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Grain-Growth Mediated Hydrogen Sorption Kinetics and Compensation Effect in Single Pd Nanoparticles Научная публикация

Журнал Nature Communications
ISSN: 2041-1723
Вых. Данные Год: 2021, Том: 12, Номер: 1, Номер статьи : 5427, Страниц : 10 DOI: 10.1038/s41467-021-25660-x
Ключевые слова nanocrystalline Pd; entropy; thermodynamics; spectroscopy; hysteresis; absorption; diffusion; oxidation; dynamics; defects
Авторы Alekseeva Svetlana 1 , Strach Michal 1 , Nilsson Sara 1 , Fritzsche Joachim 1 , Zhdanov Vladimir P. 1,2 , Langhammer Christoph 1
Организации
1 Department of Physics, Chalmers University of Technology, Göteborg, Sweden
2 Boreskov Institute of Catalysis, Russian Academy of Sciences, Novosibirsk, Russia

Информация о финансировании (4)

1 European Commission 678941 ERC-StG-2015 SINCAT
2 Фонд Кнута и Элис Валленберг 2015.0055
3 Фонд Кнута и Элис Валленберг 2016.0210
4 Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) 0239-2021-0011

Реферат: Grains constitute the building blocks of polycrystalline materials and their boundaries determine bulk physical properties like electrical conductivity, diffusivity and ductility. However, the structure and evolution of grains in nanostructured materials and the role of grain boundaries in reaction or phase transformation kinetics are poorly understood, despite likely importance in catalysis, batteries and hydrogen energy technology applications. Here we report an investigation of the kinetics of (de)hydriding phase transformations in individual Pd nanoparticles. We find dramatic evolution of single particle grain morphology upon cyclic exposure to hydrogen, which we identify as the reason for the observed rapidly slowing sorption kinetics, and as the origin of the observed kinetic compensation effect. These results shed light on the impact of grain growth on kinetic processes occurring inside nanoparticles, and provide mechanistic insight in the observed kinetic compensation effect.
Библиографическая ссылка: Alekseeva S. , Strach M. , Nilsson S. , Fritzsche J. , Zhdanov V.P. , Langhammer C.
Grain-Growth Mediated Hydrogen Sorption Kinetics and Compensation Effect in Single Pd Nanoparticles
Nature Communications. 2021. V.12. N1. 5427 :1-10. DOI: 10.1038/s41467-021-25660-x WOS Scopus РИНЦ CAPlusCA PMID OpenAlex OpenAlex
Даты:
Поступила в редакцию: 5 февр. 2021 г.
Принята к публикации: 19 авг. 2021 г.
Опубликована в печати: 14 сент. 2021 г.
Опубликована online: 14 сент. 2021 г.
Идентификаторы БД:
Web of science: WOS:000696024700011
Scopus: 2-s2.0-85115277280
РИНЦ: 47060479
Chemical Abstracts: 2021:2045282
Chemical Abstracts (print): 176:482823
PMID (PubMed): 34521841
OpenAlex: W3138461606 | W4229608484
Цитирование в БД:
БД Цитирований
Web of science 7
Scopus 7
РИНЦ 7
OpenAlex 8 2
Альметрики: