Steering structural mesoporosity and working microenvironment of Fe-N-C catalysts for boosting cathodic mass transport of zinc-air batteries

Shen, Hang; Jia, Yongyi; Qi, Yanbin; Dai, Sheng; Jiang, Hongliang; Zhu, Yihua; Li, Chunzhong

doi:10.1007/s11426-022-1303-x

Cited by 6 publications

(2 citation statements)

References 58 publications

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“…Recent reports indicate that the appropriate bond length of the M–N bond is crucial for inhibiting the demetallization of active sites. , Miao et al proposed a universal strategy to enhance the stability of M–N–C catalysts in PEMFCs by adjusting the M–N bond length. Specifically, by modulating the binding constants between Fe 3+ ions and polymers {poly(acrylic acid) (PAA) homopolymer and maleic acid–acrylic acid [P(AA–MA)] copolymer}, the Fe–N bond length and coordination number in Fe–N–C can be controlled, thereby improving its stability in PEMFCs.…”

Section: Application Of Single-atom-supported Metal Catalysts In Pemf...mentioning

confidence: 99%

Metal–Single Atom Support Interactions for Enhancing Proton-Exchange Membrane Fuel Cell Cathode Stability: A Review

Gong,

Xue,

et al. 2024

Energy Fuels

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Proton-exchange membrane fuel cells (PEMFCs) serve as a critical technological avenue for the large-scale advancement of renewable energy and the attainment of the goals of carbon peak and carbon neutrality. However, the sluggish oxygen reduction reaction (ORR) at the cathode and the high dependence upon expensive and scarce platinum group metal (PGM)-based catalysts are the main bottlenecks limiting the large-scale development of PEMFCs. Therefore, the development of non-PGM-based catalysts, especially the highly promising single-atom catalysts (SACs), has emerged as an effective solution to reduce costs. However, the insufficient long-term stability of SACs under PEMFC operating conditions severely hampers their practical application. Metal−support interactions (MSI) are generally considered an effective strategy for enhancing the stability of SACs. Consequently, this review explores the topic of enhancing the stability of SACs in the cathode of PEMFCs by constructing single-atom-supported metal catalysts with MSI. In the discussion, the degradation pathways of SACs are initially outlined, followed by an exploration of MSI principles, synthesis strategies for single-atom-supported metal catalysts based on MSI, and their applications in enhancing the stability of PEMFC cathodes. Finally, an overview is provided regarding the challenges in the future development of single-atomsupported metal catalysts.

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Section: Application Of Single-atom-supported Metal Catalysts In Pemf...mentioning

confidence: 99%

Metal–Single Atom Support Interactions for Enhancing Proton-Exchange Membrane Fuel Cell Cathode Stability: A Review

Gong,

Xue,

et al. 2024

Energy Fuels

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show abstract

“…[5][6][7] However, the obstacle in the commercial application of FZABs is hindered by the slow kinetic process of two crucial cathode reactions. 8 In detail, the oxygen reduction reaction (ORR), where O 2 is the reactant to produce H 2 O or H 2 O 2 from O, plays a critical role in various chemical-to-electrical energy conversion devices. [9][10][11] Besides, the oxygen evolution reaction (OER) involves liberating O 2 from OH À or H 2 O.…”

Section: Introductionmentioning

confidence: 99%

Atomically dispersed multi-site catalysts: bifunctional oxygen electrocatalysts boost flexible zinc–air battery performance

Wang,

Zhang,

et al. 2024

Energy Environ. Sci.

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Cation-π interactions regulate electrocatalytic water oxidation over iridium single atoms supported on conjugated polymers

Bai,

Liu,

et al. 2024

Sci. China Chem.

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Steering structural mesoporosity and working microenvironment of Fe-N-C catalysts for boosting cathodic mass transport of zinc-air batteries

Cited by 6 publications

References 58 publications

Metal–Single Atom Support Interactions for Enhancing Proton-Exchange Membrane Fuel Cell Cathode Stability: A Review

Metal–Single Atom Support Interactions for Enhancing Proton-Exchange Membrane Fuel Cell Cathode Stability: A Review

Atomically dispersed multi-site catalysts: bifunctional oxygen electrocatalysts boost flexible zinc–air battery performance

Cation-π interactions regulate electrocatalytic water oxidation over iridium single atoms supported on conjugated polymers

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