Influence of natural convection on the electrodeposition of copper nanowires in anodic aluminium oxide templates

被引：8

作者：

Kalinin, I. A. ^{[1
,2
]}

Davydov, A. D. ^{[3
]}

Leontiev, A. P.

Napolskii, K. S. ^{[2
,4
]}

Sobolev, A. ^{[3
,5
]}

Shatalov, M. ^{[5
]}

Zinigrad, M. ^{[5
]}

Bograchev, D. ^{[1
]}

机构：

[1] Ariel Univ, Dept Chem Sci, IL-40700 Ariel, Israel

[2] Lomonosov Moscow State Univ, Dept Mat Sci, Moscow 119991, Russia

[3] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Moscow 119071, Russia

[4] Lomonosov Moscow State Univ, Dept Chem, Moscow 119991, Russia

[5] Ariel Univ, Dept Chem Engn, IL-40700 Ariel, Israel

来源：

ELECTROCHIMICA ACTA | 2023年 / 441卷

基金：

俄罗斯科学基金会;

关键词：

Nanowires; Templated electrodeposition; Anodic aluminium oxide; Natural convection; Mathematical modeling; ELECTROCHEMICAL DEPOSITION; MORPHOLOGICAL INSTABILITY; ARRAYS; GROWTH; SIMULATION; METALS; PORES; MODEL;

D O I：

10.1016/j.electacta.2022.141766

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Templated electrodeposition is a versatile method for preparing metal nanostructures. Among the various parameters of this process, the effect of convection on the deposition process is less explored. The present work is devoted to the experimental and theoretical study of the influence of natural convection near nanoporous anodic aluminium oxide templates on the deposition of nanowires. Electrochemical deposition of copper nanowires was carried out with vertical templates parallel to the gravitational acceleration at various overpotentials. A model of nanowire electrodeposition was developed based on the Navier-Stokes and diffusion equations. The length profiles of the nanowires, experimentally measured using scanning electron microscopy, were compared with the results of the numerical simulation. The simulation results were also compared with current-time transients recorded during metal electrodeposition into nanopores. In addition, an analytical expression has been proposed to describe the evolution of the deposition current density into nanopores under natural convection conditions.

引用

页数：7

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