Investigation of the structural characterization and reversible oxygenation mechanism of oxygenated cobalt–3-(4-thiazolyl)-<scp>l</scp>-alanine and cobalt–histidine complexes using electrospray tandem mass spectrometry

Fu, Jihong; Fu, Pei; Yue, Fan; Zhang, Xulong; Wang, Jide; Zhang, Xincun; Li, Junfang

doi:10.1039/c5ay00246j

Cited by 4 publications

(2 citation statements)

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“…According to the concept of oxygen adducts and the literature, ,− all forms of oxygen that may be involved are listed in Table . In recent years, the presence of these oxygenated species has been directly verified by electrospray tandem mass spectrometry. , …”

Section: Results and Discussionmentioning

confidence: 99%

“…In recent years, the presence of these oxygenated species has been directly verified by electrospray tandem mass spectrometry. 34,35 If O 2 is reduced to H 2 O 2 (P3) or H 2 O (P4) by cobalt(II), hydrogen ions are consumed, causing the pH of the solution to rise. The pH drop is only possible when oxygen is reduced in a form that does not increase hydroxide ions.…”

Section: [ ] +[ ] → [ ] + [ ]mentioning

confidence: 99%

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Performance of Several Cobalt–Amine Denitration Solutions and Their Catalytic Regeneration by Graphene

Jiang

Wei

2019

Environ. Sci. Technol.

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Little attention has been focused on the use of cobalt(II)− amine chelates for the absorption of nitric oxide (NO) in flue gas, and research on the regeneration of cobalt denitration solutions is relatively rare.To supplement this research gap, several promising ethylenediamine derivatives were screened out. They are N-(2-hydroxyethyl)ethylenediamine, 1,2-propanediamine, and 1,2-cyclohexanediamine. These cobalt(II)−amine solutions are effective for denitration and have not been reported yet. However, they are also easily oxidized to the corresponding cobalt(III) species. In the presence of a nanocarbon material, cobalt(III) components are reduced to cobalt(II) components and release oxygen by reacting with acids. The effects of solution pH, temperature, and graphene dosage on the regeneration process were investigated. A proper addition of graphene as a catalyst contributes to the progress of regeneration. Catalytic mechanisms and regeneration performance have been discussed as much as possible. These mechanisms are related to the oxidation reactions and oxygenated species of cobalt complexes. The carbon material here acts as a catalyst for adsorbing cobalt chelates and accelerating charge transfer in the oxygen evolution reaction.

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Section: Results and Discussionmentioning

confidence: 99%

Section: [ ] +[ ] → [ ] + [ ]mentioning

confidence: 99%

Performance of Several Cobalt–Amine Denitration Solutions and Their Catalytic Regeneration by Graphene

Jiang

Wei

2019

Environ. Sci. Technol.

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Thermodynamics of complex formation in dimethylsulfoxide: The case of Co(II) complexes with nitrogen donor ligands and their O2 adducts

Melchior

Tolazzi

2019

Inorganica Chimica Acta

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A “turn-on” fluorescent probe for glutathione detection based on the polyethylenimine-carbon dots-Cu2+ system

Zhang

Duan

et al. 2019

Journal of Photochemistry and Photobiology B: Biology

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Investigation of the structural characterization and reversible oxygenation mechanism of oxygenated cobalt–3-(4-thiazolyl)-l-alanine and cobalt–histidine complexes using electrospray tandem mass spectrometry

Abstract: A new ESI-MS method was developed to identify oxygenated species in Co–Tza formed by the uptake of dioxygen. The structures and fragmentation mechanisms of Co–Tza and Co–His were deduced.

Cited by 4 publications

References 26 publications

Performance of Several Cobalt–Amine Denitration Solutions and Their Catalytic Regeneration by Graphene

Performance of Several Cobalt–Amine Denitration Solutions and Their Catalytic Regeneration by Graphene

Thermodynamics of complex formation in dimethylsulfoxide: The case of Co(II) complexes with nitrogen donor ligands and their O2 adducts

A “turn-on” fluorescent probe for glutathione detection based on the polyethylenimine-carbon dots-Cu2+ system

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