Asymmetric Hysteresis in Nanoscopic Single-Metal Hydrides: Palladium Nanorings Full article
Journal |
The Journal of Physical Chemistry C
ISSN: 1932-7447 , E-ISSN: 1932-7455 |
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Output data | Year: 2012, Volume: 116, Number: 40, Pages: 21201-21207 Pages count : 7 DOI: 10.1021/jp3059273 | ||||||||
Tags | Hydrogen; Hydrogenation; Hysteresis; Nanorings; Nanostructured materials; Sorption | ||||||||
Authors |
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Affiliations |
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Funding (3)
1 | Swedish Research Council | 2010-4041 |
2 | Stiftelsen för strategisk forskning | RMA-08 |
3 | Swedish Research Council for Environment Agricultural Sciences and Spatial Planning | 229-2009-772 |
Abstract:
Using direct nanoplasmonic sensing (DNPS), we have studied hydrogen sorption in Pd nanorings with a constant average inner diameter of 240 nm and varying wall thickness. As the main finding we observe an unusual feature above a critical wall thickness in the appearance of a double plateau in the hydrogenation coexistence curve, whereas a single plateau is seen during dehydrogenation for all wall thicknesses. This is the first experimental observation of asymmetric hysteresis in a single metal system. We explain this effect by structural defect-related sample heterogeneity and the interplay of strain-dependent hydrogenation thermodynamics and kinetics.
Cite:
Langhammer C.
, Larsson E.M.
, Zhdanov V.P.
, Zorić I.
Asymmetric Hysteresis in Nanoscopic Single-Metal Hydrides: Palladium Nanorings
The Journal of Physical Chemistry C. 2012. V.116. N40. P.21201-21207. DOI: 10.1021/jp3059273 WOS Scopus РИНЦ
Asymmetric Hysteresis in Nanoscopic Single-Metal Hydrides: Palladium Nanorings
The Journal of Physical Chemistry C. 2012. V.116. N40. P.21201-21207. DOI: 10.1021/jp3059273 WOS Scopus РИНЦ
Dates:
Submitted: | Jun 16, 2012 |
Accepted: | Aug 29, 2012 |
Published online: | Oct 2, 2012 |
Published print: | Oct 11, 2012 |
Identifiers:
Web of science | WOS:000309649000008 |
Scopus | 2-s2.0-84867497695 |
Elibrary | 20495965 |
Chemical Abstracts | 2012:1370561 |
Chemical Abstracts (print) | 157:559258 |
OpenAlex | W1967736598 |