Next, the samples were dried over night at 40 C. The as-prepared nanowires were annealed at temperatures of 400, 500, 600, 700 and 900 C in the ambient environment for 2 h.
Next, thesamples were dried over night at 40 C. The as-prepared nanowireswere annealed at temperatures of 400, 500, 600, 700 and 900 C inthe ambient environment for 2 h.