In U.S. Patent Application 20100015031, the Korea Advance Institute of Science and Technology (KAIST) (Daejeon, KR) reveal a breakthrough in the production of carbon-nitride nanotubes with controlled nano-sized pores on their stems. They also developed the preparation method and control method for size and quantity of nanopores on the carbon nitride nanotubes.
Inventors Jeung-Ku Kang, Jai-Young Lee, Hyun-Seok Kim, Seong-Ho Yang, Kyu-Sung Han, Se-Yun Kim, Jung-Woo Lee and Weon-Ho Sin found that the carbon nitride nanotube prepared through plasma enhanced CVD has nano-sized pores of not more than 1 nm over the structure of the nanotube. They achieved a technical breakthrough to control the size and quantity of such nano-sized pores. The nanofabrication process uses microwave enhanced chemical vapor deposition.
The KAIST invention can increase gas adsorption energy through nano-sized pores existing over the structure of carbon nitride nanotube, and therefore, be employed in gas detection sensors, nano filters, catalyst carriers for fuel cell, hydrogen storage media and other various applications.