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Thermodynamics of Hydride Formation and Decomposition in Supported Sub-10 nm Pd Nanoparticles of Different Sizes Full article

Journal Chemical Physics Letters
ISSN: 0009-2614 , E-ISSN: 1873-4448
Output data Year: 2014, Volume: 603, Pages: 75-81 Pages count : 7 DOI: 10.1016/j.cplett.2014.04.036
Tags HYDROGEN-STORAGE; PALLADIUM; ABSORPTION; SOFT; DFT
Authors Wadell Carl 1 , Pingel Torben 1 , Olsson Eva 1 , Zorić Igor 1 , Zhdanov Vladimir P. 1,2 , Langhammer Christoph 1
Affiliations
1 Department of Applied Physics, Chalmers University of Technology, SE-421 96 Göteborg, Sweden
2 Boreskov Institute of Catalysis, Russian Academy of Sciences, Novosibirsk 630090, Russia

Funding (4)

1 Stiftelsen för strategisk forskning RMA11-0037
2 Swedish Research Council 2010-4041
3 Swedish Research Council for Environment Agricultural Sciences and Spatial Planning 229-2009-772
4 Knut and Alice Wallenberg Foundation

Abstract: Hydrogen storage properties of supported Pd nanoparticles with average sizes in the range 2.7–7.6 nm were studied using indirect nanoplasmonic sensing. For each particle size, a series of isotherms was measured and, through Van't Hoff analysis, the changes in enthalpy upon hydride formation/decomposition were determined. Contrary to the expected decrease of the enthalpy, due to increasing importance of surface tension in smaller particles, we observe a very weak size dependence in the size range under consideration. We attribute this to a compensation effect due to an increased fraction of hydrogen atoms occupying energetically favorable subsurface sites in smaller nanoparticles.
Cite: Wadell C. , Pingel T. , Olsson E. , Zorić I. , Zhdanov V.P. , Langhammer C.
Thermodynamics of Hydride Formation and Decomposition in Supported Sub-10 nm Pd Nanoparticles of Different Sizes
Chemical Physics Letters. 2014. V.603. P.75-81. DOI: 10.1016/j.cplett.2014.04.036 WOS Scopus РИНЦ ANCAN OpenAlex
Files: Full text from publisher
Dates:
Submitted: Feb 18, 2014
Accepted: Apr 18, 2014
Published online: Apr 26, 2014
Published print: May 30, 2014
Identifiers:
Web of science: WOS:000336485400016
Scopus: 2-s2.0-84900426717
Elibrary: 21877578
Chemical Abstracts: 2014:878263
Chemical Abstracts (print): 161:42962
OpenAlex: W2080278481
Citing:
DB Citing
Web of science 35
Scopus 34
Elibrary 34
OpenAlex 36
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