Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 55, Issue 30, Pages 8670-8674Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201604372
Keywords
cobalt nitride; electrocatalysis; nanostructures; oxygen evolution; water splitting
Categories
Funding
- Singapore MOE [RG98/15]
- NIE AcRF [RS 6/14 RSR]
- Foundation of State Key laboratory of Coal Conversion [J16-17-909]
Ask authors/readers for more resources
Electrochemical splitting of water to produce hydrogen and oxygen is an important process for many energy storage and conversion devices. Developing efficient, durable, low-cost, and earth-abundant electrocatalysts for the oxygen evolution reaction (OER) is of great urgency. To achieve the rapid synthesis of transition-metal nitride nanostructures and improve their electrocatalytic performance, a new strategy has been developed to convert cobalt oxide precursors into cobalt nitride nanowires through N-2 radio frequency plasma treatment. This method requires significantly shorter reaction times (about 1 min) at room temperature compared to conventional high-temperature NH3 annealing which requires a few hours. The plasma treatment significantly enhances the OER activity, as evidenced by a low overpotential of 290 mV to reach a current density of 10 mA cm(-2), a small Tafel slope, and long-term durability 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