We present the first example of Imma perovskite-type oxynitride. LaTiO(2)N was found to have an Imma perovskite-type structure with a(0)b(-)b(-) tilt system. The Ti-(O,N) covalent bonding and existence of N atoms are responsible for the reduced band gap of LaTiO(2)N photocatalyst.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/c0cc00573h | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Elucidating the impact of A-site cation change on photocatalytic H and O evolution activities of perovskite-type LnTaON (Ln = La and Pr).
Phys Chem Chem Phys
August 2017
Department of Materials Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
Transition metal (oxy)nitrides with perovskite-type structures have been regarded as one of the promising classes of inorganic semiconductor materials that can be used in solar water splitting systems for the production of hydrogen as a renewable and storable energy carrier. The performance of transition metal (oxy)nitrides in solar water splitting is strongly influenced by the crystal structure-related dynamics of photogenerated charge carriers. Here, we have systematically assessed the influence of A-site cation exchange on the visible-light-induced photocatalytic H and O evolution activities, photoanodic response, and dynamics of photogenerated charge carriers of perovskite-type LnTaON (Ln = La and Pr).
View Article and Find Full Text PDFAmmonothermal Synthesis of Crystalline Oxonitride Perovskites LnTaON (Ln=La, Ce, Pr, Nd, Sm, Gd).
Chemistry
August 2017
Department of Chemistry, University of Munich (LMU), Butenandtstrasse 5-13 (D), 81388, Munich, Germany.
The perovskite type oxonitridotantalates LnTaON with Ln=La, Ce, Pr, Nd, Sm, and Gd were synthesized by the ammonothermal method employing custom-built autoclaves made of nickel-based superalloy. Metal powders were reacted with NaOH and NaN as mineralizers under supercritical conditions with purified ammonia at temperature range of 870-1070 K and pressure values of 150-300 MPa. Crystal structures and the space groups were determined by using powder X-ray diffraction and refined by the Rietveld method.
View Article and Find Full Text PDFImma perovskite-type oxynitride LaTiO2N: structure and electron density.
Chem Commun (Camb)
July 2010
Department of Materials Science and Engineering, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Nagatsuta-cho 4259-J2-61, Midori-ku, Yokohama-shi, 226-8502, Japan.
We present the first example of Imma perovskite-type oxynitride. LaTiO(2)N was found to have an Imma perovskite-type structure with a(0)b(-)b(-) tilt system. The Ti-(O,N) covalent bonding and existence of N atoms are responsible for the reduced band gap of LaTiO(2)N photocatalyst.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!