Mechanistic studies on versatile metal-assisted hydrogen peroxide activation processes for biomedical and environmental incentives

Oszajca, Maria; Brindell, Małgorzata; Orzeł, Łukasz; Dąbrowski, Janusz; Śpiewak, Klaudyna; Łabuz, Przemysław; Pacia, Michał; Stochel-Gaudyn, Anna; Macyk, Wojciech; Eldik, Rudi van; Stochel, Grażyna

doi:10.1016/j.ccr.2016.05.013

Cited by 61 publications

(35 citation statements)

References 303 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These processes may occur competitively depending on the electronic structures of PS and the oxygen concentration in the reaction environment. Superoxide anions are not very reactive in biological systems, but they can further react to produce hydrogen peroxide that is able to cross biological membranes [57,58]. Furthermore, in the presence of metal ions, such as iron or copper, hydroxyl radicals are generated via the Fenton reaction [17,58].…”

Section: Tetrapyrroles -Photophysics and Photochemistrymentioning

confidence: 98%

“…Superoxide anions are not very reactive in biological systems, but they can further react to produce hydrogen peroxide that is able to cross biological membranes [57,58]. Furthermore, in the presence of metal ions, such as iron or copper, hydroxyl radicals are generated via the Fenton reaction [17,58]. Hydroxyl radical is a very strong oxidant due to its high redox potential (E° = 2.8 V) and can oxidize almost any biomolecule within a cell and destroy biologically-important structures.…”

Section: Tetrapyrroles -Photophysics and Photochemistrymentioning

confidence: 99%

See 1 more Smart Citation

Engineering of relevant photodynamic processes through structural modifications of metallotetrapyrrolic photosensitizers

Dąbrowski

Pucelik

Regiel-Futyra

et al. 2016

Coordination Chemistry Reviews

Self Cite

248

197

View full text Add to dashboard Cite

Section: Tetrapyrroles -Photophysics and Photochemistrymentioning

confidence: 98%

Section: Tetrapyrroles -Photophysics and Photochemistrymentioning

confidence: 99%

Engineering of relevant photodynamic processes through structural modifications of metallotetrapyrrolic photosensitizers

Dąbrowski

Pucelik

Regiel-Futyra

et al. 2016

Coordination Chemistry Reviews

Self Cite

248

197

View full text Add to dashboard Cite

“…362 This DHFC can operate continuously for about 2,000 hr with continuous fuel supply, and supplies about 0.58 V at 1 A, which makes it suitable for mass production. 362 Hydrogen Peroxide Photocatalytic Reduction of O 2 to H 2 O 2 by H 2 O Hydrogen peroxide (H 2 O 2 ) is a useful environmentally friendly oxidant for organic synthesis, [363][364][365][366][367][368][369][370] bleaching of paper pulp, 371,372 and degradation of dyes and other organic contaminants in waste water, [373][374][375][376] because it emits only water as a byproduct. [373][374][375][376] H 2 O 2 is also used as a rocket fuel.…”

Section: Photocatalytic Production Of Ammonia By Nitrogen Fixation Anmentioning

confidence: 99%

Production of Liquid Solar Fuels and Their Use in Fuel Cells

Fukuzumi

2017

Joule

173

116

View full text Add to dashboard Cite

This review focuses on the production of liquid fuels using solar energy combined with their use in direct liquid fuel cells. The production of formic acid, which is the two-electron reduced product of CO 2 , as a solar liquid fuel as well as a hydrogen storage material is discussed together with its use in direct formate fuel cells. Other CO 2 reduction products such as methanol and formaldehyde as solar liquid fuels as well as hydrogen storage materials are reviewed with the performance of the corresponding fuel cells. The production of nitrogen fixation products such as ammonia and hydrazine is also reviewed together with their fuel cells. Finally, the production of hydrogen peroxide from not only pure water but also seawater and dioxygen in the air using solar energy is discussed and combined with the recent development of one-compartment hydrogen peroxide fuel cells.

show abstract

“…A detailed kinetic analysis led the authors to conclude that the most likely reaction is the interaction of the Cu 2+ complex with the ascorbate ion The behavior of the peasant from Aesop's fable is reminiscent of the behavior of a hydrogen peroxide molecule. So, for example, hydrogen peroxide can oxidize an iron(II) compound in Fenton's reagent [39][40][41][42][43][44]. But hydrogen peroxide can reduce iron(III) derivatives and tetranitromethane (see below).…”

Section: Oxidation and Reduction With H2o2mentioning

confidence: 99%

Metal Complexes Containing Redox-Active Ligands in Oxidation of Hydrocarbons and Alcohols: A Review

2019

View full text Add to dashboard Cite

Ligands are innocent when they allow oxidation states of the central atoms to be defined. A noninnocent (or redox) ligand is a ligand in a metal complex where the oxidation state is not clear. Dioxygen can be a noninnocent species, since it exists in two oxidation states, i.e., superoxide (O2−) and peroxide (O22−). This review is devoted to oxidations of C–H compounds (saturated and aromatic hydrocarbons) and alcohols with peroxides (hydrogen peroxide, tert-butyl hydroperoxide) catalyzed by complexes of transition and nontransition metals containing innocent and noninnocent ligands. In many cases, the oxidation is induced by hydroxyl radicals. The mechanisms of the formation of hydroxyl radicals from H2O2 under the action of transition (iron, copper, vanadium, rhenium, etc.) and nontransition (aluminum, gallium, bismuth, etc.) metal ions are discussed. It has been demonstrated that the participation of the second hydrogen peroxide molecule leads to the rapture of O–O bond, and, as a result, to the facilitation of hydroxyl radical generation. The oxidation of alkanes induced by hydroxyl radicals leads to the formation of relatively unstable alkyl hydroperoxides. The data on regioselectivity in alkane oxidation allowed us to identify an oxidizing species generated in the decomposition of hydrogen peroxide: (hydroxyl radical or another species). The values of the ratio-of-rate constants of the interaction between an oxidizing species and solvent acetonitrile or alkane gives either the kinetic support for the nature of the oxidizing species or establishes the mechanism of the induction of oxidation catalyzed by a concrete compound. In the case of a bulky catalyst molecule, the ratio of hydroxyl radical attack rates upon the acetonitrile molecule and alkane becomes higher. This can be expanded if we assume that the reactions of hydroxyl radicals occur in a cavity inside a voluminous catalyst molecule, where the ratio of the local concentrations of acetonitrile and alkane is higher than in the whole reaction volume. The works of the authors of this review in this field are described in more detail herein.

show abstract

Mechanistic studies on versatile metal-assisted hydrogen peroxide activation processes for biomedical and environmental incentives

Cited by 61 publications

References 303 publications

Engineering of relevant photodynamic processes through structural modifications of metallotetrapyrrolic photosensitizers

Engineering of relevant photodynamic processes through structural modifications of metallotetrapyrrolic photosensitizers

Production of Liquid Solar Fuels and Their Use in Fuel Cells

Metal Complexes Containing Redox-Active Ligands in Oxidation of Hydrocarbons and Alcohols: A Review

Contact Info

Product

Resources

About