Polyaniline/reduced graphene oxide-modified carbon fiber brush anode for high-performance microbial fuel cells
| Autor: | Zhaokun Ma, Na Zhao, Huaihe Song, Dingling Wang, Yang'en Xie |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Microbial fuel cell
Materials science Renewable Energy Sustainability and the Environment Graphene Oxide Energy Engineering and Power Technology Mesophase 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences law.invention Anode chemistry.chemical_compound Fuel Technology chemistry Polymerization Chemical engineering law Polyaniline Fiber 0210 nano-technology |
| Zdroj: | International Journal of Hydrogen Energy. 43:17867-17872 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2018.08.007 |
| Popis: | Polyaniline (PANI)/reduced graphene oxide (rGO) were synthesized by in-situ polymerization and were decorated on mesophase pitch-based carbon fiber brush (Pitch-CB) anode to promote microbial fuel cells (MFCs) power production. Mesophase pitch-based carbon fiber brush (Pitch-CB) becomes one of the most important research objects in MFCs. The mesophase pitch-based carbon fiber (CF) has excellent conductivity (about 2.0 μΩ m) compared with PAN-based CF (about 30 μΩ m). But the high conductive CF's surfaces have strong inert, and they are relatively smooth, which make it difficult to be adhered and enriched by microbes. By applying the PANI/rGO composite anode, the maximum power density (MPD) was increased to 862 mW m−2, which was approximately 1.21 times higher than that of the Pitch-CB. The PANI can improve the surface roughness and surface potential of CFs, thus enhancing the adhesion of microbes and electrogenic performance of MFC. After the rGO was doped, the electrogenic performance of MFC was further improved. This study introduces a promising modifying method for the fabrication of high-performance anodes from simple, environment-friendly materials. |
| Databáze: | OpenAIRE |
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