Noble-Metal-Free FeMn-N-C catalyst for efficient oxygen reduction reaction in both alkaline and acidic media

Zhao, Shuaili; Ma, Zhanhong; Wan, Zhongmin; Li, Jinping; Wang, Xiaoguang

doi:10.1016/j.jcis.2023.03.206

Cited by 29 publications

(10 citation statements)

References 67 publications

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“…Multiple active centers can induce electron rearrangement, altering the electronic environment on the metal surface, regulating internal electronic structure and microenvironment, and decreasing the reaction activation energy. [138][139][140][141] There are generally three forms of activity sources for bimetallic electrocatalysts (Fig. 8).…”

Section: Multimetallic Nanomaterialsmentioning

confidence: 99%

Advanced design strategies for Fe-based metal–organic framework-derived electrocatalysts toward high-performance Zn–air batteries

Guo,

Zhao,

Zhang

et al. 2024

Energy Environ. Sci.

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Section: Multimetallic Nanomaterialsmentioning

confidence: 99%

Advanced design strategies for Fe-based metal–organic framework-derived electrocatalysts toward high-performance Zn–air batteries

Guo,

Zhao,

Zhang

et al. 2024

Energy Environ. Sci.

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“…In experimental research, a large number of diatomic electrocatalysts have been reported for the application of ORR. Among these, Fe-based diatomic catalysts mainly include FeMn [ 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , 87 , 88 ], FeCo [ 89 , 90 , 91 , 92 , 93 , 94 ], FeCu [ 95 , 96 ], and FeNi [ 14 , 97 , 98 , 99 , 100 , 101 , 102 , 103 , 104 ]. Zhang et al reported that doping of Mn atoms in Fe-N-C catalysts improves the ORR performance.…”

Section: Performance Improvement Strategymentioning

confidence: 99%

Research Progress on Atomically Dispersed Fe-N-C Catalysts for the Oxygen Reduction Reaction

Lian,

Xu,

Zhou

et al. 2024

Molecules

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The efficiency and performance of proton exchange membrane fuel cells (PEMFCs) are primarily influenced by ORR electrocatalysts. In recent years, atomically dispersed metal–nitrogen–carbon (M-N-C) catalysts have gained significant attention due to their high active center density, high atomic utilization, and high activity. These catalysts are now considered the preferred alternative to traditional noble metal electrocatalysts. The unique properties of M-N-C catalysts are anticipated to enhance the energy conversion efficiency and lower the manufacturing cost of the entire system, thereby facilitating the commercialization and widespread application of fuel cell technology. This article initially delves into the origin of performance and degradation mechanisms of Fe-N-C catalysts from both experimental and theoretical perspectives. Building on this foundation, the focus shifts to strategies aimed at enhancing the activity and durability of atomically dispersed Fe-N-C catalysts. These strategies encompass the use of bimetallic atoms, atomic clusters, heteroatoms (B, S, and P), and morphology regulation to optimize catalytic active sites. This article concludes by detailing the current challenges and future prospects of atomically dispersed Fe-N-C catalysts.

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“…159,160 Recently, researchers have investigated the introduction of additional transition metal atoms into Mn−N−C to form bimetallic-doped carbon materials, which can alter the electronic configuration of Mn sites and reconfigure unique active sites that differ from monometallic Mn−N−C catalysts. 85,87 Additionally, the collaborative influence of bimetal can reduce the energy barrier for ORR and expedite charge transfer, thus improving ORR catalytic process. 15,84,118 4.3.1.…”

Section: Metal Atom Dopingmentioning

confidence: 99%

Recent Progress and Prospects of Manganese–Nitrogen–Carbon Electrocatalysts for Oxygen Reduction Reaction

Wang,

Yan,

Deng

et al. 2024

Energy Fuels

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The oxygen reduction reaction (ORR) holds significant importance in the electrochemical processes of energy conversion systems. The kinetics of the ORR are sluggish as it is involved in multistep reactions. It is imperative to investigate ORR electrocatalysts with outstanding performance and durability accelerating their kinetics. Manganese−nitrogen−carbon (Mn−N−C) materials offer significant advantages including efficient atom utilization and easily tunable coordination structures, rendering them promising candidates for enhancing ORR catalytic activity. The mini-review provides a concise overview of the fundamental principles underlying the ORR. Then, three strategies for regulating the coordination structure are summarized to improve the ORR catalytic activity of Mn−N−C catalysts: adjusting the coordination number of N atoms around Mn atoms, doping nonmetal atoms, and doping metal atoms. Finally, this mini-review outlines the challenges and prospects associated with the Mn− N−C catalyst for ORR. This mini-review is anticipated to deepen the comprehension of ORR electrocatalysts for readers by presenting targeted optimization methods to regulate the configuration of Mn−N−C catalysts.

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Noble-Metal-Free FeMn-N-C catalyst for efficient oxygen reduction reaction in both alkaline and acidic media

Cited by 29 publications

References 67 publications

Advanced design strategies for Fe-based metal–organic framework-derived electrocatalysts toward high-performance Zn–air batteries

Advanced design strategies for Fe-based metal–organic framework-derived electrocatalysts toward high-performance Zn–air batteries

Research Progress on Atomically Dispersed Fe-N-C Catalysts for the Oxygen Reduction Reaction

Recent Progress and Prospects of Manganese–Nitrogen–Carbon Electrocatalysts for Oxygen Reduction Reaction

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