Competition between Anion-Deficient Oxide and Oxyhydride Phases during the Topochemical Reduction of LaSrCoRuO₆.

ABSTRACT: Binary metal hydrides can act as low-temperature reducing agents for complex oxides in the solid state, facilitating the synthesis of anion-deficient oxide or oxyhydride phases. The reaction of LaSrCoRuO₆, with CaH₂ in a sealed tube yields the face-centered cubic phase LaSrCoRuO_3.2H_1.9. The reaction with LiH under similar conditions converts LaSrCoRuO₆ to a mixture of tetragonal LaSrCoRuO_4.8H_1.2 and cubic LaSrCoRuO_3.3H_2.13. The formation of the LaSrCoRuO_xH_y oxyhydride phases proceeds directly from the parent oxide, with no evidence for anion-deficient LaSrCoRuO_6-x intermediates, in contrast with many other topochemically synthesized transi

SUBMITTER: Liang Z 

PROVIDER: S-EPMC11256754 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature