Engineering the shape of one-dimensional metallic nanostructures via nanopore electrochemistry

Jeon, Yoo Sang; Park, Bum Chul; Ko, Min Jun; Moon, Jun Hwan; Jeong, Eunjin; Kim, Young Keun

doi:10.1016/j.nantod.2021.101348

Cited by 4 publications

(2 citation statements)

References 38 publications

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“…We employed CoFe NCs as sacrificial templates, synthesized through a nanopore engineering procedure wherein ionic complexes from the plating solution adhere to the surface of the nanopore, impeding the reduction of metal precursors and promoting the assembly of nanocrystals into helical structures. [ 23 ] The synthesized CoFe sacrificial NCs were dispersed within a carefully tailored solution using an electrochemical strategy, converting to eight types of targeted NC structures through a spontaneous synthesis process. The sacrificial homogeneous bimetallic alloy template exhibited distinguishable diffusion behaviors of each atom within an electrochemical solution under specific conditions, thereby successfully demonstrating a one‐step synthesis of the mYSNCs.…”

Section: Introductionmentioning

confidence: 99%

One‐Step Electrochemical Synthesis of Multiyolk–Shell Nanocoils for Exceptional Photocatalytic Performance

Moon,

Oh,

Koo

et al. 2024

Advanced Materials

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Multi‐yolk‐shell nanostructures have garnered significant interest in various photocatalysis applications such as water splitting and waste treatment. Nonetheless, the complexity and rigorous conditions for the synthesis have hindered their widespread implementation. This study presents a one‐step electrochemical strategy for synthesizing multi‐yolk‐shell nanocoils (mYSNC), wherein multiple cores of noble metal nanoparticles, such as Au, are embedded within the hollow coil‐shaped FePO4 shell structures, mitigating the challenges posed by conventional methods. By capitalizing on the dissimilar dissolution rates of bimetallic alloy nanocoils in an electrochemically programmed solution, we successfully fabricate nanocoils of different shapes and materials, including two variations of mYSNCs. The resulting Au‐FePO4 mYSNCs exhibit exceptional photocatalytic performance for environmental remediation, demonstrating up to 99% degradation of methylene blue molecules within 50 min and 95% degradation of tetracycline within 100 min under ultraviolet‐visible light source. This remarkable performance can be attributed to the abundant electrochemical active sites, internal voids facilitating efficient light harvesting with coil morphology, amplified localized surface plasmon resonance at the plasmonic nanoparticle‐semiconductor interface, and effective band engineering. The innovative approach utilizing bimetallic alloys demonstrates precise geometric control and design of intricate multicomponent hybrid composites, showcasing the potential for developing versatile hollow nanomaterials for catalytic applications.This article is protected by copyright. All rights reserved

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Section: Introductionmentioning

confidence: 99%

One‐Step Electrochemical Synthesis of Multiyolk–Shell Nanocoils for Exceptional Photocatalytic Performance

Moon,

Oh,

Koo

et al. 2024

Advanced Materials

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“…In fact, a large number of studies on self-organized materials obtained by anodic dissolution or cathodic electrodeposition of metals, , alloys, , and semiconductors , have been reported. In addition to the wide variety of systems, spatiotemporal patterns obtained in such processes vary from filaments, , dendrites, , nanotrees, multilayers, ,, and spiral waves , to helices. − This variety is why electrochemical systems have attracted attention for the production of materials based on self-organization.…”

Section: Introductionmentioning

confidence: 99%

Two-Dimensionally Grown Periodic Pores Formed by Anodization of p-Type Silicon in Concentrated NH₄F Aqueous Solution: A Platform for Maskless Patterning of Metals by Electrodeposition

2023

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Self-organization is a fascinating topic in electrochemical processing because sophisticated structures are easily fabricated. Although the formation of many self-organized morphologies has been reported in the cathodic electrodeposition of metals and alloys, almost all the structures obtained via anodization were cylindrical pores grown perpendicular to the surface. Thus, a bottleneck exists for the production of microstructures laterally grown on substrates. Among self-organized structures grown via anodization, two-dimensional patterns formed during the anodization of Si in a concentrated NH4F aqueous solution are rare examples because two-dimensional pore growth occurs in this system. Here, we investigate the two-dimensional pattern formation on Si in the anodization and propose a mechanism for the pattern formation process. Our results suggest that SiF x species should exist stably in the highly concentrated NH4F aqueous solution and likely play a key role in the two-dimensional pattern formation. By controlling the reactivities of SiO2 and SiF x , we demonstrate that the electrodeposition of Au occurs selectively not on the original Si surface but within the two-dimensional pores.

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Electrical Resistivity Modification of Electrodeposited Mo and Mo–Co Nanowires for Interconnect Applications

Moon,

Kim,

Lee

et al. 2024

Engineering

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Engineering the shape of one-dimensional metallic nanostructures via nanopore electrochemistry

Cited by 4 publications

References 38 publications

One‐Step Electrochemical Synthesis of Multiyolk–Shell Nanocoils for Exceptional Photocatalytic Performance

One‐Step Electrochemical Synthesis of Multiyolk–Shell Nanocoils for Exceptional Photocatalytic Performance

Two-Dimensionally Grown Periodic Pores Formed by Anodization of p-Type Silicon in Concentrated NH₄F Aqueous Solution: A Platform for Maskless Patterning of Metals by Electrodeposition

Electrical Resistivity Modification of Electrodeposited Mo and Mo–Co Nanowires for Interconnect Applications

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Engineering the shape of one-dimensional metallic nanostructures via nanopore electrochemistry

Cited by 4 publications

References 38 publications

One‐Step Electrochemical Synthesis of Multiyolk–Shell Nanocoils for Exceptional Photocatalytic Performance

One‐Step Electrochemical Synthesis of Multiyolk–Shell Nanocoils for Exceptional Photocatalytic Performance

Two-Dimensionally Grown Periodic Pores Formed by Anodization of p-Type Silicon in Concentrated NH4F Aqueous Solution: A Platform for Maskless Patterning of Metals by Electrodeposition

Electrical Resistivity Modification of Electrodeposited Mo and Mo–Co Nanowires for Interconnect Applications

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Two-Dimensionally Grown Periodic Pores Formed by Anodization of p-Type Silicon in Concentrated NH₄F Aqueous Solution: A Platform for Maskless Patterning of Metals by Electrodeposition