Hollow porous nitrogen-doped carbon formed by fe-modified bimetallic organic framework for rechargeable liquid/solid Zn-air batteries

Li, Yang; Zhou, Wenhan; Zheng, Lingcheng; Li, Jun; Tang, Ranran; Shi, Kejian; Zhang, Yanyan

doi:10.1016/j.jallcom.2021.161227

Cited by 19 publications

(3 citation statements)

References 63 publications

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“…A lot of research has been done to improve on these weaknesses. [170][171][172][173][174] For low conductivity, 2,3,6,7,10,11-hexaiminotriphenylene (HITP) 175,176 has been proved to optimize the conductivity of MOFs to 11.50-70 S cm À1 , even more than that of graphene ($10 S cm À1 ) and activated carbon. Cheng et al 177 developed a melt polymerization strategy to synthesize iron-polyphthalocyanine (FePPc) metal-organic frameworks (MOFs) on a carbon black matrix.…”

Section: Organic-based Framework Air Electrodementioning

confidence: 99%

Challenges for large scale applications of rechargeable Zn–air batteries

et al. 2022

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Section: Organic-based Framework Air Electrodementioning

confidence: 99%

Challenges for large scale applications of rechargeable Zn–air batteries

et al. 2022

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“…The desorption degree of OH − /H 2 O on the surface of the catalyst is crucial for the OER activity, and by improving the performance of the electrocatalytic material, the value of the zinc–air battery is fully optimized. Due to the nonrenewable and expensive nature of the commercial precious metal catalysts applied in ZAB technology, it is necessary to find ideal and cheap alternative non-precious metal catalysts to replace the precious metal-based catalysts through exploiting the mechanistic understanding of the ORR/OER mechanisms [ 30 , 31 , 32 ].…”

Section: Orr/oer Reaction Mechanismmentioning

confidence: 99%

Research Progress of Bifunctional Oxygen Reactive Electrocatalysts for Zinc–Air Batteries

et al. 2022

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Zinc–air batteries (ZABs) have several advantages, including high energy density, cheap price and stable performances with good application prospects in the field of power batteries. The charging and discharging reactions for the air cathode of ZABs are the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), respectively, which play an important role in the whole performance of ZAB. Due to the cost and limited reserves of highly active precious metal catalysts, it is crucial to design alternative efficient and stable dual-functional non-precious metal catalysts. In the present review, we present a systematic summary of the recent progress in the use of transition metal-based electrocatalysts as alternatives to precious metals for the positive poles of ZAB air. Combined with state-of-the-art in situ characterization technologies, a deep understanding of the catalytic mechanism of OER/ORR provided unique insights into the precise design of excellent synthetic non-precious metal catalysts from the perspective of atomic structure. This review further shows that the hybrid electric battery is a new strategy to improve the efficiency of the hybrid electric battery, which could be available to alleviate the problem of resource shortage. Finally, the challenges and research trends for the future development of ZABs were clearly proposed.

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“…[22] This allows for the exposure of abundant reactive sites and shortens mass/gas diffusion pathways. [23,24] The current strategies to obtain hollow or porous structures based on ZIFs include the hard, [25] soft, [26] and selfsacrificial template methods. [27] The former two methods often involve multiple complex steps and/or the use of harmful conditions (e.g., HF) for template removal.…”

Section: Introductionmentioning

confidence: 99%

ZIFs‐Derived Hollow Nanostructures via a Strong/Weak Coetching Strategy for Long‐Life Rechargeable Zn–Air Batteries

Li,

Zhou,

et al. 2024

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Recently, zeolitic imidazolate frameworks (ZIFs) composites have emerged as promising precursors for synthesizing hollow‐structured N‐doped carbon‐based noble‐metal materials with diverse structures and compositions. Here, a strong/weak competitive coordination strategy is presented for synthesizing high‐performance electrocatalysts with hollow features. During the competitive coordination process, the cubic zeolitic‐imidazole framework‐8 (Cube‐8)@ZIF‐67 with core–shell structures are transformed into Cube‐8@ZIF‐67@PF/POM with yolk–shell nanostructures employing phosphomolybdic acid (POM) and potassium ferricyanide (PF) as the strong chelator and the weak chelator, respectively. After calcination, the hollow Mo/Fe/Co@NC catalyst exhibits superior performance in both oxygen evolution reaction (OER) and oxygen reduction reaction (ORR). Interestingly, the Mo/Fe/Co@NC catalyst exhibits efficient electrocatalytic performance for Zn–air batteries (ZABs), with a high power density (≈150 mW cm−2) and superior cycling life (≈500 h) compared to commercial platinum/carbon (Pt/C) and ruthenium dioxide (RuO2) mixture benchmarks catalysts. In addition, the density functional theory further proves that after the introduction of Mo and Fe atoms, the adsorption energy with the adsorption intermediates is weakened by adjusting the d‐band center, thus weakening the reaction barrier and promoting the reaction kinetics of OER. Undoubtedly, this study presents novel insights into the fabrication of ZIFs‐derived hollow structure bifunctional oxygen electrocatalysts for clean‐energy diverse applications.

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Hollow porous nitrogen-doped carbon formed by fe-modified bimetallic organic framework for rechargeable liquid/solid Zn-air batteries

Cited by 19 publications

References 63 publications

Challenges for large scale applications of rechargeable Zn–air batteries

Challenges for large scale applications of rechargeable Zn–air batteries

Research Progress of Bifunctional Oxygen Reactive Electrocatalysts for Zinc–Air Batteries

ZIFs‐Derived Hollow Nanostructures via a Strong/Weak Coetching Strategy for Long‐Life Rechargeable Zn–Air Batteries

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