Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 3, Pages 2137-2145Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am4052552
Keywords
Graphene; ammonia oxidation; platinum; RoDSE; unsupported electrodeposition
Funding
- NASA-URC [NNX10AQ17A]
- NSF-NSEC Center for Hierarchical Manufacturing Grant [CHM-CMMI-0531171]
- NSF: The National Science Foundation [DMR-1103730]
- NIH-RCMI: RCMI [5G12RR013646-12]
- National Center for Research Resources [5G12RR013646-12]
- National Institute on Minority Health and Health Disparities from the National Institutes of Health [G12MD007591]
- NSF-PREM, through the NSF PREM [DMR 0,934,218]
- NSF-EPSCoR Institute for Functional Nanomaterials (IFN) [EPS-1002410]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1103730] Funding Source: National Science Foundation
- Office Of The Director
- Office of Integrative Activities [1002410] Funding Source: National Science Foundation
Ask authors/readers for more resources
The electrochemical reduction of highly oxidized unsupported graphene oxide nanosheets and its platinum electrodeposition was done by the rotating disk slurry electrode technique. Avoiding the use of a solid electrode, graphene oxide was electrochemically reduced in a slurry solution with a scalable process without the use of a reducing agent. Graphene oxide nanosheets were synthesized from carbon platelet nanofibers to obtain highly hydrophilic layers of less than 250 nm in width. The graphene oxide and electrochemically reduced graphene oxide/Pt (erGOx/Pt) hybrid materials were characterized through different spectroscopy and microscopy techniques. Pt nanoparticles with 100 facets, clusters, and atoms at erGOx were identified by high resolution transmission electron microscopy (HRTEM). Cyclic voltammetry was used to characterize the electrocatalytic activity of the highly dispersed erGOx/Pt hybrid material toward the oxidation of ammonia, which showed a 5-fold current density increase when compared with commercially available Vulcan/Pt 20%. This is in agreement with having Pt (100) facets present in the HRTEM images of the erGOx/Pt material.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available