Enhancing oxygen reduction reaction performance via CNTs/graphene supported iron protoporphyrin IX: A hybrid nanoarchitecture electrocatalyst

Kumar, Anuj; Yasin, Ghulam; Vashistha, Vinod Kumar; Das, Deepak Kumar; Rehman, Majeed Ur; Iqbal, Rashid; Mo, Zhousheng; Nguyen, Tuan Anh; Slimani, Y.; Nazir, M. Tariq; Zhao, Wei

doi:10.1016/j.diamond.2021.108272

Cited by 56 publications

(5 citation statements)

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“…[ 28 ] The two diffraction patterns around 2 θ = 25.8°, 42.4°, 44.3°, and 77.5° correspond to graphite crystallites related to the lattice plane (0 0 2), (1 0 0), (1 0 1), and (1 1 0), respectively. [ 29 ] The calcined and spent catalysts display the diffraction peaks at 2 θ angle of 44°, which are attributed to χ ‐Fe 5 C 2 or ɛ ‐Fe 2 C. [ 30 ] Iron molybdenum oxide (Fe 2 (MoO 4 ) 3 ) peaks reported as the mixture of haematite and molybdenum trioxide can be detected at 2 θ = 13.7°, 15.3°, 20.4°, and 21.7°. [ 31 ] MoO 3 and K 2 Mo 4 O 13 (potassium molybdenum oxide) peaks were detected at 2 θ = 12.7°, 46.2°, 49.2°, 52.8°, 64.8°, 69.3° and 2 θ = 19.4°, 22.9°, 23.3°, 24.9°, 25.6°, 26.5°, 27.3°, 30.2°, 37.5°, and 38.4°, respectively, thereby confirming the promoters' presence in the calcined catalyst.…”

Section: Resultsmentioning

confidence: 99%

“…[28] The two diffraction patterns around 2θ = 25.8 , 42.4 , 44.3 , and 77.5 correspond to graphite crystallites related to the lattice plane (0 0 2), (1 0 0), (1 0 1), and (1 1 0), respectively. [29] The calcined and spent catalysts display the diffraction peaks at 2θ angle of 44 , which are attributed to χ-Fe 5 C 2 or ϵ-Fe 2 C. [30] Iron molybdenum oxide (Fe 2 (MoO 4 ) 3 ) peaks reported as the mixture of haematite and molybdenum trioxide can be detected at 2θ = 13.7 , 15.3 , 20.4 , and 21.7 . [31] promoters' presence in the calcined catalyst.…”

Section: Catalyst Characterizationmentioning

confidence: 99%

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Comprehensive kinetic study for Fischer–Tropsch reaction over KMoFe/CNTs nano‐structured catalyst

et al. 2023

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Section: Resultsmentioning

confidence: 99%

Section: Catalyst Characterizationmentioning

confidence: 99%

Comprehensive kinetic study for Fischer–Tropsch reaction over KMoFe/CNTs nano‐structured catalyst

et al. 2023

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“…CNTs have large specific surface area, abundant pore size and unique hexagonal carbon framework, which can effectively distribute active sites, prohibit agglomeration and facilitate electron transport, and have particular prospects in the field of electrocatalysis. [102,138] For instance, Cao et al coated two cobalt porphyrins on carbon nanotubes to prepare composite catalysts, with both exhibiting high ORR catalytic activity and good long-term stability to successfully drive a zinc-air battery. [139] By introducing a certain extra linkage that can covalently link the metalloporphyrin and the nanotubes, the adsorption and activation of oxygen on the catalytic layer can be altered and the ORR properties are often observed to be improved.…”

Section: Carbon Support Impacts On Porphyrin-based Catalytic Orr Perf...mentioning

confidence: 99%

Section: Carbon Support Impacts On Porphyrin‐based Catalytic Orr Perf...mentioning

confidence: 99%

Meso‐substituted Metalloporphyrin‐based Composites for Electrocatalytic Oxygen Reduction Reactions

Yuan

George

et al. 2023

ChemNanoMat

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Metalloporphyrins have been regarded as one of the most promising electrocatalysts for oxygen reduction reactions (ORRs) due to their ease of structure modification and the robust coordinated M−N4 environment. However, the electrocatalytic activity, selectivity and stability of the metalloporphyrin‐based composite catalysts are often reported to be much poorer than those of the Pt‐based materials, arousing researchers to devote to exploring a thorough understanding of the relationship between the catalyst structures and ORR performance/mechanisms. Here we will review the design of meso‐positioned porphyrin structures from the aspects of selection of central metal ion species in both monometallic and bimetallic molecules, and modulation of peripheral functional substituents to introduce beneficial effects, including electron affinity, steric effects, interfacial charge states and proton management. Influences from different carbon materials as the support for composite catalysts as well as the electrolytes on oxygen reduction properties will be briefly illustrated before presenting the perspectives and insights for future works in conclusion remarks. We hope that this Review will serve as a roadmap for advancing the insights of the molecular structural and substrate morphological factors impacting ORR properties with the ultimate goal of developing and improving novel metalloporphyrins as efficient and durable electrocatalysts to champion the precious Pt/C.

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“…On the other hand, the researchers also found that the transmittance of graphene decreases linearly as the layers increase. Graphene is being considered as a potential material for transparent applications in the future, including solar cells, batteries, smart windows, and other optoelectronic devices due to its superior optical properties [43], [64], [66][67][68][69].…”

Section: Introductionmentioning

confidence: 99%

Graphene derivatives reinforced metal matrix nanocomposite coatings: A review

et al. 2022

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Due to the extraordinary mechanical, thermal, and electrical properties of graphene, graphene oxide (GO), and reduced graphene oxide (rGO), these materials have the potential to become ideal nanofillers in the electrodeposited nanocomposite coatings. This article provides an overview of literature on the improvements of properties associated with graphene, GO, and rGO-reinforced coatings, along with the processing parameters and mechanisms that would lead to these improvements in electrodeposited metal matrix nanocomposite coatings, where those affected the microstructural, mechanical, tribological, and anti-corrosion characteristics of coatings. The challenges associated with the electroplating of nanocomposite coatings are addressed. The results of this survey indicated that adding graphene into the plating bath led to a finer crystalline size in the composite coating due to increasing the potential development of specific crystalline planes and the number of heterogeneous nucleation sites. This consequently caused an improvement in hardness and in tribological properties of the electrodeposited coating. In graphene reinforced metallic composites, the severe adhesive wear mechanism for pure metallic coatings was replaced by abrasive wear and slight adhesive wear, where the formation of a tribolayer at the contact surface increased the wear resistance and decreased friction coefficient. Furthermore, superhydrophobicity and smaller grain size resulted from embedding graphene in the coating. It also provided a smaller cathode/anode surface ratio against localized corrosion, which has been found to be the main anti-corrosion mechanism for graphene/metal coating. Lastly, the study offers a discussion of the areas of research that need further attention to make these high-performance nanocomposite coatings more suitable for industrial applications.

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Enhancing oxygen reduction reaction performance via CNTs/graphene supported iron protoporphyrin IX: A hybrid nanoarchitecture electrocatalyst

Cited by 56 publications

References 54 publications

Comprehensive kinetic study for Fischer–Tropsch reaction over KMoFe/CNTs nano‐structured catalyst

Comprehensive kinetic study for Fischer–Tropsch reaction over KMoFe/CNTs nano‐structured catalyst

Meso‐substituted Metalloporphyrin‐based Composites for Electrocatalytic Oxygen Reduction Reactions

Graphene derivatives reinforced metal matrix nanocomposite coatings: A review

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