TY - JOUR
T1 - Raman scattering and optical properties of lithium nanoparticles obtained by green synthesis
AU - Álvarez, Ramón A.B.
AU - Cortez-Valadez, M.
AU - Britto-Hurtado, R.
AU - Bueno, L. Oscar Neira
AU - Flores-Lopez, N. S.
AU - Hernández-Martínez, A. R.
AU - Gámez-Corrales, R.
AU - Vargas-Ortiz, R.
AU - Bocarando-Chacon, J. G.
AU - Arizpe-Chavez, H.
AU - Flores-Acosta, M.
N1 - Publisher Copyright:
© 2015 Published by Elsevier B.V.
PY - 2015/3
Y1 - 2015/3
N2 - The first report on lithium nanoparticles synthesized experimentally is presented. The nanoparticles were obtained using the extract of Opuntia ficus-indica through "green synthesis". The optical, structural and vibrational properties were studied through optical absorption, TEM microscopy and Raman spectroscopy. The particles show a size of approximately 5 nm. The absorption bands were found at 315 and 415 nm in the samples after the synthesis of the nanoparticles. One Raman band was detected at around 280 cm-1. Several levels of approximation of the density functional theory and the Hartree-Fock method on the structural and vibrational study of the lithium clusters (Lin, n = 2-18) are incorporated. A radial breathing mode (RMB) type Raman mode was found for the case Lin (n > 3) in the predicted Raman spectrum. This mode shows the highest relative intensity for each case, and a shift to lower wavenumbers when the amount of atoms in the cluster increases.
AB - The first report on lithium nanoparticles synthesized experimentally is presented. The nanoparticles were obtained using the extract of Opuntia ficus-indica through "green synthesis". The optical, structural and vibrational properties were studied through optical absorption, TEM microscopy and Raman spectroscopy. The particles show a size of approximately 5 nm. The absorption bands were found at 315 and 415 nm in the samples after the synthesis of the nanoparticles. One Raman band was detected at around 280 cm-1. Several levels of approximation of the density functional theory and the Hartree-Fock method on the structural and vibrational study of the lithium clusters (Lin, n = 2-18) are incorporated. A radial breathing mode (RMB) type Raman mode was found for the case Lin (n > 3) in the predicted Raman spectrum. This mode shows the highest relative intensity for each case, and a shift to lower wavenumbers when the amount of atoms in the cluster increases.
KW - DFT approximations
KW - Green synthesis
KW - Lithium nanoparticles
KW - Radial breathing modes
KW - Raman in metal nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=84922576058&partnerID=8YFLogxK
U2 - 10.1016/j.vibspec.2015.02.001
DO - 10.1016/j.vibspec.2015.02.001
M3 - Artículo
SN - 0924-2031
VL - 77
SP - 5
EP - 9
JO - Vibrational Spectroscopy
JF - Vibrational Spectroscopy
ER -