Facile and economic synthesis of heteroatoms co-doped graphene using garlic biomass as a highly stable electrocatalyst toward 4 e− ORR

Sadeghhassani, Sedigheh; Samiee, Leila; Ganjali, M. R.; Rashidi, Alimorad

doi:10.1007/s13738-021-02306-9

Cited by 6 publications

(3 citation statements)

References 45 publications

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“…The electron transfer number (n) and the hydrogen peroxide yield (H 2 O 2 %) of catalysts during electrocatalytic process are calculated by Koutecky-Levich (K-L) equation. 52 Fig. 5e shows the electron transfer number are approximate to 3.93 and 3.96, conrming that Fe/Fe 3 O 4 @NC catalyst shows an efficient 4e À transfer pathway of ORR.…”

Section: Electrochemical Performance For Orrmentioning

confidence: 80%

Synergistic melamine intercalation and Zn(NO₃)₂ activation of N-doped porous carbon supported Fe/Fe₃O₄ for efficient electrocatalytic oxygen reduction

Wang

Zhou

et al. 2022

RSC Adv.

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Section: Electrochemical Performance For Orrmentioning

confidence: 80%

Synergistic melamine intercalation and Zn(NO₃)₂ activation of N-doped porous carbon supported Fe/Fe₃O₄ for efficient electrocatalytic oxygen reduction

Wang

Zhou

et al. 2022

RSC Adv.

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“…Additionally, ball milling provides a unique route for doping graphene with heteroatoms. [29,38,60,61] This is achieved by an edge selective functionalization mechanism. During the ball milling doping process, freshly produced active carbon species in the form of carbo-radicals, carbo-cations, and/or carbo-anions, formed at the edges of the graphene flakes facilitate the reaction of graphene with the heteroatom dopants.…”

Section: Ball-millingmentioning

confidence: 99%

“…The ball milling processes provide another effective route for the mass production of graphene nanosheets at low cost through the delamination of bulk graphite as well as the cracking of the C−C bonds in organic compounds. Additionally, ball milling provides a unique route for doping graphene with heteroatoms [29,38,60,61] . This is achieved by an edge selective functionalization mechanism.…”

Section: Synthesis Of B/n Co‐doped Graphenementioning

confidence: 99%

Co‐doping Graphene with B and N Heteroatoms for Application in Energy Conversion and Storage Devices

et al. 2022

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Graphene, as an important member of the twodimensional (2D) class of materials, has been used extensively in a large spectrum of applications due to its remarkable properties. In addition to its properties and its easy modulation through intentional doping with boron (B) and nitrogen (N) heteroatoms leads to the production of graphene derivatives that exhibits a comprehensive arsenal of fascinating properties. More importantly, the different electronegativities of boron and nitrogen heteroatoms bestows graphene with a variety of new and/or improved electromagnetic, catalytic, physicochemical, and optical properties. As a result, doped graphene derivatives have been explored in catalysis, biotechnology, sensors, water purification, and used in many other applications. Nonetheless, there is a shortage of data on the use of B/N co-doped graphene nanomaterials in renewable energy conversion and storage technology. Therefore, this article aims to provide an overview on the recent progress and future aspects of several key applications of B/N co-doped graphene nanomaterials in these areas of energy and storage.

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Multilayer Porous Fe/Co‐N‐MWCNT Electrocatalyst For Rechargeable Zinc‐Air Batteries

Ma,

Wang,

Zang

et al. 2024

Chemistry An Asian Journal

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The rational design of efficient, stable, low‐cost non‐precious metal‐based electrocatalysts with enhanced oxygen reduction reaction (ORR) activity has attracted widespread attention. In this study, a novel electrocatalyst, Fe/Co‐N‐MWCNT, was prepared by in‐situ growth of ZIF‐8 and Fe/Co‐Phen on multi‐walled carbon nanotubes (MWCNTs), then pyrolysis under different temperature to obtain optimal one. During the pyrolysis process, the incorporation of Fe and Co facilitated the formation of metal active sites and Fe‐Co alloy, thereby promoting electron transfer and enhancing the ORR activity. Compared to Pt/C (E1/2 = 0.854V, JL = 4.90 mA cm‐2), Fe/Co‐N‐MWCNT demonstrated a comparable half‐wave potential (E1/2 = 0.812V) and an enhanced limiting current density (JL = 5.37 mA cm‐2). Furthermore, Fe/Co‐N‐MWCNT was stable and showed no significant change after 2000 cycles, with only a negative shift of 7 mV in E1/2. Ampere response testing revealed that the current decay of Fe/Co‐N‐MWCNT after 10000 s was only about 7.8%, while that of Pt/C was about 18.4%. Due to its excellent catalytic stability, Fe/Co‐N‐MWCNT was demonstrated to be an excellent candidate for rechargeable zinc‐air batteries. The outstanding electrocatalytic performance of Fe/Co‐N‐MWCNT can be attributed to its high pyridinic nitrogen content, the unique structure and abundant metal active sites.

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Facile and economic synthesis of heteroatoms co-doped graphene using garlic biomass as a highly stable electrocatalyst toward 4 e− ORR

Cited by 6 publications

References 45 publications

Synergistic melamine intercalation and Zn(NO₃)₂ activation of N-doped porous carbon supported Fe/Fe₃O₄ for efficient electrocatalytic oxygen reduction

Synergistic melamine intercalation and Zn(NO₃)₂ activation of N-doped porous carbon supported Fe/Fe₃O₄ for efficient electrocatalytic oxygen reduction

Co‐doping Graphene with B and N Heteroatoms for Application in Energy Conversion and Storage Devices

Multilayer Porous Fe/Co‐N‐MWCNT Electrocatalyst For Rechargeable Zinc‐Air Batteries

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Facile and economic synthesis of heteroatoms co-doped graphene using garlic biomass as a highly stable electrocatalyst toward 4 e− ORR

Cited by 6 publications

References 45 publications

Synergistic melamine intercalation and Zn(NO3)2 activation of N-doped porous carbon supported Fe/Fe3O4 for efficient electrocatalytic oxygen reduction

Synergistic melamine intercalation and Zn(NO3)2 activation of N-doped porous carbon supported Fe/Fe3O4 for efficient electrocatalytic oxygen reduction

Co‐doping Graphene with B and N Heteroatoms for Application in Energy Conversion and Storage Devices

Multilayer Porous Fe/Co‐N‐MWCNT Electrocatalyst For Rechargeable Zinc‐Air Batteries

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Product

Resources

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Synergistic melamine intercalation and Zn(NO₃)₂ activation of N-doped porous carbon supported Fe/Fe₃O₄ for efficient electrocatalytic oxygen reduction

Synergistic melamine intercalation and Zn(NO₃)₂ activation of N-doped porous carbon supported Fe/Fe₃O₄ for efficient electrocatalytic oxygen reduction