Journal
CHEMCATCHEM
Volume 11, Issue 17, Pages 4256-4261Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.201900865
Keywords
Electrocatalyst; Ni-Co-hydroxide; Ni2P2O7; Overpotential; Oxygen evolution reaction
Categories
Funding
- National Research Foundation of Korea [NRF-2015M3A7B 4050 424]
Ask authors/readers for more resources
The design and development of materials for the efficient electrochemical evolution of oxygen from hydroxyl ions in alkaline media is of prime importance for reducing energy losses in water-alkaline electrolytes. In this Communication, we report non-noble nano-micro-structured Ni2P2O7 microsheets decorated with nickel-cobalt hydroxide (Ni-Co-hydroxide) nanoflakes for the efficient oxygen evolution reaction (OER). Remarkably, the nano-micro-assembled Ni-Co-hydroxide/Ni2P2O7 structured electrode exhibits superior catalytic activity towards the OER with a relatively low overpotential of 197 mV at a current density of 10 mA/cm(2) in 1.0 M KOH, coupled with excellent long-term stability (12 h). The outstanding OER activity resulted from the nano-micro structure of the prepared electrode with excellent redox activity in an alkaline electrolyte.
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