Phase formation of nanolaminated Mo2AuC and Mo-2(Au1-xGax)(2)C by a substitutional reaction within Au-capped Mo2GaC and Mo2Ga2C thin filmsShow others and affiliations
2017 (English)In: Nanoscale, ISSN 2040-3364, E-ISSN 2040-3372, Vol. 9, no 45, p. 17681-17687Article in journal (Refereed) Published
Abstract [en]
Au-containing nanolaminated carbides Mo2AuC and Mo-2(Au1-xGax)(2)C were synthesized by a thermally induced substitutional reaction in Mo2GaC and Mo2Ga2C, respectively. The Au substitution of the Ga layers in the structures was observed using cross-sectional high-resolution scanning transmission electron microscopy. Expansion of c lattice parameters was also observed in the Au-containing phases compared to the original phases. Energy dispersive spectroscopy detected residual Ga in Au-substituted layers of both phases with a peculiar Ga in-plane ordering for Au : Ga = 9 : 1 ratio along the Au-Ga layers in Mo-2(Au1-xGax)(2)C. These results indicate a generalization of the Au substitution reaction for the A elements in MAX phases.
Place, publisher, year, edition, pages
ROYAL SOC CHEMISTRY , 2017. Vol. 9, no 45, p. 17681-17687
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-143720DOI: 10.1039/c7nr03663aISI: 000416825000003PubMedID: 29119985OAI: oai:DiVA.org:liu-143720DiVA, id: diva2:1166750
Note
Funding Agencies|Swedish Foundation for Strategic Research (SSF) through the Synergy Grant FUNCASE; Swedish Foundation for Strategic Research (SSF) through the Research Infrastructure Fellow program [RIF14-0074]; VINN Excellence Center (VINNOVA) in research and innovation on Functional Nanoscale Materials (FunMat) by Swedish Governmental Agency for Innovation Systems; Knut and Alice Wallenberg (KAW) Foundation [KAW 2015.0043]; Linkoping Ultra Electron Microscopy Laboratory; Swedish Research Council [621-2012-4425, 642-2013-8020, 2013-4018, 2016-04412]
2017-12-152017-12-152018-01-03