Oxygen Reduction on Carbon-Supported Metallophthalocyanines and Metalloporphyrins

Zagal, José H.; Kruusenberg, Ivar; Kisand, Vambola; Recio, Javier; Muñoz, K.; Venegas, Ricardo

doi:10.1016/b978-0-12-409547-2.13572-3

Cited by 10 publications

(5 citation statements)

References 81 publications

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“… 11 , 21 − 23 In the past decade, extensive work has been carried out to prepare M-N-C electrocatalysts, e.g., by pyrolysis of nitrogen-containing compounds, carbon sources, and transition-metal salts. 24 − 26 Nonetheless, most of them still show inferior ORR performance compared to Pt-based catalysts, primarily because of the lower surface density of catalytically active sites and sluggish ORR kinetics. 27 It has been well established that the incorporation of M-N x moieties within conductive carbon matrices (e.g., via metal porphyrins and phthalocyanines) leads to M-N x -containing electrocatalysts for the ORR.…”

Section: Introductionmentioning

confidence: 99%

“… 27 It has been well established that the incorporation of M-N x moieties within conductive carbon matrices (e.g., via metal porphyrins and phthalocyanines) leads to M-N x -containing electrocatalysts for the ORR. 26 , 28 − 36 For example, iron phthalocyanine (FePc) materials have been treated by high-temperature pyrolysis along with carbide-derived carbon for the preparation of an Fe-N 4 complex, which exhibits improved ORR activity. 29 Cheng and co-workers prepared bifunctional electrocatalysts for the ORR and OER by atomically dispersed FePc sites anchoring on defective carbon nanosheets.…”

Section: Introductionmentioning

confidence: 99%

“…It has been experimentally and theoretically established that the transition-metal and nitrogen-doped carbon materials (M-N-C) are promising candidates for the ORR and OER due to their earth-abundant content, low price, and promising electrocatalytic properties. ,− In the past decade, extensive work has been carried out to prepare M-N-C electrocatalysts, e.g., by pyrolysis of nitrogen-containing compounds, carbon sources, and transition-metal salts. − Nonetheless, most of them still show inferior ORR performance compared to Pt-based catalysts, primarily because of the lower surface density of catalytically active sites and sluggish ORR kinetics . It has been well established that the incorporation of M-N x moieties within conductive carbon matrices (e.g., via metal porphyrins and phthalocyanines) leads to M-N x -containing electrocatalysts for the ORR. ,− For example, iron phthalocyanine (FePc) materials have been treated by high-temperature pyrolysis along with carbide-derived carbon for the preparation of an Fe-N 4 complex, which exhibits improved ORR activity . Cheng and co-workers prepared bifunctional electrocatalysts for the ORR and OER by atomically dispersed FePc sites anchoring on defective carbon nanosheets .…”

Section: Introductionmentioning

confidence: 99%

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Bifunctional Oxygen Electrocatalysis on Mixed Metal Phthalocyanine-Modified Carbon Nanotubes Prepared via Pyrolysis

Kumar

Kisand

Kozlova

et al. 2021

ACS Appl. Mater. Interfaces

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Non-precious-metal catalysts are promising alternatives for Pt-based cathode materials in low-temperature fuel cells, which is of great environmental importance. Here, we have investigated the bifunctional electrocatalytic activity toward the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) of mixed metal (FeNi; FeMn; FeCo) phthalocyanine-modified multiwalled carbon nanotubes (MWCNTs) prepared by a simple pyrolysis method. Among the bimetallic catalysts containing nitrogen derived from corresponding metal phthalocyanines, we report the excellent ORR activity of FeCoN-MWCNT and FeMnN-MWCNT catalysts with the ORR onset potential of 0.93 V and FeNiN-MWCNT catalyst for the OER having E OER = 1.58 V at 10 mA cm –2 . The surface morphology, structure, and elemental composition of the prepared catalysts were examined with scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The FeCoN-MWCNT and FeMnN-MWCNT catalysts were prepared as cathodes and tested in anion-exchange membrane fuel cells (AEMFCs). Both catalysts displayed remarkable AEMFC performance with a peak power density as high as 692 mW cm –2 for FeCoN-MWCNT.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Bifunctional Oxygen Electrocatalysis on Mixed Metal Phthalocyanine-Modified Carbon Nanotubes Prepared via Pyrolysis

Kumar

Kisand

Kozlova

et al. 2021

ACS Appl. Mater. Interfaces

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“…Among the different metal macrocycles, Fe-N 4 systems supported on carbon materials have shown a good performance for oxygen reduction in air-cathode MFC [112]. The intrinsic activity of Fe-N 4 sites is beneficial to ORR through the synergistic effects between Fe-N 4 moieties and their interaction with carbon support [113].…”

Section: Molecular Catalystsmentioning

confidence: 99%

Platinum Group Metal-Free Catalysts for Oxygen Reduction Reaction: Applications in Microbial Fuel Cells

et al. 2020

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Scientific and technological innovation is increasingly playing a role for promoting the transition towards a circular economy and sustainable development. Thanks to its dual function of harvesting energy from waste and cleaning up waste from organic pollutants, microbial fuel cells (MFCs) provide a revolutionary answer to the global environmental challenges. Yet, one key factor that limits the implementation of larger scale MFCs is the high cost and low durability of current electrode materials, owing to the use of platinum at the cathode side. To address this issue, the scientific community has devoted its research efforts for identifying innovative and low cost materials and components to assemble lab-scale MFC prototypes, fed with wastewaters of different nature. This review work summarizes the state-of the-art of developing platinum group metal-free (PGM-free) catalysts for applications at the cathode side of MFCs. We address how different catalyst families boost oxygen reduction reaction (ORR) in neutral pH, as result of an interplay between surface chemistry and morphology on the efficiency of ORR active sites. We particularly review the properties, performance, and applicability of metal-free carbon-based materials, molecular catalysts based on metal macrocycles supported on carbon nanostructures, M-N-C catalysts activated via pyrolysis, metal oxide-based catalysts, and enzyme catalysts. We finally discuss recent progress on MFC cathode design, providing a guidance for improving cathode activity and stability under MFC operating conditions.

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“…5,12,13 From various macrocycle-based cathode catalysts, iron phthalocyanine (FePc) is reported as one of the most prominent catalyst precursors to synthesise NNMCs. 12,14,15 Baranton et al 16,17 revealed that FePc/C catalyst showed better ORR activity in presence of methanol compared with Pt catalyst.…”

mentioning

confidence: 99%

Lead and Nitrogen Co-Doped Multi-Walled Carbon Nanotube Electrocatalyst for Oxygen Reduction Reaction

Zarmehri,

Raudsepp,

Šmits

et al. 2023

J. Electrochem. Soc.

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The electrocatalysis of oxygen reduction reaction (ORR) on lead and nitrogen co-doped multi-walled carbon nanotube (Pb/N/MWCNT) composite catalyst has been investigated in the neutral, acidic and alkaline media. The mixture of lead phthalocyanine (PbPc) and MWCNTs was pyrolysed in nitrogen atmosphere to achieve co-doping of lead and nitrogen. The successful co-doping as well as formation of Pb nanoparticles were confirmed with the use of various physical and surface characterisation methods such as scanning and transmission electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy and X-ray diffraction analysis. This work brings forth the electrocatalytic effect of Pb and nitrogen co-doping of carbon by a detailed electrochemical analysis using rotating disk electrode (RDE) method. The Pb and nitrogen co-doped MWCNT material demonstrate a reasonable electrocatalytic ORR activity in acidic, neutral and alkaline media. The results indicate great potential of Pb to be employed in electrocatalyst design as co-doping agent to achieve superior cathode catalysts for microbial, proton and anion exchange membrane fuel cells.

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Oxygen Reduction on Carbon-Supported Metallophthalocyanines and Metalloporphyrins

Cited by 10 publications

References 81 publications

Bifunctional Oxygen Electrocatalysis on Mixed Metal Phthalocyanine-Modified Carbon Nanotubes Prepared via Pyrolysis

Bifunctional Oxygen Electrocatalysis on Mixed Metal Phthalocyanine-Modified Carbon Nanotubes Prepared via Pyrolysis

Platinum Group Metal-Free Catalysts for Oxygen Reduction Reaction: Applications in Microbial Fuel Cells

Lead and Nitrogen Co-Doped Multi-Walled Carbon Nanotube Electrocatalyst for Oxygen Reduction Reaction

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