scholarly journals (Photo)electrocatalysis of molecular oxygen reduction by S-doped graphene decorated with a star-shaped oligothiophene

Nanoscale ◽  
2019 ◽  
Vol 11 (15) ◽  
pp. 7335-7346 ◽  
Author(s):  
Anastasios Stergiou ◽  
Dimitris K. Perivoliotis ◽  
Nikos Tagmatarchis
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Molecular Oxygen ◽  
Electrocatalytic Activity ◽  
Reduction Reaction ◽  
Doped Graphene

The high (photo)electrocatalytic activity and stability towards the oxygen reduction reaction of a star-shaped oligothiophene/S-doped graphene ensemble is presented.

scholarly journals Charge transfer, bonding conditioning and solvation effect in the activation of the oxygen reduction reaction on unclustered graphitic-nitrogen-doped graphene

2015 ◽  
Vol 17 (25) ◽  
pp. 16238-16242 ◽  
Author(s):  
Adolfo Ferre-Vilaplana ◽  
Enrique Herrero
Keyword(s):  
Charge Transfer ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Molecular Oxygen ◽  
Reduction Reaction ◽  
Solvation Effect ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

Under certain conditions and on specific sites the monodentate associative chemisorption of molecular oxygen on graphitic-nitrogen-doped graphene would be favorable.

Easy synthesis of N-doped graphene by milling exfoliation with electrocatalytic activity towards the Oxygen Reduction Reaction (ORR)

2017 ◽  
Vol 42 (51) ◽  
pp. 30383-30388 ◽  
Author(s):  
Juan C. Carrillo-Rodríguez ◽  
Ivonne L. Alonso-Lemus ◽  
A.A. Siller-Ceniceros ◽  
E. Martínez G ◽  
Pedro Pizá-Ruiz ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Electrocatalytic Activity ◽  
Reduction Reaction ◽  
Doped Graphene

Electrochemical behavior of a number of bispyridyl-substituted porphyrins and their electrocatalytic activity in molecular oxygen reduction reaction

2016 ◽  
Vol 20 (05) ◽  
pp. 615-623 ◽  
Author(s):  
Minh N. Do ◽  
Nadezhda M. Berezina ◽  
Mikhail I. Bazanov ◽  
Sabir S. Gyseinov ◽  
Mikhail M. Berezin ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Molecular Oxygen ◽  
Electrocatalytic Activity ◽  
Reduction Reaction ◽  
Central Metal ◽  
Axial Ligands ◽  
Active Layers ◽  
Half Wave ◽  
Electrochemical Parameters

The investigation of electrochemical properties of active layers containing 5,15-bis(pyrid-3-yl)-3,7,13,17-tetramethyl-2,8,12,18-tetraethylporphine, [5,15-bis(pyrid-3-yl)-3,7,13,17-tetramethyl-2,8,12, 18-tetraethylporphinato]cobalt(II), bispyridine[5,15-bis(pyrid-3-yl)-3,7,13,17-tetramethyl-2,8,12,18-tetraethylporphinato]cobalt(III), [5,15-bis(pyrid-4-yl)-3,7,13,17-tetramethyl-2,8,12,18-tetraethylporphinato]cobalt(II) and bispyridine[5,15-bis(pyrid-4-yl)-3,7,13,17-tetramethyl-2,8,12,18-tetraethylporphinato]cobalt(III) in 0.1 M KOH aqueous solution has been carried out by cyclic voltammetry. The potential ranges of redox processes related to the transformation of the porphyrin macrocycle, pyridyl substituents and central metal have been established. The electrochemical parameters of oxygen electroreduction reaction (the half-wave potential — E[Formula: see text](O[Formula: see text]), the maximum potential — E[Formula: see text](O[Formula: see text]), the current density — j, the activation energy — Eact) have been determined. It was shown that all porphyrins exhibit the catalytic activity. The electroreduction process of oxygen on electrode with the porphyrin-ligand occurs via 2-electron mechanism to give hydrogen peroxide ion HO2-, and on ones with the cobalt porphyrins — via parallel-sequential pathway including 2-electron and 4-electron processes to give HO2-, OH-. The presence of pyridine axial ligands in Co-complexes leads to a significant increase of the electrocatalytic activity in molecular oxygen reduction reaction.

scholarly journals Functional molecule guided evolution of MnOx nanostructure patterns on N-graphene and their oxygen reduction activity

RSC Advances ◽  
2019 ◽  
Vol 9 (48) ◽  
pp. 27945-27952
Author(s):  
Nibedita Behera ◽  
Swarna P. Mantry ◽  
Biswaranjan D. Mohapatra ◽  
Rajesh K. Behera ◽  
Kumar S. K. Varadwaj
Keyword(s):  
Benzoic Acid ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Electrocatalytic Activity ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Trimesic Acid ◽  
Reduction Activity ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

In this work, we systematically followed the growth of MnOx nanostructures on trimesic acid (TMA)/benzoic acid (BA) functionalised nitrogen doped graphene (NG) and studied their electrocatalytic activity towards oxygen reduction reaction (ORR).

Sign in / Sign up

Export Citation Format

Share Document