Agarose-gel-based self-limiting synthesis of a bimetal (Fe and Co)-doped composite as a bifunctional catalyst for a zinc-air battery

Zhang, Yang; Zhao, Manning; Yang, Qian; Lai, Mingyang; Zhang, Junyuan; Liu, Changyu; Xu, Xiaolong; Jia, Jianbo

doi:10.1016/j.jcis.2022.12.138

Cited by 14 publications

(4 citation statements)

References 51 publications

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“…Generally, the smaller the R ct , the stronger the charge transfer capability. 47,48 As shown in Fig. 6c, the R ct of Co 9 S 8 /NSC-1 was 5.5 Ω, which was lower than those of Co 9 S 8 /NSC-2 (19.9 Ω) and Co 9 S 8 /NSC-3 (19.0 Ω), indicating that the kinetic process of the OER in Co 9 S 8 /NSC-1 was faster.…”

Section: Resultsmentioning

confidence: 89%

N,S co-doped porous carbon with Co₉S₈ prepared with a Co-FF-derived Co₃O₄ template: a bi-functional electrocatalyst for rechargeable zinc–air batteries

Wu,

Xie,

Zhang

et al. 2023

Dalton Trans.

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Section: Resultsmentioning

confidence: 89%

N,S co-doped porous carbon with Co₉S₈ prepared with a Co-FF-derived Co₃O₄ template: a bi-functional electrocatalyst for rechargeable zinc–air batteries

Wu,

Xie,

Zhang

et al. 2023

Dalton Trans.

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“…The high-resolution XPS spectra for different elements are further revealed in Figure 4 and Tables S3-S6. Figure 4a shows that the C 1s XPS spectra for the samples are deconvoluted into C-C/C=C (~284.8 eV), C-N/C-O (~286.1 eV), O-C=O (~288.4 eV), and C 1s plasmon (~291.2 eV) [40]. As shown in Figure 4b, the high-resolution N 1s spectra of NC and Z-Fe1Mn1-NC display six peaks, at ~398.7 eV, ~399.8 eV, ~400.4 eV, ~401.3 eV, ~402-403 eV, and ~405 eV, which corresponds to pyridinic-N, M-Nx, pyrrolic-N, graphitic-N and oxidized-N (N-O1 and N-O2), respectively [41].…”

Section: Resultsmentioning

confidence: 99%

Dual-MOFs-Derived Fe and Mn Species Anchored on Bamboo-like Carbon Nanotubes for Efficient Oxygen Reduction as Electrocatalysts

Situ,

Zhao,

Huang

et al. 2023

Catalysts

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The development of efficient non-precious metal electrocatalysts for oxygen reduction reaction (ORR) to replace Pt-based methods is crucial for the applications of fuel cells and metal–air batteries. In this study, a bimetallic M-N-C catalyst with highly dispersed dual-atom Fe/Mn-Nx sites immobilized on N-doped bamboo-like carbon nanotubes is prepared by the ball-milling and calcination of dual-MOFs as precursors. The rich N-doping and abundant M–Nx species contribute to the excellent intrinsic ORR activity of the catalyst, and the unique bamboo-like nanotubes morphology is beneficial for facilitating electron transfer and mass transport while simultaneously enabling the exposure of active sites. As expected, the optimized Z-Fe1Mn1-NC catalyst exhibits efficient ORR activity with a half-wave potential (E1/2) of 0.80 V in acid and 0.82 V in alkaline, and a higher electrochemical stability with the current density maintained at 91% (in 0.1 M KOH) and 86% (0.1 M HClO4) of its initial current density after 15 h of a chronoamperometric test at a high potential of 0.7 V. When further applied to Zn–air batteries, the catalyst also delivers a high open-circuit voltage, large power density, and outstanding rate performance. This work provides a novel means of designing dual metal M–Nx site-based M-N-C catalysts for ORR sustainable energy applications.

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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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Agarose-gel-based self-limiting synthesis of a bimetal (Fe and Co)-doped composite as a bifunctional catalyst for a zinc-air battery

Cited by 14 publications

References 51 publications

N,S co-doped porous carbon with Co₉S₈ prepared with a Co-FF-derived Co₃O₄ template: a bi-functional electrocatalyst for rechargeable zinc–air batteries

N,S co-doped porous carbon with Co₉S₈ prepared with a Co-FF-derived Co₃O₄ template: a bi-functional electrocatalyst for rechargeable zinc–air batteries

Dual-MOFs-Derived Fe and Mn Species Anchored on Bamboo-like Carbon Nanotubes for Efficient Oxygen Reduction as Electrocatalysts

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

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Agarose-gel-based self-limiting synthesis of a bimetal (Fe and Co)-doped composite as a bifunctional catalyst for a zinc-air battery

Cited by 14 publications

References 51 publications

N,S co-doped porous carbon with Co9S8 prepared with a Co-FF-derived Co3O4 template: a bi-functional electrocatalyst for rechargeable zinc–air batteries

N,S co-doped porous carbon with Co9S8 prepared with a Co-FF-derived Co3O4 template: a bi-functional electrocatalyst for rechargeable zinc–air batteries

Dual-MOFs-Derived Fe and Mn Species Anchored on Bamboo-like Carbon Nanotubes for Efficient Oxygen Reduction as Electrocatalysts

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

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N,S co-doped porous carbon with Co₉S₈ prepared with a Co-FF-derived Co₃O₄ template: a bi-functional electrocatalyst for rechargeable zinc–air batteries

N,S co-doped porous carbon with Co₉S₈ prepared with a Co-FF-derived Co₃O₄ template: a bi-functional electrocatalyst for rechargeable zinc–air batteries