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Article: Precise control of nanohoneycomb ordering over anodic aluminum oxide of square centimeter areas
Title | Precise control of nanohoneycomb ordering over anodic aluminum oxide of square centimeter areas | ||||||||
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Authors | |||||||||
Keywords | anodic aluminum oxide characterizations grain orientation nanoindentation nanoporous materials nanostructures | ||||||||
Issue Date | 2011 | ||||||||
Publisher | American 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? | ||||||||
Abstract | Large-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 Identifier | http://hdl.handle.net/10722/144552 | ||||||||
ISSN | 2023 Impact Factor: 7.2 2023 SCImago Journal Rankings: 2.421 | ||||||||
ISI Accession Number ID |
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 Field | Value | Language |
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dc.contributor.author | Ng, CKY | en_HK |
dc.contributor.author | Ngan, AHW | en_HK |
dc.date.accessioned | 2012-02-03T06:13:28Z | - |
dc.date.available | 2012-02-03T06:13:28Z | - |
dc.date.issued | 2011 | en_HK |
dc.identifier.citation | Chemistry Of Materials, 2011, v. 23 n. 23, p. 5264-5268 | en_HK |
dc.identifier.issn | 0897-4756 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/144552 | - |
dc.description.abstract | Large-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.language | eng | en_US |
dc.publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/cm | en_HK |
dc.relation.ispartof | Chemistry of Materials | en_HK |
dc.subject | anodic aluminum oxide | en_HK |
dc.subject | characterizations | en_HK |
dc.subject | grain orientation | en_HK |
dc.subject | nanoindentation | en_HK |
dc.subject | nanoporous materials | en_HK |
dc.subject | nanostructures | en_HK |
dc.title | Precise control of nanohoneycomb ordering over anodic aluminum oxide of square centimeter areas | en_HK |
dc.type | Article | en_HK |
dc.identifier.email | Ngan, AHW:hwngan@hkucc.hku.hk | en_HK |
dc.identifier.authority | Ngan, AHW=rp00225 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1021/cm202461z | en_HK |
dc.identifier.scopus | eid_2-s2.0-82955168440 | en_HK |
dc.identifier.hkuros | 198563 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-82955168440&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 23 | en_HK |
dc.identifier.issue | 23 | en_HK |
dc.identifier.spage | 5264 | en_HK |
dc.identifier.epage | 5268 | en_HK |
dc.identifier.eissn | 1520-5002 | - |
dc.identifier.isi | WOS:000297598700021 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Ng, CKY=39861750400 | en_HK |
dc.identifier.scopusauthorid | Ngan, AHW=7006827202 | en_HK |
dc.identifier.issnl | 0897-4756 | - |