Hi,

I am preparing nanotubes of graphitic carbon nitride g-C3N4. One very important step in its synthesis involves annealing for which I have to place my dried sample in a chamber furnace and heat it at a rate of 10°C/min to 450°C for 2h. Since annealing involves furnace cooling, how long should it take my sample to cool, and after how many hours should I withdraw it?

Regards,

Abdul Wahab.