Facile synthesis of graphene-phthalocyanine composites as oxygen reduction electrocatalysts in microbial fuel cells

Mecheri, Barbara; Ficca, Valerio C.A.; Oliveira, Maida Aysla Costa de; D’Epifanio, Alessandra; Placidi, E.; Arciprete, F.; Licoccia, Silvia

doi:10.1016/j.apcatb.2018.06.031

Cited by 105 publications

(50 citation statements)

References 64 publications

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“…The last catalytic activity of FeTPPc/G than other reports confirms the effect of pyridine substituents, which increase the active sites towards the ORR. In this context, other kinds of FePc/graphene non‐covalent composites such as stabilized FePc on rGO with poly (sodium‐p‐styrenesulfonate), FePc on electrooxidazed G and NG; Binuclear FePc (bi‐FePc) on G nanosheets, FePc‐G sandwich with poly (diallyldimeth‐ammonium chloride) as a stabilizer, tetracumylphenoxy FePc/G, axial complex of FePc/rNG, and FePC/rGO containing of Pt NPs, have been synthesized and evaluated in ORR.…”

Section: Oxygen Reduction Reaction (Orr)mentioning

confidence: 99%

Biomimetic complexes‐graphene composites for redox processes

Mahyari

Hooshmand

Sepahvand

et al. 2020

Applied Organom Chemis

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Biomimetic complexes such as porphyrins, phthalocyanines, and hemins show promising catalytic activities in redox processes. Donor‐acceptor hybrids of these biomimetic macrocyclic complexes with graphene as one of the most critical allotropes of carbon are currently an outstanding scientific frontier. Notably, the composites that consist of these efficient and bio‐inspiring complexes anchored on the surface of the graphene and their widespread applications have gained ever‐increasing interest in the last decade, which expresses their efficiency in practice. Accordingly, this review covers the current status of biomimetic complexes‐graphene composites with particular emphasis on significant signs of their synthesis and characterization also highlighted applications of these composites in academia and industrial redox processes such as oxidation of organic compounds, epoxidation, oxygen reduction reactions, CO2 reduction, and hydrogen evolution reactions.

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Section: Oxygen Reduction Reaction (Orr)mentioning

confidence: 99%

Biomimetic complexes‐graphene composites for redox processes

Mahyari

Hooshmand

Sepahvand

et al. 2020

Applied Organom Chemis

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“…It is not favorable for the long‐term practical operation of FCs. Fortunately, this issue could be circumvented by choosing commercial carbon materials as the support, like carbon spheres, carbon nanotubes and graphene . In 1978, Andrusyova et al .…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Oxygen Reduction Reaction Electrocatalysts FeCo−N−C Derived from Two Metallomacrocycles and N‐doped Porous Carbon Materials

et al. 2020

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N‐doped porous carbon (NPC) materials are beneficial to anchor desirable active sites for the oxygen reduction reaction (ORR). Herein, FeCo−N−C electrocatalysts with large specific surface areas and 3D interconnected hierarchical porous structures were prepared by pyrolysis of NPC materials with two metallomacrocycles, including iron phthalocyanine (FePc) and vitamin B12 (VB12). The onset potential (Eonset) of FePc(3)VB12(1)/NPC (900) is 0.934 V (vs. RHE), which is larger than that of commercial Pt/C (0.923 V vs. RHE). The half‐wave potential (E1/2) of FePc(3)VB12(1)/NPC (900) is 0.838 V (vs. RHE), which is almost the same with that of Pt/C electrocatalyst (0.839 V vs. RHE). Furthermore, the FePc(3)VB12(1)/NPC (900) also exhibits better durability and methanol tolerance relative to Pt/C in 0.1 M KOH solution. Such outstanding ORR performance is mainly attributed to the high proportion of both pyridinic N and graphitic N in FePc(3)VB12(1)/NPC (900) electrocatalyst.

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“…Bioelectrochemical Systems (BESs) are classified as one of the most attractive renewable technology for energy conversion [1,2]. Among the various BESs, Microbial Fuel Cells (MFCs) allow simultaneous electrical energy harvesting and wastewater treatment [1,[3][4][5][6][7] by the catalytic action of microorganisms, which oxidize the organic matter in the waste at the anode side of the cell to produce carbon dioxide, protons and electrons. Protons and electrons migrate through an external circuit and recombine with oxygen at the cathode side, producing water [1,4].…”

Section: Introductionmentioning

confidence: 99%

“…In this context, many studies have been addressed to develop alternative catalysts to noble metals (i.e., platinum), which are expensive, rare and sensitive to poisoning [3,8]. Platinum-group-metal-free (PGM-free) catalysts represent a very promising category of new catalysts due to their tuneable composition based on transition metals (Fe, Ni, Co, Mn, Cu) supported on carbon substrates (graphene, graphene oxide, carbon nanotubes, black pearls, carbon black and biochar), which are also doped with heteroatoms (N, P, S, O) [12][13][14][15][16][17][18][19][20] Among PGM-free catalysts, metal-nitrogen-carbon (M-N-C) materials have been widely investigated toward ORR in acidic and alkaline pH, whereas the study of ORR in neutral media still accounts for few reports [6,8,12,21,22].…”

Section: Introductionmentioning

confidence: 99%

“…So far, attention has been paid to the development of Fe-N-C catalysts, and the efficiency of active sites in Fe-N-C composites has been ascribed to the coordination of iron to nitrogen heteroatoms in FeNx structure, which cause a beneficial effect on the direct conversion of oxygen to water via a four-electron mechanism [1,8,10,18]. In this context, the activation of carbon substrates via N-doping is crucial for stabilizing the coordination of transition metal, besides helping to maintain a high density of FeNx active sites for ORR and avoid the aggregation phenomena of the catalyst [3,23,24].…”

Section: Introductionmentioning

confidence: 99%

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Iron-Based Electrocatalysts for Energy Conversion: Effect of Ball Milling on Oxygen Reduction Activity

et al. 2020

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In this work, we synthesized new materials based on Fe(II) phthalocyanine (FePc), urea and carbon black pearls (BP), called Fe-N-C, as electrocatalysts for the oxygen reduction reaction (ORR) in neutral solution. The electrocatalysts were prepared by combining ball-milling and pyrolysis treatments, which affected the electrochemical surface area (ECSA) and electrocatalytic activity toward ORR, and stability was evaluated by cyclic voltammetry and chronoamperometry. Ball-milling allowed us to increase the ECSA, and the ORR activity as compared to the Fe-N-C sample obtained without any ball-milling. The effect of a subsequent pyrolysis treatment after ball-milling further improved the electrocatalytic stability of the materials. The set of results indicated that combining ball-milling time and pyrolysis treatments allowed us to obtain Fe-N-C catalysts with high catalytic activity toward ORR and stability which makes them suitable for microbial fuel cell applications.

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Facile synthesis of graphene-phthalocyanine composites as oxygen reduction electrocatalysts in microbial fuel cells

Cited by 105 publications

References 64 publications

Biomimetic complexes‐graphene composites for redox processes

Biomimetic complexes‐graphene composites for redox processes

Highly Efficient Oxygen Reduction Reaction Electrocatalysts FeCo−N−C Derived from Two Metallomacrocycles and N‐doped Porous Carbon Materials

Iron-Based Electrocatalysts for Energy Conversion: Effect of Ball Milling on Oxygen Reduction Activity

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