Nanoscale coatings of AuAl<inf>x</inf> and PtAl<inf>x</inf> and their mesoporous elemental derivatives

Cortie, MB; Maaroof, A; Smith, GB; Ngoepe, P

Nanoscale coatings of AuAl<inf>x</inf> and PtAl<inf>x</inf> and their mesoporous elemental derivatives

Cortie, MB

Maaroof, A Smith, GB

Ngoepe, P

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Publication Type:: Journal Article
Citation:: Current Applied Physics, 2006, 6 (3), pp. 440 - 443
Issue Date:: 2006-06-01

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Field	Value	Language
dc.contributor.author	Cortie, MB https://orcid.org/0000-0003-3202-6398	en_US
dc.contributor.author	Maaroof, A	en_US
dc.contributor.author	Smith, GB https://orcid.org/0000-0002-6985-2880	en_US
dc.contributor.author	Ngoepe, P	en_US
dc.date.issued	2006-06-01	en_US
dc.identifier.citation	Current Applied Physics, 2006, 6 (3), pp. 440 - 443	en_US
dc.identifier.issn	1567-1739	en_US
dc.identifier.uri	http://hdl.handle.net/10453/750
dc.description.abstract	A method to produce nanoscale films of AuAlx and PtAlx, and their mesoporous elemental derivatives is described, and the morphology and optical properties of these coatings explored. The color of the AuAlx film is bright purple, in agreement with ab initio calculations and experimental observations for the compound AuAl2, but becomes black after de-alloying with NaOH. The film of PtAlx is silver-grey and changes to grey after being converted to mesoporous Pt by de-alloying. Both mesoporous coatings exhibit a very rough surface, with pores of between 2 and 20 nm in diameter, and display a significantly more absorptive optical characteristic compared to their ordinary elemental counterparts. © 2005 Elsevier B.V. All rights reserved.	en_US
dc.relation.ispartof	Current Applied Physics	en_US
dc.relation.isbasedon	10.1016/j.cap.2005.11.036	en_US
dc.subject.classification	Applied Physics	en_US
dc.title	Nanoscale coatings of AuAl<inf>x</inf> and PtAl<inf>x</inf> and their mesoporous elemental derivatives	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	6	en_US
utslib.for	0204 Condensed Matter Physics	en_US
utslib.for	01 Mathematical Sciences	en_US
utslib.for	02 Physical Sciences	en_US
dc.location.activity	UTS Sydney, Australia
dc.location.activity	Queenstown, NEW ZEALAND
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	open_access
pubs.issue	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	6	en_US

Abstract:

A method to produce nanoscale films of AuAlx and PtAlx, and their mesoporous elemental derivatives is described, and the morphology and optical properties of these coatings explored. The color of the AuAlx film is bright purple, in agreement with ab initio calculations and experimental observations for the compound AuAl2, but becomes black after de-alloying with NaOH. The film of PtAlx is silver-grey and changes to grey after being converted to mesoporous Pt by de-alloying. Both mesoporous coatings exhibit a very rough surface, with pores of between 2 and 20 nm in diameter, and display a significantly more absorptive optical characteristic compared to their ordinary elemental counterparts. © 2005 Elsevier B.V. All rights reserved.

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http://hdl.handle.net/10453/750