Abstract

In this study, novel porous silver (Ag) monoliths have been successfully prepared via a facile process by combining an aging treatment with a thermal-induced reduction reaction. The obtained Ag samples display distinct morphologies via simply adjusting reaction conditions such as aging temperature and precursor’s concentrations. More interestingly, the as-made porous Ag samples exhibit superior catalytic activity and durability in the catalysis over reduction of P-nitrophenol (4-NP). Remarkably, the synergistic effects of stabilizing and oxidative etching agents should be responsible for the fabrication of hierarchical metallic monoliths, which highlight significant advantages over the existing techniques given that the present method is facile, inexpensive, environmentally benign, and amenable to scale-up process.

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