Water Oxidation Electrocatalyzed by an Efficient Mn 3 O 4 /CoSe 2 Nanocomposite
University of Science and Technology of China · National Synchrotron Radiation Laboratory
Abstract
The design of efficient, cheap, and abundant oxygen evolution reaction (OER) catalysts is crucial to the development of sustainable energy sources for powering fuel cells. We describe here a novel Mn(3)O(4)/CoSe(2) hybrid which could be a promising candidate for such electrocatalysts. Possibly due to the synergetic chemical coupling effects between Mn(3)O(4) and CoSe(2), the constructed hybrid displayed superior OER catalytic performance relative to its parent CoSe(2)/DETA nanobelts. Notably, such earth-abundant cobalt (Co)-based catalyst afforded a current density of 10 mA cm(-2) at a small overpotential of ~0.45 V and a small Tafel slope down to 49 mV/decade, comparable to the best performance of the…
Citation impact
- FWCI
- 23.10
- Percentile
- 100%
- References
- 33
Authors
5- MGMin‐Rui GaoCorresponding
University of Science and Technology of China, National Synchrotron Radiation Laboratory
- YXYun‐Fei Xu
University of Science and Technology of China, National Synchrotron Radiation Laboratory
- JJJun Jiang
University of Science and Technology of China, National Synchrotron Radiation Laboratory
- YZYa‐Rong Zheng
National Synchrotron Radiation Laboratory, University of Science and Technology of China
- SYShu‐Hong Yu
University of Science and Technology of China, National Synchrotron Radiation Laboratory
Topics & keywords
- Tafel equation
- Overpotential
- Chemistry
- Electrocatalyst
- Oxygen evolution
- Catalysis
- Cobalt
- Chemical engineering