Amperometric hydrazine sensor based on the use of Pt-Pd nanoparticles placed on reduced graphene oxide nanosheets.

Clicks: 244
ID: 4931
2019
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Steady

Ranked #53 of 75 articles by views in Mikrochimica acta

Most read Least read

Bar heights use a square-root scale.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
An amperometric method for hydrazine detection is described that is based on the use of electrochemically reduced graphene oxide (ERGO) that was modified with Pt-Pd nanoparticles. A glassy carbon electrode (GCE) was first modified with GO nanosheets and then electrochemically reduced, by applying a negative potential of -1.1 V, to form a film of ERGO. The ERGO-modified GCE was further modified by immersing it into a solution containing Pt(II) and Pd(II) ions solution and reduction via cyclic voltammetry to form the respective nanoparticles. The morphology and structure of the nanohybrid were characterized using field emission scanning electron microscopy (FESEM), atomic force microscopy and X-ray energy dispersive spectroscopy. FESEM images revealed the Pt-Pd nanoparticles on ERGO to have dimensions of <100 nm. Cyclic voltammetry of this GCE showed the oxidation current for hydrazine in 0.1 M NaOH solution to be higher than that for a Pt-Pd/GCE or an ERGO/GCE. In parallel, the overpotential for hydrazine oxidation is reduced. The amperometric nanosensor, best operated at a working potential of -0.71 V (vs. Ag|AgCl|KCl), has a linear response in the 0.007-5.5 mM hydrazine concentration range and a 1.7 μM detection limit. It has good selectivity over other species. Graphical abstract Pt-Pd nanoparticles were placed on electrochemically reduced graphene oxide nanosheets and then used to modify a glassy carbon electrode. A sensor was obtained that can quantify hydrazine in 0.1 M NaOH solution with a 1.7 μM detection limit.
Reference Key
ghasemi2019amperometricmikrochimica Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Ghasemi, Shahram;Hosseini, Sayed Reza;Hasanpoor, Faeze;Nabipour, Shima;
Journal Mikrochimica acta
Year 2019
DOI
10.1007/s00604-019-3704-2
URL
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.