2026-06-03T06:26:12Z
https://icatplus.esrf.fr/oaipmh/request
oai:icatplus.esrf.fr:inv/2032079234
2025-04-06T06:00:29.397Z
4.2
EI
10.15151/ESRF-ES-2032079234
Alessandro LONGO
Alessandro
Longo
0000-0002-8819-2128
Alessandro LONGO
Alessandro
Longo
0000-0002-8819-2128
Marco SCAVINI
Marco
Scavini
Marco SCAVINI
Marco
Scavini
Marco PINNA
Marco
Pinna
0000-0003-3787-9920
Marco PINNA
Marco
Pinna
0000-0003-3787-9920
Andrea TRAPLETTI
Andrea
Trapletti
0009-0006-1482-8134
Andrea TRAPLETTI
Andrea
Trapletti
0009-0006-1482-8134
Stefano CHECCHIA
Stefano
Checchia
0000-0003-0499-4885
Federico BIANCONI
Federico
Bianconi
Federico BIANCONI
Federico
Bianconi
Pietro TETTAMANTI
Pietro
Tettamanti
Pietro TETTAMANTI
Pietro
Tettamanti
Diffraction Investigation of the Oxygen Storage Capacity of RE doped Cerium oxides functional materials under reducing conditions by means o
Example Institute
2028
Data from large facility measurement
2025-04-01T06:00:00Z/2025-04-06T06:00:00Z
2025-04-06T06:00:00Z
I
CC-BY-4.0
We aim determining the concentration of oxygen vacancies due to dynamic equilibrium with a reducing atmosphere as a function of doping rate as well as the consequent structural distortions in rare earths doped ceria solid solutions (Ce1-xRExO2-x/2-d, x=0, 0.125, 0.25. RE=Yb, Y, Sm, Nd, La) This is fundamental to comprehend their catalytic and transport properties of these materials Samples will be measured in an in-situ cell upon reducing (He/CO 5%) and oxidizing condtions (He/O2 20%) at different temperature raging from RT to 750 °C While it is believed that RE3+ doping should progressively suppress the formation of additional vacancies (δ=0), in a previous XRPD/PDF experiment dedicated to RE=Gd system we demonstrated that d>0 even for high dopant concentrations and we individuated the PDF fingerprints of Vo formations and of the induced structural disorder. In this proposal we desire to extend the investigation to other RE dopants, to map the extension of disorder as a function of RE