Tuning the oxidation degree in sub-10 nm silver-oxide nanoparticles: From Ag2O monoxide to AgOx(x > 1) superoxide
2014 (English)In: Chemical Physics Letters, ISSN 0009-2614, E-ISSN 1873-4448, Vol. 600, 96-102 p.Article in journal (Refereed) Published
A preparation method for silver-oxide containing nanoparticles is described. The suggested approach allows varying the oxidation degree from monoxide to an oxygen-rich state resembling superoxide The method is based on magnetron reactive sputtering and vapour aggregation, and utilizes silver-oxygen interaction in the vapour phase - prior to the nanoparticle aggregation from the vapour. Synchrotron-based photoelectron spectroscopy - a local probing method with high chemical sensitivity - allows 'on-the-fly' analysis of the composition and oxidation degree in nanoparticles, before any deposition of the particles. Preparation and properties of oxygen-rich nanoparticles are discussed in connection to the catalytic processing of economically important hydrocarbons. (C) 2014 Elsevier B.V. All rights reserved.
Place, publisher, year, edition, pages
2014. Vol. 600, 96-102 p.
IdentifiersURN: urn:nbn:se:uu:diva-225014DOI: 10.1016/j.cplett.2014.03.063ISI: 000334854700018OAI: oai:DiVA.org:uu-225014DiVA: diva2:719592