Spectroelectrochemical and electrical characterization of poly(cobalt–tetraaminophthalocyanine)-modified electrodes: electrocatalytic oxidation of hydrazine

Metallophthalocyanine-based molecular materials as catalysts for electrochemical reactions

“…Only few examples have described the electropolymerization of pyrrolesubstituted MPcs [246][247][248]. Most studies of polymeric MPcs have involved the electrochemical polymerization of tetraaminophthalocyanines (4␤(NH 2 )MPc) [77,119,137,230,[249][250][251][252][253][254][255] which involves the oxidation of the amino group to form radicals that initiate condensation by attacking phenyl rings of neighboring molecules. An illustration of a hypothetical polymer coating is given in Fig.…”

“…2e. 4␤(NH 2 )MPc has been electropolymerized on glassy carbon electrode [77,119,121,252,253,[256][257][258][259][260][261][262], ITO [77,241,258,260,262] and highly oriented pyrolytic graphite electrode [254]. Of the 4␤(NH 2 )MPc complexes, most studies have concentrated on 4␤(NH 2 )CoPc due the excellent electrocatalytic behavior of this complex towards a variety of electrochemical reactions.…”

Electropolymerization of Phthalocyanines

“…Till now, the electrochemical polymerization is known for a wide range of amino-substituted Pcs containing Cu, Zn, Fe, Al, Mn, Co, Ni, Pd, and so on [48][49][50][51][52][53][54][55][56][57][58][59][60].…”

“…The electropolymerized MTAPcs retain the electrocatalytic features of their precursors, which makes them promising candidates for the development of electrochemical sensors. Some of these polymerized Pcs are already applied as sensors to detect tert-butylhydroxyanisol [52], hydrazine [54,55], 2-mercaptoethanol [47,56], nitrite [58], glycine [59], and nitric oxide [60]. Applications of such Pc polymers in pH [53] and luminescence sensors [57] are also described.…”

Adsorption and Reactivity of Chlorogenic Acid at a Hydrophobic Carbon Ceramic Composite Electrode: Application for the Amperometric Detection of Hydrazine

“…The response time measured in amperometric determination is 1 s or less to 90% of the full signal. These analytical parameters are comparable with results reported for analytical determination of hydrazine at the surface of different modified electrodes [31 -34] or better than a GC electrode modified with a thin film of Cobalt pentacyanonitrosylferrate (CoPCNF) [5], graphite electrode modified with N,N',N'',N'''-tetra methyl-tetra 3,4-pyridoporphyrazino cobalt(II) [9] GC electrodes modified with Caffeic acid [10], pyrocatechol violet [11], chlorogenic acid [12], GC and conducting-glass electrode modified with poly(cobalt-tetraaminophthalocyanine) [35], Pt electrode modified with 4-pyridyl hydroquinone [36], Nafion / ruthenium (III) chemically modified electrode [37], screen-printed electrode modified with cobalt phthalocyanine and ruthenium cyanide coating [38 ], Prussian Blue modified GC electrode [39], or GC electrode modified with 3,4-dihydroxy benzaldehyde [40].…”