Studies on the heterogeneous electron transport and oxygen reduction reaction at metal (Co, Fe) octabutylsulphonylphthalocyanines supported on multi-walled carbon nanotube modified graphite electrode

Oxygen reduction reaction at MWCNT-modified nanoscale iron(ii) tetrasulfophthalocyanine: remarkable performance over platinum and tolerance toward methanol in alkaline medium

“…From RDE data, it is also observed that the diffusion-limited current densities for the different materials are slightly different, although they should always be the same. This behaviour has been observed by others for MWCNT-based electrodes, [36][37][38] and was related to the morphology of the electrode materials which leads to a change in the diffusion regime (i.e., semi-innite linear diffusion and/or thin layer diffusion processes). 36,39 We attribute this behaviour to mainly the thin layer diffusion process; oxidation of electroactive species/electrolytes trapped in pockets in between the high surface area porous nanotubes.…”

“…It may be necessary to emphasize here that the nanoFeTSPc reported in this work is physico-chemically quite different from the iron(II) octabutylsulphonylphthalocyanine complex (FeOBSPc) studied by Mamuru et al 38 for ORR. For example, although both are hydrophobic in nature, the FeOBSPc contains eight "-SO 2 -C 4 H 9 " group at the peripheral positions of the The nanoFeTSPc is an easy-to-make compound compared to the more synthetically-challenging FeOBSPc complex.…”

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

“…They exhibit remarkable redox [1][2][3][4] and physico-chemical properties that are of interest in fundamental and applied research fields such as electrocatalysis and sensing, 1,5-9 electrochromic and electroluminescent display devices, 10 liquid crystal display devices, 11 photodynamic therapy 12 and other photosensitisation processes, [13][14][15][16] and in the development of energy storage and conversion systems such as fuel cells, 17 oxygen reduction reaction, [18][19][20][21] lithium ion battery, 22,23 and supercapacitor development. [24][25][26] The importance of MPc complexes in these technologically important applications has remained the major motivation for the intense search for novel MPc complexes.…”

A simple degradation method for sulfur mustard at ambient conditions using nickelphthalocyanine incorporated polypyrrole modified electrode

“…To overcome this problem, modified electrodes particularly, metallophthalocyanine modified electrodes have shown good electrocatalytic activity due to the accessibility of a range of oxidation states centred on the phthalocyanine unit or on the central metal (Lever et al 1993). Transition-metal phthalocyanine modified electrodes were extensively studied due to their numerous applications in electrocatalysis such as O 2 (Pal and Ganesan 2009;Baker et al 2008;Mamuru et al 2010;Zagal et al 2010;Sun et al 2011;Arechederra et al 2010), thiols (Griveau et al 2004;Sehlotho et al 2006) and hydrazine oxidation (ParedesGarcia et al 2005;Ozoemena and Nyokong 2005).…”