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Article: Precise control of nanohoneycomb ordering over anodic aluminum oxide of square centimeter areas

TitlePrecise control of nanohoneycomb ordering over anodic aluminum oxide of square centimeter areas
Authors
Keywordsanodic aluminum oxide
characterizations
grain orientation
nanoindentation
nanoporous materials
nanostructures
Issue Date2011
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/cm
Citation
Chemistry Of Materials, 2011, v. 23 n. 23, p. 5264-5268 How to Cite?
AbstractLarge-area nanoporous anodic aluminum oxide (AAO) films with well-controlled pore ordering are highly desirable for making nanotechnological devices with consistent performance. We report here a novel method to precisely control the ordering of the AAO pores over unprecedented large areas in the square millimeter to square centimeter range. Our experiments show that AAO films grown on large [001]-oriented Al grains in oxalic acid exhibit ideal close packing, whereas those grown on [101] grains do not show any resemblance to close packing. Other orientations give rise to intermediate pore ordering. Thus, through careful conditioning of the orientation of the Al substrate, the AAO pore ordering can be actively controlled, and this method should enable systematic and industrial-scale exploitation of the AAO properties versus pore ordering. © 2011 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/144552
ISSN
2015 Impact Factor: 9.407
2015 SCImago Journal Rankings: 4.232
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants CouncilHKU7156/08E
University Grants Committee of the Hong Kong Special Administration Region, People's Republic of ChinaSEG-HKU06
Croucher Foundation
Funding Information:

We thank Prof. B. J. Duggan for kindly providing the Al slabs used in this study and suggesting the conditions for recrystallization. The work described in this paper was supported by grants from the Research Grants Council (Project HKU7156/08E), as well as from the University Grants Committee (Project SEG-HKU06) of the Hong Kong Special Administration Region, People's Republic of China. A.H.W.N. acknowledges support in the form of a Senior Research Fellowship from the Croucher Foundation. We also thank C. Cheng for helpful discussions.

References

 

DC FieldValueLanguage
dc.contributor.authorNg, CKYen_HK
dc.contributor.authorNgan, AHWen_HK
dc.date.accessioned2012-02-03T06:13:28Z-
dc.date.available2012-02-03T06:13:28Z-
dc.date.issued2011en_HK
dc.identifier.citationChemistry Of Materials, 2011, v. 23 n. 23, p. 5264-5268en_HK
dc.identifier.issn0897-4756en_HK
dc.identifier.urihttp://hdl.handle.net/10722/144552-
dc.description.abstractLarge-area nanoporous anodic aluminum oxide (AAO) films with well-controlled pore ordering are highly desirable for making nanotechnological devices with consistent performance. We report here a novel method to precisely control the ordering of the AAO pores over unprecedented large areas in the square millimeter to square centimeter range. Our experiments show that AAO films grown on large [001]-oriented Al grains in oxalic acid exhibit ideal close packing, whereas those grown on [101] grains do not show any resemblance to close packing. Other orientations give rise to intermediate pore ordering. Thus, through careful conditioning of the orientation of the Al substrate, the AAO pore ordering can be actively controlled, and this method should enable systematic and industrial-scale exploitation of the AAO properties versus pore ordering. © 2011 American Chemical Society.en_HK
dc.languageengen_US
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/cmen_HK
dc.relation.ispartofChemistry of Materialsen_HK
dc.subjectanodic aluminum oxideen_HK
dc.subjectcharacterizationsen_HK
dc.subjectgrain orientationen_HK
dc.subjectnanoindentationen_HK
dc.subjectnanoporous materialsen_HK
dc.subjectnanostructuresen_HK
dc.titlePrecise control of nanohoneycomb ordering over anodic aluminum oxide of square centimeter areasen_HK
dc.typeArticleen_HK
dc.identifier.emailNgan, AHW:hwngan@hkucc.hku.hken_HK
dc.identifier.authorityNgan, AHW=rp00225en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/cm202461zen_HK
dc.identifier.scopuseid_2-s2.0-82955168440en_HK
dc.identifier.hkuros198563en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-82955168440&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume23en_HK
dc.identifier.issue23en_HK
dc.identifier.spage5264en_HK
dc.identifier.epage5268en_HK
dc.identifier.eissn1520-5002-
dc.identifier.isiWOS:000297598700021-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridNg, CKY=39861750400en_HK
dc.identifier.scopusauthoridNgan, AHW=7006827202en_HK

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