Saeid Akrami

TL;DR: High-entropy ceramics with five or more cations have recently attracted significant attention due to their superior properties for various structural and functional applications as mentioned in this paper, and significant efforts were started to increase the entropy, minimize the Gibbs free energy, and achieve stable single-phase high-entropically stable ceramic films.

TL;DR: In this article, a dual-phase TiZrNbHfTaO11 synthesized by a two-step high-pressure torsion mechanical alloying and high-temperature oxidation was examined for CO2 conversion.

TL;DR: In this article , oxygen vacancies and lattice strain are simultaneously introduced in this oxide using a high-pressure torsion process to overcome the drawbacks of BiVO4, and the enhancement of photocatalytic activity is discussed based on the modification of band structure, enhanced light absorbance, and role of oxygen vacancies as activation sites for CO2 photoreduction.

TL;DR: In this article, the nanocrystalline high-pressure TiO2-II polymorph, synthesized by a high pressure technique, shows higher photocurrent and better photocatalytic activity for CO2 to CO conversion compared to the anatase phase.

TL;DR: In this article , a high-entropy oxynitride was introduced as an active photocatalyst for photoreduction, which had a chemical composition of TiZrNbHfTaO$_6$N$_3$ and was produced by a high pressure torsion method followed by oxidation and nitriding.