Electrochemical Catalytic Processes with Hydrogen Peroxide Showing Oxidative and Reductive Properties (Acting as Oxidant or Reductant)

Abstract

It has been found that hydrogen peroxide can act as an oxidant and as a reductant of transition metal complexes in acetonitrile. Therefore, the examples of catalytic currents of oxidants and reductants has been described. In the case of Co(acac) 3 both the types of catalytic currents are present in a single cyclic-voltammetric scan.

Electrochemical and Computational Chemistry Study of Mn(β-diketonato)3 complexes

“…Electrochemically and chemically reversible redox processes are theoretically characterized by a peak separation of DE p = 0.059 V and peak current ratio of one, respectively [31][32][33]. The assignment of the redox couples as well as the redox values are in good agreement with previously published results; see Table 2 for a summary [4,[9][10][11][12]14]. We also observe that the redox potentials vs ferrocene as reference system, vary with the nature of the solvent; see Table 2 and Table S1 to compare data of Mn(CH 3 COCHCOCH 3 ) 3 , complex (2), in both CH 3 CN and DCM as solvent.…”

“…Considering different Mn(b-diketonato) 3 complexes, it seems as if, with only one exception [8], Mn(CH 3 COCHCOCH 3 ) 3 (2), is the only Mn(b-diketonato) 3 complex that has previously been studied by electrochemistry [4,[9][10][11][12][13][14]. In this study we therefore present an electrochemical study of a series of four new and five known Mn(b-diketonato) 3 complexes, with b-diketonato = dpm (1), acac (2), ba (3) (new), dbm (4), tfaa (5) (new), tfth (6) (new), tffu (7), tfba (8) (new) and hfaa (9), see Scheme 1.…”

Renewable New Copper Complex Bulk‐Modified Carbon Paste Electrode: Preparation, Electrochemistry, and Electrocatalysis

“…The process of electroreduction of hydrogen peroxide at the surface of Cu-CPE is similar to that of the bromate and the nitrite. The following catalytic scheme showed that the copper-complex catalyzed hydrogen peroxide reduction [51].…”

Efficient Cr(vi) photoreduction under natural solar irradiation using a novel step-scheme ZnS/SnIn4S8 nanoheterostructured photocatalysts

“…The at band, E  , values were estimated by extending the linear t line from 1/C 2 versus E plot. The E  of ZnS, SnIn 4 S 8 and ZnS/SnIn 4 S 8 NPs were determined to be À0.77, À1.33 and À1.21 V vs. SCE respectively which are corresponding to À0.53, À1.10 and À0.97 V vs. NHE respectively as E (NHE) ¼ E (SCE) + 0.242 V. 29 The potential for ntype semiconductors is substantially higher by 0.1-0.3 eV, depending on the effective electron mass and carrier concentration than the at band potential. 30 The difference in potentials between conduction and at bands has been set at 0.2 eV in this experiment.…”