboxyphthalocyanine (PtFeOCPc), was synthesised and characterised. The heterogeneous electron transfer and electrocatalytic properties of this functional material towards the oxidation of formic acid have been explored on a graphite electrode platform pre-modified with or without acid-functionalised multiwalled carbon nanotubes (MWCNTs). We prove that PtFeOCPc supported on a MWCNT platform (MWCNT–PtFeOCPc) exhibits enhanced electrochemical response in terms of (i) electron transfer towards outer-sphere redox probe, (ii) catalytic rate constant, and (iii) tolerance towards CO poisoning during formic acid oxidation. The results clearly suggest that the MWCNT–PtFeOCPc is a promising platform for potential application as an electrocatalyst for direct formic acid fuel cell.en© The Royal Society of Chemistry 2010.Iron(II) tetrakis(diaquaplatinum)OctacarboxyphthalocyanineMulti-walled carbon nanotubeElectron transfer kineticsElectrocatalytic oxidationFormic acidMacrocyclic compoundsElectrocatalysisArticle