HIGHLIGH TS • Controversial reports exist in the lit erature regarding Ca/Mg intercalation in V 2 0 s-• Crystal structure elucidation of inter calated phases bas remained elusive to date. • Electrochemical and ex"'5itu XRD ex periments evidenoe formation of pro tonated phases. • Degradation of V 2 0s bas also been observed un der some conditions. • Oxidation of AV20s (A= Ca, Mg) prepared by solid state reaction was not feasible.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.