Title
Synthesis and characterization of a new ceramic nanomaterial SiO<inf>2</inf>/NPsSm<inf>2</inf>O<inf>3</inf>/C-graphite for the development of electrochemical sensors
Date Issued
01 March 2020
Access level
metadata only access
Resource Type
journal article
Author(s)
Blasques R.V.
Pereira M.A.A.
Mendes A.M.R.V.
Filho N.E.M.
Gomes W.C.
Marty J.L.
Gurgo M.I.P.
Nunes G.S.
Villis P.C.M.
Universidade Federal do Rio Grande do Sul,
Publisher(s)
Elsevier Ltd
Abstract
A new ceramic nanomaterial, SiO2/NPsSm2O3/C-graphite (specific surface area 340 m2 g−1), obtained by the sol-gel process, was synthesized for industrial, pharmaceutical, and environmental purposes. Information on the ceramic formation dynamics and its behavior were obtained by determining the following parameters: surface area, pore volume, imaging and three-dimensional appearance (scanning electron microscopy, coupled to dispersive energy spectroscopy), molecular structure and the presence of functional groups (thermogravimetry, Fourier-transform infrared absorption spectroscopy, and 29Si nuclear magnetic resonance), and electrochemical behavior. SiO2/NPsSm2O3/C-graphite was used to construct electrodes with promising properties and showed that it can be used as a base substrate for the immobilization of electroactive species in electrochemistry and electrocatalysis.
Volume
243
Language
English
OCDE Knowledge area
Nano-tecnología
Subjects
Scopus EID
2-s2.0-85078513340
Source
Materials Chemistry and Physics
ISSN of the container
02540584
Source funding
Fundação de Amparo à Pesquisa e ao Desenvolvimento Científico e Tecnológico do Maranhão
Sponsor(s)
This work was supported by the University of CEUMA-UNICEUMA and FAPEMA (Brazil, MA). The authors would like to thank Dra. Rita de Cassia Mendonça de Miranda (UNICEUMA, Brazil) for all help and friendship.
Sources of information:
Directorio de Producción Científica
Scopus