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

Sugars Electrooxidation at Glassy Carbon Electrode Decorate with Multi-Walled Carbon Nanotubes with Nickel Oxy-Hydroxide

Author(s):
de Sa, Acelino Cardoso [1] ; Paim, Leonardo Lataro [2] ; Stradiotto, Nelson Ramos [1]
Total Authors: 3
Affiliation:
[1] Univ Estadual Paulista, UNESP, Inst Chem, Dept Analyt Chem, BR-14800060 Araraquara, SP - Brazil
[2] Univ Estadual Paulista, UNESP, BR-19274000 Rosana, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: International Journal of Electrochemical Science; v. 9, n. 12, p. 7746-7762, DEC 2014.
Web of Science Citations: 19
Abstract

The glassy carbon electrode modified with carbon nanotubes decorated with nickel oxy-hydroxide (GC/MWCNT/NiOOH) was used to studied electro-oxidation of glucose, galactose, xylose, arabinose and mannose in alkaline medium. Kinetic parameters such as, charge-transfer coefficient, electrocatalytic rate constant and diffusion coefficient were determined for sugars. Galactose exhibited a higher charge-transfer coefficient (0.37) with a diffusion coefficient of 1.3x10(-6) cm(2) s(-1) and showed the higher electrocatalytic rate constant of 2.1x10(4) L mol(-1) s(-1). The modified electrode exhibited a linear response to sugars concentration in the range around of 2.5x10(-4) mol L-1 to 5.6x10(-3) mol L-1 and limits of detection around of 1.9x10(-4) mol L-1 -4.3x10(-4) mol L-1. (AU)

FAPESP's process: 11/20416-1 - Development of electrochemical detectors consisting of metal nanoparticles on BDD and CNT for the determination of carbohydrates in lignocellulosic material of sugar cane using HPLC
Grantee:Leonardo Lataro Paim
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 12/00258-5 - Development of new methods for determination of sugars, furanic aldehydes and ironic acids from lignocellulosic materials derivatives of cane sugar
Grantee:Nelson Ramos Stradiotto
Support type: Program for Research on Bioenergy (BIOEN) - Regular Program Grants
FAPESP's process: 11/19289-5 - Determination of sugar in bagasse and straw of cane sugar by high performance liquid chromatography with electrochemical detection using electrode modified carbon nanotubes with metal oxides
Grantee:Acelino Cardoso de Sá
Support type: Scholarships in Brazil - Doctorate