Carbon-nanotube-grafted and nano-Co3O4-doped porous carbon derived from metal-organic framework as an excellent bifunctional catalyst for zinc–air battery

Wang, Chih-Chia; Hung, Kuo-Yung; Ko, Ta-En; Hosseini, Soraya; Li, Yuan-Yao

doi:10.1016/j.jpowsour.2020.227841

Cited by 51 publications

(15 citation statements)

References 73 publications

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“…No Zn metal was found in the material, which was attributed to the removal of Zn from the particles during the heat treatment process. 19 ICP-MS and EA were employed for the quantitative elemental analysis of A-Fe-NC/rGO to obtain the composition of the material. 52 Table S2 lists the weight percentages of each element in the catalysts.…”

Section: Resultsmentioning

confidence: 99%

“…The elemental composition of A-Fe-NC/rGO was quantitatively analyzed using EDS and the results are listed in Table S1. No Zn metal was found in the material, which was attributed to the removal of Zn from the particles during the heat treatment process …”

Section: Resultsmentioning

confidence: 99%

“…In general, Pt nanoparticles (1–3 nm) are deposited on conductive carbon black (20–50 nm) to form a Pt/carbon composite . However, its high price, scarcity, poor durability, and susceptibility to CO poisoning hinder the commercialization of Pt-based PEMFCs. , As the ORR reaction is five orders of magnitude slower than the HOR reaction, researchers have aimed to develop highly active nonprecious-metal catalysts (PMCs) to replace Pt/C in the cathode. , Non-PMCs include transition-metal–nitrogen–carbon catalysts (M–N–C), transition-metal oxides/nitrides/carbides, − transition-metal chalcogenides, and nitrogen-doped carbon materials …”

Section: Introductionmentioning

confidence: 99%

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Highly Porous Iron-Doped Nitrogen–Carbon Framework on Reduced Graphene Oxide as an Excellent Oxygen Reduction Catalyst for Proton-Exchange Membrane Fuel Cells

Lin

Tsai

Huang

et al. 2022

ACS Appl. Energy Mater.

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Iron-doped nitrogen carbon (Fe-NC) is a suitable catalyst for the oxygen reduction reaction (ORR) in acidic and alkaline environments. However, challenges remain in controlling the porosity of the catalyst and distribution of the active sites. Herein, we have prepared a highly porous Fe-doped nitrogen−carbon framework on reduced graphene (A-Fe-NC/rGO) for ORR and proton-exchange membrane fuel cell (PEMFC) studies. The A-Fe-NC/rGO catalyst was fabricated via carbonization of Fedoped zeolitic imidazolate framework-8 (ZIF8) on graphene oxide, followed by thermal treatment in the presence of NH 3 to create mesopores and modify the nitrogen species present in the catalyst. As a result, highly porous, hierarchical, and conductive A-Fe-NC/ rGO with a specific surface area of 1226.2 m 2 g −1 was synthesized. The catalyst exhibited superior performance using linear sweep voltammetry (LSV) in 0.1 M HClO 4 and 0.1 M KOH electrolytes when compared to a commercially available Pt/C catalyst. The excellent performance has been attributed to (1) the hierarchical structure enabling rapid mass transfer, (2) the highly porous carbon framework exposing a large number of active Fe sites on the surface, and (3) reduced graphene oxide enhancing the conductivity of the catalyst. Our PEMFC study has shown that a maximum power density of 310 mW cm −2 can be achieved at 764 mA cm −2 . We believe that A-Fe-NC/rGO can be used as a high-quality cathode catalyst for PEMFC applications.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Highly Porous Iron-Doped Nitrogen–Carbon Framework on Reduced Graphene Oxide as an Excellent Oxygen Reduction Catalyst for Proton-Exchange Membrane Fuel Cells

Lin

Tsai

Huang

et al. 2022

ACS Appl. Energy Mater.

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“…There are various type of accessible microstructures of carbon materials, such as graphite, carbon fiber, nanotube, amorphous powders, and diamond [67]. With the persist breakthrough of nanotech in materials science, carbon nanomaterials, especially carbon nanotubes (CNT) and carbon nanofiber (CNF), have gained considerable focus in electroanalysis [68], electronic [69,70], optics [70], polymer composite [71], catalyst [72][73][74], and other related fields. In 2014, researcher Zhai Zhao Yang's team described the using graphene as solid support in synthesis the catalyst and applied in O-arylation Ullmann cross-coupling reaction.…”

Section: Scheme 14 Maghemite-copper Oxide Nanoparticles Catalyzed Symentioning

confidence: 99%

“…Catalysts 2020, 10, x FOR PEER REVIEW 19 of 51 nanotubes (CNT) and carbon nanofiber (CNF), have gained considerable focus in electroanalysis [68], electronic [69,70], optics [70], polymer composite [71], catalyst [72][73][74], and other related fields.…”

Section: Scheme 14 Maghemite-copper Oxide Nanoparticles Catalyzed Symentioning

confidence: 99%

Recent Advancement of Ullmann Condensation Coupling Reaction in the Formation of Aryl-Oxygen (C-O) Bonding by Copper-Mediated Catalyst

et al. 2020

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Transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents belong to the most important cross coupling reaction in organic synthesis. The biaryl ether division is not only popular in natural products and synthetic pharmaceuticals but also widely found in many pesticides, polymers, and ligands. Copper catalyst has received great attention owing to the low toxicity and low cost. However, traditional Ullmann-type couplings suffer from limited substrate scopes and harsh reaction conditions. The introduction of homogeneous copper catalyst with presence of bidentate ligands over the past two decades has totally changed this situation as these ligands enable the reaction promoted in mild condition. The reaction scope has also been greatly expanded, rendering this copper-based cross-coupling attractive for both academia and industry. In this review, we will highlight the latest progress in the development of useful homogeneous copper catalyst with presence of ligand and heterogeneous copper catalyst in Ullmann type C-O cross-coupling reaction. Additionally, the application of Ullmann type C-O cross coupling reaction will be discussed.

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Co₃O₄ Nanoparticle/F, N‐codoped Graphene for High Efficiency Oxygen Reduction and Zinc‐air Battery

et al. 2023

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The connection between the active components and supports in a catalyst is important for the high activity and long‐term stability during catalysis. Here, Co3O4 nanoparticles embedded in F, N‐doped graphene (Co3O4/F, N‐doped G) are synthesized by silicon‐hydrogen bond reduction. F and N atoms doped graphene interacts with Co3O4 nanoparticles to optimize oxygen reduction reaction (ORR) catalytic activity. The optimal Co3O4/F, N‐doped G‐2 catalyst with Co loading of 3.38 wt% shows a half‐wave potential of 0.852 V vs RHE in 0.1 M KOH solution. Furthermore, Co3O4/F, N‐doped G‐2 catalyst outputs an extremely high open circuit voltage of 1.47 V and an excellent power density of 280 mW cm−2 at current density of 450 mA cm−2 when applied to the primary Zn‐air batteries. Due to the synergetic effects from Co3O4 and supports (F, N‐doped G), Co3O4/F, N‐doped G‐2 catalyst also shows excellent stability and anti‐toxicity, and has good practical application prospects.

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Carbon-nanotube-grafted and nano-Co3O4-doped porous carbon derived from metal-organic framework as an excellent bifunctional catalyst for zinc–air battery

Cited by 51 publications

References 73 publications

Highly Porous Iron-Doped Nitrogen–Carbon Framework on Reduced Graphene Oxide as an Excellent Oxygen Reduction Catalyst for Proton-Exchange Membrane Fuel Cells

Highly Porous Iron-Doped Nitrogen–Carbon Framework on Reduced Graphene Oxide as an Excellent Oxygen Reduction Catalyst for Proton-Exchange Membrane Fuel Cells

Recent Advancement of Ullmann Condensation Coupling Reaction in the Formation of Aryl-Oxygen (C-O) Bonding by Copper-Mediated Catalyst

Co₃O₄ Nanoparticle/F, N‐codoped Graphene for High Efficiency Oxygen Reduction and Zinc‐air Battery

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Carbon-nanotube-grafted and nano-Co3O4-doped porous carbon derived from metal-organic framework as an excellent bifunctional catalyst for zinc–air battery

Cited by 51 publications

References 73 publications

Highly Porous Iron-Doped Nitrogen–Carbon Framework on Reduced Graphene Oxide as an Excellent Oxygen Reduction Catalyst for Proton-Exchange Membrane Fuel Cells

Highly Porous Iron-Doped Nitrogen–Carbon Framework on Reduced Graphene Oxide as an Excellent Oxygen Reduction Catalyst for Proton-Exchange Membrane Fuel Cells

Recent Advancement of Ullmann Condensation Coupling Reaction in the Formation of Aryl-Oxygen (C-O) Bonding by Copper-Mediated Catalyst

Co3O4 Nanoparticle/F, N‐codoped Graphene for High Efficiency Oxygen Reduction and Zinc‐air Battery

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Co₃O₄ Nanoparticle/F, N‐codoped Graphene for High Efficiency Oxygen Reduction and Zinc‐air Battery