ADSORPSI ATOM LITIUM PADA SINGLE WALLED CARBON NANOTUBE (SWCNT) UJUNG TERBUKA MENGGUNAKAN METODE SEMIEMPIRIS AM1

Nurazizah, Nurazizah (2018) ADSORPSI ATOM LITIUM PADA SINGLE WALLED CARBON NANOTUBE (SWCNT) UJUNG TERBUKA MENGGUNAKAN METODE SEMIEMPIRIS AM1. Diploma thesis, Universitas Andalas.

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Abstract

ABSTRACT LITHIUM ATOM ADSORPTION ON THE OPEN ENDED SINGLE WALLED CARBON NANOTUBE (SWCNT) USING SEMIEMPIRICAL AM1 METHOD By: Nurazizah (1410412057) Imelda, M.Si*, Refinel, M.S* *Supervisor Nanotechnology is a highly desirable field of research that is in great demand for more in depth study because of the application of nanotechnology that is able penetrate to various aspects, such as electronics, materials, biology, chemistry, and medicine. In addition, because of its hollow structure and good charge transfer properties SWCNT, very well used for absorbent and electronic conductors materials. This research focus on lithium atoms were adsorpbed by open end Single Walled Carbon Nanotube (SWCNT) using semiempirical AM1 method from hyperchem package. Li atoms were dropped on two positions: on top and bridge. Li atoms were interacted chemically, physically and does not interact with C on SWCNT. Band gap (ΔE) value of a atoms were dropped on top position are 3,32593 – 4,61221 eV, SWCNT (4.4) with bridge dropping positions ΔE ranges from 3,90642 – 4,54380 eV. The dropping of Li atoms is able to increase the electrical conductivity of SWCNT. Li atoms decrease BE and Eads of SWCNT as the number of Li atoms dropped, indicating the SWCNT binding power per Li atom decreases as more Li atoms were dropped. Keyword : Single Walled Carbon Nanotube (SWCNT), Li atoms, AM1.

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