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Nanostructuring of Palladium with Low-Temperature Helium Plasma

Department of Nuclear, Plasma and Radiological Engineering, Center for Plasma Material Interactions, University Illinois at Urbana-Champaign, Urbana 61801, IL, USA
Author to whom correspondence should be addressed.
Academic Editors: Krasimir Vasilev and Thomas Nann
Nanomaterials 2015, 5(4), 2007-2018;
Received: 13 October 2015 / Revised: 12 November 2015 / Accepted: 20 November 2015 / Published: 25 November 2015
(This article belongs to the Special Issue Plasma Nanoengineering and Nanofabrication)
Impingement of high fluxes of helium ions upon metals at elevated temperatures has given rise to the growth of nanostructured layers on the surface of several metals, such as tungsten and molybdenum. These nanostructured layers grow from the bulk material and have greatly increased surface area over that of a not nanostructured surface. They are also superior to deposited nanostructures due to a lack of worries over adhesion and differences in material properties. Several palladium samples of varying thickness were biased and exposed to a helium helicon plasma. The nanostructures were characterized as a function of the thickness of the palladium layer and of temperature. Bubbles of ~100 nm in diameter appear to be integral to the nanostructuring process. Nanostructured palladium is also shown to have better catalytic activity than not nanostructured palladium. View Full-Text
Keywords: palladium; nanotendrils; helium bubbles; catalysis palladium; nanotendrils; helium bubbles; catalysis
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MDPI and ACS Style

Fiflis, P.; Christenson, M.P.; Connolly, N.; Ruzic, D.N. Nanostructuring of Palladium with Low-Temperature Helium Plasma. Nanomaterials 2015, 5, 2007-2018.

AMA Style

Fiflis P, Christenson MP, Connolly N, Ruzic DN. Nanostructuring of Palladium with Low-Temperature Helium Plasma. Nanomaterials. 2015; 5(4):2007-2018.

Chicago/Turabian Style

Fiflis, P., M.P. Christenson, N. Connolly, and D.N. Ruzic. 2015. "Nanostructuring of Palladium with Low-Temperature Helium Plasma" Nanomaterials 5, no. 4: 2007-2018.

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