Synthesis of hierarchically structured Fe<sub>3</sub>C/CNTs composites in a FeNC matrix for use as efficient ORR electrocatalysts

Wang, Tanlun; Xu, Lincheng; Sun, Chenxiang; Li, Xiyuan; Yan, Yonggao; Fan, Li

doi:10.1039/d2ra07848a

RSC Adv.

2023

DOI: 10.1039/d2ra07848a

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Synthesis of hierarchically structured Fe₃C/CNTs composites in a FeNC matrix for use as efficient ORR electrocatalysts

Tanlun Wang

Lincheng Xu

Chenxiang Sun

et al.

Abstract: The synthesis of an FeNC catalyst with an Fe3C phase and the important active site was Fe(ii).

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2024

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Cited by 8 publications

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Synergistic Fe/Fe₃C@Fe‐NC@Carbon Nanotube Heterostructure for Enhanced CO₂ Capture and Mineral Recovery from Desalination Brine

Vo,

Ng,

Thangasamy

et al. 2024

Adv Funct Materials

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Metal recovery coupled with CO2 mineralization from sustainable sources, such as seawater, has garnered significant attention from environmental science and resource utilization perspectives. Herein, an earth‐abundant and efficient Fe/Fe3C@Fe‐N‐codoped carbon@carbon nanotube (Fe/Fe3C@Fe‐NC@CNT) hybrid cathodic catalyst is introduced for electrochemically extracting magnesium and calcium from desalination brine while capturing CO2 to produce valuable Mg(OH)2 and CaCO3. The Fe/Fe3C@Fe‐NC@CNT, featuring the combination of single‐atomic Fe sites and graphitic layer‐wrapped Fe/Fe3C nanoparticles encapsulated within N‐doped mesoporous carbon tubes, achieves over 90% of Ca2+ and Mg2+ metal cations recovery efficiency at 25 mA cm−2 for 6 h. More importantly, the Fe/Fe3C@Fe‐NC@CNT hybrid catalyst efficiently suppresses the competitive hydrogen evolution side reaction even at high currents and boasts a wider operating potential range compared to benchmark Pt/C, enhancing the metal recovery efficiency and CO2 capture capability. These findings underscore the potential of the Fe/Fe3C@Fe‐NC@CNT hybrid catalyst in revolutionizing brine management and waste stream handling, offering a promising and sustainable solution to these critical environmental challenges.

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Synergistic Fe/Fe₃C@Fe‐NC@Carbon Nanotube Heterostructure for Enhanced CO₂ Capture and Mineral Recovery from Desalination Brine

Vo,

Ng,

Thangasamy

et al. 2024

Adv Funct Materials

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Adding Fe/dicyandiamide to Co-MOF to greatly improve its ORR/OER bifunctional electrocatalytic activity

Fang,

Tang,

2024

Applied Catalysis B: Environmental

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Enhancing aerobic oxidation of C–H bonds through efficient catalysis of iron MOF–derived Fe3C nanoparticles embedded in porous carbon catalysts

Zhuang,

Jian,

Xue

et al. 2024

Applied Surface Science

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Synthesis of hierarchically structured Fe₃C/CNTs composites in a FeNC matrix for use as efficient ORR electrocatalysts

Abstract: The synthesis of an FeNC catalyst with an Fe3C phase and the important active site was Fe(ii).

Cited by 8 publications

References 41 publications

Synergistic Fe/Fe₃C@Fe‐NC@Carbon Nanotube Heterostructure for Enhanced CO₂ Capture and Mineral Recovery from Desalination Brine

Synergistic Fe/Fe₃C@Fe‐NC@Carbon Nanotube Heterostructure for Enhanced CO₂ Capture and Mineral Recovery from Desalination Brine

Adding Fe/dicyandiamide to Co-MOF to greatly improve its ORR/OER bifunctional electrocatalytic activity

Enhancing aerobic oxidation of C–H bonds through efficient catalysis of iron MOF–derived Fe3C nanoparticles embedded in porous carbon catalysts

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Synthesis of hierarchically structured Fe3C/CNTs composites in a FeNC matrix for use as efficient ORR electrocatalysts

Abstract: The synthesis of an FeNC catalyst with an Fe3C phase and the important active site was Fe(ii).

Cited by 8 publications

References 41 publications

Synergistic Fe/Fe3C@Fe‐NC@Carbon Nanotube Heterostructure for Enhanced CO2 Capture and Mineral Recovery from Desalination Brine

Synergistic Fe/Fe3C@Fe‐NC@Carbon Nanotube Heterostructure for Enhanced CO2 Capture and Mineral Recovery from Desalination Brine

Adding Fe/dicyandiamide to Co-MOF to greatly improve its ORR/OER bifunctional electrocatalytic activity

Enhancing aerobic oxidation of C–H bonds through efficient catalysis of iron MOF–derived Fe3C nanoparticles embedded in porous carbon catalysts

Contact Info

Product

Resources

About

Synthesis of hierarchically structured Fe₃C/CNTs composites in a FeNC matrix for use as efficient ORR electrocatalysts

Synergistic Fe/Fe₃C@Fe‐NC@Carbon Nanotube Heterostructure for Enhanced CO₂ Capture and Mineral Recovery from Desalination Brine

Synergistic Fe/Fe₃C@Fe‐NC@Carbon Nanotube Heterostructure for Enhanced CO₂ Capture and Mineral Recovery from Desalination Brine