ガラス状炭素球の空気賦活

Abstract

Pore development in glass-like carbon spheres with oxidation in dry air was studied through the measurements of oxidation yield, various pore parameters and phenol adsorption. The development of pores was understood by the master curves at 400℃ for oxidation yield, each pore parameters and phenol adsorptivity. The results showed that the conversion between oxidation temperature and time was possible for pore development by air oxidation, i.e., at a temperature between 355 and 430℃ in a flow of dry air. Pore development was supposed to proceed principally the opening of closed pores existed originally in glass-like carbon to form ultramicropores, followed by the collapse and enlargement of ultramicropore to macropore through supermicropore and mesopore.