Size-Dependent Kinetics of Hydriding and Dehydriding of Pd Nanoparticles Научная публикация
Журнал |
Physical Review Letters
ISSN: 0031-9007 , E-ISSN: 1079-7114 |
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Вых. Данные | Год: 2010, Том: 104, Номер: 13, Страницы: 135502 Страниц : 4 DOI: 10.1103/PhysRevLett.104.135502 | ||||
Ключевые слова | SMALL PALLADIUM PARTICLES; HYDROGEN STORAGE; METAL NANOPARTICLES; DESORPTION-KINETICS; SURFACE; STRAIN; PHASE | ||||
Авторы |
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Реферат:
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.
Библиографическая ссылка:
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
Файлы:
Полный текст от издателя
Даты:
Поступила в редакцию: | 24 мар. 2009 г. |
Опубликована online: | 31 мар. 2010 г. |
Опубликована в печати: | 1 апр. 2010 г. |
Идентификаторы БД:
Web of science | WOS:000276260800026 |
Scopus | 2-s2.0-77950432888 |
РИНЦ | 15320911 |
Chemical Abstracts | 2010:426972 |
Chemical Abstracts (print) | 152:601594 |
OpenAlex | W2050182453 |