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A highly sensitive electrochemical sensor for the determination of methanol based on PdNPs@SBA-15-PrEn modified electrode.
- Source :
-
Analytical biochemistry [Anal Biochem] 2018 May 01; Vol. 548, pp. 32-37. Date of Electronic Publication: 2018 Feb 21. - Publication Year :
- 2018
-
Abstract
- In this study, a novel electrochemical sensor for the determination of methanol based on palladium nanoparticles supported on Santa barbara amorphous-15- PrNHEtNH <subscript>2</subscript> (PdNPs@SBA-15-PrEn) as nanocatalysis platform is presented. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and electrochemical methods are employed to characterize the PdNPs@SBA-15-PrEn nanocomposite. The Nafion-Pd@SBA-15-PrEn modified glassy carbon electrode (Nafion-PdNPs@SBA-15-PrEn/GCE) displayed the high electrochemical activity and excellent catalytic characteristic for electro-oxidation of methanol in an alkaline solution. The electro-oxidation performance of the proposed sensor was investigated using cyclic voltammetry (CV) and amperometry. The sensor exhibits a good sensitivity of 0.0905 Amol <superscript>-1</superscript> Lcm <superscript>-2</superscript> , linear range of 20-1000 μM and the corresponding detection limit of 12 μM (3σ). The results demonstrate that the Nafion-PdNPs@SBA-15-PrEn/GCE has potential as an efficient and integrated sensor for methanol detection.<br /> (Copyright © 2018 Elsevier Inc. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1096-0309
- Volume :
- 548
- Database :
- MEDLINE
- Journal :
- Analytical biochemistry
- Publication Type :
- Academic Journal
- Accession number :
- 29476709
- Full Text :
- https://doi.org/10.1016/j.ab.2018.01.033