Applications and sustainability. The thermal hysteresis for oxygen content for HEO1-n is only ~20 °C, which is small compared to previous reports for other RMnO3 previously. The HEO1-n material is thus well equipped for temperature swing absorption processes as only a small temperature change is needed for absorption and release. Both larger R and Ti-doping stabilizes higher oxygen contents to higher temperatures, where the exchange kinetics are naturally faster. However, Ti-doping 'smears out' the temperature interval of oxidation compared to undoped samples. The broader temperature interval and faster oxygen exchange kinetics makes Ti-doped samples like the HEO2-n materials more suitable for pressure swing absorption than temperature swing.