Back to Search
Start Over
Size Effects of Pt Nanoparticle/Graphene Composite Materials on the Electrochemical Sensing of Hydrogen Peroxide
- Source :
- Journal of Nanomaterials, Vol 2015 (2015)
- Publication Year :
- 2015
- Publisher :
- Hindawi Limited, 2015.
-
Abstract
- The electrochemical detection of hydrogen peroxide (H2O2) has attracted much attention recently. Meanwhile, the size of nanoparticles which significantly influences electrocatalytic activity is crucial for electrocatalysts. Hence, we prepared five different size-selected Pt/graphene-modified glassy carbon (GC) electrodes to characterize H2O2level via electrochemical measurements. During the preparation of the nanocomposites, size-selected Pt nanoparticles (NPs) with the mean diameter of 1.3, 1.7, 2.9, and 4.3 nm were assembled onto the graphene surfaces. The electrochemical measurement results are size-dependent for Pt NPs when sensing H2O2. When all cyclic voltammogram results from various electrodes are compared, the Pt-1.7 nm/G-modified GC electrode has the highest reduction current, the best detection limit, and the best sensitivity.
- Subjects :
- Detection limit
Nanocomposite
Materials science
Article Subject
Graphene
Nanoparticle
Nanotechnology
Glassy carbon
Electrochemistry
law.invention
chemistry.chemical_compound
chemistry
Chemical engineering
law
Electrode
lcsh:Technology (General)
lcsh:T1-995
General Materials Science
Hydrogen peroxide
Subjects
Details
- Language :
- English
- ISSN :
- 16874129 and 16874110
- Volume :
- 2015
- Database :
- OpenAIRE
- Journal :
- Journal of Nanomaterials
- Accession number :
- edsair.doi.dedup.....1ff621ed77fb9c438f4a248bca7ceea3