Abstracts Book - IMRC 2018

• SA5-P021
ON THE DISTINCTION OF COORDINATION MODES IN SURFACE
METAL CARBOXYLATES BY MEANS OF XPS. STUDIES WITH
MODEL COMPOUNDS
Edgar Obed Perez Reyes 1 , Oscar Fernando Odio Chacón 1 , Luis Lartundo Rojas 2 , Herlys Viltres
Cobas 1 , Paula Montserrat Crespo Barrera 1 , Edilso Reguera 1
1
Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Legaría, IPN,
Nanotecnología y Materiales Funcionales, Mexico. 2 Centro de Nanociencias y micro y
Nanotecnologías del IPN, Espectroscopia de Fotoelectrónes Inducidos por Rayos X (XPS),
Mexico.
The structure of coordination compounds at the surface of functional materials
is critical in order to unravel the mechanism of interfacial interactions and the
reactivity of the surfaces. Specially, metal carboxylates are of prime interest in
hot topics like solar cells, catalysis and nanoengineering. Customary techniques
like XRD and FTIR are sensible to the bulk structure, but they give poor
information about the surface; on the contrary, XPS senses fundamentally the
chemical environment and the behavior of surface atoms. The main goal of our
work is intended to elucidate by XPS the coordination mode of transition metal
acetates as model compounds aiming to develop a methodological strategy for
more complex surface metal carboxylates. Specifically, we try to correlate the
actual acetate structure with the results the deconvolution of high resolution
spectra for C1s, O1s and core metal orbitals.
Acknowledgment:
LABORATORIO NACIONAL DE CONVERSION Y ALMACENAMIENTO DE ENERGIA
(LNCAE). CONSEJO NACIONAL DE CIENCIA Y TECNOLOGÍA (CONACYT)
Keywords: XPS, Surface Characterization, Metal Carboxylates
Presenting authors email: edgarp656@gmail.com