Size-Dependent Kinetics of Hydriding and Dehydriding of Pd Nanoparticles Full article
Journal |
Physical Review Letters
ISSN: 0031-9007 , E-ISSN: 1079-7114 |
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Output data | Year: 2010, Volume: 104, Number: 13, Pages: 135502 Pages count : 4 DOI: 10.1103/PhysRevLett.104.135502 | ||||
Tags | SMALL PALLADIUM PARTICLES; HYDROGEN STORAGE; METAL NANOPARTICLES; DESORPTION-KINETICS; SURFACE; STRAIN; PHASE | ||||
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Abstract:
Using a new indirect nanoplasmonic sensing method with subsecond resolution, we have studied hydriding and dehydriding kinetics of Pd nanoparticles in the size range 1.8–5.4 nm. Strong particle-size effects are observed. The scaling of the hydriding and dehydriding time scales satisfies power and power-exponential laws. The former (with an exponent of 2.9) is in perfect agreement with Monte Carlo simulations of diffusion-controlled hydriding kinetics. The latter is explained by the effect of surface tension on hydrogen desorption from the surface layer. The approach is generalizable to other reactant-nanoparticle systems.
Cite:
Langhammer C.
, Zhdanov V.P.
, Zorić I.
, Kasemo B.
Size-Dependent Kinetics of Hydriding and Dehydriding of Pd Nanoparticles
Physical Review Letters. 2010. V.104. N13. P.135502. DOI: 10.1103/PhysRevLett.104.135502 WOS Scopus РИНЦ
Size-Dependent Kinetics of Hydriding and Dehydriding of Pd Nanoparticles
Physical Review Letters. 2010. V.104. N13. P.135502. DOI: 10.1103/PhysRevLett.104.135502 WOS Scopus РИНЦ
Files:
Full text from publisher
Dates:
Submitted: | Mar 24, 2009 |
Published online: | Mar 31, 2010 |
Published print: | Apr 1, 2010 |
Identifiers:
Web of science | WOS:000276260800026 |
Scopus | 2-s2.0-77950432888 |
Elibrary | 15320911 |
Chemical Abstracts | 2010:426972 |
Chemical Abstracts (print) | 152:601594 |
OpenAlex | W2050182453 |