Polyelectrolyte-Induced Reduction of Exfoliated Graphite Oxide: A Facile Route to Synthesis of Soluble Graphene Nanosheets
Here we report that poly(diallyldimethylammonium chloride) (PDDA) acts as both a reducing agent and a stabilizer to prepare soluble graphene nanosheets from graphite oxide. The results of transmission electron microscopy, X-ray diffraction, X-ray photoeletron spectroscopy, atomic force microscopy, and fourier transform infrared indicated that graphite oxide was successfully reduced to graphene nanosheets which exhibited single-layer structure and high dispersion in various solvents. The reaction mechanism for PDDA-induced reduction of exfoliated graphite oxide was proposed. Furthermore, PDDA facilitated the in-situ growth of highly-dispersed Pt nanoparticles on the surface of graphene nanosheets to form Pt/graphene nanocomposites, which exhibited excellent catalytic activity towards formic acid oxidation. This work presents a facile and environmentally friendly approach to the synthesis of graphene nanosheets, opens up new possibility for preparing graphene and graphene-based nanomaterials for large-scale applications.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1012876
- Report Number(s):
- PNNL-SA-77808; 40067
- Journal Information:
- ACS Nano, 5(3):1785-1791, Journal Name: ACS Nano, 5(3):1785-1791 Journal Issue: 3 Vol. 5
- Country of Publication:
- United States
- Language:
- English
Similar Records
Graphene decorated with PtAu alloy nanoparticles: facile synthesis and promising application for formic acid oxidation
Self assembly of acetylcholinesterase on a gold nanoparticles–graphene nanosheet hybrid for organophosphate pesticide detection using polyelectrolyte as a linker
Related Subjects
77 NANOSCIENCE AND NANOTECHNOLOGY
CARBON OXIDES
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
COMPOSITE MATERIALS
Environmental Molecular Sciences Laboratory
FORMIC ACID
GRAPHITE
NANOSTRUCTURES
OXIDATION
PDDA
Pt nanoparticles
REDUCING AGENTS
REDUCTION
SYNTHESIS
electrocatalysts
formic acid
graphene
graphite oxide
in-situ growth