Pom-pom-like nanowire clusters prepared by potentiostatic oxidation of copper in NH4HCO3 solution

Anna Brudzisz; Damian Giziński; Ewa Wierzbicka; Krzysztof Karczewski; Urša Tiringer; Peyman Taheri; Wojciech J. Stępniowski

doi:10.1016/j.surfcoat.2021.127674

Pom-pom-like nanowire clusters prepared by potentiostatic oxidation of copper in NH₄HCO₃ solution

Anna Brudzisz^*, Damian Giziński, Ewa Wierzbicka, Krzysztof Karczewski, Urša Tiringer, Peyman Taheri, Wojciech J. Stępniowski

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

3 Citations (Scopus)

Abstract

Formation of hemispherical pom-pom-like clusters of nanowires during potentiostatic oxidation of copper in NH₄HCO₃ is reported. High-purity copper was oxidized in a three-electrode setup at constant electrode potential ranging from 200 mV to 1000 mV vs. Ag|AgCl|sat. KCl for 14 h. The obtained clusters of nanwires were examined using FE-SEM, XRD and XPS techniques. The diameter of nanowires, composed mainly of CuO, Cu₂O, Cu(OH)₂, and Cu₄O₃, was ca. 50–70 nm. The diameter of the clusters strongly depends both on the applied potential and the time of electrooxidation, and was found to be in the range of 1–3 μm. The mechanism for the formation of such nanowires clusters is proposed.

Original language	English
Article number	127674
Number of pages	9
Journal	Surface and Coatings Technology
Volume	425
DOIs	https://doi.org/10.1016/j.surfcoat.2021.127674
Publication status	Published - 2021

Keywords

Copper electrooxidation
Copper(II) hydroxide
Cuprite
Nanostructures
Tenorite

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10.1016/j.surfcoat.2021.127674

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title = "Pom-pom-like nanowire clusters prepared by potentiostatic oxidation of copper in NH4HCO3 solution",

abstract = "Formation of hemispherical pom-pom-like clusters of nanowires during potentiostatic oxidation of copper in NH4HCO3 is reported. High-purity copper was oxidized in a three-electrode setup at constant electrode potential ranging from 200 mV to 1000 mV vs. Ag|AgCl|sat. KCl for 14 h. The obtained clusters of nanwires were examined using FE-SEM, XRD and XPS techniques. The diameter of nanowires, composed mainly of CuO, Cu2O, Cu(OH)2, and Cu4O3, was ca. 50–70 nm. The diameter of the clusters strongly depends both on the applied potential and the time of electrooxidation, and was found to be in the range of 1–3 μm. The mechanism for the formation of such nanowires clusters is proposed.",

keywords = "Copper electrooxidation, Copper(II) hydroxide, Cuprite, Nanostructures, Tenorite",

author = "Anna Brudzisz and Damian Gizi{\'n}ski and Ewa Wierzbicka and Krzysztof Karczewski and Ur{\v s}a Tiringer and Peyman Taheri and St{\c e}pniowski, {Wojciech J.}",

year = "2021",

doi = "10.1016/j.surfcoat.2021.127674",

language = "English",

volume = "425",

journal = "Surface and Coatings Technology",

issn = "0257-8972",

publisher = "Elsevier",

}

Pom-pom-like nanowire clusters prepared by potentiostatic oxidation of copper in NH₄HCO₃ solution. / Brudzisz, Anna; Giziński, Damian; Wierzbicka, Ewa; Karczewski, Krzysztof; Tiringer, Urša ; Taheri, Peyman; Stępniowski, Wojciech J.

In: Surface and Coatings Technology, Vol. 425, 127674, 2021.

Research output: Contribution to journal › Article › Scientific › peer-review

TY - JOUR

T1 - Pom-pom-like nanowire clusters prepared by potentiostatic oxidation of copper in NH4HCO3 solution

AU - Brudzisz, Anna

AU - Giziński, Damian

AU - Wierzbicka, Ewa

AU - Karczewski, Krzysztof

AU - Tiringer, Urša

AU - Taheri, Peyman

AU - Stępniowski, Wojciech J.

PY - 2021

Y1 - 2021

N2 - Formation of hemispherical pom-pom-like clusters of nanowires during potentiostatic oxidation of copper in NH4HCO3 is reported. High-purity copper was oxidized in a three-electrode setup at constant electrode potential ranging from 200 mV to 1000 mV vs. Ag|AgCl|sat. KCl for 14 h. The obtained clusters of nanwires were examined using FE-SEM, XRD and XPS techniques. The diameter of nanowires, composed mainly of CuO, Cu2O, Cu(OH)2, and Cu4O3, was ca. 50–70 nm. The diameter of the clusters strongly depends both on the applied potential and the time of electrooxidation, and was found to be in the range of 1–3 μm. The mechanism for the formation of such nanowires clusters is proposed.

AB - Formation of hemispherical pom-pom-like clusters of nanowires during potentiostatic oxidation of copper in NH4HCO3 is reported. High-purity copper was oxidized in a three-electrode setup at constant electrode potential ranging from 200 mV to 1000 mV vs. Ag|AgCl|sat. KCl for 14 h. The obtained clusters of nanwires were examined using FE-SEM, XRD and XPS techniques. The diameter of nanowires, composed mainly of CuO, Cu2O, Cu(OH)2, and Cu4O3, was ca. 50–70 nm. The diameter of the clusters strongly depends both on the applied potential and the time of electrooxidation, and was found to be in the range of 1–3 μm. The mechanism for the formation of such nanowires clusters is proposed.

KW - Copper electrooxidation

KW - Copper(II) hydroxide

KW - Cuprite

KW - Nanostructures

KW - Tenorite

UR - http://www.scopus.com/inward/record.url?scp=85114670806&partnerID=8YFLogxK

U2 - 10.1016/j.surfcoat.2021.127674

DO - 10.1016/j.surfcoat.2021.127674

M3 - Article

AN - SCOPUS:85114670806

VL - 425

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

SN - 0257-8972

M1 - 127674

ER -

Pom-pom-like nanowire clusters prepared by potentiostatic oxidation of copper in NH₄HCO₃ solution

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Keywords

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