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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Direct Preparation and Characterization of Copper Pentacyanonitrosylferrate Nanoparticles

Full text
Author(s):
Do Carmo, D. R. [1] ; Souza, M. M. [1] ; Bicalho, U. O. [1] ; Dos Santos, V. S. [1] ; Souza, J. P. [1] ; Silvestrini, D. R. [1]
Total Authors: 6
Affiliation:
[1] Univ Estadual Paulista, Fac Engn Ilha Solteira, Dept Quim & Fis, BR-15385000 Ilha Solteira, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Journal of Nanomaterials; 2015.
Web of Science Citations: 2
Abstract

The present work describes the preparation of nanoparticles of copper pentacyanonitrosyl complexes starting from the compound sodium nitroprusside. Copper pentacyanonitrosylferrate (NCuNP) nanoparticles were successfully synthesized by using deionized water and formamide as solvent. The material was characterized by Fourier-transforming infrared spectroscopy (FT-IR), Xray diffraction (XRD), ultraviolet-visible (UV-Vis) spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and cyclic voltammetry (CV). The results revealed that the electronic spectra of NCuNP exhibited a broad intervalence charge transfer band at 685 nm. An XRD peak broadening pattern of the NCuNP was verified, indicating a particle decrease when formamide is used. The particle size of NCuNP is estimated to be 80 nm. The cyclic voltammogram of the modified graphite paste electrode with NCuNP showed two redox pairs with formal potentials E-theta' = 0.36 V and E-theta' = 0.78 V (nu = 20mV s(-1); KCl 1.0 M), attributed to the redox process Cu-I/Cu-II and {[}Fe-II(CN)(5)NO]/{[}Fe-III(CN)(5)NO], respectively. The graphite paste electrode with NCuNP presents electrocatalytic response for Sulfite determination. (AU)

FAPESP's process: 12/11306-0 - Electrochemical quantification of analytes of environmental and biological interest, using new materials prepared from functionalized silsesquioxanes.
Grantee:Daniela Silvestrini Fernandes
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 12/05438-1 - Development of novel nanostructured organically functionalized hybrid silsesquioxanes: preparation, characterization and its application as a sensor of compounds and ions of environmental and biological interest
Grantee:Devaney Ribeiro Do Carmo
Support type: Regular Research Grants