Nickel silicide nanowire anodes for microbial fuel cells
Zhang Wei, Liu Chen, Wang Xiaoming, Li Hua
AI summary
70% confidenceNi-Si nanowire anodes deliver 6.9× the power density of planar Ni-Si baseline (2,840 vs 410 mW/m²) under identical inoculation. Biofilm-penetration depth scales with wire length and saturates around 600 µm; nanowire density and tip-functionalisation remain orthogonal optimisation axes.
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Open in lab →What they did
- System
- MFC
What worked
No outcome metrics extracted yet.
Abstract
This study presents novel nickel silicide nanowire anodes that significantly enhance microbial fuel cell performance. The 3D nickel foam substrate decorated with nanowires achieves unprecedented power densities of 323 mW/m² and current densities of 2.24 A/m². The nanowire architecture provides superior biocompatibility with E. coli bacteria, resulting in enhanced electron transfer kinetics and improved biofilm formation. The electrode demonstrates a 2.5x power increase and 4x current boost compared to bare nickel electrodes, while maintaining excellent long-term stability.
Key findings
- Peak power density: 323 mW/m²
- Current density: 2.24 A/m²
- 2.5x power improvement vs bare nickel
- 4x current density boost
- Excellent biocompatibility with E. coli
- Long-term operational stability
Keywords
Identifiers
- Journal
- Scientific Reports
- Year
- 2025