@article {2677, title = {Chemistry of Single-Walled Carbon Nanotubes}, journal = {J. Comput. Theor. Nanosci.}, volume = {6}, number = {6}, year = {2009}, note = {ISI Document Delivery No.: 441BUTimes Cited: 0Cited Reference Count: 146Yeung, Charles See Tian, Wei Quart Liu, Lei Vincent Wang, Yan AlexanderSp. Iss. SI}, month = {Jun}, pages = {1213-1235}, type = {Review}, abstract = {

Single-walled carbon nanotubes (SWCNTs) have received significant attention from the scientific community over the past 15 years. Of particular interest is the potential of these macromolecules for use in molecular electronics, chemical sensory technology, nanobiology, and transition metal catalysis, For effective applications, the selective functionalization of the aforementioned all-carbon framework is necessary but has been met with considerable challenges. Herein, we review our approach to the exploration of structural and electronic properties of SWCNTs within density functional theory (DFT). Our investigations include mechanistic studies on chemical reactions of SWCNTs with defect and exploration of transition metal doped variants and their ability to adsorb small gas molecules.

}, keywords = {AB-INITIO, Defect, DOPED CARBON, ELECTRICAL-CONDUCTIVITY, ELECTROCHEMICALLY DEPOSITED FILMS, Electronic Structure, Gas Adsorption, GAUSSIAN-TYPE BASIS, GENERALIZED GRADIENT APPROXIMATION, LASER-ABLATION, MOLECULAR-ORBITAL METHODS, NANORODS, NITRIC-OXIDE, Nitrogen Monoxide, platinum, SIDEWALL FUNCTIONALIZATION, Single-Walled Carbon Nanotubes}, isbn = {1546-1955}, url = {://000265745100002}, author = {Yeung, C. S. and Tian, W. Q. and Liu, L. V. and Y. A. Wang*} } @article {2319, title = {Adsorption of small gas molecules onto Pt-doped single-walled carbon nanotubes}, journal = {J. Phys. Chem. C}, volume = {112}, number = {19}, year = {2008}, note = {ISI Document Delivery No.: 297XATimes Cited: 15Cited Reference Count: 108Yeung, Charles See Liu, Lei Vincent Wang, Yan Alexander}, month = {May}, pages = {7401-7411}, abstract = {

The adsorption of small gaseous molecules to the metal center in Pt-doped (5,5) single-walled carbon nanotubes has been explored within density functional theory. A model system consisting of a single Pt atom residing in the middle of a carbon nanotube with capping H atoms is used for our investigation. For all gases studied, the overall process of adsorption was found to be exothermic, where the affinity strongly depended on the orientation of the molecule. By examining the density of states and molecular orbitals of these nanotube-adsorbate complexes in comparison to the bare Pt-doped nanotube, we show that the electronic structure of these materials is strongly influenced by the presence of gases. Hence, we propose an application of Pt-doped single-walled carbon nanotubes as gas sensors and hope to motivate experimental work in this field.

}, keywords = {AB-INITIO, COVALENT FUNCTIONALIZATION, ELECTRONIC-PROPERTIES, INTERMOLECULAR INTERACTIONS, LASER-ABLATION, NO, PLATINUM COMPLEXES, PT(111), SIDEWALL FUNCTIONALIZATION, TRANSITION-METAL}, isbn = {1932-7447}, url = {://000255649500014}, author = {Yeung, C. S. and Liu, L. V. and Y. A. Wang*} }