Synthesis and Crystal Structure of Rutile-type ScTa2O5N

Autor:	Sevilay Cosgun, Martin Rohloff, Ulrich Gernert, Anna Fischer, Martin Lerch, Caren Göbel
Rok vydání:	2014
Předmět:	Inorganic Chemistry Tetragonal crystal system Crystallography Chemistry Band gap Rutile Phase (matter) X-ray crystallography Analytical chemistry Water splitting Crystal structure Characterization (materials science)
Zdroj:	Zeitschrift für anorganische und allgemeine Chemie. 640:2771-2775
ISSN:	0044-2313
Popis:	A new phase in the system Sc-Ta-O-N was synthesized by reaction of an amorphous oxide precursor with a gaseous NH3/O2 mixture at 800 °C. Crystal structure determination was performed using X-ray powder data. ScTa2O5N crystallizes in the tetragonal space group P42/mnm (rutile-type structure) and exhibits a brilliant yellow color (optical bandgap: 2.67 eV), making it a promising material for photocatalytical water splitting. Further investigation methods (SEM, TEM, and N2-physisorption) were applied for more detailed characterization of the new phase. Unfortunately, the new compound could not be prepared as pure phase. So far a phase purity of ca. 90 % was the best result.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::012e44178924cf70a4332d11d4d5a638 https://doi.org/10.1002/zaac.201400325 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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