Optimized cobalt and graphitic carbon hybrid catalysts derived from zeolite imidazolate framework for oxygen evolution reaction

Kang, Taeoh; Lee, GeunHyeong; Kim, Jooheon

doi:10.1002/er.7853

Cited by 4 publications

(1 citation statement)

References 54 publications

(104 reference statements)

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“…Previous research in catalysis underscores the critical impact of metal nanoparticle distribution, morphology, and size on their catalytic activity in various reactions [13][14][15]. Typically, a reduction in metal particle size correlates with an increasement in catalytic activity [16].…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of ultrafine Cu, Ag, and Ni nanoparticles supported on 3D hydrogel beads for the rapid reduction of 4-nitrophenol

Yao,

Zhao,

Shao

et al. 2024

Preprint

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The development of a catalyst with high catalytic activity and selectivity remains a crucial challenge in the field of heterogeneous catalysis. In this work, we demonstrated a versatile procedure for the immobilization of ultrafine and monodispersed metal nanoparticles within 5 nm onto glutaraldehyde-crosslinked polyethyleneimine-modified calcium alginate (GLA-PEI/Ca-SA) beads. The resulting hydrogel beads underwent comprehensive characterization through scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS), and X-ray photoelectron spectroscopy (XPS). The results revealed that well-dispersed Ag, Cu, and Ni nanoparticles, each with a mean size of 3.5, 2.6, and 4.1 nm, respectively, were successfully loaded onto the surface of GLA-PEI/Ca-SA beads with a 3D interconnected honeycomb-like porous structure. Notably, the Ag/GLA-PEI/Ca-SA exhibited outstanding catalytic activity and stability, achieving over 95% conversion within 7 successive cycles towards the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) by NaBH4 in aqueous solution. Particularly, the Cu/GLA-PEI/Ca-SA beads displayed the highest catalytic activity for the reduction of 4-NP with a kinetic reaction rate constant of 1.56×10− 2 s− 1. We expect that this work provides a novel and effective strategy to design highly efficient catalysts across various catalytic reactions.

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Section: Introductionmentioning

confidence: 99%

Facile synthesis of ultrafine Cu, Ag, and Ni nanoparticles supported on 3D hydrogel beads for the rapid reduction of 4-nitrophenol

Yao,

Zhao,

Shao

et al. 2024

Preprint

View full text Add to dashboard Cite

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Self-supporting one-dimensional ZnFe-BDC for electrocatalysis oxygen evolution reaction in alkaline and natural seawater

Cheng

Luo

Zheng

et al. 2022

International Journal of Hydrogen Energy

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Pyrochlore@PBA derived electrocatalyst containing Ru nanoparticle and NiFe alloy for the oxygen evolution and reduction reactions

Lee,

Yang,

Kim

2024

Journal of Alloys and Compounds

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Optimized cobalt and graphitic carbon hybrid catalysts derived from zeolite imidazolate framework for oxygen evolution reaction

Abstract: Catalysts with cobalt (Co) and graphitic carbon hybrid structure are receiving signif-

Cited by 4 publications

References 54 publications

Facile synthesis of ultrafine Cu, Ag, and Ni nanoparticles supported on 3D hydrogel beads for the rapid reduction of 4-nitrophenol

Facile synthesis of ultrafine Cu, Ag, and Ni nanoparticles supported on 3D hydrogel beads for the rapid reduction of 4-nitrophenol

Self-supporting one-dimensional ZnFe-BDC for electrocatalysis oxygen evolution reaction in alkaline and natural seawater

Pyrochlore@PBA derived electrocatalyst containing Ru nanoparticle and NiFe alloy for the oxygen evolution and reduction reactions

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