Regulation of Reconstruction Sites in Spinel NiCo 2 O 4 via Morphology Modulation to Enhance OER Performance
Shaanxi University of Technology · Xiamen University
Abstract
Study of dynamic reconstruction of active sites in spinel oxide-catalyzed oxygen evolution reactions (OER) is of great importance; however, the mechanism of how morphology modulation affects surface reconstruction and the performance of OER is still not well understood. Herein, the effect of morphology modulation (nanorods, nanoflowers, and hierarchical nanoflowers) in spinel NiCo2O4 on the kinetic process and surface reconstruction of metal active sites during OER was studied. Through in situ Raman spectral and EIS characterizations, we found that the metal active sites in NiCo2O4 with different morphologies underwent a surface reconstruction at high potentials, which resulted in faster *OH adsorption than…
Citation impact
- FWCI
- 14.31
- Percentile
- 99%
- References
- 50
Authors
7Topics & keywords
- Spinel
- Oxygen evolution
- Overpotential
- Adsorption
- Morphology (biology)
- Surface reconstruction
- Active site