Preparation of nickel-iron hydroxides by microorganism corrosion for efficient oxygen evolution
Abstrak
Nickel–iron composites are efficient in catalyzing oxygen evolution. Here, we develop a microorganism corrosion approach to construct nickel–iron hydroxides. The anaerobic sulfate-reducing bacteria, using sulfate as the electron acceptor, play a significant role in the formation of iron sulfide decorated nickel–iron hydroxides, which exhibit excellent electrocatalytic performance for oxygen evolution. Experimental and theoretical investigations suggest that the synergistic effect between oxyhydroxides and sulfide species accounts for the high activity. This microorganism corrosion strategy not only provides efficient candidate electrocatalysts but also bridges traditional corrosion engineering and emerging electrochemical energy technologies. Developing facile strategies to realize the precise construction of Ni-Fe structures is of significance for water oxidation. Here, the authors demonstrate a universal microorganism-assisted corrosion strategy for preparing highly efficient Ni-Fe composites towards oxygen evolution.
Penulis (9)
Huan Yang
Lanqian Gong
Hongming Wang
Chungli Dong
Junlei Wang
K. Qi
Hongfang Liu
Xingpeng Guo
B.Y. Xia
Akses Cepat
- Tahun Terbit
- 2020
- Bahasa
- en
- Total Sitasi
- 261×
- Sumber Database
- Semantic Scholar
- DOI
- 10.1038/s41467-020-18891-x
- Akses
- Open Access ✓