Understanding the selective etching of electrodeposited ZnO nanorods
Understanding the selective etching of electrodeposited ZnO nanorods
ZnO nanotubes were prepared by selective dissolution of electrodeposited nanorods. The effect of solution pH, rod morphology, and chloride ion concentration on the dissolution mechanism was studied. The selective etching was rationalized in terms of the surface energy of the different ZnO crystal faces and reactant diffusion. The nanorod diameter and chloride concentration are the most influential parameters on the dissolution mechanism because they control homogeneous dissolution or selective etching of the (110) and (002) surfaces. Bulk solution pH only has an effect on the rate of dissolution. By accurate control of the dissolution process, the nanomorphology can be tailored, and the formation of rods with a thin diameter (10-20 nm), cavity, or ultra-thin-walled tubes (2-5 nm) can be achieved.
14079-14085
Illy, Benoit N.
11d82733-59e6-4766-b368-0ec8bc3b03b7
Ingham, Bridget
1f7dc5c9-9f79-49fb-b114-336f24432e78
Toney, Michael F.
2afadeb0-01a9-4c05-a8d0-74a75adbfef3
Nandhakumar, Iris
e9850fe5-1152-4df8-8a26-ed44b5564b04
Ryan, Mary P.
254bed6a-2f41-4e5e-ae37-3e3884c01190
25 November 2014
Illy, Benoit N.
11d82733-59e6-4766-b368-0ec8bc3b03b7
Ingham, Bridget
1f7dc5c9-9f79-49fb-b114-336f24432e78
Toney, Michael F.
2afadeb0-01a9-4c05-a8d0-74a75adbfef3
Nandhakumar, Iris
e9850fe5-1152-4df8-8a26-ed44b5564b04
Ryan, Mary P.
254bed6a-2f41-4e5e-ae37-3e3884c01190
Illy, Benoit N., Ingham, Bridget, Toney, Michael F., Nandhakumar, Iris and Ryan, Mary P.
(2014)
Understanding the selective etching of electrodeposited ZnO nanorods.
Langmuir, 30 (46), .
(doi:10.1021/la503765a).
(PMID:25359631)
Abstract
ZnO nanotubes were prepared by selective dissolution of electrodeposited nanorods. The effect of solution pH, rod morphology, and chloride ion concentration on the dissolution mechanism was studied. The selective etching was rationalized in terms of the surface energy of the different ZnO crystal faces and reactant diffusion. The nanorod diameter and chloride concentration are the most influential parameters on the dissolution mechanism because they control homogeneous dissolution or selective etching of the (110) and (002) surfaces. Bulk solution pH only has an effect on the rate of dissolution. By accurate control of the dissolution process, the nanomorphology can be tailored, and the formation of rods with a thin diameter (10-20 nm), cavity, or ultra-thin-walled tubes (2-5 nm) can be achieved.
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e-pub ahead of print date: 30 October 2014
Published date: 25 November 2014
Identifiers
Local EPrints ID: 395560
URI: http://eprints.soton.ac.uk/id/eprint/395560
ISSN: 0743-7463
PURE UUID: e66a2cdf-1c5c-43a1-a982-c2eb428c5607
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Date deposited: 01 Jun 2016 10:26
Last modified: 15 Mar 2024 02:57
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Contributors
Author:
Benoit N. Illy
Author:
Bridget Ingham
Author:
Michael F. Toney
Author:
Mary P. Ryan
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