09.01.2020

Oxygen storage materials – seminar


Academic Centre for Materials and Nanotechnology AGH UST invites for a seminar that will be held on 9th January, 2020, at 4.00 pm.

A lecture titled “Oxygen storage materials” will be given by professor Konrad Świerczek (Faculty of Energy and Fuels AGH UST).

Venue: Academic Centre for Materials and Nanotechnology AGH UST (Kawiory 30 Street, building D-16, auditorium room 1.02A)

An abstract of the lecture

In a search for alternative means of oxygen gas production, which can replace expensive cryogenic distillation of air, the separation-type methods have been found as very promising; for example, the pressure-swing adsorption (PSA) technology is already in use. Apart from PSA, the temperature-swing adsorption (TSA) or the combined methods can be also applied. In those technologies materials that have a selective ability to adsorb air constituents play a key role. Commonly, they are named as the oxygen storage materials (OSM). Recently it was shown that in PSA and TSA processes new compounds, which possess ability to incorporate/release oxygen into/from their crystal structure, may be also successfully utilized. It the presentation, two groups of OSMs (BaLnMn2O5+δ double perovskites and LnMnO3+δ hexagonal oxides; Ln: selected lanthanides) will be discussed concerning their practical application, but more importantly, from a point of view unique changes of the structural and other physicochemical properties induced by the varying oxygen content. Additionally, strategies aimed at development of successful OSMs for will be presented.