Electrocatalytic study of a 1,10-phenanthroline–cobalt(<scp>ii</scp>) metal complex catalyst supported on reduced graphene oxide towards oxygen reduction reaction

Ren, Cancan; Li, Haibo; Li, Rui; Xu, Shuling; Wei, Denghu; Kang, Wenjun; Wang, Lei; Jia, Liping; Yang, Bingchuan; Liu, Jifeng

doi:10.1039/c6ra04078k

Cited by 27 publications

(22 citation statements)

References 39 publications

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“…However, Pt is expensive hindering its large-scale commercialization in electrochemical conversion technologies such as fuel cells and metal-air batteries. 3 Thus, researchers have made great efforts to replace Pt-based catalysts with non-precious metal ones for enabling the practical application of the technologies, and these metals have been considered for both, cathode [4][5][6] and anode of fuel cells. [7][8][9] Regarding non-precious metal electrocatalysts, many types have been explored, including metal oxides, organometallic complexes, and so on.…”

Section: Introductionmentioning

confidence: 99%

Nanoparticles of Fe2O3 and Co3O4 as Efficient Electrocatalysts for Oxygen Reduction Reaction in Acid Medium

Alves

Santos

Viégas

et al. 2019

J. Braz. Chem. Soc.

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This paper presents a comparative study about the oxygen reduction reaction (ORR) catalyzed by nanoparticles of Fe 2 O 3 and Co 3 O 4 applied on the surface of glassy carbon electrodes (GCE). The nanoparticles were synthesized using the modified polymeric precursor method (Pechini). These two nanomaterials were characterized by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) techniques. The estimated average particle sizes were 21 and 31 nm for Fe 2 O 3 and Co 3 O 4 , respectively. Electrochemical impedance spectroscopy (EIS) showed that Fe 2 O 3 /GCE has lower charge transfer resistance than Co 3 O 4 /GCE. The surface electrochemistry of both Fe 2 O 3 /GCE and Co 3 O 4 /GCE was studied in the solution free of O 2 , and their corresponding reaction mechanisms were analyzed. The electrocatalytic ORR activities of these two catalysts were studied by cyclic voltammetry (CV) and rotating disk electrode (RDE) in acidic solution. The results obtained by RDE indicated that both Fe 2 O 3 /GCE and Co 3 O 4 /GCE can catalyze the ORR with a dominating 2-electron transfer process to produce H 2 O 2 , using a potential of −0.8 V. These kinetic results indicate that Fe 2 O 3 /GCE is more efficient than Co 3 O 4 /GCE in terms of ORR. Considering the low cost of these two non-noble metal catalysts, they may be used as viable alternatives for ORR electrocatalysts.

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Section: Introductionmentioning

confidence: 99%

Nanoparticles of Fe2O3 and Co3O4 as Efficient Electrocatalysts for Oxygen Reduction Reaction in Acid Medium

Alves

Santos

Viégas

et al. 2019

J. Braz. Chem. Soc.

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“…Bottom-up design of small molecule-based ORR catalysts provides important knowledge for the understanding of active site and the material improvement also in the development of heterogeneous carbon-based material. ORR catalytic activity of small molecules has been studied since the first report in 1964 on the cobalt phthalocyanine complex 21 , and various metal complexes of porphyrin, phthalocyanine, 1,10phenanthroline and their derivatives have been investigated as ORR catalysts [22][23][24][25] . Metal-free small molecule-based ORR catalysts have been also reported in methylviologen 26 and porphyrin derivatives 25,27 , etc.…”

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confidence: 99%

Metal-free electrocatalysts for oxygen reduction reaction based on trioxotriangulene

et al. 2019

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Development of a structurally well-defined small molecule with a high oxygen reduction reaction catalytic activity is a key approach for the bottom-up design of a metal-free carbonbased catalysts for metal-air batteries and fuel cells. In this paper, we characterize the oxygen reduction reaction activities of trioxotriangulene derivatives, which are stable neutral radicals with high redox abilities, via rotating disk electrode measurements in alkaline aqueous solution. Among trioxotriangulene derivatives having various substituent groups, N-piperidinyl-substituted derivative mixed with acetylene black shows a high catalytic activity with the two-electron transferring process exceeding other derivatives and quinones. To reveal the correlation between molecular structure and catalytic activity, we discuss substituent effects on the redox ability of trioxotriangulene derivatives, and demonstrate that a molecule with electron-donating groups yields relatively higher catalytic activities.

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“…Compared with the pyrolyzed M-N-C catalyst, the non-pyrolyzed one has advantages in low cost and controllable structures of the as prepared catalysts (Sheelam and Ramanujam, 2018). Many nitrogen ligands have been adopted for the construction of non-pyrolyzed M-N-C catalysts, including macrocycle ligands, such as porphyrins (Banerjee and Nabae, 2019), phthalocyanines (Meng et al, 2019), and metallocorroles (Levy et al, 2015), and also including non-macrocycle ligands, such as phenanthroline (Lu et al, 2015; Ren et al, 2016), bipyridine (Zhao et al, 2018), polypyrrole, polyaniline, etc (Wang et al, 2019). 1,10-phenanthroline (phen) can form the M-N 4 center with transitional metal ions, and often shows high ORR activity toward the four electron pathway (Ren et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Supramolecular Iron Complex Formed Between Nitrogen Riched Phenanthroline Derivative and Iron With Improved Oxygen Reduction Activity in Alkaline Electrolyte

Chu

et al. 2019

Front. Chem.

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In this work, the synthesis and evaluation of a new type non-noble metal oxygen reduction reaction (ORR) catalyst is reported. The catalyst is a complex containing iron ions and multiple N active sites, which displayed excellent oxygen reduction activity in alkaline medium. 2-(2-(4-(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)pyridin-2-yl)pyridin-4-yl)-1H-imidazo[4,5-f][1,10]phenanthroline (PIPhen) was synthesized and used as a ligand to form a rich nitrogen iron coordination complex (Fe-PIPhen), and the complex was then loaded onto the carbon powder to form the target catalyst of Fe-PIPhen/C. The physical characterization of the catalyst was conducted by using Scanning Electron Microscopy (SEM), nitrogen adsorption-desorption and X-ray photoelectron spectroscopy (XPS), Brunauer-Emmett-Teller analysis etc. Electrochemical characterizations were realized by taking cyclic voltammetry (CV), linear sweep voltammetry (LSV) and rotating ring disk electrode (RRDE). The results show that Fe-PIPhen/C possesses the good performance; it exhibits a high electrocatalytic activity, which is mainly via a four electron ORR pathway, with a low hydrogen peroxide yield of 2.58%. And, the average electron transfer number of 3.93 was obtained in alkaline electrolyte. In summary, Fe-PIPhen/C will likely become a promising alternative to Pt catalyst in fuel cell.

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Electrocatalytic study of a 1,10-phenanthroline–cobalt(ii) metal complex catalyst supported on reduced graphene oxide towards oxygen reduction reaction

Abstract: 1,10-Phenanthroline–cobalt(ii) metal-complex supported on rGO exhibited a high efficient four-electron catalytic activity towards ORR.

Cited by 27 publications

References 39 publications

Nanoparticles of Fe2O3 and Co3O4 as Efficient Electrocatalysts for Oxygen Reduction Reaction in Acid Medium

Nanoparticles of Fe2O3 and Co3O4 as Efficient Electrocatalysts for Oxygen Reduction Reaction in Acid Medium

Metal-free electrocatalysts for oxygen reduction reaction based on trioxotriangulene

Supramolecular Iron Complex Formed Between Nitrogen Riched Phenanthroline Derivative and Iron With Improved Oxygen Reduction Activity in Alkaline Electrolyte

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