Microreactor based on trimetallic nano-oxides obtained by in situ growth from German silver alloy

ANA P. CABELLO; MAYRA A. FRANCO MURCIA; MARÍA A. ULLA; JUAN M. ZAMARO

Catalysts

MDPI

Lugar: Basel; Año: 2023 vol. 13 p. 1 - 13

2073-4344

Nanostructured films of copper, zinc, and nickel oxides were obtained from a controlledoxidation of the ternary nickel silver (Cu-Zn-Ni) substrates through a one-pot, green, and lowtemperature vapor-based treatment. Brief contact of the alloy with ammonia and hydrogen peroxidevapors at room temperature originates a mixture of nanometric copper, zinc, and nickel oxides atits surface. The growths evolve with time and temperature, generating a layered film with highlydispersed copper nano-oxides/hydroxides on a base of zinc and nickel oxides. The composition,configuration, and way of obtaining these films make them green catalysts, which are highly activeand stable for a carbon monoxide oxidation reaction.