Synthesis of Ni–TiO2 Nanocomposites as Enzyme–Less, Amperometric Sensors for the Electrooxidation of Glucose

The simple synthesis of a Ni–TiO _2 nanocomposite supported on Vulcan carbon (XC–72 R) for the electrooxidation reaction of glucose is reported. Four transition metal weight ratios were synthesized and characterized. Cyclic voltammetry studies in 0.1 M NaOH demonstrate that the four metal catalysts...

Full description

Saved in:
Bibliographic Details
Published in:ECS Advances 2023-05, Vol.2 (2), p.026502
Main Authors: de los Rios, J. P., Galvan, Vicente, Prakash, G. K. Surya
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The simple synthesis of a Ni–TiO _2 nanocomposite supported on Vulcan carbon (XC–72 R) for the electrooxidation reaction of glucose is reported. Four transition metal weight ratios were synthesized and characterized. Cyclic voltammetry studies in 0.1 M NaOH demonstrate that the four metal catalysts can effectively oxidize 1 mM glucose, with the 3:1 (60%) Ni to Ti nanocomposite yielding the highest current. The 60% Ni–TiO _2 /XC72R catalyst was used to construct an enzyme–less, chronoamperometric sensor for glucose detection in an alkaline medium. Using 50 μ M aliquots of glucose at a potential of +0.7 V (vs Hg/HgO), the sensor responded rapidly (
ISSN:2754-2734
DOI:10.1149/2754-2734/acd404