Copper Hexacyanoferrate
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Material carbono ceramico condutor SiO2/ZrO2/C-grafite : sintese, caracterização e aplicações / SiO2/ZrO2/C-graphite conducting carbon ceramic material : synthesi characterization and application
SiO2/ZrO2/C-graphite was prepared by the sol-gel method in two compositions: (A) SZC30 (SiO2 = 50 %, ZrO2 = 20 %, C = 30 %) e (B) SZC20 (SiO2 = 60 %, ZrO2 = 20 %, C = 20 %) in % m/m, characterized and used to prepare electrodes. The carbon ceramic material was thermally treated at 400, 600, 800 and 1000 °C in nitrogen atmosphere, and it was observed that it
Publicado em: 2008
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2. Synthesis and characterization of copper hexacyanoferate nanoparticles and its application in Glucose Biosensor and electrochromics electrodes / Síntese e caracterização de nanopartículas de hexacianoferrato de cobre e sua aplicação em biossensores de glicose e eletrodos eletrocrômicos
In this work, the sonochemical synthesis and the characterization of copper hexacyanoferrate nanoparticles for producing ultra thin films with controlled thickness is reported. Due to its nanometric structure and the excess of superficial negative charges, the proposed immobilization methods were the electrostatic deposition layer by layer (LBL), using the P
Publicado em: 2007
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3. Thin film of copper hexacyanoferrate dispersed on the surface of a conducting carbon ceramic material, SiO2/ZrO2/C-graphite: characteristics and electrochemical studies
O material SiO2/ZrO2/C-graphite (SZC) foi preparado pelo método sol-gel apresentando duas composições, designadas por: (a) SZC30 (SiO2= 50%, ZrO2= 20%, C= 30%) e (b) SZC20 (SiO2 =60%, ZrO2= 20%, C= 20%) em % m. A estrutura do material foi investigada por difração de raios X (XRD), microscopia eletrônica de transmissão de alta resolução (HR-TEM) e es
Journal of the Brazilian Chemical Society. Publicado em: 2006-12
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4. Oxido misto de SiO2/SnO2,SiO2/SnO2/Fosfato : propriedades e aplicações / The SiO2/SnO2, SiO2/SnO2/fosfato mixed oxide : properties and applications
The present work describes the preparation of SiO2/SnO2 mixed oxide obtained by the sol-gel processing method with Sn compositions (in wt %) of 4, 13 and 18%. The high specific surface and the presence of Lewis and Brfnsted acid sites, constitutes an interesting substrate for preparing new classes of chemically modified electrodes. In a specific application,
Publicado em: 2005
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5. Determination of vitamin B6 (pyridoxine) in pharmaceutical preparations by cyclic voltammetry at a copper(II) hexacyanoferrate(III) modified carbon paste electrode
Um eletrodo de pasta de carbono modificado com o complexo de hexacianoferrato(III) de cobre(II) (CuHCF) foi utilizado na determinação eletroanalítica de piridoxina (vitamina B6) em formulações farmacêuticas usando voltametria cíclica. Diversos parâmetros, tais como: composição do eletrodo, melhor solução eletrolítica, efeito do pH, velocidade de
J. Braz. Chem. Soc.. Publicado em: 2003-04
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6. Propriedades eletroquimicas de hexacianoferratos absorvidos pela silica gel quimicamente modificada com oxido de Zr(IV)
Silica gel with a specific surface area of 424 m.g and an average pore diameter of 6 nm, was coated with Zr(IV) oxide by reacting ZrCl4 or ZrOCl2 with SiO2. The amount of Zr(IV) grafted on SiO2, hereafter denoted as SZrOH, was 470 mmol.g and 250 mol.g using respectively, ZrCl4 and ZrOCI2. The hexacyanoferrate(ll) complex (HCF) was adsorbed by SZrOH in acid s
Publicado em: 1994