Ammonia Generation via a Graphene-Coated Nickel Catalyst
AbstractA novel graphene-coated Ni electrode was developed in this investigation to improve corrosion resistance while unexpectedly enhancing the ammonia generation rate in the electrochemically induced urea to ammonia (eU2A) process, which is an electrochemical onsite ammonia generation method. The development of the electrode is crucial for the eU2A reactions since in the ammonia generation process, the concentration of ammonia is inevitably high on the surface of the electrode, leading to severe corrosion of the electrode and the loss of generated ammonia as well. In this paper, the graphene was derived from raw coal by using the chemical vapor deposition method and self-lifted onto a Ni electrode to form a protective layer for corrosion prevention. Transmission electron microscopy showed the synthesized graphene had few-layers and Raman spectroscopy indicated that the coating of graphene was stable during the eU2A reaction. As a result, the ammonia corrosion of the Ni electrode was dramatically reduced by ~20 times with the graphene coating method. More importantly, a higher ammonia generation rate (~2 times) was achieved using the graphene-coated Ni working electrode compared to a bare Ni electrode in the eU2A process. View Full-Text
- Supplementary File 1:
PDF-Document (PDF, 1598 KB)
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Lu, F.; Botte, G.G. Ammonia Generation via a Graphene-Coated Nickel Catalyst. Coatings 2017, 7, 72.
Lu F, Botte GG. Ammonia Generation via a Graphene-Coated Nickel Catalyst. Coatings. 2017; 7(6):72.Chicago/Turabian Style
Lu, Fei; Botte, Gerardine G. 2017. "Ammonia Generation via a Graphene-Coated Nickel Catalyst." Coatings 7, no. 6: 72.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.