Plasma catalytic ammonia synthesis on Ni nanoparticles: The size effect

Herein we demonstrate the synthesis of ammonia via atmospheric DBD plasma discharge over nickel nanoparticles supported on silica. We evaluated the performance of nickel nanoparticles with average sizes of 5.6nm and 13.5 nm. The smallest nanoparticle size sample resulted in an ammonia synthesis rate...

Full description

Saved in:
Bibliographic Details
Published inJournal of catalysis Vol. 393
Main Authors Gorky, Fnu, Best, Anthony, Jasinski, Jacek, Allen, Bryan J., Alba-Rubio, Ana C., Carreon, Maria L.
Format Journal Article
LanguageEnglish
Published United States Elsevier 08.12.2020
Subjects
ammonia
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
nickel nanoparticles
non-thermal plasma
non-thermal plasma, ammonia, nickel nanoparticles
silica
Online AccessGet full text

Cover

More Information
Summary:Herein we demonstrate the synthesis of ammonia via atmospheric DBD plasma discharge over nickel nanoparticles supported on silica. We evaluated the performance of nickel nanoparticles with average sizes of 5.6nm and 13.5 nm. The smallest nanoparticle size sample resulted in an ammonia synthesis rate at least 2 times higher than that of the larger nanoparticle size sample and nickel bulk at equimolar composition. This allowed us to observe experimentally, for the first time, the size effect in the area of plasma catalysis. Moreover, the presented results allowed us to investigate a hydrogen sink metal such as nickel under atmospheric plasma conditions and determine the gas composition that resulted beneficial for this surface chemistry.
Bibliography:SC0021309
USDOE Office of Science (SC), Fusion Energy Sciences (FES)
ISSN:0021-9517
1090-2694