Methods of producing nanowires and resulting nanowires are described. In one implementation, a method of producing nanowires includes energizing (i) a metal-containing reagent; (ii) a templating agent; (iii) a reducing agent; and (iv) a seed-promoting agent (SPA) in a reaction medium and under conditions of a first temperature for at least a portion of a first duration, followed by a second temperature for at least a portion of a second duration, and the second temperature is different from the first temperature.