Abstracts Book - IMRC 2018

• SD6-P007
CHARACTERIZATION OF MWCNT@SnxTi1-xO2 COMPOSITES FOR
LITHIUM-ION BATTERIES
Patricia Altuzar Coello 1 , Mirna Ramírez Vargas 1 , Oscar Jaramillo Quintero 2 , Marina Rincón
González 1
1 Universidad Nacional Autónoma de México, Instituto de Energías Renovables, Mexico.
2 Universidad Nacional Autónoma de México, CONACYT-Instituto de Energías Renovables,
Mexico.
These studies were performed to characterize solid solution of Sn x Ti 1-x O 2
obtained by hydrothermal method (1) using MWCNT as nucleation sites. The asdeposited
composite MWCNT@Sn x Ti 1-x O 2 composites with controlled molar
ratio, i.e. x = 0.25, 0.5, 0.75 and 1, were characterized by X-ray diffraction (XRD),
Fourier transform Infrared Spectroscopy (FT-IR), Thermogravimetric Analysis
(TGA) and Field Emission Scanning electron microscopy (FESEM). These
measurements evidence the formation of a substitutional solid solution when
the Ti content was increased x = 0 to x = 1, given that the calculated values of
lattice parameters deviate linearly between those reported for cassiterite and
rutile in the Powder Diffaction File. Crystallite size, show a clear dependence on
Ti content with Sn 0.75 Ti 0.25 O 2 composite showing the lowest value. FESEM images
and FT-IR indicated a randomly distributed cluster/agglomerates of oxide
nanoparticles along the MWCNT surface and a weak interaction between
MWCNT and Sn x Ti 1-x O 2 nanoparticles.
1. Próspero Acevedo-Peña, Marta Haro, Marina E. Rincón, Juan Bisquert, Germán
García-Belmonte. Journal of Power Sources 268 (2014) 397-403.
Keywords: nanomaterials, nanotubes, composite
Presenting authors email: peac@ier.unam.mx