Hollow Ru/RuO₂ nanospheres with nanoparticulate shells for high performance electrocatalytic oxygen evolution reactions.

ABSTRACT: This work shows that hollow Ru/RuO₂ nanoparticles having nanoparticulate shells (HN-Ru/RuO₂) can be prepared using hollow microporous organic polymers with Ru species (H-MOP-Ru) as precursors. Using silica spheres as templates, H-MOPs were prepared through the Sonogashira-Hagihara coupling of 1,3,5-triethynylbenzene with 2,3-ethoxymethylenedioxy-1,4-diiodobenzene. Acid hydrolysis of cyclic ethyl orthoformate protecting groups generated catechol moieties to form H-MOP-Cat. Then, H-MOP-Ru was obtained by incorporating Ru species into H-MOP-Cat. Heat-treatment of H-MOP-Ru under air induced the formation of HN-Ru/RuO₂ with a diameter of 61 nm and shells consisting of 6-7 nm nanoparticles. Due to the hollow structure and nanoparticulate shells, HN-Ru/RuO_2</

SUBMITTER: Cho K 

PROVIDER: S-EPMC10825940 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature