Beyond surface: Correlating CuI /CuII and O-vacancy surface sites in CuxO nanocubes with their activities as noble metal-free anodes for fuel cells - Rosado, Taissa F; Costa, Isael P; Nadier, Juliana; Avillez, Roberto Ribeiro de; Xing, Yutao; Solórzano, Guillermo; Silva, Augusto C A; Dourado, André Henrique Baraldi; Santos, Clenilton Costa dos; Faria, Vinicius W; Fraga, Marco A; Junior, Jaldyr; et al. (Surfaces and Interfaces, 2023)