Electrochemical and electrocatalytic properties of meso-triphenylcorrole and its complexes with Mn(III), Co(III), Cu(III), and Zn(II)

An Influence of Copper Cation in the Complex on Structure of the Nanostructured Layers, Spectral and Electrocatalytic Characteristics of Langmuir-Schaeffer Films of Triphenylcorrole

“…The monolayers of ligand are stable up to 2.2 mN/m. [60] Schematic views of floating monolayers and 3D nanoaggregates of triphenylcorrole and its complex with copper formed at different initial surface coverage degrees are shown in Figure 6.…”

Electrochemical Properties of Thermally Expanded Graphites and Oxidized Graphites Modified With Transition Metal Salts

“…Характерной особенностью зависимостей тока от потенциала при введении кислорода в электролит является значительное увеличение то-ка в области потенциалов от -0,1 до -0,6 и от -0,7 до -1,0 В на катодной части кривой. Это обусловлено протеканием процесса электровосстановления молекулярного кислорода по уравнениям: [13].…”

Electrocatalytic Reduction of Oxygen on Graphitized Carbon Electrode Modified with 5,15-Bis(pyrid-4-yl)-3,7,13,17-tetramethyl- 2,8,12,18-tetraethylporphine and Its Cu(II) and Fe(III) Complexes

“…[38] Cu(II) -5,15-bis(pyrid-4-yl) 7,13,8,12,Cu II (4-Py) 2 TMeTEtP. The 10-fold excess of Cu(CH 3 COO) 2 ·H 2 O was added to the solution of 50 mg (0.079 mmol) of ligand in 10 ml of DMF.…”

“…Assignment of the observed maxima to certain electrochemical processes was carried out on the basis of data given in the literature for compounds structurally related. [13,23,[39][40][41] It was reported that in an alkaline medium for ligands without pyridyl substutients (H 2 TMeTEtP and H 2 TPhP) only two process of electroreduction were observed: the first peaks at E redox = -0.74 V and -0.62 V, and the second -at -1.25 V and -1.03 V, respectively. For structurally related porphyrins containing pyridyl fragmemts (H 2 (3-Py) HMeDEtP and H 2 (4-Py)HMeDEtP) three electroreduction steps have been detected; [23,39] two of them are close to the E redox values of H 2 TMeTEtP and H 2 TPhP, and are -0.73 V and -1.20 V. The third peak is observed at E redox = -0.90 V for H 2 (3-Py)HMeDEtP and E redox = -0.95 V for H 2 (4-Py)HMeDEtP in the CV-curves.…”

“…However, because of their high cost, extensive research over the past several decades has focused on developing alternative catalytic systems. Such materials are non-noble metals, [7] carbon materials, [8,9] transition metal macroheterocyclic complexes, including porphyrins, [10,11] phtalocyanines and corroles, [12,13] metal oxides, [14] napthoquinone and anthraquinone derivatives [15][16][17][18][19][20] and others. Pyridyl substituted porphyrins and their complexes with d-metals form a group of perspective catalysts in ORR due to the features of their chemical structure.…”