The synthesis and synergistic catalysis of iron phthalocyanine and its graphene-based axial complex for enhanced oxygen reduction

Guo, Jia; Yan, Xiaomei; Liu, Qin; Li, Qiang; Xu, Xiao; Kang, Longtian; Cao, Zhanmin; Chai, Guoliang; Chen, Jun; Wang, Yaobing; Yao, Jiannian

doi:10.1016/j.nanoen.2018.02.026

Cited by 148 publications

(92 citation statements)

References 50 publications

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“…12a). The outstanding durability of FeAB-O for ORR can be attributed to the high dispersity and stability of the O-FeN 4 sites 17,45 . No current oscillation was observed in FeAB-O when methanol is added ( Supplementary Fig.…”

Section: Ab Inmentioning

confidence: 99%

Iron phthalocyanine with coordination induced electronic localization to boost oxygen reduction reaction

et al. 2020

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Iron phthalocyanine (FePc) is a promising non-precious catalyst for the oxygen reduction reaction (ORR). Unfortunately, FePc with plane-symmetric FeN 4 site usually exhibits an unsatisfactory ORR activity due to its poor O 2 adsorption and activation. Here, we report an axial Fe-O coordination induced electronic localization strategy to improve its O 2 adsorption, activation and thus the ORR performance. Theoretical calculations indicate that the Fe-O coordination evokes the electronic localization among the axial direction of O-FeN 4 sites to enhance O 2 adsorption and activation. To realize this speculation, FePc is coordinated with an oxidized carbon. Synchrotron X-ray absorption and Mössbauer spectra validate Fe-O coordination between FePc and carbon. The obtained catalyst exhibits fast kinetics for O 2 adsorption and activation with an ultralow Tafel slope of 27.5 mV dec −1 and a remarkable half-wave potential of 0.90 V. This work offers a new strategy to regulate catalytic sites for better performance.

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Section: Ab Inmentioning

confidence: 99%

Iron phthalocyanine with coordination induced electronic localization to boost oxygen reduction reaction

et al. 2020

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“…Carbon‐supported binuclear‐cobalt phthalocyanine (bi‐CoPc/C) has been prepared in the same manner . Note that in some rare occasions, specific SACs can also be prepared by the combination of these two procedures …”

Section: Sample Preparationmentioning

confidence: 99%

“…In recent years, SACs have also found significant applications in electrochemical energy conversion and storage, in particular, ORR, OER, HER, and CO 2 RR, and the results suggest that the supporting substrates such as carbon‐based materials not only provide anchoring sites for the single metal atoms, offer good electrical conductance with the graphitic skeletons, but also manipulate the charge density and electronic structure of the metal atoms because of strong interfacial interactions between the metal atoms and adjacent carbon atoms. Such attributes may be exploited for the enhancement of the electrocatalytic performance due to generation of an increasing number of active sites.…”

Section: Introductionmentioning

confidence: 99%

Carbon‐Supported Single Atom Catalysts for Electrochemical Energy Conversion and Storage

2018

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Single atoms of select transition metals supported on carbon substrates have emerged as a unique system for electrocatalysis because of maximal atom utilization (≈100%) and high efficiency for a range of reactions involved in electrochemical energy conversion and storage, such as the oxygen reduction, oxygen evolution, hydrogen evolution, and CO reduction reactions. Herein, the leading strategies for the preparation of single atom catalysts are summarized, and the electrocatalytic performance of the resulting samples for the various reactions is discussed. In general, the carbon substrate not only provides a stabilizing matrix for the metal atoms, but also impacts the electronic density of the metal atoms due to strong interfacial interactions, which may lead to the formation of additional active sites by the adjacent carbon atoms and hence enhanced electrocatalytic activity. This necessitates a detailed understanding of the material structures at the atomic level, a critical step in the construction of a relevant structural model for theoretical simulations and calculations. Finally, a perspective is included highlighting the promises and challenges for the future development of carbon-supported single atom catalysts in electrocatalysis.

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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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The synthesis and synergistic catalysis of iron phthalocyanine and its graphene-based axial complex for enhanced oxygen reduction

Cited by 148 publications

References 50 publications

Iron phthalocyanine with coordination induced electronic localization to boost oxygen reduction reaction

Iron phthalocyanine with coordination induced electronic localization to boost oxygen reduction reaction

Carbon‐Supported Single Atom Catalysts for Electrochemical Energy Conversion and Storage

Biomimetic complexes‐graphene composites for redox processes

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