Omer Elmutasim, Aseel G Hussien, Abhishek Sharan, Sara AlKhoori, Michalis A Vasiliades, Inas Magdy Abdelrahman Taha, Seokjin Kim, Messaoud Harfouche, Abdul-Hamid Emwas, Dalaver H Anjum, Angelos M Efstathiou, Cafer T Yavuz, Nirpendra Singh, Kyriaki Polychronopoulou
In this work, a relatively new class of materials, rare earth (RE) based high entropy oxides (HEO) are discussed in terms of the evolution of the oxygen vacant sites (Ov ) content in their structure as the composition changes from binary to HEO using both experimental and computational tools; the composition of HEO under focus is the CeLaPrSmGdO due to the importance of ceria-related (fluorite) materials to catalysis. To unveil key features of quinary HEO structure, ceria-based binary CePrO and CeLaO compositions as well as SiO2 , the latter as representative nonreducible oxide, were used and compared as supports for Ru (6 wt % loading)...
April 29, 2024: ACS Applied Materials & Interfaces