Diethylenetriamine ion-imprinted silica gel for copper determination in tap water

Autor: Gilvanda Silva Nunes, Fábio L. Pissetti, Paulo Cesar Mendes Villis, Rita de Cassia Mendonça de Miranda, Wolia Costa Gomes, Yoshitaka Gushikem, José Costa Sampaio Filho, Alzira M. S. Lucho

Publikováno v: Journal of Applied Electrochemistry. 48:867-883

This paper proposes the preparation of a hybrid adsorbent material organically modified with N1-[3-(trimethoxysilyl)propyl]diethylenetriamine and imprinted ionically with Cu(II) ions. The structure of functionalized silica matrix with an organic grou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d9723f9c4af4f043fcb30a83fbb4ff7a
https://doi.org/10.1007/s10800-018-1206-2

FTO MODIFIED ELECTRODES BY DIRECT GOLD ELECTRODEPOSITION: PRODUCTION, CHARACTERIZATION AND ELECTROCHEMICAL SENSOR APLICATION

Autor: Fábio L. Pissetti, Rogério de Oliveira, Alzira M. S. Lucho

Publikováno v: Química Nova.

Chemically modified electrodes have been studied to obtain new and better electrochemical sensors. Transparent conductive oxides, such as fluorine-doped tin-oxide (FTO), shows electrical conductivity comparable to metals and are potential candidates

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d624c6a8491efbfeb8d2f31ecfb3c705
https://doi.org/10.5935/0100-4042.20160011

Electrooxidation of nitrite on a silica–cerium mixed oxide carbon paste electrode

Autor: Paulo Cesar Mendes Villis, Andréia de Morais, Yoshitaka Gushikem, Alzira M. S. Lucho, Gustavo Silveira, Fábio L. Pissetti, Camila M. Maroneze

Publikováno v: Journal of Colloid and Interface Science. 369:302-308

A silica–cerium mixed oxide (SiCe) was prepared by the sol–gel process, using tetraethylorthosilicate and cerium nitrate as precursors and obtained as an amorphous solid possessing a specific surface area of 459 m 2 g −1 . Infrared spectroscopy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90632eeb9cfabfaa4561d3a75dc1e951
https://doi.org/10.1016/j.jcis.2011.11.060

Thin film of copper hexacyanoferrate dispersed on the surface of a conducting carbon ceramic material, SiO2/ZrO2/C-graphite: characteristics and electrochemical studies

Autor: Maria Suzana P. Francisco, Richard Landers, Alzira M. S. Lucho, Yoshitaka Gushikem, Eduardo Marafon

Publikováno v: Journal of the Brazilian Chemical Society, Volume: 17, Issue: 8, Pages: 1605-1611, Published: DEC 2006
Journal of the Brazilian Chemical Society v.17 n.8 2006
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ

SiO2/ZrO2/C-graphite materials (SZC) were prepared by the sol-gel method presenting two compositions and designated as: (a) SZC30 (SiO2= 50%, ZrO2= 20%, C= 30%) and (b) SZC20 (SiO2 =60%, ZrO2= 20%, C= 20%) in wt.%. The material structure was investig

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae33bee75656181ebe23d19c8f5dda8d
https://doi.org/10.1590/s0103-50532006000800018

Electrochemical polymerization of furfural on a platinum electrode in aqueous solutions of potassium biphthalate

Autor: Jorge Luiz Joaquim Hallal, Alzira M. S. Lucho, Reinaldo Simões Gonçalves

Publikováno v: Materials Research, Vol 8, Iss 1, Pp 23-29 (2005)
Materials Research v.8 n.1 2005
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Materials Research, Volume: 8, Issue: 1, Pages: 23-29, Published: MAR 2005

Three different electrochemical methods confirm the growth processes of polyfurfural on platinum electrodes in aqueous solutions. The electrochemical oxidative polymerization of furfural occurs only with 0.10 mol L-1 potassium biphthalate as the supp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b1d4711a793c84e27a60d5749f264d0
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392005000100006