A numerical study of the thermodynamic properties of a superconducting quantum cylinder in a longitudinal magnetic field is carried out. Closed-form expressions for the critical temperature, the free energy, the heat capacity jump, and the magnetization difference between the superconducting and normal phases as functions of the nanotube parameters are obtained in limit cases.
sulfate have been supported on Al 2 O 3 [ 1 ], activated carbon [ 2 , 3 ], SiO 2 [ 4 ], HZSM-5 [ 5 ], HMS [ 6 ] and carbon nanotube [ 7 ] for acid catalysis.
ZrO 2 is widely used as a high-performance carrier in the catalysis field including
Authors:Eudes Lorençon, Rodrigo G. Lacerda, Luiz O. Ladeira, Rodrigo R. Resende, André S. Ferlauto, Ulf Schuchardt, and Rochel M. Lago
Carbon nanotubes (CNTs) have been intensely investigated due to their unique chemical, mechanical, and electrical behavior. The inherent properties of CNTs make them versatile supports for metallic nanoparticles
Authors:Yujiao Xie, Chang Liu, Hanbing He, and Xiaohua Lu
Protonated titanate nanotubes synthesized by the hydrothermal method have become the target of many studies in recent years because of its unique combination of physicochemical and structural properties [ 1
Authors:Haiying Wang, Yucheng Yang, Jianhong Wei, Ling Le, Yang Liu, Chunxu Pan, Pengfei Fang, Rui Xiong, and Jing Shi
doped catalysts [ 27 ].
Furthermore, TiO 2 nanotubes (TNTs) display high performance levels for their potential in improving photocatalytic activity because of their large surface area. Schmuki and coworkers and Craig A. Grimes and coworkers
, the multi-wall carbon nanotube (MWNT) and the single-wall carbon nanotube (SWNT). A SWNT is a graphene sheet rolled into a cylinder with typical diameter on the order of 1.4 nm. However, a MWNT consists of several concentric cylinders with diameters
Authors:Goio Etxebarria, Mikel Gomez-Uranga, and Jon Barrutia
have already been discovered, although they are constantly being improved, and require massive amounts of basic nanomaterials such as multiwalled carbon nanotubes (MWNCTs), which means carbon nanotube (CNTs) 1 production capacity must be increased