Freestanding mesoporous quasi-single-crystalline CO3O4 nanowire arrays.
We report a facile template-free method for the large-area growth of freestanding hollow Co3O4 nanowire arrays on a variety of substrates including transparent conducting glass, Si wafer, and copper foil, et al. These nanowires have the interesting combined properties of mesoporosity and quasi-single-crystallinity. With their high surface area and crystallinity, and their direct growth on conductive substrate, these Co3O4 nanowire arrays will have promising applications in lithium-ion batteries, chemical sensing, and field-emission and electrochromic devices. Using the prepared nanowire arrays as electrode, an electrochemical sensor for hydrogen peroxide sensing has been demonstrated.
Li
Yanguang
Y
Department of Chemistry, The Ohio State University, Columbus, Ohio 43210, USA.
Tan
Bing
B
Wu
Yiying
Y