Hierarchical Cu@MnO2 Core-shell Nanowires: A Nonprecious-Metal Catalyst with an Excellent Catalytic Activity Toward the Reduction of 4-Nitrophenol

摘要

A nonprecious catalyst of hierarchical Cu@MnO2 core-shell nanowires was fabricated by a facile hydrothermal route and the nanostructured material showed a high catalytic activity toward the reduction of 4-nitrophenol in the presence of NaBH4. With an intact core-shell structure and porous MnO2 shell, the Cu@MnO2 nanowires exhibited an excellent catalytic activity with an activity factor of 571 s(-1) g(-1) and high recyclability with a conversion of 96% after seven catalytic cycles.